ORCID Profile
0000-0001-5633-3945
Current Organisation
RMIT University
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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.
Functional materials | Bioinorganic chemistry | Inorganic materials (incl. nanomaterials) | Chemical engineering | Catalysis and Mechanisms of Reactions | Catalytic Process Engineering | Functional Materials | Physical Chemistry (Incl. Structural) | Chemical Engineering | Ceramics | Inorganic chemistry | Solid state chemistry | Electrochemical energy storage and conversion
Hydrogen-based Energy Systems (incl. Internal Hydrogen Combustion Engines) | Solid Oxide Fuel Cells | Expanding Knowledge in the Chemical Sciences | Industrial Chemicals and Related Products not elsewhere classified | Production of Biofuels (Biomass) |
Publisher: Elsevier BV
Date: 08-2020
Publisher: Elsevier BV
Date: 12-2015
Publisher: Wiley
Date: 28-04-2016
Abstract: The polymerization of the photocleavable monomer, o-nitrobenzyl methacrylate (NBMA), is investigated using photoinduced electron/energy transfer reversible addition-fragmentation chain transfer polymerization. The polymerizations under visible red (λ max = 635 nm, 0.7 mW cm(-2) ) and yellow (λ max = 560 nm, 9.7 mW cm(-2) ) light are performed and demonstrate rational evidence of a controlled/living radical polymerization process. Well-defined poly(o-nitrobenzyl methacrylate) (PNBMA) homopolymers with good control over the molecular weight and polymer dispersity are successfully synthesized by varying the irradiation time and/or targeted degree of polymerization. Chain extension of a poly(oligo(ethylene glycol) methyl ether methacrylate) macro-chain transfer agent with NBMA is carried out to fabricate photocleavable hiphilic block copolymers (BCP). Finally, these self-assembled BCP rapidly dissemble under UV light suggesting the photoresponsive character of NBMA is not altered during the polymerization under yellow or red light. Such photoresponsive polymers can be potentially used for the remote-controlled delivery of therapeutic compounds.
Publisher: Elsevier BV
Date: 03-2013
Publisher: Elsevier BV
Date: 03-2013
Publisher: Wiley
Date: 10-07-2018
Publisher: Wiley
Date: 27-02-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7CY01999H
Abstract: The morphology-dependent doping effects on CeO 2 nanocrystals were investigated for the catalytic oxidation of carbon monoxide (CO).
Publisher: Elsevier BV
Date: 05-2019
Publisher: Elsevier BV
Date: 09-2013
Publisher: American Chemical Society (ACS)
Date: 02-11-2018
Publisher: Elsevier BV
Date: 07-2023
Publisher: American Chemical Society (ACS)
Date: 03-02-2017
Abstract: To overcome deactivation of Pd-based catalysts at high temperatures, we herein design a novel pathway by introducing a certain amount of CoO to the supported Au-Pd alloy nanoparticles (NPs) to generate high-performance Au-Pd-xCoO/three-dimensionally ordered macroporous (3DOM) Co
Publisher: Elsevier BV
Date: 09-2018
Publisher: Elsevier BV
Date: 06-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2YA00340F
Abstract: In recent years, rechargeable sodium–air batteries have attracted extensive attention and developed rapidly for electrochemical energy storage applications due to low costs, abundance of precursor resources, and high energy density.
Publisher: American Chemical Society (ACS)
Date: 30-08-2011
DOI: 10.1021/ES201659H
Abstract: Co(1-x)M(x)Cr(2)O(4) (M = Li, Zr x = 0-0.2) catalysts were prepared via the citric acid method and investigated for catalytic combustion of methane. Substitution at tetrahedral (A) sites with monovalent (Li) or tetravalent (Zr) metal ions led to a decrease or increase of the catalytic activity, respectively. The Co(0.95)Zr(0.05)Cr(2)O(4) catalyst proved to be the most active and its catalytic activity reached 90% of methane conversion at 448 °C, which dropped by 66 °C compared with that of the undoped CoCr(2)O(4) catalyst. XRD and Raman results indicated that lithium or zirconium substitution could modify the spinel structure and electronic properties. For lithium-doped catalysts, oxygen deficiency and a strong surface enrichment in lithium and chromium were detected. Zirconium substitution enhanced the reducibility of zirconium-doped catalysts and decreased the strength constant of both the Co-O band and the Cr-O band, which may contribute to the catalytic activity toward methane combustion. In addition, the prevalent catalytic combustion activity of the zirconium-substituted catalysts could be explained by their higher concentration of suprafacial, weakly chemisorbed oxygen.
Publisher: Greenwave Publishing of Canada
Date: 03-2014
Publisher: Springer Science and Business Media LLC
Date: 25-05-2017
DOI: 10.1038/NCOMMS15553
Abstract: Versatile superstructures composed of nanoparticles have recently been prepared using various disassembly methods. However, little information is known on how the structural disassembly influences the catalytic performance of the materials. Here we show how the disassembly of an ordered porous La 0.6 Sr 0.4 MnO 3 perovskite array, to give hexapod mesostructured nanoparticles, exposes a new crystal facet which is more active for catalytic methane combustion. On fragmenting three-dimensionally ordered macroporous (3DOM) structures in a controlled manner, via a process that has been likened to retrosynthesis, hexapod-shaped building blocks can be harvested which possess a mesostructured architecture. The hexapod-shaped perovskite catalyst exhibits excellent low temperature methane oxidation activity ( T 90% =438 °C reaction rate=4.84 × 10 −7 mol m −2 s −1 ). First principle calculations suggest the fractures, which occur at weak joints within the 3DOM architecture, afford a large area of (001) surface that displays a reduced energy barrier for hydrogen abstraction, thereby facilitating methane oxidation.
Publisher: American Chemical Society (ACS)
Date: 22-07-2008
DOI: 10.1021/IE800111E
Publisher: Elsevier BV
Date: 08-2018
Publisher: American Chemical Society (ACS)
Date: 21-06-2018
Publisher: American Chemical Society (ACS)
Date: 13-01-2023
Publisher: Springer Science and Business Media LLC
Date: 04-03-2015
DOI: 10.1038/SREP08722
Abstract: A facile one-step solution reaction route for growth of novel MoS 2 nanorose cross-linked by 3D rGO network, in which the MoS 2 nanorose is constructed by single-layered or few-layered MoS 2 nanosheets, is presented. Due to the 3D assembled hierarchical architecture of the ultrathin MoS 2 nanosheets and the interconnection of 3D rGO network, as well as the synergetic effects of MoS 2 and rGO, the as-prepared MoS 2 -NR/rGO nanohybrids delivered high specific capacity, excellent cycling and good rate performance when evaluated as an anode material for lithium-ion batteries. Moreover, the nanohybrids also show excellent hydrogen-evolution catalytic activity and durability in an acidic medium, which is superior to MoS 2 nanorose and their nanoparticles counterparts.
Publisher: Elsevier BV
Date: 02-2018
DOI: 10.1016/J.JCIS.2017.10.028
Abstract: A green, robust and eco-friendly procedure for the oxidation of aromatic organic sulfides to sulfones using H
Publisher: Springer Science and Business Media LLC
Date: 09-08-2025
Publisher: Elsevier BV
Date: 09-2018
Publisher: Elsevier BV
Date: 08-2018
Publisher: Wiley
Date: 15-03-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7CY02007D
Abstract: The adsorbed o -xylene species can immediately react with active oxygen species at the highly active Pd–CoO interface between Pd NPs and meso-CoO, thus resulting in good catalytic performance of Pd/meso-CoO for o -xylene catalytic combustion.
Publisher: Elsevier BV
Date: 09-2018
Publisher: Informa UK Limited
Date: 18-06-2021
Publisher: Elsevier BV
Date: 08-2018
Publisher: American Chemical Society (ACS)
Date: 20-03-2020
Publisher: Elsevier BV
Date: 04-2018
Publisher: Wiley
Date: 10-09-2018
Publisher: MDPI AG
Date: 20-09-2018
DOI: 10.3390/MOLECULES23102407
Abstract: Molecular dynamics (MD) simulation has been employed to study the wetting transitions of liquid gallium droplet on the graphene surfaces, which are decorated with three types of carbon nanopillars, and to explore the effect of the surface roughness and morphology on the wettability of liquid Ga. The simulation results showed that, at the beginning, the Ga film looks like an upside-down dish on the rough surface, different from that on the smooth graphene surface, and its size is crucial to the final state of liquid. Ga droplets exhibit a Cassie–Baxter (CB) state, a Wenzel state, a Mixed Wetting state, and a dewetting state on the patterned surfaces by changing distribution and the morphology of nanopillars. Top morphology of nanopillars has a direct impact on the wetting transition of liquid Ga. There are three transition states for the two types of carbon nanotube (CNT) substrates and two for the carbon nanocone (CNC) one. Furthermore, we have found that the substrates show high or low adhesion to the Ga droplet with the variation of their roughness and top morphology. With the roughness decreasing, the adhesion energy of the substrate decreases. With the same roughness, the CNC/graphene surface has the lowest adhesion energy, followed by CNT/graphene and capped CNT/graphene surfaces. Our findings provide not only valid support to previous works but also reveal new theories on the wetting model of the metal droplet on the rough substrates.
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8RA07372D
Abstract: Quantum mechanics-based simulations have been undertaken to support the development and application of multi-functional nano-devices constructed from zigzag silicon carbide nanoribbons, boron phosphide, nanoribbons, and Pb-chalcogenide (PbS, PbSe) nanoribbons.
Publisher: Elsevier BV
Date: 07-2019
Publisher: Springer Science and Business Media LLC
Date: 10-05-2013
Publisher: Elsevier BV
Date: 04-2012
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8CC01239C
Abstract: Hierarchically ordered perovskite materials which have potential applications in chemistry, energy and materials science.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0NR08097G
Abstract: The present work reports a template-free approach to fabricate 3D mesoporous CeO 2−x -based heterojunction nanostructures comprised of holey 2D nanosheets with outstanding densities of active sites that deliver excellent CO conversion performance.
Publisher: Wiley
Date: 29-11-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9MH01668F
Abstract: This review provides an up-to-date review on Bi-based nitrogen-fixation materials and future directions for the development of new Bi-based nitrogen-fixation materials under ambient conditions.
Publisher: Elsevier BV
Date: 02-2019
Publisher: American Chemical Society (ACS)
Date: 02-10-2018
Publisher: Wiley
Date: 04-07-2014
DOI: 10.1002/JCTB.4127
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA03126A
Abstract: Co 9 S 8 nanoparticles encapsulated in nitrogen-doped mesoporous carbon networks have been synthesized by annealing a cobalt containing metal organic framework with sulfur powders. The products exhibit excellent lithium storage properties.
Publisher: Elsevier BV
Date: 10-2013
Publisher: Elsevier BV
Date: 05-2017
Publisher: Elsevier BV
Date: 12-2018
Publisher: Elsevier BV
Date: 08-2014
DOI: 10.1016/J.JHAZMAT.2014.07.033
Abstract: Three-dimensionally ordered macroporous (3DOM) Mn2O3 and its supported gold (xAu/3DOM Mn2O3, x=1.9-7.5wt%) nanocatalysts were prepared using the polymethyl methacrylate-templating and polyvinyl alcohol-protected reduction methods, respectively. The 3DOM Mn2O3 and xAu/3DOM Mn2O3 s les exhibited a surface area of 34-38m(2)/g. The Au nanoparticles (NPs) with a size of 3.0-3.5nm were uniformly dispersed on the skeletons of 3DOM Mn2O3. The 5.8Au/3DOM Mn2O3 s le performed the best, giving the T90% (the temperature required for a conversion of 90%) of -15°C at space velocity (SV)=20,000mL/(gh) for CO oxidation and 244°C at SV=40,000mL/(gh) for toluene oxidation. The apparent activation energies (30 and 54kJ/mol) over 5.8Au/3DOM Mn2O3 were much lower than those (80 and 95kJ/mol) over 3DOM Mn2O3 for CO and toluene oxidation, respectively. The effects of SV, water vapor, CO2, and SO2 on catalytic activity were also examined. It is concluded that the excellent catalytic performance of 5.8Au/3DOM Mn2O3 was associated with its high oxygen adspecies concentration, good low-temperature reducibility, and strong interaction between Au NPs and 3DOM Mn2O3 as well as high-quality porous architecture.
Publisher: American Chemical Society (ACS)
Date: 17-08-2011
DOI: 10.1021/JP202958B
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6TA10896B
Abstract: The present review article highlights the preparation, characterization, properties, and recent developments in porous metal oxide catalysts for heterogeneous catalysis.
Publisher: MDPI AG
Date: 14-11-2019
Abstract: Pond water as surface water has certain environmental impacts on environmental media such as groundwater, lakes, atmosphere, and soil. Organic pollutants present in pond water may pose health risks to humans, but research on organic pollutants in pond water is rare. Here, taking pond water collected in rural areas of Hebei province as the s le, we analyzed and evaluated four categories of semi-volatile organic compounds (SVOCs), including 11 phenolic compounds, 7 aniline compounds, 16 parent polycyclic aromatic hydrocarbons (PAHs), 14 PAH derivatives, and 16 phthalate esters (PAEs). The results show that the 10 water s les contained 26.2–17034 ng/L of Σ phenols, 33.7–2612 ng/L of Σ anilines, 33.9–1651 ng/L of Σ PAHs, and 59.0–2800 ng/L of Σ PAEs. Furthermore, non-carcinogenic risk and carcinogenic risk caused by SVOCs through direct ingestion and dermal exposure were also assessed. The current levels of non-carcinogenic risks and carcinogenic risks through these two means of exposure are within acceptable limits, except for the site 1 and site 5 in Hebei province where a total cancer risk exceeds 10−6. It can be concluded that the pond water studied had a low risk of carcinogenicity to the human.
Publisher: Springer Science and Business Media LLC
Date: 19-12-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA05422G
Abstract: Reduced methylammonium lead-halide perovskite with double layer electron transporting layer crossing 21% power conversion efficiency.
Publisher: Elsevier BV
Date: 11-2020
Publisher: IOP Publishing
Date: 09-10-2015
DOI: 10.1088/0957-4484/26/44/445601
Abstract: Multicomponent nanoframes (NFs) with a hollow structural character have shown the potential to be applied in many fields. Here we report a novel strategy to synthesize Zn x Cd1-x S NFs via the synergistic actions of the graphene oxide (GO) confinement effect and oriented cation exchange. The obtained s les have been systematically characterized by x-ray diffractometry (XRD), field-emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), x-ray photospectroscopy (XPS) and Raman spectrometry. The results show that the two dimensional space confinement effect induced by GO and the oriented cation exchange reaction are responsible for the formation of the multicomponent NFs. The high photoelectrochemical activity and the low cost of the starting materials will make the multicomponent NFs applicable in photoelectronic and photoelectrocatalytic fields.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9TA11961B
Abstract: The present work reports a simple and rapid disassembly/reassembly approach at room temperature to tailor functional metal oxides of 2D and 3D architectures.
Publisher: Elsevier BV
Date: 07-2013
Publisher: American Chemical Society (ACS)
Date: 30-05-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA16671C
Abstract: Unique 1D aligned γ-Fe 2 O 3 nanorods with internal void spaces anchored on 2D rGO nanosheets were successfully constructed. The resultant nanocomposites of γ-Fe 2 O 3 /rGO exhibit excellent lithium storage properties.
Publisher: Elsevier BV
Date: 09-2019
Publisher: MDPI AG
Date: 03-02-2019
DOI: 10.3390/CATAL9020152
Abstract: Highly ordered ferromagnetic metal nanowire arrays with preferred growth direction show potential applications in electronic and spintronic devices. In this work, by employing a porous anodic aluminum oxide template-assisted electrodeposition method, we successfully prepared Ni nanowire arrays. Importantly, the growth direction of Ni nanowire arrays can be controlled by varying the current densities. The crystalline and growth orientation of Ni nanowire arrays show effects on magnetic properties. Single-crystallinity Ni nanowires with [110] orientation show the best magnetic properties, including coercivity and squareness, along the parallel direction of the nanowire axis. The current preparation strategy can be used to obtain other nanowire arrays (such as metal, alloy, and semiconductor) with controlled growth direction in confined space, and is therefore of broad interest for different applications.
Publisher: Elsevier BV
Date: 2019
Publisher: American Chemical Society (ACS)
Date: 09-03-2018
Abstract: Unique CO
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5CY01963J
Abstract: This study presents an optimization of dehydrogenation catalyst components including platinum, indium, and lithium using response surface methodology (RSM).
Publisher: Elsevier BV
Date: 04-2015
Publisher: Elsevier BV
Date: 2022
Publisher: American Chemical Society (ACS)
Date: 19-12-2018
Publisher: Wiley
Date: 11-07-2018
Publisher: Elsevier BV
Date: 10-2013
Publisher: Springer Science and Business Media LLC
Date: 13-10-2011
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3MH00135K
Abstract: Various in situ / operando characterization techniques provide a comprehensive understanding of LLZO-based solid-state lithium batteries.
Publisher: Elsevier BV
Date: 09-2016
Publisher: Wiley
Date: 06-2016
Abstract: Back Cover: Polymers featuring photoresponsive groups have been exploited as promising drug delivery systems. Light as spatially and temporally controllable external stimulus can be readily tuned and focused to trigger changes in the structure of polymer chains to provide "on-command" drug delivery. A benign synthesis route for a novel controlled polymerization, known as photoinduced electron/energy transfer-reversible addition-fragmentation (PET-RAFT) polymerization, is presented. Further details can be found in the article by A. Bagheri, J. Yeow, H. Arandiyan, J. Xu, C. Boyer,* and M. Limon page 905.
Publisher: Elsevier BV
Date: 09-2016
Publisher: Wiley
Date: 09-02-2015
Abstract: Highly dispersed Pt nanoparticles supported on high-surface-area 3D ordered macroporous (3DOM) Ce0.6 Zr0.3 Y0.1 O2 (CZY) are synthesized via a bubbling cetyltrimethyl ammonium bromide/P123-assisted reduction route. The 1.1 wt% Pt/3DOM CZY catalyst shows supercatalytic activity for methane combustion, which is attributed to a higher oxygen adspecies amount, larger surface area, better low-temperature reducibility, and unique nanovoid-walled 3DOM structure.
Publisher: American Chemical Society (ACS)
Date: 15-02-2015
Abstract: Three-dimensional (3D) ordered mesoporous Ag/MnO2 catalyst was prepared by impregnation method based on 3D-MnO2 and used for catalytic oxidation of HCHO. Ag nanoparticles are uniformly distributed on the polycrystalline wall of 3D-MnO2. The addition of Ag does not change the 3D ordered mesoporous structure of the Ag/MnO2, but does reduce the pore size and surface area. Ag nanoparticles provide sufficient active site for the oxidation reaction of HCHO, and Ag (111) crystal facets in the Ag/MnO2 are active faces. The 8.9% Ag/MnO2 catalyst shows a higher normalized rate (10.1 nmol·s(-1)·m(-2) at 110 °C) and TOF (0.007 s(-1) at 110 °C) under 1300 ppm of HCHO and 150 000 h(-1) of GHSV, and its apparent activation energy of the reaction is the lowest (39.1 kJ/mol). More Ag active sites, higher low-temperature reducibility, more abundant surface lattice oxygen species, oxygen vacancies, and lattice defects generated from interaction Ag with MnO2 are responsible for the excellent catalytic performance of HCHO oxidation on the 8.9% Ag/MnO2 catalyst. The 8.9% Ag/MnO2 catalyst remained highly active and stable under space velocity increasing from 60 000 to 150 000 h(-1), under initial HCHO concentration increasing from 500 to 1300 ppm, and under the presence of humidity, respectively.
Publisher: Elsevier BV
Date: 06-2019
Publisher: Elsevier BV
Date: 2015
Publisher: Wiley
Date: 24-07-2021
Abstract: While direct solar‐driven water splitting has been investigated as an important technology for low‐cost hydrogen production, the systems demonstrated so far either required expensive materials or presented low solar‐to‐hydrogen (STH) conversion efficiencies, both of which increase the levelized cost of hydrogen (LCOH). Here, a low‐cost material system is demonstrated, consisting of perovskite/Si tandem semiconductors and Ni‐based earth‐abundant catalysts for direct solar hydrogen generation. NiMo‐based hydrogen evolution reaction catalyst is reported, which has innovative “flower‐stem” morphology with enhanced reaction sites and presents very low reaction overpotential of 6 mV at 10 mA cm −2 . A perovskite solar cell with an unprecedented high open circuit voltage ( V oc ) of 1.271 V is developed, which is enabled by an optimized perovskite composition and an improved surface passivation. When the NiMo hydrogen evolution catalyst is wire‐connected with an optimally designed NiFe‐based oxygen evolution catalyst and a high‐performance perovskite‐Si tandem cell, the resulting integrated water splitting cell achieves a record 20% STH efficiency. Detailed analysis of the integrated system reveals that STH efficiencies of 25% can be achieved with realistic improvements in the perovskite cell and an LCOH below ≈ $3 kg −1 is feasible.
Publisher: American Chemical Society (ACS)
Date: 20-07-2017
Abstract: We report a scalable method to obtain a new material where large graphene sheets form webs linking carbon fibers. Film-fiber hybrid nonwoven mats are formed during fiber processing and converted to carbon structures after a simple thermal treatment. This contrasts with multistep methods that attempt to mix previously prepared graphene and fibers, or require complicated and costly processes for deposition of graphene over carbon fibers. The developed graphene-fiber hybrid structures have seamless connections between graphene and fibers, and in fact the graphene "veils" extend directly from one fiber into another forming a continuous surface. The graphene-fiber hybrid structures are produced in situ from aqueous poly(vinyl alcohol) solutions. The solutions were subjected to centrifugal spinning to produce fine nanofiber mats. The addition of salt to the polymer solution stimulated a capillarity effect that promoted the formation of thin veils, which become graphene sheets upon dehydration by sulfuric acid vapor followed by carbonization (at relatively low temperatures, below 800 °C). These veils extend over several micrometers within the pores of the fiber network, and consist of crystalline graphene layers that cross-link the fibers to form a highly interconnected hybrid network. The surface area and pore diameter of the hybrid structures were measured to be 521 m
Publisher: American Chemical Society (ACS)
Date: 10-11-2016
Publisher: Elsevier BV
Date: 06-2013
Publisher: Wiley
Date: 12-04-2023
Abstract: Materials derived from metal–organic frameworks (MOFs) have demonstrated exceptional structural variety and complexity and can be synthesized using low‐cost scalable methods. Although the inherent instability and low electrical conductivity of MOFs are largely responsible for their low uptake for catalysis and energy storage, a superior alternative is MOF‐derived metal‐based derivatives (MDs) as these can retain the complex nanostructures of MOFs while exhibiting stability and electrical conductivities of several orders of magnitude higher. The present work comprehensively reviews MDs in terms of synthesis and their nanostructural design, including oxides, sulfides, phosphides, nitrides, carbides, transition metals, and other minor species. The focal point of the approach is the identification and rationalization of the design parameters that lead to the generation of optimal compositions, structures, nanostructures, and resultant performance parameters. The aim of this approach is to provide an inclusive platform for the strategies to design and process these materials for specific applications. This work is complemented by detailed figures that both summarize the design and processing approaches that have been reported and indicate potential trajectories for development. The work is also supported by comprehensive and up‐to‐date tabular coverage of the reported studies.
Publisher: Elsevier BV
Date: 12-2018
Publisher: Springer Science and Business Media LLC
Date: 03-02-2017
Publisher: Elsevier BV
Date: 10-2013
Publisher: American Chemical Society (ACS)
Date: 11-05-2012
DOI: 10.1021/ES3001773
Abstract: A series of novel metal-oxide-supported CeO(2) catalysts were prepared via the wet impregnation method, and their NH(3)-SCR activities were investigated. The Ce/TiO(2)-SiO(2) catalyst with a Ti/Si mass ratio of 3/1 exhibited superior NH(3)-SCR activity and high N(2) selectivity in the temperature range of 250-450 °C. The characterization results revealed that the activity enhancement was correlated with the properties of the support material. Cerium was highly dispersed on the TiO(2)-SiO(2) binary metal oxide support, and the interaction of Ti and Si resulted in greater conversion of Ce(4+) to Ce(3+) on the surface of the catalyst compared to that on the single metal oxide supports. As a result of in the increased number of acid sites on Ce/TiO(2)-SiO(2) that resulted from the addition of SiO(2), the NH(3) adsorption capacity was significantly improved. All of these factors played significant roles in the high SCR activity. More importantly, Ce/TiO(2)-SiO(2) exhibited strong resistance to SO(2) and H(2)O poisoning. After the addition of SiO(2), the number of Lewis-acid sites was not decreased, but the number of Brønsted-acid sites on the TiO(2)-SiO(2) carrier was increased. The introduction of SiO(2) further weakened the alkalinity over the surface of the Ce/TiO(2)-SiO(2) catalyst, which resulted in sulfate not easily accumulating on the surface of the Ce/TiO(2)-SiO(2) catalyst in comparison with Ce/TiO(2).
Publisher: American Chemical Society (ACS)
Date: 25-11-2020
Publisher: Elsevier BV
Date: 02-2015
Publisher: American Association for the Advancement of Science (AAAS)
Date: 2021
Abstract: Nitrate is a crucial environmental pollutant, and its risk on ecosystem keeps increasing. Photocatalytic conversion of nitrate to ammonia can simultaneously achieve the commercialization of environmental hazards and recovery of valuable ammonia, which is green and sustainable for the planet. However, due to the thermodynamic and kinetic energy barriers, photocatalytic nitrate reduction usually involves a higher selectivity of the formation of nitrogen that largely limits the ammonia synthesis activity. In this work, we reported a green and facile synthesis of novel metallic ruthenium particle modified graphitic carbon nitride photocatalysts. Compare with bulk graphitic carbon nitride, the optimal s le had 2.93-fold photocatalytic nitrate reduction to ammonia activity (2.627 mg/h/g cat ), and the NH 3 selectivity increased from 50.77% to 77.9%. According to the experimental and calculated results, the enhanced photocatalytic performance is attributed to the stronger light absorption, nitrate adsorption, and lower energy barrier for the generation of ammonia. This work may provide a facile way to prepare metal modified photocatalysts to achieve highly efficient nitrate reduction to ammonia.
Publisher: Elsevier BV
Date: 06-2017
Publisher: Elsevier BV
Date: 11-2013
Publisher: Elsevier BV
Date: 06-2015
Publisher: Elsevier BV
Date: 11-2013
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D1MH01587G
Abstract: Recent advances of metal telluride anodes for high-performance lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs), which is important electrochemical energy storage technologies with high energy density and environmental benignity.
Publisher: Wiley
Date: 10-07-2018
Publisher: Elsevier BV
Date: 11-2012
Publisher: American Chemical Society (ACS)
Date: 15-09-2017
Publisher: American Chemical Society (ACS)
Date: 19-09-2016
Publisher: American Chemical Society (ACS)
Date: 05-01-2016
Abstract: Newly designed 3D highly ordered macro/mesoporous multifunctional La1-xCexCoO3 nanohybrid frameworks with a 2D hexagonal mesostructure were fabricated via facile meso-molding in a three-dimensionally macroporous perovskite (MTMP) route. The nanohybrid framework exhibited excellent catalytic activity for methane combustion, which derived from the MTMP providing a larger surface area and pore volume, uniform pore sizes, higher accessible surface oxygen concentration, better low-temperature reducibility, and a unique nanovoid 3D structure.
Publisher: MDPI AG
Date: 10-09-2018
DOI: 10.3390/CATAL8090388
Abstract: A Ni loaded catalyst on mesoporous ceria, with a large surface area, prepared through the surfactant-assisted precipitation and impregnation method was investigated as an efficient catalyst for propane partial oxidation to produce synthesis gas. The results show that 2.5 wt% Ni/CeO2 had the optimum Ni loading, exhibiting the highest catalytic propane conversion. It also showed excellent stability, with no obvious activity drop after a 10 h time-on-stream reaction and slightly decreased in H2 and CO yields. The investigation of the reactant composition effect on carbon formation showed that by decreasing the C/O2 ratio the content of accumulated carbon decreased and propane conversion increased. The good activity of the Ni/CeO2 can be ascribed to the high surface area and rich surface defects of the ceria support and a high dispersion of active sites (Ni nanoparticles).
Publisher: Elsevier BV
Date: 12-2016
Publisher: American Chemical Society (ACS)
Date: 11-02-2020
Publisher: Wiley
Date: 07-2016
Publisher: MDPI AG
Date: 08-04-2020
Abstract: Herein, we demonstrate a method used to tune the selectivity of LaNiO3 (LNO) perovskite catalysts through the substitution of La with K cations. LNO perovskites were synthesised using a simple sol-gel method, which exhibited 100% selectivity towards the methanation of CO2 at all temperatures investigated. La cations were partially replaced by K cations to varying degrees via control of precursor metal concentration during synthesis. It was demonstrated that the reaction selectivity between CO2 methanation and the reverse water gas shift (rWGS) could be tuned depending on the initial amount of K substituted. Tuning the selectivity (i.e., ratio of CH4 and CO products) between these reactions has been shown to be beneficial for downstream hydrocarbon reforming, while valorizing waste CO2. Spectroscopic and temperature-controlled desorption characterizations show that K incorporation on the catalyst surface decrease the stability of C-based intermediates, promoting the desorption of CO formed via the rWGS prior to methanation.
Publisher: American Chemical Society (ACS)
Date: 23-07-2018
Abstract: Mesoporous metals with high surface area hold promise for a variety of catalytic applications, especially for the reduction of CO
Publisher: Elsevier BV
Date: 07-2019
Publisher: Wiley
Date: 23-01-2018
Publisher: Elsevier BV
Date: 10-2008
Publisher: Springer Science and Business Media LLC
Date: 22-11-2020
Publisher: Springer Science and Business Media LLC
Date: 13-10-2018
DOI: 10.1007/S00128-018-2462-X
Abstract: A simple, practical and precise method for the simultaneous analysis of 32 different polycyclic aromatic hydrocarbon (PAHs) including 16 parent PAHs, 8 oxygenated-PAHs (oxy-PAHs), 4 chloro-PAHs, and 4 nitrogen-containing heterocyclic PACs (N-PACs), in groundwater was established via gas chromatography-mass spectrometry (GC-MS) combined with liquid-liquid extraction (LLE). The obtained detection method possesses instrument detection limits (at a signal to noise of 3:1) in the range of 0.05-10 ng/mL and method detection limits in the range of 1.7-13.2 ng/L. The average recoveries of the 32 analytes were in the range of 54.3%-127.0% with relative standard deviations (RSDs) < 20%, and the recoveries of 16 PAH derivatives ranged from 54.3 to 115.1% with RSDs < 17.9%. The method has been successfully applied to the screening of 64 groundwater s les from eastern China. The results revealed that 30 types of targets including 16 PAHs and 14 PAH derivatives were detected and that the groundwater in most areas is slightly polluted, while the pollution of Jiangsu Province and Shandong Province was more serious.
Publisher: Trans Tech Publications, Ltd.
Date: 07-10-2011
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.356-360.1070
Abstract: A series of perovskite-type oxides catalyst LaAl 1-x Ni x O 3 (0≤x≤1) and modified by substitute noble metal La 0.4 Al 0.2 Ni 0.8 M 0.6 O 3 (M=Pt, Pd, Ru, Rh, Ir) prepared by the sol-gel method shows high activity, stability, good resistance to carbon deposition and sintering of the catalyst for the reforming of methane reaction. The reaction was studied under continuous flow using a mixture of CH 4 :CO 2 =1:1. Catalysts were characterized by using BET, XRD, SEM, EDS, and HR-TEM. The specific surface area of catalysts varied greatly from 3.07 to 10.18 m 2 /g with the different substitution (x) following calcination at 850°C. XRD analysis of the solids shows LaNiO 3 and/or LaAlO 3 as the main phases present on the solids depending on the degree of substitution and more intense peaks and cell parameters showed formation of Ni-Al solid solutions. SEM coupled to an energy dispersive X-ray spectrometer (EDS) shows the possibility to obtain a solid solution of LaAl 1-x Ni x O 3 (0≤x≤1) with propionic acid as solvent. The obtained results revealed that the Rh and Ru catalysts showed the highest activity and also showed a high catalytic stability without any decrease in methane conversion up to 3000min of reaction.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0CS00639D
Abstract: The present work provides a critical review of the science and technological state-of-the-art of defect engineering applied to oxide perovskites in thermocatalytic, electrocatalytic, photocatalytic, and energy-storage applications.
Publisher: Elsevier BV
Date: 10-2015
Location: Iran (Islamic Republic of)
Start Date: 2017
End Date: 2019
Funder: Australian Research Council
View Funded ActivityStart Date: 2020
End Date: 2022
Funder: Australian Research Council
View Funded ActivityStart Date: 2020
End Date: 2023
Funder: Australian Research Council
View Funded ActivityStart Date: 07-2023
End Date: 06-2026
Amount: $508,018.00
Funder: Australian Research Council
View Funded ActivityStart Date: 09-2020
End Date: 09-2024
Amount: $467,500.00
Funder: Australian Research Council
View Funded ActivityStart Date: 2017
End Date: 12-2019
Amount: $312,500.00
Funder: Australian Research Council
View Funded ActivityStart Date: 07-2023
End Date: 07-2024
Amount: $549,859.00
Funder: Australian Research Council
View Funded Activity