ORCID Profile
0000-0002-1276-5858
Current Organisation
Qingdao University
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Physical Chemistry (Incl. Structural) | Synthesis of Materials | Colloid and Surface Chemistry | Electrochemistry | Renewable Power and Energy Systems Engineering (excl. Solar Cells) | Nanomaterials | Catalysis and Mechanisms of Reactions | Functional Materials | Materials Engineering | Technology not elsewhere classified | Environmental Nanotechnology
ANZSRC Socio-Economic Objective (SEO)
Energy Storage (excl. Hydrogen) | Expanding Knowledge in the Chemical Sciences | Rehabilitation of Degraded Fresh, Ground and Surface Water Environments | Solar-Photovoltaic Energy | Expanding Knowledge in Engineering |
Related Links
Publications
Biomass-derived carbon electrode materials for supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7SE00099E
Abstract: This review provides a summary of recent research progress towards biomass-derived carbon electrode materials, including specific cellulose-, lignin- and hemicellulose-derived carbon electrode materials, for supercapacitors.
The electrocapacitive properties of hierarchical porous reduced graphene oxide templated by hydrophobic CaCO3 spheres
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3TA13105J
Characterization of a zeolite-templated carbon for H2 storage application
Publisher: Elsevier BV
Date: 02-2009
Reduced graphene oxide wrapped alluaudite Na2+2xFe2-x(SO4)3 with high rate sodium ion storage properties
Publisher: Elsevier BV
Date: 07-2018
Methane storage in a template-synthesized carbon
Publisher: Elsevier BV
Date: 20-11-2008
Template synthesis of palladium nanotubes and their electrocatalytic properties
Publisher: Elsevier BV
Date: 2015
Silver-modified mesoporous TiO2 photocatalyst for water purification
Publisher: Elsevier BV
Date: 02-2011
DOI: 10.1016/J.WATRES.2010.12.019
Abstract: Mesoporous anatase (TiO(2)) was modified with silver (Ag) nanoparticles using a photoreduction method. Performance of the resulting TiO(2)-Ag nanocomposites for water purification was evaluated using degradation of Rhodamine B (RhB) and disinfection of Escherichia coli (E. coli) under ultraviolet (UV) irradiation. The composites with different Ag loadings were characterized using physical adsorption of nitrogen, X-ray diffraction, X-ray photoelectron spectroscopy and UV-Visible diffuse reflectance spectroscopic techniques. The results showed that metallic Ag nanoparticles were firmly immobilized on the TiO(2) surface, which improved electron-hole separation by forming the Schottky barrier at the TiO(2)-Ag interface. Photocatalytic degradation of RhB and inactivation of E. coli effectively occurred in an analogical trend. The deposited Ag slightly decreased adsorption of target pollutants, but greatly increased adsorption of molecular oxygen with the latter enhancing production of reactive oxygen species (ROSs) with concomitant increase in contaminant photodegradation. The optimal Ag loadings for RhB degradation and E. coli disinfection were 0.25 wt% and 2.0 wt%, respectively. The composite photocatalysts were stable and could be used repeatedly under UV irradiation.
Synthesis of nanostructured porous carbon
Publisher: World Scientific Pub Co Pte Lt
Date: 04-2005
DOI: 10.1142/S0219581X05003127
Abstract: In this paper, high-surface-area porous carbons with crumpled nanowalls were synthesized by carbonization of sucrose in the presence of zeolite template. The pore structures of the carbon materials were characterized using physical adsorption of nitrogen. Their surface chemistry was analyzed using X-ray photoelectron spectrometer (XPS). The microscopic structure features of the s les were imaged by field-emission scanning electron microscope (FESEM) and transmission electron microscopy (TEM). The nanostructure of synthesized porous carbon with a combination of micro-, meso- and macropores has been obtained.
Template synthesis and electrocatalytic properties of palladium hollow spheres
Publisher: Trans Tech Publications, Ltd.
Date: 06-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.709.11
Abstract: Palladium hollow spheres were synthesized at room temperature using cobalt nanoparticles (NPs) as sacrificing templates. Cobalt NPs can be prepared simply by solvothermal method. The hollow nature of s le Pd were observed from the TEM image and the SAED pattern indicates the polycrystalline nature of the s le. It was found that Pd hollow spheres showed high catalytic activity towards the electrooxidation of alcohols, especially ethanol with the current density up to 2047 mA•mg -1 . The formation mechanism and the structure-property relationship of Pd hollow spheres were discussed based on the experimental results.
Synthesis, characterization and catalytic performances of Ce-SBA-15 supported nickel catalysts for methane dry reforming to hydrogen and syngas
Publisher: Elsevier BV
Date: 2012
Synthesis and characterization of ferrous tungstate nanoparticles
Publisher: Trans Tech Publications, Ltd.
Date: 06-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.709.15
Abstract: Highly crystalline FeWO 4 nanoparticles (NPs) were synthesized via the hydrothermal synthesis method while amorphous FeWO 4 NPs were prepared by the room temperature precipitation method. It was found that a dissolution-recrystallization process appeared due to the Ostwald ripening when room temperature precipitates undergo the hydrothermal process. Photocatalytic performance toward the degradation of methylene blue showed that crystalline FeWO 4 NPs displayed a higher activity than amorphous s les, mainly ascribing to the substantial elimination of defects after crystallization because the defects promoted the recombination of electron-hole pairs.
Photocatalytic degradation of methylene blue by titanium dioxide: Experimental and modeling study
Publisher: American Chemical Society (ACS)
Date: 11-09-2014
DOI: 10.1021/IE502367X
Design of large-pore mesoporous materials for immobilization of penicillin G acylase biocatalyst
Publisher: Elsevier BV
Date: 09-2004
Sol-gel synthesis, microstructure and adsorption properties of hollow silica spheres
Publisher: Elsevier BV
Date: 06-2011
Growth of polyaniline on hollow carbon spheres for enhancing electrocapacitance
Publisher: American Chemical Society (ACS)
Date: 11-2010
DOI: 10.1021/JP1084026
Liquid-phase synthesis of SrCo0.9Nb0.1O3-δ cathode material for proton-conducting solid oxide fuel cells
Publisher: Elsevier BV
Date: 04-2018
A reduced graphene oxide–NiO composite electrode with a high and stable capacitance
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7SE00420F
Abstract: Thermal decomposition of Ni(acac) 2 leads to in situ formation of NiO sandwiched between expanded graphite oxide layers, and this material displays good electrocapacitive properties.
Bridging mesoporous carbon particles with carbon nanotubes
Publisher: Elsevier BV
Date: 2007
Mesoporous carbon spheres with controlled porosity for high-performance lithium-sulfur batteries
Publisher: Elsevier BV
Date: 07-2015
Improvement of the electrochemical performance of carbon-coated LiFePO 4 modified with reduced graphene oxide
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C2TA00106C
Incorporation of titanium into polymorph C for catalytic epoxidation of cyclohexene
Publisher: Elsevier BV
Date: 08-2009
Preparation and characterization of nanostructured Pd with high electrocatalytic activity
Publisher: Elsevier BV
Date: 02-2012
A composite electrode consisting of nickel hydroxide, carbon nanotubes, and reduced graphene oxide with an ultrahigh electrocapacitance
Publisher: Elsevier BV
Date: 2013
Solvothermal synthesis of MnFe2O4 colloidal nanocrystal assemblies and their magnetic and electrocatalytic properties
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4NJ01466A
Abstract: Submicrometer MnFe 2 O 4 colloidal nanocrystal assemblies (CNAs) have been synthesized controllably by using a solvothermal method through simply adjusting synthetic reagents.
Fabrication of TiO2 Binary Inverse Opals without Overlayers via the Sandwich-Vacuum Infiltration of Precursor
Publisher: American Chemical Society (ACS)
Date: 17-03-2011
DOI: 10.1021/LA200111J
Abstract: A sandwich-vacuum method was demonstrated for the fabrication of titania (TiO(2)) binary inverse opals with an open surface. In this method, a moisture-stable TiO(2) precursor was backfilled into the interstitial spaces of polystyrene binary colloidal crystals (PS bCCs), which served as a template. Removal of the template by calcination yielded TiO(2) binary inverse opals with a 3D-ordered macroporous (3DOM) structure. Optical reflectance spectra revealed the existence of a pseudostop band gap in the 3DOM TiO(2) s les. The position of the pseudostop band gap shifted to the low-wavelength region as the number ratio of small over large PS spheres was increased in the template. The sandwich-vacuum method proved to be simple and rapid for the fabrication of TiO(2) binary inverse opals without overlayers in large domains. The 3DOM TiO(2) materials were used as a photocatalyst for the degradation of benzoic acid. Results showed that in comparison to TiO(2) nanoparticles prepared under the same sintering conditions, the 3DOM TiO(2) materials displayed enhanced photocatalytic activity.
Ordered mesostructured carbon templated by SBA-16 silica
Publisher: Elsevier BV
Date: 09-2005
Synthesis of large-pore methylene-bridged periodic mesoporous organosilicas and its implications
Publisher: American Chemical Society (ACS)
Date: 21-01-2006
DOI: 10.1021/JP0561120
Abstract: In this article, we report the synthesis of methylene-bridged periodic mesoporous organosilicas (PMOs) of the SBA-15 type. The materials were characterized by SAXS, BET, NMR, FESEM, and TEM. It was found that the synthesis of methylene-bridged SBA-15 PMOs requires more rigorous conditions than that of SBA-15 PMOs bearing organic bridges other than methylene. A mild acidic environment, which slows down the hydrolysis and condensation rates of the precursor, with the assistance of a salt, which enhances precursor-template interaction, should be used to synthesize high-quality large-pore methylene-bridged PMOs. We attributed this to the fast hydrolysis and condensation rates and the rigid backbone of precursor 1,2-bis(triethoxysilyl)methylene. By examining and comparing the synthesis of three large-pore PMOs with different bridges, we concluded that the inductive, bridging, and conformation effects of the organic bridging group play an important role in the synthesis of large-pore PMO materials.
Inward-growing self-assembly of colloidal crystal films on horizontal substrates
Publisher: American Chemical Society (ACS)
Date: 11-02-2005
DOI: 10.1021/LA047337P
Abstract: Colloidal crystal films have been fabricated on solid substrates with a horizontal deposition method. Scanning electron microscope images showed that the colloidal crystal films exhibit ordered face-centered cubic structures in large domains. Optical measurements demonstrated the presence of photonic band gap along the crystallographic [111] direction. The fabrication method described in this paper allows one to rapidly fabricate colloidal crystal films of different thicknesses, which can be controlled by varying colloidal suspension concentration or volume. In addition, the method also works well for growing colloidal crystal films on a hydrophilic solid substrate with a rough surface. Furthermore, the fabrication of colloidal crystal heterostructures has been demonstrated. An inward-growing mechanism responsible for self-assembly of colloidal spheres on horizontal substrates has been proposed to interpret the observed experimental results.
Immobilizing catalysts on porous materials
Publisher: Elsevier BV
Date: 03-2006
Improvement on the Electrocapacitive Properties of NiO with Carbon
Publisher: The Chemical Society of Japan
Date: 05-02-2019
DOI: 10.1246/CL.180836
Improved Performance of Na3TiMn(PO4)3 Using a Non-stoichiometric Synthesis Strategy
Publisher: American Chemical Society (ACS)
Date: 11-05-2021
Undamaged depositing large-area ZnO quantum dots/RGO films on photoelectrodes for the construction of pure Z-scheme
Publisher: Elsevier BV
Date: 2019
On the Configuration of Supercapacitors for Maximizing Electrochemical Performance
Publisher: Wiley
Date: 30-04-2012
Abstract: Supercapacitors, which are attracting rapidly growing interest from both academia and industry, are important energy-storage devices for acquiring sustainable energy. Recent years have seen a number of significant breakthroughs in the research and development of supercapacitors. The emergence of innovative electrode materials (e.g., graphene) has clearly provided great opportunities for advancing the science in the field of electrochemical energy storage. Conversely, smart configurations of electrode materials and new designs of supercapacitor devices have, in many cases, boosted the electrochemical performance of the materials. We attempt to summarize recent research progress towards the design and configuration of electrode materials to maximize supercapacitor performance in terms of energy density, power density, and cycle stability. With a brief description of the structure, energy-storage mechanism, and electrode configuration of supercapacitor devices, the design and configuration of symmetric supercapacitors are discussed, followed by that of asymmetric and hybrid supercapacitors. Emphasis is placed on the rational design and configuration of supercapacitor electrodes to maximize the electrochemical performance of the device.
Gold nanoparticles supported on functionalized mesoporous silica for selective oxidation of cyclohexane
Publisher: Elsevier BV
Date: 05-2011
Honeycomb-Ordered Na3Ni1.5M0.5BiO6 (M = Ni, Cu, Mg, Zn) as High-Voltage Layered Cathodes for Sodium-Ion Batteries
Publisher: American Chemical Society (ACS)
Date: 03-11-2017
Lithium-storage Properties of Gallic Acid-Reduced Graphene Oxide and Silicon-Graphene Composites
Publisher: Elsevier BV
Date: 09-2016
Fabrication of binary colloidal crystals and non-close-packed structures by a sequential self-assembly method
Publisher: American Chemical Society (ACS)
Date: 09-12-2007
DOI: 10.1021/LA062601V
Abstract: Binary colloidal films of polystyrene (PS) spheres and silica spheres were fabricated with a sequential growth method using differently sized colloidal particles. In particular, we demonstrate the structures formed by a silica monolayer growing on top of a PS monolayer and a silica multilayer growing on top of a PS monolayer. By removal of the bottom PS layers, non-close-packed hexagonal, pentagonal, and square silica arrays were obtained at the original silica/PS interface. The possible formation mechanism of the non-close-packed structure was discussed, which may be used to explain how 3D colloidal crystals grow on patterned substrates.
Control of ordered structure and morphology of large-pore periodic mesoporous organosilicas by inorganic salt
Publisher: Elsevier BV
Date: 04-2006
Introduction of three-dimensional extrinsic defects into colloidal photonic crystals
Publisher: American Chemical Society (ACS)
Date: 19-05-2005
DOI: 10.1021/CM050381L
Surface patterning with carbon thin films by nanosphere lithography
Publisher: Elsevier BV
Date: 08-2005
Electrochemical catalysis and stability of tetraamido macrocyclic ligands iron immobilized on modified pyrolytic graphite electrode
Publisher: Elsevier BV
Date: 12-2010
A comparative study of V 2 O 5 modified with multi-walled carbon nanotubes and poly(3,4-ethylenedioxythiophene) for lithium-ion batteries
Publisher: Elsevier BV
Date: 09-2016
SOLID SULFONIC ACID CATALYSTS BASED ON POROUS CARBONS AND CARBON–SILICA COMPOSITES
Publisher: World Scientific Pub Co Pte Lt
Date: 12-2011
DOI: 10.1142/S0218625X11014606
Abstract: Mesoporous carbons prepared using a templating method under different carbonization temperatures are sulfonated with concentrated H 2 SO 4 . Without the moving of silica template carbon–silica composites were prepared, which can maintain the pore structure well during sulfonation reaction process. The resultant s les are characterized using nitrogen adsorption, transmission electron microscope, field-emission scanning electron microscope, X-ray diffraction, X-ray photoelectron spectroscopy, and elemental analysis techniques. The catalytic performances of the sulfonated carbons and composites are evaluated by esterification reaction of methanol with acetic acid. The results show that a low-temperature carbonization process is favorable for improving the reaction conversion of acetic acid. In addition, the sulfonated carbon–silica composites show a higher acetic acid conversion than the sulfonated mesoporous carbons.
Mesoporous carbon spheres with tunable porosity prepared by a template-free method for advanced lithium-sulfur batteries
Publisher: Elsevier BV
Date: 2018
Photodegradation of benzoic acid over metal-doped TiO2
Publisher: American Chemical Society (ACS)
Date: 04-04-2006
DOI: 10.1021/IE051098Z
Modeling of the adsorption breakthrough behaviors of Pb2+ in a fixed bed of ETS-10 adsorbent
Publisher: Elsevier BV
Date: 09-2008
DOI: 10.1016/J.JCIS.2008.04.067
Abstract: On the basis of experimental breakthrough curves of lead ion adsorption on ETS-10 particles in a fixed-bed column, we simulated the breakthrough curves using the two-phase homogeneous diffusion model (TPHDM). Three important model parameters, namely the external mass-transfer coefficient (k(f)), effective intercrystal diffusivity (D(e)), and axial dispersion coefficient (D(L)), were optimally found to be 8.33x10(-5) m/s, 2.57x10(-10) m(2)/s, and 1.93x10(-10) m(2)/s, respectively. A good agreement was observed between the numerical simulation and the experimental results. Sensitivity analysis revealed that the value of D(e) dictates the model performance while the magnitude of k(f) primarily affects the initial breakthrough point of the breakthrough curves.
lSynthesis of monodispersed colloidal particles via a hydrothermally promoted double hydrolysis approach
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6CE02225A
Preparation of PS@SiO2, PS@TiO2,PS@TiO 2/SiO2 core-shell composites by a spray drying process and their hollow spheres after removing PS cores by calcinations
Publisher: Trans Tech Publications, Ltd.
Date: 02-2011
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.194-196.389
Abstract: Polystyrene (PS) spheres encapsulated core-shell composites of SiO 2 or TiO 2 nanoparticles were prepared by the spray drying technique and hollow spheres of SiO 2 or TiO 2 nanoparticles were then derived by removing the PS cores with calcinations. The PS spheres were dispersed into the SiO 2 or TiO 2 colloids, forming a suspension and then the suspensions were sprayed to form micrometer-sized droplets, as the droplets rush through the drying chamber, the PS spheres were encapsulated into the core of SiO 2 or TiO 2 particles due to the high temperatures and the instant evaporation, obtaining PS@SiO 2 , PS@TiO 2 or PS@SiO 2 /TiO 2 core-shell composites. After removing the PS core by calcination at 550°C, SiO 2 or TiO 2 hollow spheres were then derived. The influence of drying temperature, the concentration of the SiO 2 or TiO 2 particles and the ratio of PS sphere to the particles on the structures and specific surface area of the hollow spheres were studied with scanning electron microscopy (SEM) and nitrogen adsorption-desorption measurements.
Optically switchable photonic crystals based on inverse opals partially infiltrated by photoresponsive liquid crystals
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2JM16050A
A facile and green preparation of durian shell-derived carbon electrodes for electrochemical double-layer capacitors
Publisher: Elsevier BV
Date: 12-2012
Synthesis of graphitic ordered macroporous carbon with a three-dimensional interconnected pore structure for electrochemical applications
Publisher: American Chemical Society (ACS)
Date: 12-10-2005
DOI: 10.1021/JP0541967
Abstract: In this study, ordered macroporous carbon with a three-dimensional (3D) interconnected pore structure and a graphitic pore wall was prepared by chemical vapor deposition (CVD) of benzene using inverse silica opal as the template. Field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectrometry, nitrogen adsorption, and thermogravimetric analysis techniques were used to characterize the carbon s les. The electrochemical properties of the carbon materials as a carbon-based anode for lithium-ion batteries and as a Pt catalyst support for room-temperature methanol electrochemical oxidation were examined. It was observed that the CVD method is a simple route to fabrication of desired carbon nanostructures, affording a carbon with graphitic pore walls and uniform pores. The graphitic nature of the carbon enhances the rate performance and cyclability in lithium-ion batteries. The specific capacity was found to be further improved when SnO(2) nanoparticles were supported on the carbon. The specific activity of Pt catalyst supported on the carbon materials for room-temperature methanol electrochemical oxidation was observed to be higher than that of a commercial Pt catalyst (E-TEK).
Synthesis and capacitive properties of carbonaceous sphere@MnO2 rattle-type hollow structures
Publisher: Springer Science and Business Media LLC
Date: 08-2010
Abstract: Carbonaceous sphere@MnO 2 rattle-type hollow spheres were synthesized under mild experimental conditions. The as-prepared hollow structures were characterized using scanning electron microscope, transmission electron microscope, x-ray diffraction, x-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis, and nitrogen adsorption techniques. The characterization data showed the formation of rattle-type hollow structures with a mesoporous MnO 2 shell and a carbonaceous sphere core. The composition and shell thickness of the hollow spheres can be controlled experimentally. The capacitive performance of the hollow structures was evaluated by using both cycle voltammetry and charge–discharge methods. The results demonstrated a specific capacitance as high as 184 F/g at a current density of 125 mA/g. The good electrocapacitive performance resulted from the mesoporous structure and high surface area of the MnO 2 -based hollow spheres.
Template synthesis of microporous carbon for direct methanol fuel cell application
Publisher: Elsevier BV
Date: 09-2005
Mesoporous carbon-coated LiFePO4 nanocrystals co-modified with graphene and Mg2+ doping as superior cathode materials for lithium ion batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3NR04611G
Abstract: In this work, mesoporous carbon-coated LiFePO4 nanocrystals further co-modified with graphene and Mg(2+) doping (G/LFMP) were synthesized by a modified rheological phase method to improve the speed of lithium storage as well as cycling stability. The mesoporous structure of LiFePO4 nanocrystals was designed and realized by introducing the bead milling technique, which assisted in forming sucrose-pyrolytic carbon nanoparticles as the template for generating mesopores. For comparison purposes, s les modified only with graphene (G/LFP) or Mg(2+) doping (LFMP) as well as pure LiFePO4 (LFP) were also prepared and investigated. Microscopic observation and nitrogen sorption analysis have revealed the mesoporous morphologies of the as-prepared composites. X-ray diffraction (XRD) and Rietveld refinement data demonstrated that the Mg-doped LiFePO4 is a single olivine-type phase and well crystallized with shortened Fe-O and P-O bonds and a lengthened Li-O bond, resulting in an enhanced Li(+) diffusion velocity. Electrochemical properties have also been investigated after assembling coin cells with the as-prepared composites as the cathode active materials. Remarkably, the G/LFMP composite has exhibited the best electrochemical properties, including fast lithium storage performance and excellent cycle stability. That is because the modification of graphene provided active sites for nuclei, restricted the in situ crystallite growth, increased the electronic conductivity and reduced the interface reaction current density, while, Mg(2+) doping improved the intrinsically electronic and ionic transfer properties of LFP crystals. Moreover, in the G/LFMP composite, the graphene component plays the role of "cushion" as it could quickly realize capacity response, buffering the impact to LFMP under the conditions of high-rate charging or discharging, which results in a pre-eminent rate capability and cycling stability.
Hybrid brominated sulfonated poly(2,6-diphenyl-1,4-phenylene oxide) and SiO2 nanocomposite membranes for CO2/N2 separation
Publisher: Elsevier BV
Date: 12-2012
The role of electrode wettability in electrochemical reduction of carbon dioxide
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1TA03636J
Abstract: This review provides an in-depth analysis of essential role of electrode wettability in improving CO 2 electrochemical reduction.
2D/3D Assemblies of Amine-Functionalized Graphene Silica (Templated) Aerogel for Enhanced CO2 Sorption
Publisher: American Chemical Society (ACS)
Date: 30-07-2019
Abstract: This work investigates the one-pot facile synthesis of novel 2D/3D assemblies containing graphene silica (templated) aerogel sorbents for CO
Sandwiched ruthenium/carbon nanostructures for highly active heterogeneous hydrogenation
Publisher: Wiley
Date: 29-06-2007
From planar defect in opal to planar defect in inverse opal
Publisher: American Chemical Society (ACS)
Date: 09-03-2006
DOI: 10.1021/LA053470L
Abstract: We demonstrate a facile method of fabricating opal and inverse opal structures with a planar defect. A single layer of silica beads was embedded into polystyrene opals by combining an inward-growing self-assembly method with spin-coating technique. After the infiltration of silica followed by the removal of the polystyrene beads by calcination, an inverted structure was obtained. The silica beads were connected together by the infiltrated silica, thus a solid silica phase with the silica beads as a planar defect embedded in the inverse silica opal was obtained. The thickness of the defect layer can be adjusted by changing the size of the silica beads. Scanning electron microscope images showed the good quality of the crystal and the uniformity of the defect layer. Optical transmission spectra indicated the existence of a defect state induced by the defect layer in both the opal and inverse opal structures. High-cost techniques such as lithography and chemical vapor deposition are not involved in the fabrication of inverse opals with planar defects.
Immobilization of penicillin G acylase on oxirane-modified mesoporous silicas
Publisher: American Chemical Society (ACS)
Date: 07-01-2009
DOI: 10.1021/LA803480C
Abstract: Experimental adsorption kinetics and equilibrium results of penicillin G acylase (PGA, from Escherichia coli, EC 3.5.1.11) on mesoporous silicas with pore sizes ranging from 5.6 to 33.2 nm showed that s les with pore sizes between 11.0 and 13.2 nm exhibited the best performance in immobilizing PGA under mild experimental conditions. A mesoporous silica s le with an optimum pore size of about 11.5 nm was then modified with different amounts of glycidoxypropyltrimethoxysilane to yield oxirane-functionalized silicas of different densities of surface oxirane groups. Under very mild incubation conditions, a partially oxirane-functionalized silica s le was found to be more efficient in immobilizing PGA than a fully oxirane-functionalized s le and a commercial polymer carrier (i.e., Eupergit C). With the partially oxirane-functionalized mesoporous silica s le as a carrier, a PGA loading of 110 mg/g (dry support) and an enzymatic activity of as high as 3477 unit/g (dry support) were achieved within 24 h of incubation. The residual surface silanol groups on the partially oxirane-functionalized silica were observed to play a pivotal role in facilitating the covalent binding of PGA with the oxirane groups at low salt concentrations.
Three- dimensional nitrogen- doped holey graphene and transition metal oxide composites for sodium- ion batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8TA09188A
Abstract: The unique macroporous architecture in combination with the presence of nanopores in graphene sheets facilitate ion transport during charge/discharge.
Conducting Polymers Directly Coated on Reduced Graphene Oxide Sheets as High-Performance Supercapacitor Electrodes
Publisher: American Chemical Society (ACS)
Date: 22-02-2012
DOI: 10.1021/JP211474E
Sulfonated polypyrrole nanospheres as a solid acid catalyst
Publisher: Royal Society of Chemistry (RSC)
Date: 2008
DOI: 10.1039/B804743J
Quantifying the hydration structure of sodium and potassium ions: taking additional steps on Jacob's Ladder
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9CP06161D
Abstract: The ability to reproduce the experimental structure of water around the sodium and potassium ions is a key test of the quality of interaction potentials due to the central importance of these ions in a wide range of important phenomena.
Sodium-Ion Storage Properties of Thermally Stable Anatase
Publisher: American Association for the Advancement of Science (AAAS)
Date: 2022
Abstract: Anatase titanium dioxide (TiO 2 ) is a potential anode material for sodium-ion batteries (NIBs). However, the low electronic conductivity and sluggish ion diffusion kinetics at high rate h er its practical applications. Herein, we demonstrate a sol-gel approach to the synthesis of thermally stable anatase nanoparticles with a carbon shell as anode materials for NIBs. A s le calcined at 750 °C (designated as H-750TiO 2 @C) exhibits high-rate capability and excellent stability against cycling with no capacity loss after 2000 cycles at 1 A g -1 . In situ X-ray diffraction and Raman spectroscopy characterization results reveal a nearly zero-strain characteristic of the anatase phase during charge/discharge processes. In situ transmission electron microscopy, ex situ X-ray photoelectron spectroscopy, and scanning electron microscope characterization results of s les collected at different charged and discharged states suggest that the anatase phase undergoes an irreversible sodiation-activation during the initial discharge process to form a sodiated-TiO 2 phase. A full cell assembled with H-750TiO 2 @C as the anode and Na 3 V 2 (PO 4 ) 3 as the cathode delivers an energy density of 220 Wh kg -1 , demonstrating H-750TiO 2 @C is a potential anode material for NIBs.
Surface Potential Explained: A Surfactant Adsorption Model Incorporating Realistic Layer Thickness
Publisher: American Chemical Society (ACS)
Date: 20-02-2020
Imitation of variable structural color in paracheirodon innesi using colloidal crystal films
Publisher: The Optical Society
Date: 17-06-2011
DOI: 10.1364/OE.19.012799
One-step synthesis of metal@titania core-shell materials for visible-light photocatalysis and catalytic reduction reaction
Publisher: Wiley
Date: 18-09-2014
Abstract: Metal@TiO2 composites with a core-shell structure possess multifunctional properties. The demonstrated protocols for synthesizing such materials involve multiple steps, requiring precise control over the particle uniformity of the core and shell thickness, as well as complex surface modification. A simple approach to synthesizing metal@TiO2 hybrid nanostructures remains a great challenge. Herein, we report on a one-step method for the preparation of metal@TiO2 core-shell nanospheres, which exhibited excellent performance in photocatalytic degradation of recalcitrant organic pollutants under visible light irradiation, and in catalytic reduction of nitrophenol in water. The simple method described here represents a sustainable approach to preparing core-shell materials at low cost, involving fewer chemicals, and requiring less energy, which will make a significant contribution toward large-scale synthesis of high-performance hybrid materials for photocatalytic applications.
Methanol oxidation activities of Pt nanoparticles supported on microporous carbon with and without a graphitic shell
Publisher: Elsevier BV
Date: 08-2006
Manganese promoting effects on the Co-Ce-Zr-Ox nano catalysts for methane dry reforming with carbon dioxide to hydrogen and carbon monoxide
Publisher: Elsevier BV
Date: 06-2011
Low-frequency eigenvibrations of hollow carbon microspheres
Publisher: AIP Publishing
Date: 25-06-2007
DOI: 10.1063/1.2753117
Abstract: Monodisperse hollow carbon microspheres have been fabricated using silica spheres as templates via a three-step chemical vapor deposition method. The vibrational eigenmodes of these hollow carbon microspheres have been measured by Brillouin light scattering. The frequencies of the eigenvibrations of a free surface hollow carbon sphere are also calculated within the framework of the elasticity theory. A comparison of the theoretical and measured frequencies shows that the observed Brillouin peaks are due to the spheroidal modes of the hollow spheres.
Characterization of the structural and surface properties of chemically modified MCM-41 material
Publisher: Elsevier BV
Date: 12-2000
Replicating novel carbon nanostructures with 3D macroporous silica template
Publisher: Royal Society of Chemistry (RSC)
Date: 2005
DOI: 10.1039/B503691G
Easy approach to synthesize N/P/K co-doped porous carbon microfibers from cane molasses as a high performance supercapacitor electrode material
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4RA05243A
Abstract: For the first time, porous carbon microfibers co-doped with N/P/K were synthesized from cane molasses by combination of electrospinning and carbonization techniques and its electrochemical application to electrode materials for supercapacitors was investigated.
A comparative study of electrocapacitive properties of manganese dioxide clusters dispersed on different carbons
Publisher: Elsevier BV
Date: 02-2013
Electrochemical properties of colloidal nanocrystal assemblies of manganese ferrite as the electrode materials for supercapacitors
Publisher: Springer Science and Business Media LLC
Date: 18-01-2017
Porous photocatalysts for advanced water purifications
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/B925523K
Drilling nanoholes in colloidal spheres by selective etching
Publisher: Royal Society of Chemistry (RSC)
Date: 2006
DOI: 10.1039/B604463H
Exploring the effect of interlayer distance of expanded graphite for sodium ion storage using first principles calculations
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0CP06134D
Abstract: Expanded graphite with an interlayer distance of 4.4 Å enables sodium ion intercalation and thermodynamically most stable sodium-graphite intercalation compound can be formed when the interlayer distance reaches 6.0 Å.
A Two-Step Sol–Gel Method for Synthesis of Nanoporous TiO<SUB>2</SUB>
Publisher: American Scientific Publishers
Date: 03-2004
DOI: 10.1166/JNN.2004.037
Abstract: This article reports a study of the effects of synthesis parameters on the preparation and formation of mesoporous titania nanopowders by employing a two-step sol-gel method. These materials displayed crystalline domains characteristic of anatase. The first step of the process involved the hydrolysis of titanium isopropoxide in a basic aqueous solution mediated by neutral surfactant. The solid product obtained from step 1 was then treated in an acidified ethanol solution containing the same titanium precursor to thicken the pore walls. Low pH and higher loading of the Ti precursor in step 2 produced better mesoporosity and crystallinity of titanium dioxide polymorphs. The resultant powder exhibited a high surface area (73.8 m2/g) and large pore volume (0.17 cm3/g) with uniform mesopores. These materials are envisaged to be used as precursors for mesoporous titania films as a wide band gap semiconductor in dye-sensitized nanocrystalline TiO2 solar cells.
A reinforced study on the synthesis of microporous titanosilicate ETS-10
Publisher: Elsevier BV
Date: 12-2004
Permeation time lag in polymeric hollow fiber membranes
Publisher: Elsevier BV
Date: 10-2006
Preparation and characterization of carbon nanospheres as anode materials in lithium-ion secondary batteries
Publisher: American Chemical Society (ACS)
Date: 03-2008
DOI: 10.1021/IE071337D
Synthesis of TiO2 with controllable ratio of anatase to rutile
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4TA01144A
The electrocapacitive properties of graphene oxide reduced by urea
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C1EE02478G
Effect of the agglomeration of TiO2 nanoparticles on their photocatalytic performance in the aqueous phase
Publisher: Elsevier BV
Date: 08-2010
DOI: 10.1016/J.JCIS.2010.04.045
Abstract: TiO(2) nanoparticles have been widely explored as photocatalysts in the degradation of organic matters present in water. However, spontaneous agglomeration of TiO(2) nanoparticles in a suspension is a crucial issue that must be addressed before the photocatalyst can be used for water treatment. In the present work, the nature of the agglomeration of TiO(2) nanoparticles in aqueous suspension was investigated. Two approaches to minimize the agglomeration of colloidal TiO(2) particles were investigated. A careful control over the pH of the system was found to be an effective method for stabilizing colloidal TiO(2) particles and to significantly enhance the adsorption of orange II. As a result, the overall photocatalytic degradation rate was greatly accelerated. In addition to pH control, modification of TiO(2) particles using polyelectrolyte poly allylamine hydrochloride (PAH) was observed to be an effective approach for preventing colloidal TiO(2) particles from agglomeration.
Enhancing low-temperature electrochemical kinetics and high-temperature cycling stability by decreasing ionic packing factor
Publisher: Elsevier BV
Date: 09-2023
Cover Feature: Potassium‐Ion Storage in Cellulose‐Derived Hard Carbon: The Role of Functional Groups (Batteries & Supercaps 9/2020)
Publisher: Wiley
Date: 14-08-2020
Synthesis and characterization of microporous titanosilicate ETS-10 with different titanium precursors
Publisher: Springer Science and Business Media LLC
Date: 08-2006
Au nanoparticles dispersed on functionalized mesoporous silica for selective oxidation of cyclohexane
Publisher: Elsevier BV
Date: 12-2010
Manganese oxide-carbon composite as supercapacitor electrode materials
Publisher: Elsevier BV
Date: 07-2009
Prediction of multilayer adsorption and capillary condensation phenomena in cylindrical mesopores
Publisher: Elsevier BV
Date: 11-2003
Pyrolyzed graphene oxide/resorcinol-formaldehyde resin composites as high-performance supercapacitor electrodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0JM02850A
Boosting the cycling stability of transition metal compounds-based supercapacitors
Publisher: Elsevier BV
Date: 2019
The electrocapacitive properties of polyaniline/VXC-72 composite electrodes
Publisher: Elsevier BV
Date: 03-2018
Facile synthesis of N-doped carbon layer encapsulated Fe2N as an efficient catalyst for oxygen reduction reaction
Publisher: Elsevier BV
Date: 02-2018
Stable α-MoO3 Electrode with a Widened Electrochemical Potential Window for Aqueous Electrochemical Capacitors
Publisher: American Chemical Society (ACS)
Date: 24-03-2021
Competitive adsorption of Pb2+, Cu2+, and Cd 2+ ions on microporous titanosilicate ETS-10
Publisher: Elsevier BV
Date: 07-2005
DOI: 10.1016/J.JCIS.2005.01.073
Abstract: In the present study, the competitive adsorption characteristics of binary and ternary heavy metal ions Pb2+, Cu2+, and Cd2+ on microporous titanosilicate ETS-10 were investigated in batch systems. Pure microporous titanosilicate ETS-10 was synthesized with P25 as the Ti source and characterized by the techniques of X-ray diffraction (XRD), field emission-scanning electron microscope (FESEM), nitrogen adsorption, and zeta-potential. Equilibrium and kinetic adsorption data showed that ETS-10 displays a high selectivity toward one metal in a two-component or a three-component system with an affinity order of Pb2+ > Cd2+ > Cu2+. The equilibrium behaviors of heavy metals species with stronger affinity toward ETS-10 can be described by the Langmuir equation while the adsorption kinetics of the metals can be well fitted to a pseudo-second-order (PSO) model.
Preparation, characterization and antibacterial properties of silver-modified graphene oxide
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0JM02806A
TiO2 hollow spheres obtained under autogenic pressure at elevated temperature
Publisher: Trans Tech Publications, Ltd.
Date: 08-2009
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.79-82.525
Abstract: Carbon/TiO2 composites were prepared via the reaction under Autogenic Pressure at Elevated Temperature (RAPET) using alkoxides as precursor, and then porous TiO2 hollow spheres were derived after removing the carbon ingredient by calcination at 600°C. The influence of surfactant additives, including the addition ratio and the nature of the surfactants, on the morphology and the structures of the Carbon/TiO2 composites and the derived TiO2 were also studied with scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-Vis diffuse reflectance spectrophotoscopy (DRS) and nitrogen adsorption-desorption measurements. The results revealed that the morphology of the products turned to spherical and then fusiform and the structures turned from hollow to solid with the increasing of surfactant additive. The BET surface area of the hollow TiO2 was modified from 12m2/g to 57m2/g after calcinations. The XRD investigation indicates that the phases of the TiO2 in both the carbon/TiO2 composites and the derived TiO2 hollow spheres are anatase.
New Anode Material for Lithium-Ion Batteries: Aluminum Niobate (AlNb11O29)
Publisher: American Chemical Society (ACS)
Date: 04-02-2019
Abstract: This paper describes the syntheses and electrochemical properties of a new niobate compound, aluminum niobate (AlNb
Template synthesis of mesoporous carbon microfibers as a catalyst support for methanol electrooxidation
Publisher: American Chemical Society (ACS)
Date: 14-11-2007
DOI: 10.1021/IE070784Q
Atomistic insight into adsorption, mobility, and vibration of water in ion- exchanged zeolite-like metal-organic frameworks
Publisher: American Chemical Society (ACS)
Date: 26-08-2009
DOI: 10.1021/NN900605U
Abstract: The adsorption, mobility, and vibration of water in ion-exchanged rho-zeolite-like metal-organic frameworks (ZMOFs) are investigated using atomistic simulations. Because of the high affinity for the ionic framework and nonframework ions, water is strongly adsorbed in rho-ZMOFs with a three-step adsorption mechanism. At low pressures, water is preferentially adsorbed onto Na(+) ions, particularly at site II with increasing pressure, adsorption occurs near the framework and finally in the large cage. Upon water adsorption, Na(+) ions are observed to redistribute from site I to site II and gradually hydrated with increasing pressure. In Li-, Na-, and Cs-exchanged rho-ZMOFs, the adsorption capacity and isosteric heat decrease with increasing ionic radius attributed to the reduced electrostatic interaction and free volume. The mobility of water in Na-rho-ZMOF increases at low pressures but decreases upon approaching saturation. With sufficient amount of water present, the mobility of Na(+) ions is promoted. The vibrational spectra of water in Na-rho-ZMOF exhibit distinct bands for librational motion, bending, and stretching. The librational motion has a frequency higher than bulk water due to confinement. With increasing loading and hence stronger coordinative attraction, the bending frequency shows a blue shift. Symmetric and asymmetric modes are observed in the stretching as a consequence of the strong water-ion interaction. This study provides a fundamental microscopic insight into the static and dynamic properties of water in charged ZMOFs and reveals the subtle interplay between water and nonframework ions.
Carbon dioxide capture by dendrimer-modified silica nanoparticles
Publisher: Hindawi Limited
Date: 08-2011
Pyromellitic dianhydride-based polyimide anodes for sodium-ion batteries
Publisher: Elsevier BV
Date: 03-2018
Room-temperature synthesis of hydrothermally stable aluminum-rich periodic mesoporous organosilicas with wormlike pore channels
Publisher: Elsevier BV
Date: 10-2005
Evaporation-controlled nanocasting approach to a precision replication at nanometer scale
Publisher: Elsevier BV
Date: 08-2007
Formic acid-assisted synthesis of palladium nanocrystals and their electrocatalytic properties
Publisher: American Chemical Society (ACS)
Date: 03-01-2014
DOI: 10.1021/LA404268J
Abstract: Palladium (Pd) nanocrystals have been synthesized by using formic acid as the reducing agent at room temperature. When the concentration of formic acid was increased continuously, the size of Pd nanocrystals first decreased to a minimum and then increased slightly again. The products have been investigated by a series of techniques, including X-ray diffraction, high-resolution transmission electron microscopy (HRTEM), UV-vis absorption, and electrochemical measurements. The formation of Pd nanocrystals is proposed to be closely related to the dynamical imbalance of the growth and dissolution rate of Pd nanocrystals associated with the adsorption of formate ions onto the surface of the intermediates. It is found that small Pd nanocrystals showed blue-shifted adsorption peaks compared with large ones. Pd nanocrystals with the smallest size display the highest electrocatalytic activity for the electrooxidation of formic acid and ethanol on the basis of cyclic voltammetry and chrono erometric data. It is suggested that both the electrochemical active surface area and the small size effect are the key roles in determining the electrocatalytic performances of Pd nanocrystals. A "dissolution-deposition-aggregation" process is proposed to explain the variation of the electrocatalytic activity during the electrocatalysis according to the HRTEM characterization.
Carrageenan Asissted Synthesis of Palladium Nanoflowers and Their Electrocatalytic Activity toward Ethanol
Publisher: American Chemical Society (ACS)
Date: 12-12-2018
A high-energy-density supercapacitor with graphene-CMK-5 as the electrode and ionic liquid as the electrolyte
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C2TA01040B
A new approach to preparing porous carbons with controllable pore structure and morphology
Publisher: Royal Society of Chemistry (RSC)
Date: 16-10-2014
DOI: 10.1039/C4CC06954D
Abstract: A new approach to preparing porous carbons with desirable pore structure and morphology is demonstrated by using an appropriate pair of polycarboxylic acid/anhydride and diamine in the presence of a metal salt without a sacrificial template.
Aluminophosphate-based mesoporous molecular sieves: Synthesis and characterization of TAPOs
Publisher: Elsevier BV
Date: 04-2001
Method for preparing highly dispersed Pt catalysts on mesoporous carbon support
Publisher: Springer Science and Business Media LLC
Date: 10-05-2007
Sustainable Preparation of Copper Particles Decorated Carbon Microspheres and Studies on Their Bactericidal Activity and Catalytic Properties
Publisher: American Chemical Society (ACS)
Date: 25-09-2015
Functionalization of chemically derived graphene for improving its electrocapacitive energy storage properties
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6EE00158K
Abstract: This review summarizes the latest developments in the functionalization of chemically derived graphene for improving its electrocapacitive performance.
Spray-Drying-Induced Assembly of Skeleton-Structured SnO2/Graphene Composite Spheres as Superior Anode Materials for High Performance Lithium-Ion Batteries
Publisher: American Chemical Society (ACS)
Date: 08-01-2018
Abstract: Three-dimensional skeleton-structured assemblies of graphene sheets decorated with SnO
Enhancement of Electrochemical Performance of Macroporous Carbon by Surface Coating of Polyaniline
Publisher: American Chemical Society (ACS)
Date: 24-11-2009
DOI: 10.1021/CM902685M
Nitrogen-doped hierarchically porous carbon derived from cherry stone as a catalyst support for purification of terephthalic acid
Publisher: Elsevier BV
Date: 07-2018
Fabrication of high-performance proton-conducting electrolytes from microwave prepared ultrafine powders for solid oxide fuel cells
Publisher: Elsevier BV
Date: 02-2019
Molecular understanding for the adsorption of water and alcohols in hydrophilic and hydrophobic zeolitic metal-organic frameworks
Publisher: American Chemical Society (ACS)
Date: 10-06-2010
DOI: 10.1021/JP1033273
Incorporation of hybrid elements into microporous titanosilicate ETS-10: An approach to improving its adsorption properties toward Pb2+
Publisher: Elsevier BV
Date: 04-2007
Assembly of Ni-Al layered double hydroxide and graphene electrodes for supercapacitors
Publisher: Elsevier BV
Date: 07-2014
Synthesis of self-organized polycrystalline F-doped TiO2 hollow microspheres and their photocatalytic activity under visible light
Publisher: American Chemical Society (ACS)
Date: 18-03-2008
DOI: 10.1021/JP709615X
Synthesis of carbon-modified cobalt disphosphide as anode for sodium-ion storage
Publisher: Elsevier BV
Date: 08-2022
Vapor-phase silanization of oxidized porous silicon for stabilizing composition and photoluminescence
Publisher: AIP Publishing
Date: 06-2009
DOI: 10.1063/1.3133209
Abstract: A vapor-phase deposition approach to the silanization modification of the oxidized porous silicon (PSi) surface using (CH3O)3Si(CH2)3NH2 has been exploited. Standard clean (SC)-1 (NH3H2O/H2O2/H2O, 1:1:5,v/v) and SC-2 [HCl/H2O2/H2O (1:1:6,v/v)] solutions are utilized for the first time to obtain oxidized PSi and have been proved to be a very efficient combination for creating Si–OH species on the PSi surface. After the modification, an amine group terminated surface was successfully created as demonstrated by the contact angle with water, the x-ray photoelectron spectroscopy, and the Fourier transform infrared (FTIR) spectra. The influences of the surface derivatives on the composition stability of the PSi layer and on its photoluminescence properties were investigated by means of FTIR spectra, photoluminescence spectra, and time-resolved photoluminescence measurements.
Effects of surface properties and solvent pH values on the adsorption/desorption abilities of mesoporous SBA-15 to methylene blue molecules
Publisher: Trans Tech Publications, Ltd.
Date: 14-05-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.518-523.352
Abstract: Methylene blue (MB) was used as model molecule to investigate the effects of surface properties and solvent pH values on the adsorption and desorption (or release) behaviors of mesoporous SBA-15 materials. It was found that the treatment of SBA-15 with a pH 7.8 aqueous solution can enhance the adsorption rate and capacity in comparison with the pristine SBA-15. The effect of pH values on MB releasing from the weak base treated SBA-15 and the pristine one have been studied and been compared in pH values range from 0.5 to 7.0. Both of them showed a maximum releasing rate at about pH 2 and all of the treated SBA-15 s les showed a higher releasing quantity than the pristine ones. The influence mechanisms of base treatment on the adsorption ability and that of pH values on the releasing properties of SBA-15 s les have been analyzed and been discussed based on the composition, the morphology, the surface area and pore size distribution and adsorption/desorption measurements.
Three-dimensional nitrogen-doped porous carbon anchored CeO2 quantum dots as an efficient catalyst for formaldehyde oxidation
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA00076J
Abstract: A unique 3D structured composite composed of CeO 2 quantum dots and CN is successfully constructed by a novel synthesis procedure to serve as an efficient HCHO oxidation catalyst.
Layered graphene oxide nanostructures with sandwiched conducting polymers as supercapacitor electrodes
Publisher: American Chemical Society (ACS)
Date: 20-10-2010
DOI: 10.1021/LA103413S
Abstract: We demonstrate a general approach to the preparation of layered graphene oxide structures with sandwiched conducting polymers of different morphologies. The approach is conceptualized on the basis of the electrostatic interactions between negatively charged graphene oxide sheets and positively charged surfactant micelles. A graphene oxide-polypyrrole composite prepared from this approach exhibited an excellent electrocapacitive performance with a high specific capacitance over 500 F g(-1). Good rate performance and cycle ability were realized by the composite electrode. The simple method described here opens up a generalized route to making a wide range of graphene oxide-based and graphene-based composite materials for applications beyond electrochemical energy storage.
Preparation of polymer-supported hydrated ferric oxide based on Donnan membrane effect and its application for arsenic removal
Publisher: Springer Science and Business Media LLC
Date: 04-2008
Fabrication of colloidal crystal heterostructures using a horizontal deposition method
Publisher: Elsevier BV
Date: 02-2006
Rational design of graphitic carbon based nanostructures for advanced electrocatalysis
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6TA01657J
Abstract: The recent development of carbon-based catalysts for advanced electrocatalysis is summarized and discussed.
Control over the morphology and phase of MnOx formed in the modified Hummers' method and impact on the electrocapacitive properties of MnOx-graphite oxide composite electrodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA05577J
Abstract: The controllable morphology and crystalline phase of manganese oxides formed in the Hummer's method have an impact on the electrocapacitive performance of the resulting composite materials.
Sulfonic-acid-functionalized porous benzene phenol polymer and carbon for catalytic esterification of methanol with acetic acid
Publisher: Elsevier BV
Date: 05-2011
Rigid three-dimensional Ni3S4 nanosheet frames: Controlled synthesis and their enhanced electrochemical performance
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4RA15607B
Abstract: Rigid three-dimensional (3D) Ni 3 S 4 nanosheet frames assembled from ultrathin nanosheets are synthesized via a facile solvothermal method.
Highly-conductive proton-conducting electrolyte membranes with a low sintering temperature for solid oxide fuel cells
Publisher: Elsevier BV
Date: 07-2018
A reverse cation-anion double hydrolysis approach to the synthesis of mesoporous γ-Al2O3 with a bimodal pore size distribution
Publisher: Elsevier BV
Date: 02-2009
Block copolymer-templated synthesis of highly organized mesoporous TiO2-based films and their photoelectrochemical applications
Publisher: Elsevier BV
Date: 06-2011
Fabrication of crack-free colloidal crystals using a modified vertical deposition method
Publisher: American Chemical Society (ACS)
Date: 27-05-2007
DOI: 10.1021/JP071233G
Pt nanoparticles supported on sandwiched Ru/carbon nanocomposite as a bimetallic catalyst for methanol electrooxidation
Publisher: American Chemical Society (ACS)
Date: 11-09-2008
DOI: 10.1021/JP8048229
Synthesis of mesoporous anatase TiO2 with a combined template method and photocatalysis
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C0CE00228C
Ruthenium nanoparticles embedded in mesoporous carbon microfibers: Preparation, characterization and catalytic properties in the hydrogenation of D-glucose
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0CP01276A
Abstract: Ruthenium (Ru) nanoparticles dispersed in mesoporous carbon microfibers were prepared using alumina microfibers as the templates via a chemical vapour deposition (CVD) route. Characterized data showed that Ru nanoparticles were embedded in the mesoporous carbon matrix. The s les were found to possess a specific surface area as high as 750 m(2) g(-1), pore sizes in the range of 3-5 nm, lengths in the range of 5-10 μm, and a width of about 0.5 μm. The Ru catalysts displayed a remarkably high catalytic activity and an excellent stability in the hydrogenation of D-glucose. The observed good catalyst performance is attributed to the carbon microfiber morphology, unblocked mesoporous structure, and the hydrogen spillover effect induced by the unique surface contact between the Ru nanoparticles and the carbon. In addition, the incorporation of nitrogen significantly improved the catalytic performance due to the enhanced hydrogen adsorption, better wettability, and modified electronic properties of the Ru.
Selective oxidation of cyclohexane over gold nanoparticles supported on mesoporous silica prepared in the presence of thioether functionality
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0CY00025F
Carbon-nanotube-modified glassy carbon electrode for simultaneous determination of dopamine, ascorbic acid and uric acid: The effect of functional groups
Publisher: Elsevier BV
Date: 08-2012
Enhanced inactivation of bacteria with silver-modified mesoporous TiO 2 under weak ultraviolet irradiation
Publisher: Elsevier BV
Date: 10-2011
Rational Design and Synthesis of Nickel Niobium Oxide with High‐Rate Capability and Cycling Stability in a Wide Temperature Range
Publisher: Wiley
Date: 18-12-2021
Abstract: Conductive nickel niobium oxide (Ni 2 Nb 34 O 87 ) is rationally designed and synthesized as a safe anode material for lithium‐ion storage. Ni 2 Nb 34 O 87 exhibits high‐rate capability and cycling stability in the temperature range between ‐ 10 and 60 ° C. At 25 ° C, it delivers reversible specific capacities of 339 mAh g ‐1 at 0.1C with 98.1% capacity retention after 1000 cycles at 20C. At ‐ 10 ° C, it displays a reversible capacity of 207 mAh g ‐1 at 0.1C with 64.0% capacity retention when the C‐rate increases from 0.5C to 2C and no capacity decay after 1000 cycles at 2C. At 60 ° C, it exhibits a reversible capacity of 224 mAh g ‐1 at 0.1C with 65.3% capacity retention when the C‐rate increases from 0.5C to 10C and 78.7% capacity is maintained after 1000 cycles at 10C. In‐situ X‐ray diffraction measurements combined with Rietveld refinements reveal that the interlayer spacing of Ni 2 Nb 34 O 87 with a shear ReO 3 ‐type layered structure is relatively large, effectively facilitating lithium‐ion transport and storage with 6.71% unit‐cell‐volume expansion upon lithiation. This new anode material holds great promise for lithium‐ion batteries working in a wide temperature range.
Myoglobin within graphene oxide sheets and Nafion composite films as highly sensitive biosensor
Publisher: Elsevier BV
Date: 03-2012
A facile approach for the preparation of biomorphic CuO–ZrO2 catalyst for catalytic combustion of methane
Publisher: Elsevier BV
Date: 05-2012
Controllable synthesis of mesoporous F–TiO2 spheres for effective photocatalysis
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1JM11326G
Enhanced CO2 sorption efficiency in amine-functionalised 2D/3D graphene/silica hybrid sorbents
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8CC06373G
Abstract: Owing to the geometrical features of 2D graphene intercalated into 3D mesoporous silica, CO 2 sorption increased by 51% and the heat of sorption reduced by up to 27% as compared to a pure 3D mesoporous silica sorbent without graphene.
Growth of LiFePO4 nanoplatelets with orientated (010) facets on graphene for fast lithium storage
Publisher: Elsevier BV
Date: 03-2014
Facile synthesis of ZnFe2O4 nanoparticles with tunable magnetic and sensing properties
Publisher: American Chemical Society (ACS)
Date: 07-2013
DOI: 10.1021/LA401627X
Abstract: Nanoparticles (NPs) and colloidal nanocrystal clusters (CNCs) of ZnFe2O4 were synthesized by using a solvothermal method in a controlled manner through simply adjusting the solvents. When a glycerol/water mixture was used as the solvent, ZnFe2O4 NPs were obtained. However, using ethylene glycol solvent yielded well-dispersed ZnFe2O4 CNCs. X-ray diffraction (XRD) and transmission electron microscopy (TEM) data confirmed that the ZnFe2O4 NPs were a single crystalline phase with tunable sizes ranging from 12 to 20 nm, while the ZnFe2O4 CNCs of submicrometer size consisted of single-crystalline nanosheets. Magnetic measurement results showed that the ZnFe2O4 NPs were ferromagnetic with a very small hysteresis loop at room temperature. However, CNCs displayed a superparamagnetic behavior due to preferred orientations of the nanosheets. Electrochemical sensing properties showed that both the size of the NPs and the structure of the CNCs had a great influence on their electrochemical properties in the reduction of H2O2. Based on the experimental results, the formation mechanisms of both the ZnFe2O4 CNCs and NPs as well as their structure-property relationship were discussed.
A review on biomass-derived hard carbon materials for sodium-ion batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1MA00315A
Abstract: This paper presents a review of research progress for biomass-derived hard carbon materials for sodium-ion storage.
Binary Colloidal Crystals Fabricated with a Horizontal Deposition Method
Publisher: American Chemical Society (ACS)
Date: 16-06-2009
DOI: 10.1021/LA9002737
Abstract: We describe the use of a horizontal deposition method to prepare large-area binary colloidal crystals (bCCs). Two different sets of binary polystyrene spheres were employed to demonstrate the validity of this method. By varying the number ratios of small spheres with respect to large spheres, the stoichiometric configuration of the bCCs can be altered. Stable corresponding replica structures of the bCCs were also prepared, and the cross-sectional images of the binary inverse opals were obtained. Optical characterization demonstrated the presence of pseudostop bands, which were in agreement with the compositions of the material. The formation of the bCC by such a simple self-assembly method was attributed to the cooperative effect of interparticle electrostatic interactions and geometrical constrictions. This facile fabrication method further enhances the application potential of the bCCs and their inverse porous replicas with a binary pore system in the fields of photonics, solar cells, separations, catalysis, and biosensing.
A computational study of the effect of lamp arrangements on the performance of ultraviolet water disinfection reactors
Publisher: Elsevier BV
Date: 2015
Immobilization of aluminum chloride on MCM-41 as a new catalyst system for liquid-phase isopropylation of naphthalene
Publisher: Elsevier BV
Date: 02-01-2003
Sulfonated mesoporous carbons as a solid sulfonic acid catalyst
Publisher: Elsevier
Date: 2008
Copolymer-controlled homogeneous precipitation for the synthesis of porous microfibers of alumina
Publisher: American Chemical Society (ACS)
Date: 03-03-2007
DOI: 10.1021/LA0634185
Abstract: Mesoporous aluminas with a uniform fibrous morphology were synthesized using a copolymer-controlled homogeneous precipitation method under hydrothermal conditions. Scanning electron microscopy, X-ray diffraction, solid-state magic-angle spinning nuclear magnetic resonance, transmission electron microscopy, thermogravimetric analysis, nitrogen adsorption, Fourier transform infrared spectrometry, and elemental analysis techniques were used to characterize the s les. The effect of various synthesis conditions on the morphology and mesoporous structure of the alumina fibers was investigated. Such porous alumina microfibers may find applications in nanotechnology and catalysis. They can also be used as advanced high-temperature composite materials and templates for fabrication of fibrous materials of various compositions, such as carbon, transition-metal oxides, and polymers.
Biofuel purification by pervaporation and vapor permeation in metal-organic frameworks: A computational study
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0EE00630K
Preparation of nanoporous carbon microspheres by subcritical water carbonization and electrocapacitive study
Publisher: Elsevier BV
Date: 11-2013
Oxidative methane reforming with an intelligent catalyst: Sintering-tolerant supported nickel nanoparticles
Publisher: Wiley
Date: 07-10-2013
Abstract: Smart Catalyst: The cyclical diffusion of nanometer-sized nickel clusters into and out of the perovskite structure under elevated temperature and reducing and oxidizing atmosphere could in situ redeliver and redisperse Ni, thereby reinforcing the anti-coking and -sintering of Ni during oxidative reforming of CH4 .
Electrosynthesis of polypyrrole-reinforced helical α-MoO3 microribbons for high-energy aqueous Al3+-ion pseudocapacitors
Publisher: Elsevier BV
Date: 10-2022
Electrochemical properties of manganese ferrite-based supercapacitors in aqueous electrolyte: The effect of ionic radius
Publisher: Elsevier BV
Date: 09-2014
A generalized approach to the synthesis of mesoporous mixed metal oxides using the cation-anion double hydrolysis method
Publisher: American Scientific Publishers
Date: 12-2011
Supported gold catalysts for selective oxidation of organics
Publisher: American Scientific Publishers
Date: 12-2011
Highly Active Gas Phase Organometallic Catalysis Supported Within Metal–Organic Framework Pores
Publisher: American Chemical Society (ACS)
Date: 10-07-2020
DOI: 10.1021/JACS.0C05286
Electroactive porous films of myoglobin within calcium alginate
Publisher: Springer Science and Business Media LLC
Date: 06-11-2012
The Control of Attached Acid Groups on Sulfonated Polystyrene Nanospheres through the Design of Material Structure
Publisher: Trans Tech Publications, Ltd.
Date: 06-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.182-183.222
Abstract: Linearlinking polystyrene nanospheres (LPSs) with uniform size dispersion were synthesized by the emulsifier-free emulsion polymerization method. And with the adding of inylbenzene (DVB) crosslinking polystyrene nanospheres (CPSs) was also prepared. It was found out that the partical size of prepared nanospheres changed with the continuous increment of added DVB. The sulfonation of resultant polystyrene nanospheres yielded solids with sulfonic acid groups. The relationship between nanospheres material structure and attached acid groups was investigated in detail. It was observed that the amount of added DVB is the main factor which can affect the amount and thermal stability of attached sulfonic acid groups. The catalytic performance of resultant solid acid catalysts was evaluated through the esterification reaction of methanol with acetic acid. Moreover, the prepared sulfonated polystyrene nanospheres show higher acetic acid conversion than the commercial one, therefore the sulfonated nanospheres could be an excellent potential replacement for liquid acid catalyst.
Glucose hydrogenation over Ru nanoparticles embedded in templated porous carbon
Publisher: Elsevier
Date: 2008
Nanosphere lithography from template-directed colloidal sphere assemblies
Publisher: American Scientific Publishers
Date: 06-2006
DOI: 10.1166/JNN.2006.227
Abstract: Conventional nanosphere lithography holds the drawbacks of lacking precise control over the shape and architecture of the resultant nanostructures. In this work, nanoimprinting lithography was used to construct various desired patterns on a polymer film coated on a silicon substrate. The patterns were then used as templates to direct the self-assembly of silica colloidal spheres, forming colloidal assemblies with well-controlled sizes, shapes, and structures. Subsequent nanosphere lithography using template-directed colloidal sphere assemblies resulted in complex nanostructures that can not be obtained using the conventional nanosphere lithography method.
Electrocapacitive properties of nitrogen-containing porous carbon derived from cellulose
Publisher: Elsevier BV
Date: 08-2017
Nanoparticles-in-concavities as efficient nanocatalysts for carbon dioxide reforming of methane to hydrogen and syngas
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5CY01974E
Abstract: The ceria concavity-loaded Ni nanoparticle catalysts can lead to more active sites and promote CO 2 dissociative activation and CO desorption, thus enhancing significantly the catalytic performances for methane dry reforming with CO 2 .
Template Synthesis of Tubular Ruthenium Oxides for Supercapacitor Applications
Publisher: American Chemical Society (ACS)
Date: 28-07-2010
DOI: 10.1021/JP105146C
Mesoporous TiO 2 photocatalytic films on stainless steel for water decontamination
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C1CY00171J
Preparation of magnetically separable mesoporous Co@carbon/silica composites by the RAPET method
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C2NJ40595D
Incorporation of point defects into self-assembled three-dimensional colloidal crystals
Publisher: Wiley
Date: 05-12-2005
Sodium-Ion Storage Mechanism in Triquinoxalinylene and a Strategy for Improving Electrode Stability
Publisher: American Chemical Society (ACS)
Date: 26-03-2020
Incorporation of titanium into polymorph C of zeolite beta
Publisher: Elsevier
Date: 2008
Journal of Porous Materials: Editorial
Publisher: Springer Science and Business Media LLC
Date: 08-2006
Preparation of cellulose based microspheres by combining spray coagulating with spray drying
Publisher: Elsevier BV
Date: 10-2014
DOI: 10.1016/J.CARBPOL.2014.05.002
Abstract: Porous microspheres of regenerated cellulose with size in range of 1-2 μm and composite microspheres of chitosan coated cellulose with size of 1-3 μm were obtained through a two-step spray-assisted approach. The spray coagulating process must combine with a spray drying step to guarantee the formation of stable microspheres of cellulose. This approach exhibits the following two main virtues. First, the preparation was performed using aqueous solution of cellulose as precursor in the absence of organic solvent and surfactant Second, neither crosslinking agent nor separated crosslinking process was required for formation of stable microspheres. Moreover, the spray drying step also provided us with the chance to encapsulate guests into the resultant cellulose microspheres. The potential application of the cellulose microspheres acting as drug delivery vector has been studied in two PBS (phosphate-buffered saline) solution with pH values at 4.0 and 7.4 to mimic the environments of stomach and intestine, respectively.
Improved CO2 Sorption in Freeze-Dried Amine Functionalized Mesoporous Silica Sorbent
Publisher: American Chemical Society (ACS)
Date: 04-04-2018
Opal and inverse opal fabricated with a flow-controlled vertical deposition method
Publisher: American Chemical Society (ACS)
Date: 26-03-2005
DOI: 10.1021/LA046775T
Abstract: In this work, an improved vertical deposition method, namely, a flow-controlled vertical deposition (FCVD) method, was used to grow colloidal crystals with large spherical colloids in water solvent and to infiltrate the colloidal crystals. Using the FCVD method, latex spheres as large as 2 microm can be fabricated into colloidal crystals in water. In addition, the method works very well for controlling surface morphologies of silica-infiltrated opals. Furthermore, fabrication of colloidal crystal heterostructures was demonstrated.
Porphyrin–graphene oxide frameworks for long life sodium ion batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA02370G
Abstract: Porphyrin–graphene oxide frameworks for ambient temperature sodium-ion storage are investigated. The presence of porphyrin caters for a stronger sodium ion–electrode interaction to realize high-performance sodium-ion batteries, which deliver a capacity of ∼200 mA h g −1 even after resting for one month.
Improvement of Hard Carbon Electrode Performance by Manipulating SEI Formation at High Charging Rates
Publisher: American Chemical Society (ACS)
Date: 10-09-2019
Abstract: There is a growing demand for high-rate rechargeable batteries for powering electric vehicles and portable electronics. Here, we demonstrate a strategy for improving electrode performance by controlling the formation of solid electrolyte interphase (SEI). A composite electrode consisting of hard carbon (HC) and carbon nanotubes (CNTs) was used to study the formation of the SEI at different charging rates in an electrolyte consisting of 1 M NaClO
Synthesis of super-microporous organosilica microspheres through in situ self-assembly of nanoparticles
Publisher: Royal Society of Chemistry (RSC)
Date: 2005
DOI: 10.1039/B510224C
Patterning the surface of colloidal microspheres and fabrication of nonspherical particles
Publisher: Wiley
Date: 03-06-2008
Electrospun polycrystalline LixFe0.2Mn0.8PO4/carbon composite fibers for lithium-ion battery
Publisher: Elsevier BV
Date: 04-2016
Detecting the undetectable: The role of trace surfactant in the Jones-Ray effect
Publisher: AIP Publishing
Date: 15-11-0017
DOI: 10.1063/1.5050421
Abstract: The surface tension of dilute salt water is a fundamental property that is crucial to understanding the complexity of many aqueous phase processes. Small ions are known to be repelled from the air-water surface leading to an increase in the surface tension in accordance with the Gibbs adsorption isotherm. The Jones-Ray effect refers to the observation that at extremely low salt concentration, the surface tension decreases. Determining the mechanism that is responsible for this Jones-Ray effect is important for theoretically predicting the distribution of ions near surfaces. Here we use both experimental surface tension measurements and numerical solution of the Poisson-Boltzmann equation to demonstrate that very low concentrations of surfactant in water create a Jones-Ray effect. We also demonstrate that the low concentrations of the surfactant necessary to create the Jones-Ray effect are too small to be detectable by surface sensitive spectroscopic measurements. The effect of surface curvature on this behavior is also examined, and the implications for unexplained bubble phenomena are discussed. This work suggests that the purity standards for water may be inadequate and that the interactions between ions with background impurities are important to incorporate into our understanding of the driving forces that give rise to the speciation of ions at interfaces.
Electrospun gamma-Fe2O3 nanofibers as bioelectrochemical sensors for simultaneous determination of small biomolecules
Publisher: Elsevier BV
Date: 10-2018
DOI: 10.1016/J.ACA.2018.04.010
Abstract: Nanofibers of α-Fe
The Born model can accurately describe electrostatic ion solvation
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0CP04148C
Abstract: The solvation free energies of ions in water are consistent with the Born linear response model if the centre on which the ion–water repulsion force acts is moved from the oxygen atom towards the hydrogens.
Simulation and fabrication of THz waveguides with silicon wafer by using eye-shaped pillars as building blocks
Publisher: Springer Science and Business Media LLC
Date: 09-2010
Design and synthesis of periodic mesoporous organosilica materials with a multi-compartment structure
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA16497D
Abstract: Multi-compartment periodic mesoporous organosilica materials show desirable properties as anticancer drug carrier with high loading capacity and slow release rate.
Electrocapacitive properties of supercapacitors based on hierarchical porous carbons from chestnut shell
Publisher: Elsevier BV
Date: 04-2014
The role of oxygen vacancies of ABO3 perovskite oxides in the oxygen reduction reaction
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0EE00092B
Abstract: The oxygen reduction reaction (ORR) is one of the most important electrochemical reactions in energy conversion and storage technologies, such as fuel cells and metal–air batteries.
Polymer Electrode Materials for Sodium-ion Batteries
Publisher: MDPI AG
Date: 17-12-2018
DOI: 10.3390/MA11122567
Abstract: Sodium-ion batteries are promising alternative electrochemical energy storage devices due to the abundance of sodium resources. One of the challenges currently hindering the development of the sodium-ion battery technology is the lack of electrode materials suitable for reversibly storing/releasing sodium ions for a sufficiently long lifetime. Redox-active polymers provide opportunities for developing advanced electrode materials for sodium-ion batteries because of their structural ersity and flexibility, surface functionalities and tenability, and low cost. This review provides a short yet concise summary of recent developments in polymer electrode materials for sodium-ion batteries. Challenges facing polymer electrode materials for sodium-ion batteries are identified and analyzed. Strategies for improving polymer electrochemical performance are discussed. Future research perspectives in this important field are projected.
Gold nanoparticles supported on mesoporous silica: origin of high activity and role of Au NPs in selective oxidation of cyclohexane
Publisher: Springer Science and Business Media LLC
Date: 05-01-2016
DOI: 10.1038/SREP18817
Abstract: Homogeneous immobilization of gold nanoparticles (Au NPs) on mesoporous silica has been achieved by using a one-pot synthesis method in the presence of organosilane mercapto-propyl-trimethoxysilane (MPTMS). The resultant Au NPs exhibited an excellent catalytic activity in the solvent-free selective oxidation of cyclohexane using molecular oxygen. By establishing the structure-performance relationship, the origin of the high activity of mesoporous supported Au catalyst was identified to be due to the presence of low-coordinated Au (0) sites with high dispersion. Au NPs were confirmed to play a critical role in the catalytic oxidation of cyclohexane by promoting the activation of O 2 molecules and accelerating the formation of surface-active oxygen species.
Line defects embedded in three-dimensional photonic crystals
Publisher: Wiley
Date: 04-08-2005
Colloidal Photonic Crystals: Fabrication and Applications
Publisher: Wiley
Date: 16-11-2011
Effect of surfactants on the synthesis of monodisperse silica spheres
Publisher: Trans Tech Publications, Ltd.
Date: 11-2011
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.663-665.721
Abstract: In this work, the influence of surfactant including the amount and the nature of the surfactant as well as alcohol solvents with different hydrocarbon chains including methanol, ethanol, 1-propanol and n-butanol on the formation of silica spheres were investigated. The morphologies and the composition of the prepared silica spheres were studied with scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) techniques. The results revealed that the size and size distribution of the spheres can be modified by changing the concentration or the nature of the surfactant additives. The influence mechanisms of surfactants additives and the alcohol solvent on the formation of silica spheres were discussed based on nucleation and growing process of the spheres.
Phenol adsorption on zeolite-templated carbons with different structural and surface properties
Publisher: Elsevier BV
Date: 05-2005
Preparation of sucrose-based microporous carbons and their application as electrode materials for supercapacitors
Publisher: Elsevier BV
Date: 07-2012
Guest editorial: Particles and porous materials
Publisher: Wiley
Date: 05-2008
DOI: 10.1002/APJ.141
Spinifex nanocellulose derived hard carbon anodes for high-performance sodium-ion batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7SE00169J
Abstract: Spinifex grass derived hard carbon is used as anodes for sodium-ion batteries. Extraordinary stability and capacity retention of ∼300 mA h g −1 on prolonged cycling against sodium was observed. The eco-friendly and low-cost synthesis procedure make the biomass derived carbon material promising for energy storage applications.
The forces at work in colloidal self-assembly: A review on fundamental interactions between colloidal particles
Publisher: Wiley
Date: 05-2008
DOI: 10.1002/APJ.144
Modulating Charge Carrier Dynamics among Anisotropic Crystal Facets of Cu2O for Enhanced CO2 Photoreduction
Publisher: American Chemical Society (ACS)
Date: 28-07-2022
Efficient Control of the Shuttle Effect in Sodium–Sulfur Batteries with Functionalized Nanoporous Graphenes
Publisher: American Chemical Society (ACS)
Date: 26-08-2022
Pore size control of mesoporous silicas from mixtures of sodium silicate and TEOS
Publisher: Elsevier BV
Date: 11-2007
Templating methods for preparation of porous structures
Publisher: Royal Society of Chemistry (RSC)
Date: 2006
DOI: 10.1039/B513060C
Tailored Polyimide–Graphene Nanocomposite as Negative Electrode and Reduced Graphene Oxide as Positive Electrode for Flexible Hybrid Sodium-Ion Capacitors
Publisher: American Chemical Society (ACS)
Date: 26-11-2018
Abstract: Redox-active polyimide materials hold a great promise for electrochemical energy storage applications, especially for flexible energy storage devices. However, the low utilization efficiency due to poor electrical conductivity of the materials remains one of the greatest challenges. In this work, we designed and prepared polyimide-graphene composite materials and tested their electrochemical properties in sodium-ion capacitors. By manipulating the interfacial chemistry and interactions between the polyimide and graphene, composite electrode materials with different polyimide particle sizes and morphologies were obtained. Sodium-ion storage capacity was significantly improved, from ∼50 mAh g
Understanding the hydrothermal stability of large-pore periodic mesoporous organosilicas and pure silicas
Publisher: Elsevier BV
Date: 07-2006
Foreword
Publisher: Springer Science and Business Media LLC
Date: 12-05-2010
Progress in the development of solid-state electrolytes for reversible room-temperature sodium–sulfur batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2MA00428C
Abstract: Solid electrolytes for room-temperature sodium–sulfur batteries have gained acceptance considering the advantages of safety, mitigating the polysulfide shuttling, stable cycling and mechanical property, which suppresses dendrite proliferation.
Effect of operating conditions on the removal of Pb2+ by microporous titanosilicate ETS-10 in a fixed-bed column
Publisher: Elsevier BV
Date: 2007
DOI: 10.1016/J.JCIS.2006.09.053
Abstract: The breakthrough behavior of Pb2+ in an ETS-10 fixed bed was experimentally examined at various operating conditions. Results showed that the adsorption amount of Pb2+ ions per unit mass of ETS-10 particles in a column is about 1.68 mmol/g under the experimental conditions. This amount was not markedly affected by the operating conditions because of the rapid adsorption rate of Pb2+ ions on ETS-10. In the presence of competitive metal ions, the amount of Pb2+ adsorbed on ETS-10 was slightly reduced. An overshoot of the effluent concentrations of competitive metal ions Cu2+ and Cd2+ was observed in the adsorption systems of binary and ternary solutions. This is ascribed to the replacement of pre-adsorbed Cu2+ and Cd2+ ions by Pb2+ ions. The ETS-10 column broken up by Pb2+ ions can be regenerated by using an EDTA-Na2 solution and the regenerated column can be reused.
Fabrication of non-close-packed colloidal crystals by using a sequential growth method
Publisher: IEEE
Date: 10-2006
Artificial defect engineering in three-dimensional colloidal photonic crystals
Publisher: Wiley
Date: 14-11-2007
Synthesis, characterization and capacitive performance of hydrous manganese dioxide nanostructures
Publisher: IOP Publishing
Date: 25-03-2011
DOI: 10.1088/0957-4484/22/12/125703
Abstract: Hydrous manganese dioxide nanostructures were synthesized via a catalytic oxidation reaction mechanism at mild temperatures. It was found that the morphology of the manganese dioxide nanostructures was significantly influenced by the pH of the reaction system. With increasing pH the morphology of manganese dioxide nanostructures changed from urchin-like structures to nanobelts. The capacitive performance was investigated by using cycle voltammetry and galvanostatic charge/discharge techniques. Hydrous manganese dioxide nanostructures obtained from a basic solution exhibited a capacitance of 262 F g − 1 at a current density of 250 mA g − 1 and a capacitive retention of 75% after 1200 cycles, suggesting that this is a promising electrode material for supercapacitors. The high specific capacitance is attributed to the hydrous nature coupled with a high surface area (181 m 2 g − 1 ) of the manganese dioxide nanostructure.
LiFePO4/carbon nanowires with 3D nano-network structure as potential high performance cathode for lithium ion batteries
Publisher: Elsevier BV
Date: 02-2016
Urea-Functionalized Silver Catalyst toward Efficient and Robust CO2Electrolysis with Relieved Reliance on Alkali Cations
Publisher: American Chemical Society (ACS)
Date: 08-2022
Abstract: We report a new strategy to improve the reactivity and durability of a membrane electrode assembly (MEA)-type electrolyzer for CO
Molecular interplay of cations and nonpolar/polar sorbates in titanosilicate ETS-10
Publisher: American Chemical Society (ACS)
Date: 23-07-2008
DOI: 10.1021/JP801387F
Encapsulation of NiCo2O4 in nitrogen-doped reduced graphene oxide for sodium ion capacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA03411G
Abstract: The graphene framework guarantees good electronic conductivity and provides space for accommodating the volume changes of NiCo 2 O 4 particles during charge/discharge.
Local structure changes of microporous titanosilicate ETS-10 upon acid treatment
Publisher: American Chemical Society (ACS)
Date: 14-12-2007
DOI: 10.1021/JP056107W
Visible-light-induced dye degradation over copper-modified reduced graphene oxide
Publisher: Wiley
Date: 07-01-2011
Abstract: Previously, it was found that reduced graphene oxide (RGO) can degrade rhodamine B (RhB) under visible-light irradiation, but with an extraordinarily slow rate. It was also found that modification of RGO with gold nanoparticles can dramatically accelerate the photoreaction rate. Herein, we describe the preparation and photocatalytic properties of copper-ion-modified RGO composite materials, which display a faster photocatalytic reaction rate and better mineralization under visible-light irradiation than gold-modified RGO. The copper-ion-modified RGO composites were prepared by an immersion method. The characterization results of X-ray diffraction, transmission electron microscopy, field-emission scanning electron microscopy, and X-ray photoelectron spectroscopy show the presence of crystalline copper species Cu(2)(OH)(3)NO(3) and Cu(2)(OH)(3)Cl on the surface of RGO. Modification of RGO with the copper species greatly enhances the degradation of RhB--after 3 hours of reaction under visible-light irradiation, the total organic carbon is decreased by about 31%. The copper species act as an electron relay, passing the excited electrons from the RGO sheets to adsorbed oxygen, thus leading to continuous generation of reactive oxygen species for the degradation of RhB.
Controlled synthesis, magnetic and sensing properties of hematite nanorods and microcapsules
Publisher: Elsevier BV
Date: 05-2011
Titanate@TiO2 core-shell nanobelts with an enhanced photocatalytic activity
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA11247K
Improving the Visible-Light Photocatalytic Activity of Graphitic Carbon Nitride by Carbon Black Doping
Publisher: American Chemical Society (ACS)
Date: 07-11-2018
Advanced porous carbon electrodes for electrochemical capacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA11114H
Exchange of heavy metal ions in titanosilicate Na-ETS-10 membrane from molecular dynamics simulations
Publisher: Elsevier BV
Date: 06-2009
Hollow Rutile Cuboid Arrays Grown on Carbon Fiber Cloth as a Flexible Electrode for Sodium‐Ion Batteries
Publisher: Wiley
Date: 09-09-2020
Nanocables prepared from polyamide 66 nanotubes enveloping Pt nanowires by: A secondary-template method
Publisher: Springer Science and Business Media LLC
Date: 07-08-2007
Novel porous materials for emerging applications
Publisher: Royal Society of Chemistry (RSC)
Date: 2006
DOI: 10.1039/B600327N
Improving the electrocapacitive properties of mesoporous CMK-5 carbon with carbon nanotubes and nitrogen doping
Publisher: Elsevier BV
Date: 2012
A new approach to nanoporous graphene sheets via rapid microwave-induced plasma for energy applications
Publisher: IOP Publishing
Date: 20-11-2014
DOI: 10.1088/0957-4484/25/49/495604
Abstract: We developed a novel approach to the fabrication of three-dimensional, nanoporous graphene sheets featuring a high specific surface area of 734.9 m(2) g(-1) and an ultrahigh pore volume of 4.1 cm(3) g(-1) through a rapid microwave-induced plasma treatment. The sheets were used as electrodes for supercapacitors and for the oxygen reduction reaction (ORR) for fuel cells. Argon-plasma grown sheets exhibited a 44% improvement of supercapacitive performance (203 F g(-1)) over the plasma grown sheets (141 F g(-1)). N-doped sheets with Co3O4 showed an outstanding ORR activity evidenced from the much smaller Tafel slope (42 mV/decade) than that of Pt/C (82 mV/decade), which is caused by the high electrical conductivity of the graphene sheets, the planar N species content and the nanoporous morphology.
One-step solvothermal synthesis of Fe 3O 4@C core-shell nanoparticles with tunable sizes
Publisher: IOP Publishing
Date: 30-03-2012
DOI: 10.1088/0957-4484/23/16/165601
Abstract: We report the synthesis of Fe3O4@C core-shell nanoparticles (FCNPs) by using a facile one-step solvothermal method. The FCNPs consisted of Fe3O4 particles as the cores and amorphous uniform carbon shells. The content of Fe3O4 is up to 81.6 wt%. These core-shell nanoparticles are aggregated by primary nanocrystals with a size of 10-12 nm. The FCNPs possess a hollow interior, high magnetization, excellent absorption properties and abundant surface hydroxyl groups. A possible growth mechanism of the FCNPs is proposed. The role of glucose in regulating the grain size and morphology of the particles is discussed. The absorption properties of the FCNPs towards Cr(VI) in aqueous solution is investigated. We demonstrate that the FCNPs can effectively remove more than 90 wt% of Cr(VI) from aqueous solution.
Remarkable carbon dioxide catalytic capture (CDCC) leading to solid-form carbon material via a new CVD integrated process (CVD-IP): An alternative route for CO2 sequestration
Publisher: Elsevier BV
Date: 2013
An improved convective self-assembly method for the fabrication of binary colloidal crystals and inverse structures
Publisher: Elsevier BV
Date: 08-2012
DOI: 10.1016/J.JCIS.2012.04.076
Abstract: We report an improved convective self-assembly method for the fabrication of highly ordered, crack-free binary colloidal crystals (BCCs) and the associated inverse structures in large domains at length scales of several centimeters. With this method, BCCs can be fabricated in a non-close packed pattern and binary inverse opal films can be obtained over a centimeter scale. The presence of tetraethyl orthosilicate (TEOS) sol in the self-assembly system was found to play a significant role in the resultant structures. The pseudostop band positions are adjustable via varying the number ratio of small to large polystyrene (PS) spheres. At a given TEOS-to-PS ratio, the binary inverse opal film thickness was controllable by varying the colloidal volume fraction with an upper thickness threshold (>16 layers).
Synthesis of MnO2 nanowires and their capacitive behavior in aqueous electrolytes containing magnesium ions
Publisher: Elsevier BV
Date: 09-2018
Synthesis of amorphous nickel–cobalt–manganese hydroxides for supercapacitor-battery hybrid energy storage system
Publisher: Elsevier BV
Date: 02-2019
Experimental and theoretical investigation on the interaction between palladium nanoparticles and functionalized carbon nanotubes for Heck synthesis
Publisher: Elsevier BV
Date: 09-2013
Advanced oxidation of orange II using TiO2 supported on porous adsorbents: The role of pH, H2O2 and O3
Publisher: Elsevier BV
Date: 05-2007
Functionalization of large-pore mesoporous silicas with organosilanes by direct synthesis
Publisher: Elsevier BV
Date: 07-2004
A high-performance asymmetric supercapacitor fabricated with graphene-based electrodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1EE01354H
Charge Storage Behavior of Carbon Nanoparticles toward Alkali Metal Ions at Fast-Charging Rates
Publisher: American Chemical Society (ACS)
Date: 03-11-2021
The synergy effect on Li storage of LiFePO4 with activated carbon modifications
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA44218G
XPS study on microporous titanosilicate ETS-10 upon acid treatment
Publisher: Elsevier BV
Date: 11-2006
Desired crystal oriented LiFePO4 nanoplatelets in situ anchored on a graphene cross-linked conductive network for fast lithium storage
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5NR01831E
Abstract: Electron transfer and lithium ion diffusion rates are the key factors limiting the lithium ion storage in anisotropic LiFePO4 electrodes. In this work, we employed a facile solvothermal method to synthesize a "platelet-on-sheet" LiFePO4/graphene composite (LFP@GNs), which is LiFePO4 nanoplatelets in situ grown on graphene sheets with highly oriented (010) facets of LiFePO4 crystals. Such a two-phase contact mode with graphene sheets cross-linked to form a three-dimensional porous network is favourable for both fast lithium ion and electron transports. As a result, the designed LFP@GNs displayed a high rate capability (∼56 mA h g(-1) at 60 C) and long life cycling stability (∼87% capacity retention over 1000 cycles at 10 C). For comparison purposes, s les ex situ modified with graphene (LFP/GNs) as well as pure LiFePO4 platelets (LFP) were also prepared and investigated. More importantly, the obtained LFP@GNs can be used as a basic unit for constructing more complex structures to further improve electrochemical performance, such as coating the exposed LFP surface with a thin layer of carbon to build a C@LFP@GN composite to further enhance its cycling stability (∼98% capacity retention over 1000 cycles at 10 C).
Transesterification of leather tanning waste to biodiesel at supercritical condition: Kinetics and thermodynamics studies
Publisher: Elsevier BV
Date: 03-2013
Unusual adsorption properties of microporous titanosilicate ETS-10 toward heavy metal lead
Publisher: American Chemical Society (ACS)
Date: 12-02-2003
DOI: 10.1021/LA026490L
Platelet CMK-5 as an excellent mesoporous carbon to enhance the pseudocapacitance of polyaniline
Publisher: American Chemical Society (ACS)
Date: 24-07-2013
DOI: 10.1021/AM4018016
Abstract: A high-performance supercapacitor electrode consisting of platelet ordered mesoporous carbon CMK-5 and polyaniline (PANi) was prepared by chemical oxidative polymerization of aniline in the presence of CMK-5. The PANi with uniform size of 2-5 nm was primarily confined in the mesochannels of CMK-5 at low PANi loadings (40 and 51 wt %), whereas at a high loading of 64 wt %, additional PANi thin films with thicknesses of 5-10 nm were coated on the surface of the CMK-5 particles. Such CMK-5-PANi composites afforded a high electrochemical active surface area for surface Faradic redox reactions, leading to a more than 50% utilization efficiency when considering the theoretical capacitance of PANi of about 2000 F/g. As a result, a specific capacitance of 803 F/g and an energy density of 27.4 Wh/kg were achieved for CMK-5-PANi composite electrode with 64 wt % PANi, showing substantial improvement as compared with symmetric capacitors configured with CMK-5 electrodes (10.1 Wh/kg) or pure PANi electrodes (16.4 Wh/kg). Moreover, an excellent rate capability and a substantially enhanced electrochemical stability with 81% capacitance retention as compared with 68% of pure PANi were also observed over 1000 charge-discharge cycles at a constant current density of 4.0 A/g.
Surfactant-intercalated, chemically reduced graphene oxide for high performance supercapacitor electrodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1JM00007A
Catalytic conversion of methane into benzene over ceria–zirconia‐promoted molybdenum‐supported zeolite for methane dehydroaromatization
Publisher: Wiley
Date: 03-05-2023
DOI: 10.1002/AOC.7101
Abstract: The promotional effect of mixed ceria–zirconia oxides (CZO) over the Mo/HZSM‐5 catalyst for methane dehydroaromatization (MDA) reaction was studied. The surface and structural properties of the synthesized catalyst were thoroughly exemplified using various microscopic and spectroscopic tools, and the correlation between catalytic properties and its performance for MDA reaction is discussed. The impregnation of CZO solid solution on Mo/HZSM‐5 was monitored to give an excellent catalytic performance and improved benzene production rate (4.5 μmol/gcat.s) related to the conventionally prepared Mo/HZSM‐5 (3.1 μmol/gcat.s) catalyst. In addition, a significant reduction in coke formation was examined in the CZO‐modified Mo/HZSM‐5 catalyst. The prevailing comprehension for higher catalytic activity could be because of the redox properties of CZO‐deposited Mo/HZSM‐5, which acts as a selective oxygen supplier and performs hydrogen combustion during the reaction, which is indirectly probed by residual gas analysis‐mass spectroscopy, oxygen‐temperature programmed desorption, and hydrogen‐temperature programmed reduction analysis. The selective hydrogen combustion prevents the over‐oxidation of aromatic species formed during the reaction, whereas the generated steam helps in reducing the coke content deposition in the MDA reaction. Thus, the advantage of CZO‐incorporated Mo/HZSM‐5 is manifested as it promotes the reaction equilibrium to shift towards the formation of benzene which is favourable for MDA reaction.
NiO hollow microspheres interconnected by carbon nanotubes as an anode for lithium ion batteries
Publisher: Elsevier BV
Date: 09-2016
Enhancement of photocatalytic activity of P25 TiO2 by vanadium-ion implantation under visible light irradiation
Publisher: Elsevier BV
Date: 07-2007
DOI: 10.1016/J.JCIS.2007.03.007
Abstract: An ion-implantation method was used to prepare V-ion-implanted P25 TiO2 photocatalysts. Their photocatalytic activity for the degradation of formic acid under visible light irradiation (lambda>450 nm) was investigated. Upon implantation of V ions into the lattice of P25 TiO2, the photoactivity was remarkably enhanced. HRTEM images showed that the implanted V ions existed in the form of VO2(T) in the lattice of P25 TiO2. The intensity of photoluminescence (PL) spectra of V-ion-implanted P25 TiO2 decreased with the increase of the amount of implanted V ions, indicating the decrease of electron-hole pair recombination. It was also observed that the lower the PL intensity of V-ion-implanted P25 TiO2, the higher the photoactivity.
Effect of fluoro and hydroxy analogies of diglyme on sodium-ion storage in graphite: a computational study
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3CP00903C
Abstract: Binding of F-diglyme and OH-diglyme derivatives could be effectively used to tune the co-intercalation of Na into graphite.
Efficient suppression of the shuttle effect in Na-S batteries with an As2S3anchoring monolayer
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0CP05507G
Abstract: Sodium–sulfur batteries (NaSBs) have emerged as a promising energy storage technology for large-scale stationary applications such as smart electrical grids due to their exceptionally high energy density and cost-effectiveness.
Intercalation of mesoporous carbon spheres between reduced graphene oxide sheets for preparing high-rate supercapacitor electrodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1EE01094H
Graphene/polyaniline nanofiber composites as supercapacitor electrodes
Publisher: American Chemical Society (ACS)
Date: 27-01-2010
DOI: 10.1021/CM902876U
Synthesis of defect-rich palladium-tin alloy nanochain networks for formic acid oxidation
Publisher: Elsevier BV
Date: 11-2018
DOI: 10.1016/J.JCIS.2018.06.074
Abstract: Unique and novel Pd
Zeolite beta catalysts for n-C7 hydroisomerization
Publisher: Springer Science and Business Media LLC
Date: 08-2006
Nanoporous organosilica membrane for water desalination
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3CC40434J
Abstract: Nanoporous organosilica membranes are successfully coated on porous alumina tubes and tested for desalination via membrane distillation. The membranes produced pure water (up to 13 kg m(-2) h(-1)) across an extreme range of salt concentrations (10-150 g L(-1) NaCl) at moderate temperatures (≤60 °C) without exhibiting the characteristic flux decay of competing materials.
Hollow carbon spheres with a controllable shell structure
Publisher: Royal Society of Chemistry (RSC)
Date: 2006
DOI: 10.1039/B609971H
Magnesium/Lithium Hybrid Batteries Based on SnS 2 -MoS 2 with Reversible Conversion Reactions
Publisher: American Association for the Advancement of Science (AAAS)
Date: 2022
Abstract: The magnesium/lithium hybrid batteries (MLHBs) featuring dendrite-less deposition with Mg anode and Li-storage cathode are a promising alternative to Li-ion batteries for large-scale energy storage. However, their limited energy density limits their practical implementation. To improve this, beyond the commonly proposed intercalation compounds, high-capacity conversion-type cathodes based on heterostructures of tin sulphide-molybdenum disulphide (SnS 2 -MoS 2 ) are proposed in this work. In idual SnS 2 is already a promising high-capacity electrode material for multivalent batteries and undergoes conversion reactions during the ion storage process. The introduction of S-deficient MoS 2 enhances the reversibility of SnS 2 in the conversion reaction via strong polysulfide anchoring and catalytic effect. Our results show that the SnS 2 -MoS 2 electrode achieves a high charge capacity of ~600 mAh g -1 at 50 mA g -1 and an excellent rate capability of 240 mAh g -1 at 1000 mAh g -1 with a negligible capacity fading rate of 0.063% per cycle across 1000 cycles. The results highlight a new direction toward designing 2D heterostructures as high-capacity cathodes beyond intercalation-type cathodes for multivalent-ion batteries.
Photocatalytic decomposition of formic acid under visible light irradiation over V-ion-implanted TiO2 thin film photocatalysts prepared on quartz substrate by ionized cluster beam (ICB) deposition method
Publisher: Springer Science and Business Media LLC
Date: 2006
Cation-anion double hydrolysis derived mesoporous γ-Al 2O3 as an environmentally friendly and efficient aldol reaction catalyst
Publisher: Royal Society of Chemistry (RSC)
Date: 2008
DOI: 10.1039/B713283B
Prediction of the Osmotic/Activity Coefficients of Alkali Hydroxide Electrolytes
Publisher: American Chemical Society (ACS)
Date: 06-10-2021
Preparation and characterization of Si0 2/TiO 2-Pt Core/Shell nanostructures and evaluation of their photocatalytic activity
Publisher: American Scientific Publishers
Date: 2009
Abstract: SiO2/TiO2-Pt core/shell nanostructures with Pt nanoparticles well dispersed in the TiO2 shell were prepared and characterized with X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM) techniques. The photocatalytic activity of the s les was evaluated using the reaction of decomposition of orange II in liquid phase. While the SiO2/TiO2-Pt nanostructure displayed a similar photocatalytic activity to that of Degussa P25, the former can be easily separated from the reaction medium by sedimentation. Interestingly, the photocatalytic activity of the core/shell nanostructures was observed to be improved upon catalyst recycling. It was also observed that the presence of Pt can indeed enhance the photocatalytic performance of TiO2 catalyst. The photocatalyst described in this work represents a potential catalyst system for practical applications in water treatment.
A flexible graphene–carbon fiber composite electrode with high surface area-normalized capacitance
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9SE00099B
Abstract: The effective surface area utilization, carbon nanostructure and pores all contribute to high surface area-normalized capacitance.
Cellulose-derived hierarchical porous carbon for high-performance flexible supercapacitors
Publisher: Elsevier BV
Date: 12-2018
Colloidal Woodpile Structure: Three-Dimensional Photonic Crystal with a Dual Periodicity
Publisher: American Chemical Society (ACS)
Date: 07-2006
DOI: 10.1021/LA060808I
Abstract: With planar photolithography and self-assembly techniques, multilayer colloidal crystals with a woodpile structure were fabricated. They represent a new kind of photonic crystals, that is, three-dimensional (3D) photonic crystals with a dual periodicity one comes from the face-centered cubic (fcc) structure within the colloidal crystal strips and the other one results from the periodic arrangement of the colloidal crystal strips.
Crystalline carbon hollow spheres, crystalline carbon-SnO2 hollow spheres, and crystalline SnO2 hollow spheres: Synthesis and performance in reversible Li-ion storage
Publisher: American Chemical Society (ACS)
Date: 10-02-2006
DOI: 10.1021/CM052219O
Fabrication of one-step co-fired proton-conducting solid oxide fuel cells with the assistance of microwave sintering
Publisher: Elsevier BV
Date: 12-2018
Solvent effect on the self-assembly of colloidal microspheres via a horizontal deposition method
Publisher: Elsevier BV
Date: 05-2012
Graphene–metal–oxide composites for the degradation of dyes under visible light irradiation
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0JM03827J
Carbon-based materials as supercapacitor electrodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2009
DOI: 10.1039/B813846J
Abstract: This tutorial review provides a brief summary of recent research progress on carbon-based electrode materials for supercapacitors, as well as the importance of electrolytes in the development of supercapacitor technology. The basic principles of supercapacitors, the characteristics and performances of various nanostructured carbon-based electrode materials are discussed. Aqueous and non-aqueous electrolyte solutions used in supercapacitors are compared. The trend on future development of high-power and high-energy supercapacitors is analyzed.
Characterization and photocatalytic properties of titanium-containing mesoporous SBA-15
Publisher: American Chemical Society (ACS)
Date: 14-04-2006
DOI: 10.1021/IE0514253
A hybrid sodium-ion capacitor with polyimide as anode and polyimide-derived carbon as cathode
Publisher: Elsevier BV
Date: 08-2018
Enhancement of photo-to-current efficiency over two-dimensional Bi 2MoO6 nanoplate thin-film photoelectrode
Publisher: The Electrochemical Society
Date: 2008
DOI: 10.1149/1.2968955
Growth of silicon/carbon microrods on graphite microspheres as improved anodes for lithium-ion batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA01474F
Potassium-Ion Storage in Cellulose-Derived Hard Carbon: The Role of Functional Groups
Publisher: Wiley
Date: 08-07-2020
Macroporous TiO2/carbon composites prepared via a simple soaking process
Publisher: Elsevier BV
Date: 09-2010
Hierarchical N-doped TiO2 hollow microspheres consisting of nanothorns with exposed anatase {101} facets
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1CC11796C
Abstract: A green solvothermal synthesis approach employing water as a hollowing controller and diethylenetriamine as both crystal growth stabilizer and N dopant source to the preparation of hierarchical N-doped TiO(2) hollow microspheres comprised of nanothorns with exposed anatase {101} facets is established. The superstructured TiO(2) shows excellent photocatalytic activities in degrading dyes under visible light irradiation.
Effect of planar defects on optical properties in three-dimensional colloid crystals
Publisher: Shanghai Institute of Optics and Fine Mechanics
Date: 2009
Preparation and characterization of highly ordered graphitic mesoporous carbon as a Pt catalyst support for direct methanol fuel cells
Publisher: American Chemical Society (ACS)
Date: 29-06-2005
DOI: 10.1021/CM0502222
A simple route to preparing γ-Fe2O3/RGO composite electrode materials for lithium ion batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7TA10052C
Abstract: A simple approach to synthesizing γ-Fe 2 O 3 nanoparticles encapsulated by reduced graphene oxide (RGO) sheets is demonstrated for the first time.
Mechanistic insights into copper removal by pyrolytic tire char through equilibrium studies
Publisher: American Chemical Society (ACS)
Date: 08-04-2010
DOI: 10.1021/IE901289E
One-pot synthesis of carbon nanotube-graphene hybrids via syngas production
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3TA13871B
Copper/MCM-41 as catalyst for the wet oxidation of phenol
Publisher: Elsevier BV
Date: 08-2001
Functionalized nanoporous silicas for the immobilization of penicillin acylase
Publisher: Elsevier BV
Date: 10-2004
Assembly of colloidal cuprous oxide nanocrystals and study of its magnetic and electrocatalytic properties
Publisher: Elsevier BV
Date: 06-2017
Method for Accurately Predicting Solvation Structure
Publisher: American Chemical Society (ACS)
Date: 26-06-2020
Water-dispersible carbon nanotubes for aqueous surface-initiated atom transfer radical polymerization
Publisher: American Scientific Publishers
Date: 03-2008
DOI: 10.1166/JNN.2008.325
MoNb12O33 as a new anode material for high-capacity, safe, rapid and durable Li+ storage: structural characteristics, electrochemical properties and working mechanisms
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA00309F
Abstract: Intercalation-type MoNb 12 O 33 with a porous-microspherical nanoarchitecture is explored as the first molybdenum niobium oxide anode material for Li + storage.
Degradation of Organic Dyes over Fenton-Like Cu2O–Cu/C Catalysts
Publisher: American Chemical Society (ACS)
Date: 26-09-2018
Lithium Titanate Cuboid Arrays Grown on Carbon Fiber Cloth for High‐Rate Flexible Lithium‐Ion Batteries
Publisher: Wiley
Date: 28-08-2019
Abstract: High-rate performance flexible lithium-ion batteries are desirable for the realization of wearable electronics. The flexibility of the electrode in the battery is a key requirement for this technology. In the present work, spinel lithium titanate (Li
Photocatalytic degradation of dyes over graphene-gold nanocomposites under visible light irradiation
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C0CC01259A
Abstract: Graphene modified with gold nanoparticles displayed an excellent visible-light photocatalytic performance in degrading dyes in water.
Graphene-based electrodes for electrochemical energy storage
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3EE23870A
Morphologies of large-pore periodic mesoporous organosilicas
Publisher: American Chemical Society (ACS)
Date: 30-04-2005
DOI: 10.1021/JP050449K
Abstract: In this article, we report a systematic investigation on the morphologies of SBA-15 type large-pore periodic mesoporous organosilicas templated by the block copolymer P123. By tuning synthetic parameters such as stirring, acidity, reaction ratio, reaction duration, and autoclaving, a wide spectrum of unique primary particle morphologies, such as the spindle-, pearl-, diamond-, rod-, and platelike particles, and nanoparticles has been prepared. These primary particles were found to self-assemble in solution to form various large hierarchical macrostructures, such as mesostructured necklaces and cobweb-supported necklaces. The assembling process was elucidated with the information observed at different stages of reaction. Stirring, reaction duration, and autoclaving were identified to be the key factors affecting the efficiency and degree of the self-assembly process. A nucleation-accretion mechanism for the formation of various PMO primary particles was proposed by examining the relation between the external morphologies and the underlying mesostructure.
An RAPET approach to in situ synthesis of carbon modified Li4Ti5O12 anode nanocrystals with improved conductivity
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3NJ01319G
Molecular Dynamics Simulations of the Influence of Drop Size and Surface Potential on the Contact Angle of Ionic-Liquid Droplets
Publisher: American Chemical Society (ACS)
Date: 07-07-2016
A three-dimensional porous LiFePO4 cathode material modified with a nitrogen-doped graphene aerogel for high-power lithium ion batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4EE03825H
Abstract: LFP@N-GA with (010) facet oriented LFP NPs embedded in N-GA provides both rapid Li + and electron pathways in the electrode as well as short Li + diffusion length in LFP crystals.
Preparation and characterization of polycrystalline bismuth titanate Bi12TiO20 and its photocatalytic properties under visible light irradiation
Publisher: American Chemical Society (ACS)
Date: 2007
DOI: 10.1021/IE0613220
Encapsulation of Iodine in Nitrogen-Containing Porous Carbon Plate Arrays on Carbon Fiber Cloth as a Freestanding Cathode for Lithium-Iodine Batteries
Publisher: American Chemical Society (ACS)
Date: 29-06-2021
Ordered mesoporous carbon particles covered with carbon nanotubes
Publisher: Elsevier BV
Date: 04-2006
Fabrication of large-area, transferable colloidal monolayers utilizing self-assembly at the air/water interface
Publisher: Wiley
Date: 10-02-2009
Abstract: A versatile and simple method is presented for the rapid fabrication of close‐packed colloidal 2D crystals with large domain sizes by floating and redeposition of colloidal monolayers at the air/water interface. A detailed analysis of the particle surface transformation and packing during the in idual steps of the monolayer fabrication process has been conducted. It was found that the quality of the monolayer depends on parameters like colloidal particle distribution on the initial substrate, subphase pH, and addition of surfactants. The floating monolayers could be transferred and stacked onto many substrate types, regardless of surface polarity, roughness, or curvature. magnified image
Graphene-based materials as supercapacitor electrodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C000417K
Bimetallic ruthenium-copper nanoparticles embedded in mesoporous carbon as an effective hydrogenation catalyst
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3NR03813K
Abstract: Bimetallic ruthenium-copper nanoparticles embedded in the pore walls of mesoporous carbon were prepared via a template route and evaluated in terms of catalytic properties in D-glucose hydrogenation. The existence of bimetallic entities was supported by Ru L3-edge and Cu K-edge X-ray absorption results. The hydrogen spillover effect of the bimetallic catalyst on the hydrogenation reaction was evidenced by the results of both hydrogen and carbon monoxide chemisorptions. The bimetallic catalyst displayed a higher catalytic activity than the single-metal catalysts prepared using the same approach, namely ruthenium or copper nanoparticles embedded in the pore walls of mesoporous carbon. This improvement was due to the changes in the geometric and electronic structures of the bimetallic catalyst because of the presence of the second metal.
Exploring the role of NiO as a sintering aid in BaZr0.1Ce0.7Y0.2O3-δ electrolyte for proton-conducting solid oxide fuel cells
Publisher: Elsevier BV
Date: 09-2018
Improved reversible dehydrogenation properties of MgH2 by the synergetic effects of graphene oxide-based porous carbon and TiCl3
Publisher: Elsevier BV
Date: 04-2018
Microwave-assisted impregnation of highly dispersed Mo over HZSM-5 using various Mo precursors for methane dehydroaromatization
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3RE00143A
Abstract: Two different Mo oxide precursors (α-MoO 3 and h-MoO 3 ) were synthesized to study their effect on the catalytic activity toward methane dehydroaromatization. To improve the dispersibility, microwave assisted impregnation of Mo precursors over the HZSM-5 support was employed.
The sacrificial role of graphene oxide in stabilising a Fenton-like catalyst GO-Fe<inf>3</inf>O<inf>4</inf>
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5CC02292D
Abstract: GO–Fe 3 O 4 confers superior catalytic efficiency, recyclability and longevity, via the oxidation of CC bonds, thus transferring electrons to Fe 3 O 4 .
3D Heterogeneous Co3O4@Co3S4 Nanoarrays Grown on Ni Foam as a Binder‐Free Electrode for Lithium‐Ion Batteries
Publisher: Wiley
Date: 04-12-2017
Self-Assembly of Crack-Free Silica Colloidal Crystals on Patterned Silicon Substrates
Publisher: American Chemical Society (ACS)
Date: 03-05-2011
DOI: 10.1021/JP201674X
Fabrication of free-standing non-close-packed opal films
Publisher: Royal Society of Chemistry (RSC)
Date: 2006
DOI: 10.1039/B611013D
Synthesis and characterization of microporous carbons templated by ammonium-form zeolite Y
Publisher: Elsevier BV
Date: 2004
High regularity porous oxophilic metal films on Pt as model bifunctional catalysts for methanol oxidation
Publisher: American Chemical Society (ACS)
Date: 12-08-2006
DOI: 10.1021/CM0606023
Simulation and fabrication of binary colloidal photonic crystals and their inverse structures
Publisher: Elsevier BV
Date: 10-2009
Effects of the Position of a Chemically or Size-Induced Planar Defect on the Optical Properties of Colloidal Crystals
Publisher: American Chemical Society (ACS)
Date: 15-07-2009
DOI: 10.1021/JP903651M
Facile synthesis of cobalt ferrite submicrospheres with tunable magnetic and electrocatalytic properties
Publisher: Elsevier BV
Date: 04-2013
Dendritic Pt–Cu bimetallic nanocrystals with a high electrocatalytic activity toward methanol oxidation
Publisher: Elsevier BV
Date: 02-2012
Insights into the electrocatalysis of nitrobenzene using chemically-modified carbon nanotube electrodes
Publisher: Springer Science and Business Media LLC
Date: 10-09-2014
DOI: 10.1038/SREP06321
Self-assembled Ni/NiO/RGO heterostructures for high-performance supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA14790E
Abstract: A hierarchically nanoscale Ni/NiO/RGO hybrid has been derived by a facile, green and self-assembled sol–gel way combined with thermal treatment in N 2 , giving a high performance super-capacitor with ultrahigh and stable specific capacitance.
Preparation of layered titanate with interlayer cadmium sulfide particles for visible-light-assisted dye degradation
Publisher: Royal Society of Chemistry (RSC)
Date: 10-11-2014
DOI: 10.1039/C4RA09692D
Flow-Controlled Vertical Deposition Method for the Fabrication of Photonic Crystals
Publisher: American Chemical Society (ACS)
Date: 25-12-2004
DOI: 10.1021/LA035686Y
Comparative Analysis of Structural and Morphological Properties of Large-Pore Periodic Mesoporous Organosilicas and Pure Silicas
Publisher: American Chemical Society (ACS)
Date: 29-09-2004
DOI: 10.1021/JP047479S
Ultrathin MnO2 nanofibers grown on graphitic carbon spheres as high-performance asymmetric supercapacitor electrodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C1JM13872C
Capacitance-enhanced sodium-ion storage in nitrogen-rich hard carbon
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA06754B
Abstract: Nitrogen-rich hard carbon with enhanced capacitive storage for room temperature sodium-ion battery is investigated. The presence of nitrogen allows stronger sodium ion interaction to realize high-performance batteries with a specific capacity of ∼204 mA h g −1 after 1000 cycles at 1 A g −1 current density.
Bactericidal activity of silver nanoparticles supported on microporous titanosilicate ETS-10
Publisher: Elsevier BV
Date: 04-2009
Application of Artificial Neural Network and Genetic Programming in Modeling and Optimization of Ultraviolet Water Disinfection Reactors
Publisher: Informa UK Limited
Date: 22-08-2015
Synthesis and Capacitive Properties of Manganese Oxide Nanosheets Dispersed on Functionalized Graphene Sheets
Publisher: American Chemical Society (ACS)
Date: 21-03-2011
DOI: 10.1021/JP200724H
Surface engineering of anode materials for improving sodium-ion storage performance
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D1TA09567F
Abstract: The surface of battery electrodes has a tremendous influence on cell performance. Recent research progress towards surface structure engineering of anode materials for sodium-ion batteries is summarized and discussed in this article.
Pillaring chemically exfoliated graphene oxide with carbon nanotubes for photocatalytic degradation of dyes under visible light irradiation
Publisher: American Chemical Society (ACS)
Date: 28-10-2010
DOI: 10.1021/NN102308R
Abstract: Graphene oxide (GO) and reduced graphene oxide (RGO) platelets were pillared with carbon nanotubes (CNTs) by using the chemical vapor deposition (CVD) method with acetonitrile as the carbon source and nickel nanoparticles as the catalyst, aimed to prepare graphene-based materials with a high surface area and a good electrical conductivity. Characterization data showed that the composite materials with RGO layers pillared by CNTs formed a robust three-dimensional (3D) porous structure of specific surfaces as high as 352 m(2)/g. The amount and length of the CNT pillars connecting the RGO layers were controlled by changing the amount of the nickel metal catalyst and the time of CVD. The CNT-pillared RGO composite materials exhibited an excellent visible light photocatalytic performance in degrading dye Rhodamine B because of the unique porous structure and the exceptional electron transfer property of graphene. Such CNT-RGO composites represent a new family of innovative carbon materials for visible-light-activated photocatalysis.
Ionic liquid modified poly(2, 6-dimethyl-1, 4-phenylene oxide) for CO 2 separation
Publisher: Springer Science and Business Media LLC
Date: 02-2012
Preparation of Porous Hollow SiO 2 Spheres by a Modified Stöber Process Using MF Microspheres as Templates
Publisher: Springer Science and Business Media LLC
Date: 06-12-2012
Thermally reduced ruthenium nanoparticles as a highly active heterogeneous catalyst for hydrogenation of monoaromatics
Publisher: American Chemical Society (ACS)
Date: 31-10-2007
DOI: 10.1021/JA072697V
Abstract: We report here a thermal reduction method for preparing Ru catalysts supported on a carbon substrate. Mesoporous SBA-15 silica, surface-carbon-coated SBA-15, templated mesoporous carbon, activated carbon, and carbon black with different pore structures and compositions were employed as catalyst supports to explore the versatility of the thermal reduction method. Nitrogen adsorption, X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, scanning transmission electron microscopy, thermogravimetric analysis, and X-ray absorption near-edge structure techniques were used to characterize the s les. It was observed that carbon species that could thermally reduce Ru species at high temperatures played a vital role in the reduction process. Ru nanoparticles supported on various carbon-based substrates exhibited good dispersion with an appropriate particle size, high crystallinity, strong resistance against oxidative atmosphere, less leaching, lack of aggregation, and avoidance of pore blocking. As such, these catalysts display a remarkably high catalytic activity and stability in the hydrogenation of benzene and toluene (up to 3-24-fold compared with Ru catalysts prepared by traditional methods). It is believed that the excellent catalytic performance of the thermally reduced Ru nanoparticles is related to the intimate interfacial contact between the Ru nanoparticles and the carbon support.
A Hybrid Mg2+ /Li+ Battery Based on Interlayer-Expanded MoS2 /Graphene Cathode
Publisher: Wiley
Date: 26-05-2017
Performance analysis of ultraviolet water disinfection reactors using computational fluid dynamics simulation
Publisher: Elsevier BV
Date: 04-2013
Impurities Limit the Capacitance of Carbon-Based Supercapacitors
Publisher: American Chemical Society (ACS)
Date: 23-01-2019
Evolution of interparticle capillary forces during drying of colloidal crystals
Publisher: American Chemical Society (ACS)
Date: 14-03-2006
DOI: 10.1021/LA052934C
Abstract: Photonic crystals are periodic structures that have the capability to manipulate the photons in the same way as semiconductors do for electrons. The self-assembly strategy that utilizes colloidal crystals as a template to form photonic crystals has received a great deal of recent research interest because it is simple and cost-effective. Experimental studies and theoretical analysis have speculated that capillary forces play a pivotal role in forming the colloidal crystals during the crystal growth process and that particularly during the drying stage the changing of the magnitude of capillary forces is critical to the resultant microstructure. This paper presents a computational analysis of the changing capillary forces, which may throw light on a refined strategy for controlling colloidal crystal growth.
Controlled synthesis, magnetic and photocatalytic properties of hollow spheres and colloidal nanocrystal clusters of manganese ferrite
Publisher: Elsevier BV
Date: 02-2012
A review of molecular modelling of electric double layer capacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3CP55186E
Abstract: Electric double-layer capacitors are a family of electrochemical energy storage devices that offer a number of advantages, such as high power density and long cyclability. In recent years, research and development of electric double-layer capacitor technology has been growing rapidly, in response to the increasing demand for energy storage devices from emerging industries, such as hybrid and electric vehicles, renewable energy, and smart grid management. The past few years have witnessed a number of significant research breakthroughs in terms of novel electrodes, new electrolytes, and fabrication of devices, thanks to the discovery of innovative materials (e.g. graphene, carbide-derived carbon, and templated carbon) and the availability of advanced experimental and computational tools. However, some experimental observations could not be clearly understood and interpreted due to limitations of traditional theories, some of which were developed more than one hundred years ago. This has led to significant research efforts in computational simulation and modelling, aimed at developing new theories, or improving the existing ones to help interpret experimental results. This review article provides a summary of research progress in molecular modelling of the physical phenomena taking place in electric double-layer capacitors. An introduction to electric double-layer capacitors and their applications, alongside a brief description of electric double layer theories, is presented first. Second, molecular modelling of ion behaviours of various electrolytes interacting with electrodes under different conditions is reviewed. Finally, key conclusions and outlooks are given. Simulations on comparing electric double-layer structure at planar and porous electrode surfaces under equilibrium conditions have revealed significant structural differences between the two electrode types, and porous electrodes have been shown to store charge more efficiently. Accurate electrolyte and electrode models which account for polarisation effects are critical for future simulations which will consider more complex electrode geometries, particularly for the study of dynamics of electrolyte transport, where the exclusion of electrode polarisation leads to significant artefacts.
Mesoporous carbon nanospheres with an excellent electrocapacitive performance
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0JM03322G
Hydrogenation of glucose over Ru nanoparticles embedded in templated porous carbon
Publisher: CSIRO Publishing
Date: 2009
DOI: 10.1071/CH09132
Abstract: Ruthenium (Ru) nanoparticles incorporated into the pore walls of porous carbon was used as a catalyst in glucose hydrogenation to produce sorbitol. In comparison with other catalysts, including commercial catalysts and catalysts prepared using other methods, the Ru-C nanostructured catalyst displayed higher catalytic activity and stability. These effects were associated with the enhanced contact between the Ru nanoparticles and carbon matrix, as well as the unblocked pores of the catalyst.
Synthesis and catalytic properties of ZSM-5 zeolite with hierarchical pores prepared in the presence of n-hexyltrimethylammonium bromide
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA05350A
Abstract: ZSM-5 zeolites with hierarchical pores have been synthesized with n -hexyltrimethylammonium bromide and exhibited superior catalytic performance to microporous zeolites.
Synthesis of P(St-MMA-AA) colloids and application in colloidal crystals
Publisher: Informa UK Limited
Date: 2011
A Poly(ionic liquid) Gel Electrolyte for Efficient all Solid Electrochemical Double-Layer Capacitor
Publisher: Springer Science and Business Media LLC
Date: 19-07-2018
DOI: 10.1038/S41598-018-29028-Y
Abstract: Polyionic liquid based gels have stimulated significant interest due to their wide applications in flexible electronics, such as wearable electronics, roll-up displays, smart mobile devices and implantable biosensors. Novel supported liquid gel electrolyte using polymerisable ionic liquid and an acrylate monomer, has been developed in this work by entrapping ionic liquid during polymerisation instead of post polymerisation impregnation. The chemically crosslinked polyionic liquid gel electrolyte (PIL) is prepared using 2-hydroxyethylmethacrylate (HEMA) monomer and a polymerisable ionic liquid, 1,4-di(vinylimidazolium)butane bisbromide (DVIMBr) in an ionic liquid (IL- 1-butyl-3 methylimidazolium hexafluorophosphate) as the polymerisation solvent, which resulted in in-situ entrapment of the IL in the gel during polymerisation and crosslinking of the polymer. The supported liquid gel electrolyte (SLG) material was characterised with thermal analysis, infrared spectroscopy, and dynamic mechanical analysis, and was found to be stable with good mechanical properties. The electrochemical analysis showed that these chemically cross-linked PIL gel electrolyte-supported ILs are suitable for solid-state, flexible supercapacitor applications.
Lithium-Ion Transport Behavior in Thin-Film Graphite Electrodes with SEI Layers Formed at Different Current Densities
Publisher: American Chemical Society (ACS)
Date: 07-09-2021
1 × 3 Beam splitter based on self-collimation effect in two-dimensional photonic crystals
Publisher: Elsevier BV
Date: 02-2011
Zeolite-templated nanoporous carbon for high-performance supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA00850G
Abstract: Hierarchical porous carbon prepared with calcium-containing nanocrystalline beta zeolite as the template and ethylene as the carbon source at a relatively low carbonization temperature (600 °C) displayed excellent electrocapacitive properties.
Nitrogen-doped titanate-anatase core-shell nanobelts with exposed {101} anatase facets and enhanced visible light photocatalytic activity
Publisher: American Chemical Society (ACS)
Date: 23-03-2012
DOI: 10.1021/JA300730C
Abstract: Anatase TiO(2) with specifically exposed facets has been extensively studied for maximizing its photocatalytic activity. However, most previous preparation methods involve high-pressure processing and corrosive chemicals. Few works have been conducted on hierarchical composite nanostructures assembled from well-defined TiO(2) nanocrystals. Here, we report a facile method for the preparation of nitrogen-doped titanate-anatase core-shell nanobelts. Anatase nanorods with specifically exposed {101} facets were obtained from a simple evaporation-induced, self-assembly (EISA) process and coupled with another semiconductor photocatalyst. The composite material with improved visible-light-harvesting ability, high charge-hole mobility, and low electron-hole recombination exhibited high photocatalytic performance and stability. The results presented here will make significant contributions toward the development of delicate composite photocatalysts for photocatalytic water purification and solar energy utilization.
Carrageenan Asissted Synthesis of Palladium Nanoflowers and Their Electrocatalytic Activity toward Ethanol (vol 6, pg 1133, 2018)
Publisher: American Chemical Society (ACS)
Date: 05-02-2018
Revisiting the Stability of the Cr4+/Cr3+ Redox Couple in Sodium Superionic Conductor Compounds
Publisher: American Chemical Society (ACS)
Date: 28-05-2020
Synthesis of Magnetic MnFe2O4/Polyaniline Composite Microspheres and Their Electrocatalytic Activity for Oxygen Reduction Reaction
Publisher: American Scientific Publishers
Date: 09-2015
Modeling synergistic adsorption of phenol/aniline mixtures in the aqueous phase onto porous polymer adsorbents
Publisher: Elsevier BV
Date: 02-2007
DOI: 10.1016/J.JCIS.2006.10.056
Abstract: The adsorption equilibria of phenol and aniline on nonpolar polymer adsorbents (NDA-100, XAD-4, NDA-16 and NDA-1800) were investigated in single- and binary-solute adsorption systems at 313 K. The results showed that all the adsorption isotherms of phenol and aniline on these adsorbents can be well fitted by Freundlich and Langmuir equations, and the experimental uptake of phenol and aniline in all binary-component systems is obviously higher than predicted by the extended Langmuir model, arising presumably from the synergistic effect caused by the laterally acid-base interaction between the adsorbed phenol and aniline molecules. A new model (MELM) was developed to quantitatively describe the synergistic adsorption behavior of phenol/aniline equimolar mixtures in the binary-solute systems and showed a marked improvement in correlating the binary-solute adsorption of phenol and aniline by comparison with the widely used extended Langmuir model. The newly developed model confirms that the synergistic coefficient of one adsorbate is linearly correlated with the adsorbed amount of the other, and the larger average pore size of adsorbent results in the greater synergistic effect of phenol/aniline equimolar mixtures adsorption.
Self-assembly of clewlike ZnO superstructures in the presence of copolymer
Publisher: American Chemical Society (ACS)
Date: 19-06-2007
DOI: 10.1021/JP0713256
Cation-anion double hydrolysis derived mesoporous γ-Al 2O3 as an environmentally friendly and efficient aldol reaction catalyst
Publisher: Royal Society of Chemistry (RSC)
Date: 2009
DOI: 10.1039/B819993K
Synthesis and characterization of magnetically separable Ag nanoparticles decorated mesoporous Fe3O4@carbon with antibacterial and catalytic properties
Publisher: Elsevier BV
Date: 09-2014
Optimization of catalyst-free production of biodiesel from Ceiba pentandra (kapok) oil with high free fatty acid contents
Publisher: Elsevier BV
Date: 08-2013
Pebax-1657 nanocomposite membranes incorporated with nanoparticles/ colloids/carbon nanotubes for CO2/N2 and CO 2/H2 separation
Publisher: Wiley
Date: 08-06-2013
DOI: 10.1002/APP.39500
Stabilization of silicon nanoparticles in graphene aerogel framework for lithium ion storage
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA00566C
Abstract: Schematic illustration of the preparation of Si/RGO-AG.
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