ORCID Profile
0000-0002-3972-8205
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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 | Materials Engineering | Materials Engineering not elsewhere classified | Nanomaterials | Materials engineering | Electrochemistry | Electronic and Magnetic Properties of Condensed Matter; Superconductivity | Functional materials | Composite and hybrid materials |
Energy Storage, Distribution and Supply not elsewhere classified | Energy Storage (excl. Hydrogen) | Energy Transformation not elsewhere classified | Renewable Energy not elsewhere classified | Expanding Knowledge in the Chemical Sciences | Expanding Knowledge in the Physical Sciences | Expanding Knowledge in Technology
Publisher: Elsevier BV
Date: 06-2023
Publisher: Elsevier BV
Date: 10-2019
Publisher: Wiley
Date: 15-01-2018
Publisher: Springer Science and Business Media LLC
Date: 25-01-2018
Publisher: American Scientific Publishers
Date: 05-2013
Abstract: Highly ordered mesoporous Co3O4 nanostructures were prepared using SBA-15 silica as hard templates. The mesoporous structures were characterized by X-ray diffraction, high resolution transmission electron microscopy, and N2 adsorption/desorption isotherm analysis. The results demonstrated that the as-prepared mesoporous Co3O4 has an ordered P6mm symmetric mesoporous structure. The optical absorption properties of the mesoporous Co3O4 were investigatted by UV-Vis spectroscopy and the results indicate that the mesoporous Co3O4 materials are semiconducting with direct band gaps of 2, 1.385 and 0.38 eV. The gas-sensing performance of the mesoporous Co3O4 was tested towards a series of typical solvents. They demonstrated a good sensing performance towards these vapour with rapid response and high sensitivity at low operating temperature.
Publisher: Wiley
Date: 06-06-2021
Abstract: Lithium‐ion batteries, which have revolutionized portable electronics over the past three decades, were eventually recognized with the 2019 Nobel Prize in chemistry. As the energy density of current lithium‐ion batteries is approaching its limit, developing new battery technologies beyond lithium‐ion chemistry is significant for next‐generation high energy storage. Lithium–sulfur (Li–S) batteries, which rely on the reversible redox reactions between lithium and sulfur, appears to be a promising energy storage system to take over from the conventional lithium‐ion batteries for next‐generation energy storage owing to their overwhelming energy density compared to the existing lithium‐ion batteries today. Over the past 60 years, especially the past decade, significant academic and commercial progress has been made on Li–S batteries. From the concept of the sulfur cathode first proposed in the 1960s to the current commercial Li–S batteries used in unmanned aircraft, the story of Li–S batteries is full of breakthroughs and back tracing steps. Herein, the development and advancement of Li–S batteries in terms of sulfur‐based composite cathode design, separator modification, binder improvement, electrolyte optimization, and lithium metal protection is summarized. An outlook on the future directions and prospects for Li–S batteries is also offered.
Publisher: Springer Science and Business Media LLC
Date: 10-11-2022
Publisher: Elsevier BV
Date: 03-2015
Publisher: Elsevier BV
Date: 2014
Publisher: Wiley
Date: 10-03-2020
Publisher: American Scientific Publishers
Date: 06-2012
Abstract: Carbon nanotubes are hexagonally configured carbon atoms in cylindrical structures. Exceptionally high mechanical strength, electrical conductivity, surface area, thermal stability and optical transparency of carbon nanotubes outperformed other known materials in numerous advanced applications. However, their mechanical behaviors under practical loading conditions remain to be demonstrated. This study investigates the critical axial properties of pristine and defected single- and multi-walled carbon nanotubes under axial compression. Molecular dynamics simulation method has been employed to consider the destructive effects of Stone-Wales and atom vacancy defects on mechanical properties of armchair and zigzag carbon nanotubes under compressive loading condition. Armchair carbon nanotube shows higher axial stability than zigzag type. Increase in wall number leads to less susceptibility of multi-walled carbon nanotubes to defects and higher stability of them under axial compression. Atom vacancy defect reveals higher destructive effect than Stone-Wales defect on mechanical properties of carbon nanotubes. Critical axial strain of single-walled carbon nanotube declines by 67% and 26% due to atom vacancy and Stone-Wales defects.
Publisher: Elsevier BV
Date: 02-2012
Publisher: Springer Science and Business Media LLC
Date: 13-04-2012
Publisher: Wiley
Date: 22-01-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4NR07054B
Abstract: Enhanced electron transfer efficiency plays a dominant role for improving the performance of SnO 2 /N-doped graphene for sodium-ion batteries.
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA00031A
Publisher: Wiley
Date: 22-03-2012
Publisher: Elsevier BV
Date: 03-2012
Publisher: Elsevier BV
Date: 04-2015
Publisher: Springer Science and Business Media LLC
Date: 06-2018
Publisher: American Chemical Society (ACS)
Date: 06-06-2023
Publisher: Springer Science and Business Media LLC
Date: 05-2018
DOI: 10.1557/MRE.2018.11
Publisher: Elsevier BV
Date: 12-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA00439A
Abstract: A multifunctional fluorinated polyimide nanofiber separator for high-performance lithium–sulfur batteries.
Publisher: Elsevier BV
Date: 2014
Publisher: American Chemical Society (ACS)
Date: 21-08-2014
DOI: 10.1021/AM5036913
Abstract: Highly porous NiCo2O4 nanoflakes and nanobelts were synthesized by using a hydrothermal technique, followed by calcination of the NiCo2O4 precursors. The as-synthesized materials were analyzed by scanning electron microscopy, X-ray diffraction, transmission electron microscopy, and Brunauer-Emmett-Teller methods. The NiCo2O4 nanoflakes and nanobelts were applied as anode materials for lithium-ion batteries. Owing to the unique porous structural features, the NiCo2O4 nanoflakes and nanobelts exhibited high specific capacities of 1033 and 1056 mA h g(-1), respectively, and good cycling stability and rate capability. These exceptional electrochemical performances could be ascribed to the remarkable structural feature with a high surface area and void spaces within the surface of nanoflakes and nanobelts, which provide large contact areas between electrolyte and active materials for electrolyte diffusion and cushion the volume variation during the lithium-ion insertion/extraction process.
Publisher: Elsevier BV
Date: 08-2014
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3CP52037D
Abstract: Single crystalline SnO2 nanocrystals (~60 nm in size) with a uniform octahedral shape were synthesised using a hydrothermal method. Their phase and morphology were characterized by XRD and FESEM observation. TEM and HRTEM analyses identified that SnO2 octahedral nanocrystals grow along the [001] direction, consisting of dominantly exposed {221} high energy facets. When applied as anode materials for Na-ion batteries, SnO2 nanocrystals exhibited high reversible sodium storage capacity and excellent cyclability (432 mA h g(-1) after 100 cycles). In particular, SnO2 nanocrystals also demonstrated a good high rate performance. Ex situ TEM analysis revealed the reaction mechanism of SnO2 nanocrystals for reversible Na ion storage. It was found that Na ions first insert into SnO2 crystals at the high voltage plateau (from 3 V to ~0.8 V), and that the exposed (1 × 1) tunnel-structure could facilitate the initial insertion of Na ions. Subsequently, Na ions react with SnO2 to form NaxSn alloys and Na2O in the low voltage range (from ~0.8 V to 0.01 V). The superior cyclability of SnO2 nanocrystals could be mainly ascribed to the reversible Na-Sn alloying and de-alloying reactions. Furthermore, the reduced Na2O "matrix" may help retard the aggregation of tin nanocrystals, leading to an enhanced electrochemical performance.
Publisher: Elsevier BV
Date: 10-2018
Publisher: Springer Science and Business Media LLC
Date: 09-05-2012
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3TA15423H
Abstract: 3D mesoporous hybrid NiCo 2 O 4 @graphene nanoarchitectures were successfully synthesized by a combination of freeze drying and hydrothermal reaction.
Publisher: Wiley
Date: 06-2022
Abstract: Rechargeable aqueous batteries are considered to be one of the most effective energy storage technologies to balance the cost‐efficiency, safety, and energy ower demands. The further progress of aqueous batteries with high energy density is needed to meet the ever‐increasing energy‐storage demands. This review highlights the strategies proposed so far to pursue the high energy density aqueous batteries, including the aspects of the electrolytes (from concentrated to dilute), the electrode chemistry (from inserted to converted), the cathode materials (from inorganic to organic), the anode materials (from compound to metallic), and the battery configurations (from integrated to decoupled). Critical appraisals of the emerging electrochemistry are presented for addressing the key issues in boosting the energy densities. Finally, the authors render insights into the future development of high‐energy aqueous batteries.
Publisher: Elsevier BV
Date: 09-2016
Publisher: Wiley
Date: 09-03-2020
Publisher: Elsevier BV
Date: 09-2015
Publisher: Springer Science and Business Media LLC
Date: 2015
DOI: 10.1038/AM.2014.130
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4CC00840E
Abstract: WS2@graphene nanocomposites were synthesized by a hydrothermal approach. When applied as anodes in Na-ion batteries, the WS2@graphene nanocomposite exhibited a high reversible sodium storage capacity of about 590 mA h g(-1). It also demonstrated excellent high rate performance and cyclability.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA05486A
Abstract: Carbon-free, hierarchical Ru nanospheres as a cathode for Li–O 2 batteries can significantly reduce discharge/charge overpotential with a high capacity.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0MA00653J
Abstract: The development of commercial lithium–sulfur (Li–S) batteries is typically restricted by the intrinsic drawbacks of the dissolutiion and shuttling of lithium polysulfides (LPS) and the uncontrollable growth of lithium dendrites.
Publisher: American Chemical Society (ACS)
Date: 29-03-2019
Abstract: Lithium-sulfur (Li-S) batteries have been regarded as one of the most promising candidates for next-generation energy storage owing to their high energy density and low cost. However, the practical deployment of Li-S batteries has been largely impeded by the low conductivity of sulfur, the shuttle effect of polysulfides, and the low areal sulfur loading. Herein, we report the synthesis of uniform Co-Fe mixed metal phosphide (Co-Fe-P) nanocubes with highly interconnected-pore architecture to overcome the main bottlenecks of Li-S batteries. With the highly interconnected-pore architecture, inherently metallic conductivity, and polar characteristic, the Co-Fe-P nanocubes not only offer sufficient electrical contact to the insulating sulfur for high sulfur utilization and fast redox reaction kinetics but also provide abundant adsorption sites for trapping and catalyzing the conversion of lithium polysulfides to suppress the shuttle effect, which is verified by both the comprehensive experiments and density functional theory calculations. As a result, the sulfur-loaded Co-Fe-P (S@Co-Fe-P) nanocubes delivered a high discharge capacity of 1243 mAh g
Publisher: Wiley
Date: 09-2018
Publisher: Elsevier BV
Date: 10-2020
Publisher: Wiley
Date: 12-06-2014
Publisher: IOP Publishing
Date: 11-01-2012
DOI: 10.1088/0957-4484/23/5/055402
Abstract: Hollow structured CoFe₂O₄ nanospheres were synthesized by a hydrothermal method. The uniform hollow nanosphere architecture of the as-prepared CoFe₂O₄ has been confirmed by field emission scanning electron microscopy and transmission electron microscopy analysis, which give an outer diameter of 200-300 nm and a wall thickness of about 100 nm. CoFe₂O₄ nanospheres exhibited a high reversible capacity of 1266 mA h g⁻¹ with an excellent capacity retention of 93.6% over 50 cycles and an improved rate capability. CoFe₂O₄ could be a promising high capacity anode material for lithium ion batteries.
Publisher: Elsevier BV
Date: 11-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9RA03345A
Abstract: Bio-waste Camellia oleifera shells (COS) are converted into porous carbon by a two-step method.
Publisher: Springer Science and Business Media LLC
Date: 06-01-2015
DOI: 10.1038/SREP07629
Publisher: Wiley
Date: 08-12-2014
Publisher: Elsevier BV
Date: 11-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7TA10272K
Abstract: N–Co 3 O 4 @N–C nanododecahedra combine the advantages of strong affinity for polysulfides and excellent electronic conductivity.
Publisher: Wiley
Date: 06-12-2011
Abstract: Polyhedral magnetite nanocrystals with multiple facets were synthesised by a low temperature hydrothermal method. Atomistic simulation and calculations on surface attachment energy successfully predicted the polyhedral structure of magnetite nanocrystals with multiple facets. X-ray diffraction, field emission scanning electron microscopy, and high resolution transmission microscopy confirmed the crystal structure of magnetite, which is consistent with the theoretical modelling. The magnetic property measurements show the superspin glass state of the polyhedral nanocrystals, which could originate from the nanometer size of in idual single crystals. When applied as an anode material in lithium ion cells, magnetite nanocrystals demonstrated an outstanding electrochemical performance with a high lithium storage capacity, a satisfactory cyclability, and an excellent high rate capacity.
Publisher: Elsevier BV
Date: 12-2023
Publisher: Wiley
Date: 10-07-2013
Abstract: Single crystalline rhombus-shaped Na(0.7)MnO2 nanoplates have been synthesized by a hydrothermal method. TEM and HRTEM analyses revealed that the Na(0.7)MnO2 single crystals predominantly exposed their (100) crystal plane, which is active for Na(+)-ion insertion and extraction. When applied as cathode materials for sodium-ion batteries, Na(0.7)MnO2 nanoplates exhibited a high reversible capacity of 163 mA h g(-1), a satisfactory cyclability, and a high rate performance. The enhanced electrochemical performance could be ascribed to the predominantly exposed active (100) facet, which could facilitate fast Na(+)-ion insertion/extraction during the discharge and charge process.
Publisher: American Chemical Society (ACS)
Date: 18-08-2015
Publisher: IOP Publishing
Date: 07-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2JM31214J
Publisher: Elsevier BV
Date: 11-2016
Publisher: Wiley
Date: 08-2020
Publisher: Elsevier BV
Date: 09-2015
Publisher: Wiley
Date: 28-11-2015
Abstract: A mesoporous flake-like manganese-cobalt composite oxide (MnCo2O4) is synthesized successfully through the hydrothermal method. The crystalline phase and morphology of the materials are characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and Brunauer-Emmett-Teller methods. The flake-like MnCo2O4 is evaluated as the anode material for lithium-ion batteries. Owing to its mesoporous nature, it exhibits a high reversible capacity of 1066 mA h g(-1), good rate capability, and superior cycling stability. As an electrode material for supercapacitors, the flake-like MnCo2O4 also demonstrates a high supercapacitance of 1487 F g(-1) at a current density of 1 A g(-1), and an exceptional cycling performance over 2000 charge/discharge cycles.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA00158G
Abstract: We devised CoO nanoparticles wrapped by porous graphene (PGE–CoO) as a noble-metal free electrocatalytic material for efficient oxygen evolution. The highly porous structure and excellent chemical and electronic coupling within the composite material led to the superior OER activity and good stability.
Publisher: Wiley
Date: 14-10-2021
Abstract: Sodium‐ion batteries are promising energy‐storage systems, but they are facing huge challenges for developing fast‐charging anode materials. Bismuth (Bi)‐based anode materials are considered as candidates for fast‐charging anodes of sodium‐ion batteries due to their excellent rate performance. Herein, we designed a two‐dimensional Bi/MXene anode material based on a hydrogen thermal reduction strategy. Benefitting from microstructure advantages, Bi/MXene anodes exhibited an excellent rate capability and superior cycle performance in Na//Bi/MXene half‐batteries and Na 3 V 2 (PO 4 ) 3 /C//Bi/MXene full‐batteries. Moreover, full‐batteries can complete a charge/discharge cycle in 7 min and maintain an excellent cycle life (over 7000 cycles). The electrochemical test results showed that Bi/MXene is a promising anode material with fast charge/discharge capability for sodium‐ion batteries.
Publisher: Springer Science and Business Media LLC
Date: 07-2016
DOI: 10.1038/AM.2016.91
Publisher: Wiley
Date: 18-08-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3EE00770G
Abstract: Illustration of protein-based MEG generating electricity by absorbing water from moisture.
Publisher: Wiley
Date: 07-06-2021
Abstract: We discovered that the 2D Ti 3 C 2 T x MXene sheet displays an ultra‐high removal capability for bilirubin (BR). In particular, MXene shows 47.6 times higher removal efficiency over traditional activated carbon absorbents. The effect of MXene on the removal rate of BR in BR solution containing different concentrations of bovine serum albumin (BSA) was studied. The adsorption capacity of BSA for BR at high concentration of 5 g L −1 was about 85% of the best adsorption capacity. The MXene before and after adsorption was characterized by SEM, FT‐IR and XPS. Furthermore, MXene beads were prepared, and the hemoperfusion simulation experiment was carried out. The results show that the adsorption capacity of MXene for bilirubin can reach 1192.9 mg g −1 . This study suggests that MXene may be promising in the treatment of hyperbilirubinemia.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5CC04229A
Abstract: Hollow polypyrrole nanospheres demonstrated high current rate capacity and superior stable rate capability for Na-ion batteries.
Publisher: Elsevier BV
Date: 11-2015
Publisher: Wiley
Date: 18-04-2017
Abstract: Uniform Na
Publisher: Wiley
Date: 15-05-2012
Abstract: Mesoporous nickel oxide nanowires were synthesized by a hydrothermal reaction and subsequent annealing at 400 °C. The porous one-dimensional nanostructures were analysed by field-emission SEM, high-resolution TEM and N(2) adsorption/desorption isotherm measurements. When applied as the anode material in lithium-ion batteries, the as-prepared mesoporous nickel oxide nanowires demonstrated outstanding electrochemical performance with high lithium storage capacity, satisfactory cyclability and an excellent rate capacity. They also exhibited a high specific capacitance of 348 F g(-1) as electrodes in supercapacitors.
Publisher: Wiley
Date: 24-11-2015
Publisher: Springer Science and Business Media LLC
Date: 05-12-2012
DOI: 10.1038/SREP00924
Publisher: Wiley
Date: 23-06-2017
Abstract: It is shown that Prussian blue analogues (PBAs) can be a very competitive sulfur host for lithium-sulfur (Li-S) batteries. Sulfur stored in the large interstitial sites of a PBA host can take advantage of reversible and efficient insertion/extraction of both Li
Publisher: Wiley
Date: 08-08-2013
Abstract: Nickel oxide nanosheets have been successfully synthesized by a facile ethylene glycol mediated hydrothermal method. The morphology and crystal structure of the nickel oxide nanosheets were characterized by X-ray diffraction, field-emission SEM, and TEM. When applied as electrode materials for lithium-ion batteries and supercapacitors, nickel oxide nanosheets exhibited a high, reversible lithium storage capacity of 1193 mA h g(-1) at a current density of 500 mA g(-1), an enhanced rate capability, and good cycling stability. Nickel oxide nanosheets also demonstrated a superior specific capacitance of 999 F g(-1) at a current density of 20 A g(-1) in supercapacitors.
Publisher: Elsevier BV
Date: 07-2019
Publisher: Wiley
Date: 23-08-2012
Publisher: Elsevier BV
Date: 05-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1GC01376A
Abstract: The article highlights the green synthesis of nanoporous biocarbons and their utilization as adsorbents for CO 2 capture and electrode materials for supercapacitors.
Publisher: Wiley
Date: 16-04-2020
Publisher: IOP Publishing
Date: 16-02-2021
Abstract: Sun, wind and tides have huge potential in providing us electricity in an environmental-friendly way. However, its intermittency and non-dispatchability are major reasons preventing full-scale adoption of renewable energy generation. Energy storage will enable this adoption by enabling a constant and high-quality electricity supply from these systems. But which storage technology should be considered is one of important issues. Nowadays, great effort has been focused on various kinds of batteries to store energy, lithium-related batteries, sodium-related batteries, zinc-related batteries, aluminum-related batteries and so on. Some cathodes can be used for these batteries, such as sulfur, oxygen, layered compounds. In addition, the construction of these batteries can be changed into flexible, flow or solid-state types. There are many challenges in electrode materials, electrolytes and construction of these batteries and research related to the battery systems for energy storage is extremely active. With the myriad of technologies and their associated technological challenges, we were motivated to assemble this 2020 battery technology roadmap.
Publisher: Wiley
Date: 22-10-2014
Abstract: The long-standing challenge associated with capacity fading of spinel LiMn2 O4 cathode material for lithium-ion batteries is investigated. Single-crystalline spinel LiMn2 O4 nanorods were successfully synthesized by a template-engaged method. Porous Mn3 O4 nanorods were used as self-sacrificial templates, into which LiOH was infiltrated by a vacuum-assisted impregnation route. When used as cathode materials for lithium-ion batteries, the spinel LiMn2 O4 nanorods exhibited superior long cycle life owing to the one-dimensional nanorod structure, single-crystallinity, and Li-rich effect. LiMn2 O4 nanorods retained 95.6 % of the initial capacity after 1000 cycles at 3C rate. In particular, the nanorod morphology of the spinel LiMn2 O4 was well-preserved after a long-term cycling, suggesting the ultrahigh structural stability of the single crystalline spinel LiMn2 O4 nanorods. This result shows the promising applications of single-crystalline spinel LiMn2 O4 nanorods as cathode materials for lithium-ion batteries with high rate capability and long cycle life.
Publisher: Wiley
Date: 13-07-2012
Publisher: Wiley
Date: 06-07-2018
Publisher: American Chemical Society (ACS)
Date: 18-10-2016
Abstract: Lithium-sulfur batteries have attracted increasing attention as one of the most promising candidates for next-generation energy storage systems. However, the poor cycling performance and the low utilization of sulfur greatly hinder its practical applications. Here we report the improved performance of lithium-sulfur batteries by coating Ti
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4RA01719F
Abstract: A simple microwave-assisted synthesis of Ni(OH) 2 nanosheets for supercapacitors with high specific capacitance and superior cycling stability.
Publisher: Springer Science and Business Media LLC
Date: 14-06-2019
DOI: 10.1038/S42004-019-0166-8
Abstract: The commercialization of high-energy-density and low-cost lithium-sulfur batteries has been severely impeded by capacity fading and electrochemical polarization. Here we report a strategy to entrap polysulfides and boost the cathodic redox kinetics by embedding the surface oxidized quantum-dot-size TiN (TiN-O) within the highly ordered mesoporous carbon matrix. While the carbon scaffold offers sufficient electrical contact to the insulate sulfur, benefiting the full usage of sulfur and physical confinement of polysulfides. The surface oxygen renders TiN-O with a strong charge polarization effect for polysulfides via S-O-Ti bond as verified experimentally and theoretically. The suppressed shuttle effect and high lithium ion diffusion coefficient (7.9 × 10 −8 cm 2 s −1 ) lead to a high capacity of 1264 mA h g −1 at 0.2 C with a negligible capacity fading rate of 0.06% per cycle. Additionally, TiN-O based prototype soft-package cells also exhibit excellent cycling stability with flexibility, demonstrating their potential for practical applications.
Publisher: Springer Science and Business Media LLC
Date: 06-10-2014
DOI: 10.1038/SREP06519
Publisher: Elsevier BV
Date: 03-2017
Publisher: AIP Publishing
Date: 03-10-2011
DOI: 10.1063/1.3645617
Abstract: We have systematically investigated the diffusion mechanism of Li ions in Li2FeSiO4 and its delithiated product LiFeSiO4 based on the P21 symmetry using the first principle method. Calculations on the energy barriers for possible spatial hopping pathways predicted that the activation barriers along the [101] direction and Li ion layer in the ac plane are relatively low, which can ensure the facile lithium diffusion along those directions. The results indicate that Li2FeSiO4 with the P21 symmetry is an ionic conductor for Li ions with two-dimensional diffusion.
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6TA05878G
Abstract: The combination of the physical adsorption of lithium polysulfides onto porous graphene and the chemical binding of polysulfides to N and S sites promotes reversible Li 2 S olysulfide/S conversion, realizing high performance Li–S batteries with long cycle life and high-energy density.
Publisher: Wiley
Date: 29-11-2017
Publisher: Elsevier BV
Date: 12-2013
Publisher: American Chemical Society (ACS)
Date: 14-11-2013
DOI: 10.1021/NN405014D
Abstract: Single-crystalline bilayered vanadium oxide nanobelts were synthesized by a simple solvothermal method. FESEM and AFM analyses identified the nanobelt morphology of the as-prepared vanadium oxide with a rectangular cross-section and a thickness of approximately 50 nm. XRD and TEM characterizations revealed the presence of a large (001) interlayer spacing (∼11.53 Å), which can accommodate Na-ion insertion and extraction. When applied as cathode materials in Na-ion batteries, vanadium oxide nanobelts exhibited a high capacity of 231.4 mA h g(-1) at a current density of 80 mA g(-1). This corresponds to the theoretical capacity to form Na2V2O5 on Na-ion insertion. Vanadium oxide nanobelts also demonstrated an excellent high-rate performance and a satisfactory cyclability. These superior electrochemical performances could be ascribed to the unique bilayered vanadium oxide nanobelts with dominantly exposed {100} crystal planes, which provide large interlayer spacing for facile Na-ion insertion/extraction. Single-crystalline bilayered vanadium oxide nanobelts could be promising cathode materials for high-performance Na-ion batteries.
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4TA01751J
Publisher: Wiley
Date: 17-06-2020
Publisher: Elsevier BV
Date: 09-2013
Publisher: Institute of Physics, Polish Academy of Sciences
Date: 02-2013
Publisher: Elsevier BV
Date: 04-2013
Publisher: Elsevier BV
Date: 09-2014
DOI: 10.1016/J.CHROMA.2014.07.052
Abstract: Single-walled carbon nanotubes were encapsulated into different polymer-based monolithic backbones. The polymer monoliths were prepared via the copolymerization of 20% monomers, glycidyl methacrylate, 20% ethylene glycol dimethacrylate and 60% porogens (36% 1-propanol, 18% 1,4-butanediol) or 16.4% monomers (16% butyl methacrylate, 0.4% sulfopropyl methacrylate), 23.6% ethylene glycol dimethacrylate and 60% porogens (36% 1-propanol, 18% 1,4-butanediol) along with 6% single-walled carbon nanotubes aqueous suspension. The effect of single-walled carbon nanotubes on the chiral separation of twelve classes of pharmaceutical racemates namely α- and β-blockers, antiinflammatory drugs, antifungal drugs, dopamine antagonists, norepinephrine-dopamine reuptake inhibitors, catecholamines, sedative hypnotics, diuretics, antihistaminics, anticancer drugs and antiarrhythmic drugs was investigated. The enantioselective separation was carried out under multimodal elution to explore the chiral recognition capabilities of single-walled carbon nanotubes using reversed phase, polar organic and normal phase chromatographic conditions using nano-liquid chromatography. Baseline separation was achieved for celiprolol, chlorpheniramine, etozoline, nomifensine and sulconazole under multimodal elution conditions. Satisfactory repeatability was achieved through run-to-run, column-to-column and batch-to-batch investigations. Our findings demonstrate that single-walled carbon nanotubes represent a promising stationary phase for the chiral separation and may open the field for a new class of chiral selectors.
Publisher: Wiley
Date: 24-03-2018
Publisher: Wiley
Date: 17-06-2020
Publisher: Wiley
Date: 04-11-2015
Abstract: A facile microwave method was employed to synthesize NiCo2 O4 nanosheets as electrode materials for lithium-ion batteries and supercapacitors. The structure and morphology of the materials were characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy and Brunauer-Emmett-Teller methods. Owing to the porous nanosheet structure, the NiCo2 O4 electrodes exhibited a high reversible capacity of 891 mA h g(-1) at a current density of 100 mA g(-1) , good rate capability and stable cycling performance. When used as electrode materials for supercapacitors, NiCo2 O4 nanosheets demonstrated a specific capacitance of 400 F g(-1) at a current density of 20 A g(-1) and superior cycling stability over 5000 cycles. The excellent electrochemical performance could be ascribed to the thin porous structure of the nanosheets, which provides a high specific surface area to increase the electrode-electrolyte contact area and facilitate rapid ion transport.
Publisher: Engineering and Technology Publishing
Date: 2014
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3CC40448J
Abstract: An in situ hydrothermal synthesis approach has been developed to prepare SnO2@graphene nanocomposites. The nanocomposites exhibited a high reversible sodium storage capacity of above 700 mA h g(-1) and excellent cyclability for Na-ion batteries. In particular, they also demonstrated a good high rate capability for reversible sodium storage.
Publisher: Wiley
Date: 11-03-2016
Publisher: Elsevier BV
Date: 11-2020
Publisher: American Chemical Society (ACS)
Date: 19-02-2015
DOI: 10.1021/SC500806S
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8TA11646F
Abstract: WO 3 /graphene composite minimizes the polysulfide dissolution problem in the lithium–sulfur (Li–S) battery systems while exhibiting an excellent battery performance.
Publisher: Elsevier BV
Date: 12-2013
Publisher: Elsevier BV
Date: 09-2018
Publisher: Wiley
Date: 12-02-2014
Abstract: Mesoporous SnO microspheres were synthesised by a hydrothermal method using NaSO4 as the morphology directing agent. Field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) analyses showed that SnO microspheres consist of nanosheets with a thickness of about 20 nm. Each nanosheet contains a mesoporous structure with a pore size of approximately 5 nm. When applied as anode materials in Na-ion batteries, SnO microspheres exhibited high reversible sodium storage capacity, good cyclability and a satisfactory high rate performance. Through ex situ XRD analysis, it was found that Na(+) ions first insert themselves into SnO crystals, and then react with SnO to generate crystalline Sn, followed by Na-Sn alloying with the formation of crystalline NaSn2 phase. During the charge process, there are two slopes corresponding to the de-alloying of Na-Sn compounds and oxidisation of Sn, respectively. The high sodium storage capacity and good electrochemical performance could be ascribed to the unique hierarchical mesoporous architecture of SnO microspheres.
Publisher: Springer Science and Business Media LLC
Date: 23-04-2014
Publisher: Wiley
Date: 26-10-2016
Abstract: A potassium iron (II) hexacyanoferrate nanocube cathode material is reported, which operates with an aqueous electrolyte to deliver exceptionally high capacities (up to 120 mA h g
Publisher: Springer Science and Business Media LLC
Date: 11-2013
DOI: 10.1038/AM.2013.56
Publisher: Wiley
Date: 11-04-2014
Abstract: Na-ion batteries have been attracting intensive investigations as a possible alternative to Li-ion batteries. Herein, we report the synthesis of SnS2 nanoplatelet@graphene nanocomposites by using a morphology-controlled hydrothermal method. The as-prepared SnS2/graphene nanocomposites present a unique two-dimensional platelet-on-sheet nanoarchitecture, which has been identified by scanning and transmission electron microscopy. When applied as the anode material for Na-ion batteries, the SnS2/graphene nanosheets achieved a high reversible specific sodium-ion storage capacity of 725 mA h g(-1), stable cyclability, and an enhanced high-rate capability. The improved electrochemical performance for reversible sodium-ion storage could be ascribed to the synergistic effects of the SnS2 nanoplatelet/graphene nanosheets as an integrated hybrid nanoarchitecture, in which the graphene nanosheets provide electronic conductivity and cushion for the active SnS2 nanoplatelets during Na-ion insertion and extraction processes.
Publisher: Wiley
Date: 30-03-2015
Abstract: We report the synthesis of hierarchical vanadium pentoxide (V2 O5 ) spheres as anode materials for sodium-ion batteries (Na-ion batteries). Through field emission scanning electron microscopy, X-ray diffraction, and transmission electron microscopy characterizations, it was found that the as-prepared V2 O5 spheres are composed of primary nanoparticles with pores between them. The as-prepared hierarchical V2 O5 spheres achieved a discharge capacity of 271 mA h g(-1) at a current density of 40 mA g(-1) , and 177 mA h g(-1) discharge capacity after 100 cycles. Even at high current densities, V2 O5 spheres still delivered high capacity and superior cyclability (179 and 140 mA h g(-1) discharge capacities at 640 and 1280 mA g(-1) current densities, respectively). The promising electrochemical performances of V2 O5 spheres should be ascribed to the unique architecture of hierarchical spheres and the predominant exposed (110) facets, which provides open interlayers for facile sodium ion intercalation. Each nanoparticle contains predominantly exposed (110) crystal planes. The ex situ FESEM analysis revealed that the pores formed by the primary nanocrystals effectively buffer volume changes in the electrode during cycling, contributing to the excellent cycling performance.
Publisher: Wiley
Date: 31-10-2016
Publisher: Wiley
Date: 21-12-2016
Publisher: Wiley
Date: 08-2019
Publisher: Springer Science and Business Media LLC
Date: 29-08-2014
DOI: 10.1038/SREP05753
Publisher: Wiley
Date: 04-07-2019
Publisher: Wiley
Date: 21-05-2012
Publisher: Wiley
Date: 23-06-2020
Publisher: Wiley
Date: 27-03-2012
Abstract: Sulfur/graphene nanocomposite material has been prepared by incorporating sulfur into the graphene frameworks through a melting process. Field-emission scanning electron microscope analysis shows a homogeneous distribution of sulfur in the graphene nanosheet matrix. The sulfur/graphene nanocomposite exhibits a super-high lithium-storage capacity of 1580 mA h g(-1) and a satisfactory cycling performance in lithium-sulfur cells. The enhancement of the reversible capacity and cycle life could be attributed to the flexible graphene nanosheet matrix, which acts as a conducting medium and a physical buffer to cushion the volume change of sulfur during the lithiation and delithiation process. Graphene-based nanocomposites can significantly improve the electrochemical performance of lithium-sulfur batteries.
Publisher: Wiley
Date: 04-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3TA05278H
Publisher: Elsevier BV
Date: 05-2018
Publisher: American Association for the Advancement of Science (AAAS)
Date: 14-08-2020
Abstract: Visible-light photocatalytic hydrogen is optimized using the synergistic effect of single atoms with their coordinating element.
Publisher: American Chemical Society (ACS)
Date: 30-01-2018
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 12-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2JM33992G
Publisher: Springer Science and Business Media LLC
Date: 22-05-2023
Publisher: Elsevier BV
Date: 02-2013
Publisher: Wiley
Date: 13-02-2018
Abstract: Porous materials have many structural advantages for energy storage and conversion devices such as rechargeable batteries, supercapacitors, and fuel cells. When applied as a host material in lithium-sulfur batteries, porous silica materials with a pomegranate-like architecture can not only act as a buffer matrix for accommodating a large volume change of sulfur, but also suppress the polysulfide shuttle effect. The porous silica/sulfur composite cathodes exhibit excellent electrochemical performances including a high specific capacity of 1450 mA h g
Publisher: Wiley
Date: 16-08-2017
Abstract: Three-dimensional metal carbide MXene/reduced graphene oxide hybrid nanosheets are prepared and applied as a cathode host material for lithium-sulfur batteries. The composite cathodes are obtained through a facile and effective two-step liquid-phase impregnation method. Owing to the unique 3 D layer structure and functional 2 D surfaces of MXene and reduced graphene oxide nanosheets for effective trapping of sulfur and lithium polysulfides, the MXene/reduced graphene oxide/sulfur composite cathodes deliver a high initial capacity of 1144.2 mAh g
Publisher: Springer Science and Business Media LLC
Date: 29-08-2014
DOI: 10.1038/SREP05767
Publisher: Elsevier BV
Date: 02-2012
Publisher: Elsevier BV
Date: 04-2014
Publisher: Elsevier BV
Date: 05-2018
No related organisations have been discovered for dawei su.
Start Date: 05-2017
End Date: 10-2020
Amount: $349,208.00
Funder: Australian Research Council
View Funded ActivityStart Date: 05-2017
End Date: 12-2020
Amount: $410,500.00
Funder: Australian Research Council
View Funded ActivityStart Date: 02-2023
End Date: 02-2026
Amount: $516,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 2018
End Date: 03-2020
Amount: $832,648.00
Funder: Australian Research Council
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