ORCID Profile
0000-0003-3232-9903
Current Organisation
Nankai University
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Nanomaterials | Electrochemistry | Functional Materials | Materials Engineering
Energy Storage, Distribution and Supply not elsewhere classified | Energy Transformation not elsewhere classified | Energy Storage (excl. Hydrogen) |
Publisher: Wiley
Date: 23-06-2015
Publisher: American Chemical Society (ACS)
Date: 03-2011
DOI: 10.1021/AM1010095
Abstract: Fe(3)O(4)@C microcapsules were prepared using carbon-coated α-FeOOH nanorods as precursors, which were synthesized via two-step hydrothermal reactions. During the subsequent sintering procedure, α-FeOOH was reduced to Fe(3)O(4) by carbon, accompanied by the formation of mesopores. In Fe(3)O(4)@C microcapsules, mesoporous Fe(3)O(4) nanorods are coated with amorphorous carbon layers. The Fe(3)O(4)/C composites with such special structures demonstrate high specific capacity and good cyclic stability as anode materials in Li test cells.
Publisher: Wiley
Date: 05-08-2015
Publisher: Wiley
Date: 19-01-2017
Publisher: American Chemical Society (ACS)
Date: 05-11-2012
DOI: 10.1021/JP310054B
Publisher: American Chemical Society (ACS)
Date: 18-07-2014
DOI: 10.1021/AM5021233
Abstract: As substitutions for transition metal oxides (MOs), transition metal carbonates (MCO3) have been attracting more and more attention because of their lithium storage ability in recent years. Is MCO3 better than MOs for lithium storage? To answer this question, monodisperse CoCO3 and CoO microspindles with comparable structures were synthesized and investigated as a case study. Excluding its structural effect, we found CoCO3 still exhibited reversible capacities and rate capabilities much higher than those of CoO. The reversible capacity of CoCO3 after 10 cycles was 1065 mAh g(-1), 48.2% higher than that (∼720 mAh g(-1)) of CoO. Furthermore, the greatly different electrochemical behaviors were investigated by analyzing the discharge-charge profiles, cyclic voltammetry curves, and Nyquist plots in depth. This work can improve our understanding of the lithium storage advantages of MCO3 against MOs and enlighten us in terms of developing high-performance MCO3 with favorable structures.
Publisher: Royal Society of Chemistry (RSC)
Date: 30-06-2014
DOI: 10.1039/C4TA02055C
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2CP41604B
Abstract: Mesoporous slit-structured NiO materials were prepared through a simple hydrothermal route with sodium dodecyl benzene sulfonate (SDBS) as an additive. The as-prepared NiO s les presented high specific capacitance of over 1700 F g(-1) in the potential range from 0.10 to 0.56 V (vs. Hg/HgO/6 mol L(-1) KOH) at a constant current of 2 A g(-1), and good capacitance retention of ∼90% after 1000 continuous charge-discharge cycles. Only the NiO electrode materials with uniform slit-structured mesopores, which were confirmed through nitrogen adsorption-desorption isotherms and high-resolution transmission electron microscope, delivered excellent capacitances far beyond any previous report up to now. Pore structures (including pore shape, size, and distribution) are dominant factors in pseudocapacitor materials.
Publisher: Royal Society of Chemistry (RSC)
Date: 03-09-2014
DOI: 10.1039/C4CC05989A
Publisher: Wiley
Date: 12-05-2015
Abstract: The utilization of the greenhouse gas CO2 in energy-storage systems is highly desirable. It is now shown that the introduction of graphene as a cathode material significantly improves the performance of Li-CO2 batteries. Such batteries display a superior discharge capacity and enhanced cycle stability. Therefore, graphene can act as an efficient cathode in Li-CO2 batteries, and it provides a novel approach for simultaneously capturing CO2 and storing energy.
Publisher: American Chemical Society (ACS)
Date: 28-05-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6TA02845D
Abstract: This work presents P2-type layered Na 0.67 Co 0.5 Mn 0.5 O 2 with a hierarchical architecture as a cathode material for sodium ion batteries. Owing to its superior structural flexibility, it delivered outstanding rate capability and long cyclic stability.
Publisher: Elsevier BV
Date: 03-2013
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5CC07983G
Abstract: Utilizing the adsorption properties of metal–organic-frameworks to prepare a well-dispersed nano-SnO 2 @porous-carbon LIB anode material with superior capacity and cycle stability.
Publisher: Wiley
Date: 25-11-2016
Abstract: 2D composites with S doping into N-rich carbon nanosheets are fabricated, whose interlayer distance becomes large enough for Na
Publisher: American Chemical Society (ACS)
Date: 11-11-2013
DOI: 10.1021/AM404250K
Abstract: LiCoMnO4 with nanosized truncated octahedral structure was prepared via a modified sol-gel route. The single-crystalline subunits grew completely without serious agglomeration. The growth mechanism was discussed in detail. The s le was tested as cathode materials for 5 V Li-ion batteries. Ni doping was also investigated to decrease the content of Mn(3+) ions and the Mn dissolution, and then the decomposition of electrolyte was inhibited on the cathode surface. LiCo0.9Ni0.1MnO4 exhibited enhanced cyclic stability compared with the pristine LiCoMnO4.
Publisher: Elsevier BV
Date: 02-2015
Publisher: Wiley
Date: 27-02-2019
Publisher: American Chemical Society (ACS)
Date: 11-01-2008
DOI: 10.1021/JP077115A
Publisher: Wiley
Date: 18-12-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA02990B
Abstract: Co–Cu nanoparticles on graphene show superior performances as cathodes for Li–O 2 batteries due to the synergy between bimetallic nanoparticles and graphene.
Publisher: American Chemical Society (ACS)
Date: 11-08-2015
DOI: 10.1021/ACS.INORGCHEM.5B00544
Abstract: Porous Co3O4 hollow tetrahedra were prepared through the thermolysis of metal-organic frameworks and presented reversible capacities of 1196 and 1052 mAh g(-1) at 50 and 200 mA g(-1) after 60 charge/discharge cycles, respectively. Such excellent performances stem from the well-defined hollow structure of Co3O4 tetrahedra.
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1NR10550G
Abstract: Nanomaterials have some disadvantages in application as Li ion battery materials, such as low density, poor electronic conductivity and high risk of surface side reactions. In recent years, materials with core-shell nanostructures, which was initially a common concept in semiconductors, have been introduced to the field of Li ion batteries in order to overcome the disadvantages of nanomaterials, and increase their general performances in Li ion batteries. Many efforts have been made to exploit core-shell Li ion battery materials, including cathode materials, such as lithium transition metal oxides with varied core and shell compositions, and lithium transition metal phosphates with carbon shells and anode materials, such as metals, alloys, Si and transition metal oxides with carbon shells. More recently, graphene has also been proposed as a shell material. All these core-shell nanostructured materials presented enhanced electrochemical capacity and cyclic stability. In this review, we summarize the preparation, electrochemical performances, and structural stability of core-shell nanostructured materials for lithium ion batteries, and we also discuss the problems and prospects of this kind of materials.
Publisher: Wiley
Date: 22-02-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA02584B
Abstract: 3D hierarchical porous N-rich graphitic carbon materials were prepared and further used for symmetric aqueous supercapacitors with battery-level energy density while retaining capacitor-type power density and cycling stability.
Publisher: Elsevier BV
Date: 02-2014
Publisher: American Chemical Society (ACS)
Date: 19-05-2005
DOI: 10.1021/JP050105U
Abstract: Boron nitride (BN) nanotubes were synthesized through chemical vapor deposition over a wafer made by a LaNi5/B mixture and nickel powder at 1473 K. Scanning electron microscopy, transmission electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy were performed to characterize the microstructure and composition of BN nanotubes. It was found that the obtained BN nanotubes were straight with a diameter of 30-50 nm and a length of up to several microns. We first verify that the BN nanotubes can storage hydrogen by means of an electrochemical method, though its capacity is low at present. The hydrogen desorption of nonelectrochemical recombination in cyclic voltammograms, which is considered as the slow reaction at BN nanotubes, suggests the possible existence of strong chemisorption of hydrogen, and it may lead to the lower discharge capacity of BN nanotubes. It is tentatively concluded that the improvement of the electrocatalytic activity by surface modification with metal or alloy would enhance the electrochemical hydrogen storage capacity of BN nanotubes.
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA13233A
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5MH00136F
Abstract: We highlight burgeoning design horizons from materials to electrodes to push energy storage in Li ion batteries to next-generation levels.
Publisher: Wiley
Date: 03-06-2018
Abstract: Layered lithium transition-metal oxides, with large capacity and high discharge platform, are promising cathode materials for Li-ion batteries. However, their high-rate cycling stability still remains a large challenge. Herein, hierarchical LiNi
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA41341A
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3CC47149G
Abstract: In this work, we present a facile sol-gel method to prepare a composite of Co nanoparticles highly dispersed on N-rich carbon substrates (Co-C composite). The assembled Li-O2 batteries with the composite as a cathode catalyst showed lower overpotential and better cyclability, and the improved performance may be attributed to the superior electrocatalytic activity of the Co-C composite.
Publisher: Elsevier BV
Date: 04-2009
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/B925696B
Abstract: Core double-shell Si@SiO(2)@C nanocomposites were prepared through a facile route. SiO(2) and carbon double shells effectively accommodated the volume swing of Si during repeated cycles and enhanced the electronic network between nanoparticles.
Publisher: Wiley
Date: 24-04-2017
Abstract: Ultrathin 2D materials can offer promising opportunities for exploring advanced energy storage systems, with satisfactory electrochemical performance. Engineering atomic interfaces by stacking 2D crystals holds huge potential for tuning material properties at the atomic level, owing to the strong layer-layer interactions, enabling unprecedented physical properties. In this work, atomically thin Bi
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA05205J
Abstract: This study presents P3/P2-type biphasic layered Na 0.66 Co 0.5 Mn 0.5 O 2 by integrating P2 into P3-layered materials, which delivered outstanding electrochemical performance.
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 10-2014
Publisher: Elsevier BV
Date: 2013
Publisher: Elsevier BV
Date: 04-2012
Publisher: Royal Society of Chemistry (RSC)
Date: 13-08-2014
DOI: 10.1039/C4TA03660C
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA40546J
Publisher: Wiley
Date: 18-03-2014
Abstract: Highly dispersed Ni nanoparticles (NPs) and abundant functional N-species were integrated into ultrathin carbon nanosheets by using a facile and economical sol-gel route. Embedded- and anchored-type configurations were achieved for the dispersion of Ni NPs in/on N-rich carbon nanosheets. The anchored-type composite exhibited outstanding pseudocapacitance of 2200 F g(-1) at 5 A g(-1) with unusual rate capability and extraordinary cyclic stability over 20 000 cycles with little capacitance decay. Aqueous asymmetric supercapacitors fabricated with this composite cathode demonstrated a high energy density of 51.3 Wh kg(-1) at a relatively large power density of 421.6 W kg(-1) , along with outstanding cyclic stability. This approach opens an attractive direction for enhancing the electrochemical performances of metal-based supercapacitors and can be generalized to design high-performance energy-storage devices.
Publisher: American Chemical Society (ACS)
Date: 15-10-2013
DOI: 10.1021/AM403453R
Abstract: Rambutan-like FeCO3 hollow microspheres were prepared via a facile and economic one-step hydrothermal method. The structure and morphology evolution mechanism was disclosed through time-dependent experiments. After undergoing the symmetric inside-out Ostwald ripening, the resultants formed microporous/nanoporous constructions composed of numerous one-dimensional (1D) nanofiber building blocks. Tested as anode materials of Li-ion batteries, FeCO3 hollow microspheres presented attractive electrochemical performances. The capacities were over 1000 mAh g(-1) for initial charge, ~880 mAh g(-1) after 100 cycles at 50 mA g(-1), and ~710 mAh g(-1) after 200 cycles at 200 mA g(-1). The 1D nanofiber assembly and hollow interior endow this material efficient contact with electrolyte, short Li(+) diffusion paths, and sufficient void spaces to accommodate large volume variation. The cost-efficient FeCO3 with rationally designed nanostructures is a promising anode candidate for Li-ion batteries.
Start Date: 2017
End Date: 06-2020
Amount: $493,500.00
Funder: Australian Research Council
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