ORCID Profile
0000-0003-0266-9472
Current Organisation
University of Technology Sydney
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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 | Electrochemistry | Composite and Hybrid Materials | Nanomaterials | Materials engineering | Electrochemistry | Metals and Alloy Materials | Nanoscale Characterisation | Electronic and Magnetic Properties of Condensed Matter; Superconductivity | Functional materials | Composite and hybrid materials
Energy Storage (excl. Hydrogen) | Renewable Energy not elsewhere classified | Energy Conservation and Efficiency in Transport | Expanding Knowledge in the Chemical Sciences | Expanding Knowledge in Technology | Energy Storage, Distribution and Supply not elsewhere classified | Expanding Knowledge in the Physical Sciences | Structural Metal Products | Expanding Knowledge in Engineering |
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C1CC16341H
Abstract: Highly ordered mesoporous Cr(2)O(3) materials with high specific surface area and narrow pore size distribution were successfully prepared by a vacuum assisted impregnation method. Both 2-dimensional hexagonal and 3-dimensional cubic Cr(2)O(3) mesoporous replicas from SBA-15 and KIT-6 templates exhibit enhanced performance for gas sensors and lithium ion batteries, compared to the bulk Cr(2)O(3) counterpart.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0TA10515E
Abstract: A novel Janus Fe 3 C/N-CNF@RGO electrode was successfully constructed, which realizes the co-existence of chemical immobilization, catalytic ability, and physical barrier in 3D conductive networks, enabling robust cycling stability of Li–S battery
Publisher: Elsevier BV
Date: 03-2022
Publisher: American Chemical Society (ACS)
Date: 04-04-2022
Abstract: As a promising energy-storage and conversion anode material for high-power sodium-ion batteries operated at room temperature, the practical application of layered molybdenum disulfide (MoS
Publisher: Springer Science and Business Media LLC
Date: 18-12-2008
Publisher: Springer Science and Business Media LLC
Date: 06-2004
Publisher: Elsevier BV
Date: 02-2009
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: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA04798H
Abstract: A feasible strategy was explored to achieve atomically dispersed Fe–N x sites anchoring on porous carbon hybrid (Fe-SA/PC). The catalyst possessed excellent catalytic activity, high stability and methanol-tolerance toward ORR in alkaline solution.
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8QM00232K
Abstract: A novel lithium-ion hybrid capacitor was assembled based on an aerogel-like Ti 3 C 2 T x @Fe 2 O 3 anode and a 3-D dual-doped porous carbon cathode.
Publisher: Elsevier BV
Date: 12-2008
Publisher: Wiley
Date: 04-11-2013
Publisher: Elsevier BV
Date: 02-2022
Publisher: Elsevier BV
Date: 09-2006
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4TA03877K
Abstract: Multi-shelled hollow carbon nanospheres with a high specific surface area of 1050 m 2 g −1 were prepared by an aqueous emulsion approach, which achieved a high percentage of sulfur loading (86 wt%). When applied as cathodes in lithium–sulfur batteries, the composites delivered a high specific capacity of 1350 mA h g −1 at a current rate of 0.1 C, significantly enhanced cyclability and high rate performance.
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2CC03297J
Abstract: A free-standing multilayer book-like organic based electrode was prepared, presenting high conductivity and excellent flexibility, thereby achieving outstanding performance for flexible lithium-ion batteries and sodium-ion batteries.
Publisher: Wiley
Date: 14-09-2010
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D1QM01369F
Abstract: A 2D heterostructure with dense SnS 2 nanoplates vertically anchored on a graphene aerogel (SnS 2 @GA) was achieved via a controlled self-assembly process followed by a thermally induced sulfidation treatment for high-performance sodium-ion batteries.
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0JM03132A
Publisher: Elsevier BV
Date: 12-2018
Publisher: Elsevier BV
Date: 02-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1SC00716E
Abstract: Single-atom catalysts are reviewed, aiming to achieve optimized properties to boost electrochemical performances of high-energy batteries.
Publisher: Wiley
Date: 29-01-2014
Publisher: Springer Science and Business Media LLC
Date: 06-10-2020
DOI: 10.1038/S41467-020-18820-Y
Abstract: Selenium cathodes have attracted considerable attention due to high electronic conductivity and volumetric capacity comparable to sulphur cathodes. However, practical development of lithium-selenium batteries has been hindered by the low selenium reaction activity with lithium, high volume changes and rapid capacity fading caused by the shuttle effect of polyselenides. Recently, single atom catalysts have attracted extensive interests in electrochemical energy conversion and storage because of unique electronic and structural properties, maximum atom-utilization efficiency, and outstanding catalytic performances. In this work, we developed a facile route to synthesize cobalt single atoms/nitrogen-doped hollow porous carbon (Co SA -HC). The cobalt single atoms can activate selenium reactivity and immobilize selenium and polyselenides. The as-prepared selenium-carbon (Se@Co SA -HC) cathodes deliver a high discharge capacity, a superior rate capability, and excellent cycling stability with a Coulombic efficiency of ~100%. This work could open an avenue for achieving long cycle life and high-power lithium-selenium batteries.
Publisher: Elsevier BV
Date: 02-2009
Publisher: Springer Science and Business Media LLC
Date: 28-02-2014
Publisher: Wiley
Date: 09-2022
Abstract: The application of renewable energy conversion devices is considered as one of the effective ways to alleviate the energy shortage and environmental pollution. Designing electrocatalysts with excellent performance and affordable price is promising to accelerate the reaction process and large‐scale application. At present, ruthenium (Ru)‐based nanomaterials have shown similar catalytic activity but superior price demand compared to commercial Pt/C. This undoubtedly makes Ru‐based nanomaterials a perfect candidate to replace advanced Pt catalysts. Significant progress is made in the rational design of Ru‐based electrocatalysts, but an in‐depth understanding of the engineering strategies and induced effects is still at an early stage. This review summarizes the modification strategies for enhancing the catalytic activity of Ru, including surface structure, metal element, nonmetal element, size, bimetallic oxides, and heterostructure engineering strategies. Then the induced electronic modulation effects generated by the intramolecular and intermolecular of the Ru‐based nanomaterials are elucidated. Further, the application progress of engineered Ru‐based nanomaterials for hydrogen and oxygen conversion reactions is highlighted, and the correlations of engineering strategies, catalytic activity, and reaction pathways are elaborated. Finally, challenges and prospects are presented for the future development and practical application of Ru‐based nanomaterials.
Publisher: Wiley
Date: 23-10-2015
Publisher: Wiley
Date: 19-07-2022
Abstract: Single‐atom catalysts (SACs) have attracted tremendous research interest due to their unique atomic structure, maximized atom utilization, and remarkable catalytic performance. Among the SACs, the carbon‐supported SACs have been widely investigated due to their easily controlled properties of the carbon substrates, such as the tunable morphologies, ordered porosity, and abundant anchoring sites. The electrochemical performance of carbon‐supported SACs is highly related to the morphological structure of carbon substrates (macro‐environment) and the local coordination environments of center metals (micro‐environment). This review aims to provide a comprehensive summary on the macro/micro‐environment regulating carbon‐supported SACs for highly efficient hydrogen/oxygen conversion reactions. The authors first summarize the macro‐environment engineering strategies of carbon‐supported SACs with altered specific surface areas and porous properties of the carbon substrates, facilitating the mass diffusion kinetics and structural stability. Then the micro‐environment engineering strategies of carbon‐supported SACs are discussed with the regulated atomic structure and electronic structure of metal centers, boosting the catalytic performance. Insights into the correlation between the co‐boosted effect from the macro/micro‐environments and catalytic activity for hydrogen/oxygen conversion reactions are summarized and discussed. Finally, the challenges and perspectives are addressed in building highly efficient carbon‐supported SACs for practical applications.
Publisher: Elsevier BV
Date: 09-2005
Publisher: Elsevier BV
Date: 10-2006
Publisher: Wiley
Date: 15-01-2022
Abstract: Mn‐based layered transition metal oxides (TMOs) are promising cathodes for sodium ion batteries (SIBs) due to their eco‐friendly character and abundant natural reserves. However, the complex phase changes and structural instability of the Mn‐based layered TMO cathodes during electrochemical process are major hindrances to meet the commercial application. Cation substitution is an effective way to stabilize the structure and accelerate the Na + kinetics of cathode materials. Herein, an intriguing layered P2‐type Mn‐based Na 0.7 Li 0.06 Zn 0.06 Ni 0.21 Mn 0.67 O 2 material is reported by substitution of Li and Zn for partial Ni. The occupation of inert elements on Ni sites could well maintain the crystal structure, giving rise to a prominent cycle life and improved electrochemical kinetics. The as‐prepared electrode presents an initial discharge capacity of 131.8 mA h g −1 at 20 mA g −1 and preserves 91.9% capacity after 100 cycles, accompanied with enexcellent rate performance (108 mA h g −1 at 500 mA g −1 ). Furthermore, the single‐phase reaction mechanism during the sodiation/desodiation process is verified by in situ X‐ray diffraction. Additionally, theory computations prove the decreased migration energy barriers and enhanced Na + kinetics ulteriorly. This dual‐doping strategy inspires an effective way to produce high performance cathode materials for SIBs.
Publisher: Wiley
Date: 12-06-2023
Abstract: Rational design and development of highly efficient hydrogen evolution reaction (HER) electrocatalysts is of great significance for the development of green water electrolysis hydrogen production technology. Ru‐engineered 1D PtCo‐Pt rich nanowires (Ru‐Pt rich Co NWs) are fabricated by a facile electrodeposition method. The rich Pt surface on 1D Pt 3 Co contributes to the fully exposed active sites and enhanced intrinsic catalytic activity (co‐engineered by Ru and Co atoms) for HER. The incorporation of Ru atoms can not only accelerate the water dissociation in alkaline condition to provide sufficient H * but also modulate the electronic structure of Pt to achieve optimized H * adsorption energy. As a result, Ru‐Pt rich Co NWs have exhibited ultralow HER overpotentials ( η ) of 8 and 112 mV to achieve current densities of 10 and 100 mA cm −2 in 1 m KOH, respectively, which far exceed those of commercial Pt/C catalyst ( η 10 = 29 mV, η 100 = 206 mV). Density functional theory (DFT) calculations further demonstrate that the incorporated Ru atoms possess strong water adsorption capacity (−0.52 vs −0.12 eV for Pt), facilitating water dissociation. The Pt atoms in the outermost Pt‐rich skin of Ru‐Pt rich Co NWs achieve optimized H * adsorption free energy (ΔG H* ) of −0.08 eV, boosting hydrogen generation.
Publisher: Wiley
Date: 29-09-2015
Publisher: Elsevier BV
Date: 2006
Publisher: Wiley
Date: 05-08-2010
Publisher: Elsevier BV
Date: 05-2009
Publisher: Springer Science and Business Media LLC
Date: 31-05-2014
Publisher: American Chemical Society (ACS)
Date: 09-03-2020
Publisher: American Chemical Society (ACS)
Date: 02-10-2015
DOI: 10.1021/JACS.5B08743
Abstract: Rational design and controllable synthesis of TiO2 based materials with unique microstructure, high reactivity, and excellent electrochemical performance for lithium ion batteries are crucially desired. In this paper, we developed a versatile route to synthesize hollow TiO2/graphitic carbon (H-TiO2/GC) spheres with superior electrochemical performance. The as-prepared mesoporous H-TiO2/GC hollow spheres present a high specific surface area (298 m(2) g(-1)), a high pore volume (0.31 cm(3) g(-1)), a large pore size (∼5 nm), well-defined hollow structure (monodispersed size of 600 nm and inner diameter of ∼400 nm, shell thickness of 100 nm), and small nanocrystals of anatase TiO2 (∼8 nm) conformably encapsulated in ultrathin graphitic carbon layers. As a result, the H-TiO2/GC hollow spheres achieve excellent electrochemical reactivity and stability as an anode material for lithium ion batteries. A high specific capacity of 137 mAh g(-1) can be achieved up to 1000 cycles at a current density of 1 A g(-1) (5 C). We believe that the mesoporous H-TiO2/GC hollow spheres are expected to be applied as a high-performance electrode material for next generation lithium ion batteries.
Publisher: American Chemical Society (ACS)
Date: 06-12-2019
Publisher: Elsevier BV
Date: 06-2021
Publisher: Elsevier BV
Date: 07-2008
Publisher: American Chemical Society (ACS)
Date: 19-08-2019
Abstract: Electrode materials that act through the electrochemical conversion mechanism, such as metal selenides, have been considered as promising anode candidates for lithium-ion batteries (LIBs), although their fast capacity attenuation and inadequate electrical conductivity are impeding their practical application. In this work, these issues are addressed through the efficient fabrication of MnSe nanoparticles inside porous carbon hierarchical architectures for evaluation as anode materials for LIBs. Density functional theory simulations indicate that there is a completely irreversible phase transformation during the initial cycle, and the high structural reversibility of β-MnSe provides a low energy barrier for the diffusion of lithium ions. Electron localization function calculations demonstrate that the phase transformation leads to high charge transfer kinetics and a favorable lithium ion diffusion coefficient. Benefitting from the phase transformation and unique structural engineering, the MnSe/C chestnut-like structures with boosted conductivity deliver enhanced lithium storage performance (885 mA h g
Publisher: American Chemical Society (ACS)
Date: 19-01-2022
DOI: 10.1021/ACS.NANOLETT.1C04389
Abstract: Rationally electronic structure engineering of nanocomposite electrodes shows great promise for enhancing the electrochemical performance of rechargeable batteries. Herein, we report antimony single atoms and quantum dots (∼5 nm) codecorated Ti
Publisher: Springer Science and Business Media LLC
Date: 17-05-2021
DOI: 10.1038/S41467-021-23209-6
Abstract: Rechargeable multivalent metal ( e.g ., Ca, Mg or, Al) batteries are ideal candidates for large–scale electrochemical energy storage due to their intrinsic low cost. However, their practical application is h ered by the low electrochemical reversibility, dendrite growth at the metal anodes, sluggish multivalent–ion kinetics in metal oxide cathodes and, poor electrode compatibility with non–aqueous organic–based electrolytes. To circumvent these issues, here we report various aqueous multivalent–ion batteries comprising of concentrated aqueous gel electrolytes, sulfur–containing anodes and, high-voltage metal oxide cathodes as alternative systems to the non–aqueous multivalent metal batteries. This rationally designed aqueous battery chemistry enables satisfactory specific energy, favorable reversibility and improved safety. As a demonstration model, we report a room–temperature calcium-ion/sulfur| |metal oxide full cell with a specific energy of 110 Wh kg –1 and remarkable cycling stability. Molecular dynamics modeling and experimental investigations reveal that the side reactions could be significantly restrained through the suppressed water activity and formation of a protective inorganic solid electrolyte interphase. The unique redox chemistry of the multivalent–ion system is also demonstrated for aqueous magnesium–ion/sulfur||metal oxide and aluminum–ion/sulfur||metal oxide full cells.
Publisher: Elsevier BV
Date: 05-2006
Publisher: Wiley
Date: 28-03-2023
Abstract: The construction of hollow nanostructure by compositing with carbonaceous materials is generally considered an effective strategy to mitigate the drastic volume expansion of transition metal sulfides (TMSs) with high theoretical specific capacity in the process of lithium storage. However, designing well‐controlled architectures with extended lithiation cyclic stability, and ease the expansion of the electroactive materials into the reserved hollow spaces still needs to be developed. Herein, using MnS as an ex le, the hollow double‐shell carbon‐coated TMSs architecture is designed to achieve the controllable operation of shell thickness to regulate interfacial stress. The functional architecture enables the high‐capacity MnS to reach reversible capacities and extended lithiation cycling stability at high current densities. In situ transmission electron microscopy, optical observation characterizations and finite elements are used to analyze the nanoconfined expansion behavior of hollow MnS@C anodes. The as‐designed hollow structure with a carbon shell thickness ≈12.5 nm can effectively restrict the drastic expansion of MnS nanoshell into inner voids with compressive stress. This study demonstrates a general strategy to design functional carbon coating metal sulfides with tailored interfacial stress.
Publisher: American Chemical Society (ACS)
Date: 05-11-2020
Publisher: Elsevier BV
Date: 11-2022
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4TA01544D
Abstract: An investigation reveals the advantage of the hollow structure for high power lithium storage.
Publisher: Elsevier BV
Date: 09-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2TA06256A
Abstract: As the anode of sodium ion batteries, Bi dots in situ embedded in a 3D porous carbon matrix (Bi@MC) enables high ICE (88.13%) and long cycle life with 100% capacity retention at 2.5 A g −1 .
Publisher: American Scientific Publishers
Date: 04-2010
DOI: 10.1166/SL.2010.1256
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA05936A
Abstract: Fe 3 C based catalysts are found to be one of the most promising electrocatalysts for the oxygen evolution reaction (OER).
Publisher: Elsevier BV
Date: 11-2009
Publisher: Wiley
Date: 09-05-2019
Publisher: Wiley
Date: 08-05-2023
DOI: 10.1002/SMM2.1211
Publisher: Springer Science and Business Media LLC
Date: 04-12-2008
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA04800B
Abstract: Novel ultrathin hollow carbon spheres with a nonporous shell are employed as polysulfide reservoirs to improve the overall performance of Li-S batteries.
Publisher: The Electrochemical Society
Date: 2006
DOI: 10.1149/1.2349490
Publisher: Springer Science and Business Media LLC
Date: 13-06-2012
Publisher: Elsevier BV
Date: 05-2022
Publisher: Elsevier BV
Date: 09-2006
Publisher: Wiley
Date: 10-06-2015
Publisher: Wiley
Date: 30-05-2018
Abstract: Rational design and controllable synthesis of nanostructured materials with unique microstructure and excellent electrochemical performance for energy storage are crucially desired. In this paper, a facile method is reported for general synthesis of hierarchically core-shell structured Ni
Publisher: Elsevier BV
Date: 03-2015
Publisher: American Chemical Society (ACS)
Date: 22-05-2019
Publisher: Elsevier BV
Date: 2008
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1QM00179E
Abstract: We summarized the recent progress of cathode materials used for SIBs and modified strategies, expecting to give an inspiration for the development of high-performance cathode materials.
Publisher: American Chemical Society (ACS)
Date: 05-2008
DOI: 10.1021/JP710931H
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2NR06096E
Abstract: Developing efficient and robust catalysts to replace Pt group metals for the oxygen reduction reaction (ORR) is conducive to achieving highly efficient energy conversion.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2CS00698G
Abstract: This review summarizes engineering strategies to modify MXene-based catalysts and their active site identification for applications in electrochemical conversion reactions.
Publisher: Springer Science and Business Media LLC
Date: 06-01-2015
DOI: 10.1038/SREP07629
Publisher: Wiley
Date: 21-05-2012
Publisher: Springer Science and Business Media LLC
Date: 28-10-2020
DOI: 10.1038/S41467-020-19525-Y
Abstract: An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Publisher: American Chemical Society (ACS)
Date: 05-01-2021
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0JM04412A
Publisher: Elsevier BV
Date: 11-2009
Publisher: Research Square Platform LLC
Date: 18-01-2021
DOI: 10.21203/RS.3.RS-140085/V1
Abstract: Non–aqueous rechargeable multivalent metal (Ca, Mg, Al, etc. ) batteries are promising for large–scale energy storage due to their low cost. However, their practical applications face formidable challenges owing to low electrochemical reversibility and dendrite growth of multivalent metal anodes, sluggish kinetics of multivalent ion in metal oxide cathodes, and poor electrode compatibility of flammable organic electrolytes. To overcome these intrinsic hurdles, we develop aqueous multivalent ion batteries to replace the prevailing non–aqueous multivalent metal batteries by using wide–window super–concentrated aqueous gel electrolytes, the versatile high–capacity sulfur anodes, and high–voltage metal oxide cathodes. This rationally designed aqueous battery chemistry enables the long–lasting multivalent ion batteries featured with increased high energy density, reversibility and safety. As a demonstration model, a calcium ion−sulfur||metal oxide full cell exhibited a high energy density of 110 Wh kg –1 with outstanding cycling stability. Molecular dynamics modelling and experimental investigations revealed that the side reactions could be significantly restrained through the suppressed water activity and formation of protective inorganic solid electrolyte interphase in the aqueous gel electrolyte. The unique redox chemistry has also been successfully extended to aqueous magnesium ion and aluminum ion−sulfur||metal oxide batteries. This work will boost aqueous multivalent ion batteries for low−cost large–scale energy storage.
Publisher: American Chemical Society (ACS)
Date: 20-02-2009
DOI: 10.1021/JP8106149
Publisher: Wiley
Date: 10-07-2021
Abstract: 2D MXene-based nanomaterials have attracted tremendous attention because of their unique physical/chemical properties and wide range of applications in energy storage, catalysis, electronics, optoelectronics, and photonics. However, MXenes and their derivatives have many inherent limitations in terms of energy storage applications. In order to further improve their performance for practical application, the nanoengineering of these 2D materials is extensively investigated. In this Review, the latest research and progress on 2D MXene-based nanostructures is introduced and discussed, focusing on their preparation methods, properties, and applications for energy storage such as lithium-ion batteries, sodium-ion batteries, lithium-sulfur batteries, and supercapacitors. Finally, the critical challenges and perspectives required to be addressed for the future development of these 2D MXene-based materials for energy storage applications are presented.
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2JM33992G
Publisher: Wiley
Date: 12-05-2017
Publisher: IOP Publishing
Date: 21-02-2008
DOI: 10.1088/0957-4484/19/12/125606
Abstract: Monodisperse α-Fe(2)O(3) porous nanospheres with uniform shape and size have been synthesized via a facile template-free route. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), and Raman spectroscopy were employed to characterize the product, showing the high quality of the as-prepared α-Fe(2)O(3) porous nanospheres. Furthermore, the α-Fe(2)O(3) porous nanospheres can selectively detect ethanol, formaldehyde and acetic acid, with a rapid response and high sensitivity, from a series of flammable and toxic/corrosive gases, indicating their potential applications for high sensitivity gas sensors.
Publisher: Elsevier BV
Date: 02-2006
Publisher: Springer Science and Business Media LLC
Date: 18-02-2023
DOI: 10.1038/S41467-023-36622-W
Abstract: Rechargeable halide-ion batteries (HIBs) are good candidates for large-scale due to their appealing energy density, low cost, and dendrite-free features. However, state-of-the-art electrolytes limit the HIBs’ performance and cycle life. Here, via experimental measurements and modelling approach, we demonstrate that the dissolutions in the electrolyte of transition metal and elemental halogen from the positive electrode and discharge products from the negative electrode cause the HIBs failure. To circumvent these issues, we propose the combination of fluorinated low-polarity solvents with a gelation treatment to prevent dissolutions at the interphase, thus, improving the HIBs’ performance. Using this approach, we develop a quasi-solid-state Cl-ion-conducting gel polymer electrolyte. This electrolyte is tested in a single-layer pouch cell configuration with an iron oxychloride-based positive electrode and a lithium metal negative electrode at 25 °C and 125 mA g –1 . The pouch delivers an initial discharge capacity of 210 mAh g –1 and a discharge capacity retention of almost 80% after 100 cycles. We also report assembly and testing of fluoride-ion and bromide-ion cells using quasi-solid-state halide-ion-conducting gel polymer electrolyte.
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: American Chemical Society (ACS)
Date: 28-08-2015
Abstract: Fluorinated graphene is one of the most important derivatives of graphene and has been found to have great potential in optoelectronic and photonic nanodevices. However, the stability of F atoms on fluorinated graphene under different conditions, which is essential to maintain the desired properties of fluorinated graphene, is still unclear. In this work, we investigate the diffusion of F atoms on pristine graphene, graphene with defects, and at graphene/fluorographene interfaces by using density functional theory calculations. We find that an isolated F atom diffuses easily on graphene, but those F atoms can be localized by inducing vacancies or absorbates in graphene and by creating graphene/fluorographene interfaces, which would strengthen the binding energy of F atoms on graphene and increase the diffusion energy barrier of F atoms remarkably.
Publisher: Elsevier BV
Date: 09-2018
Publisher: Elsevier BV
Date: 11-2015
Start Date: 10-2021
End Date: 10-2024
Amount: $461,379.00
Funder: Australian Research Council
View Funded ActivityStart Date: 04-2018
End Date: 04-2022
Amount: $332,398.00
Funder: Australian Research Council
View Funded ActivityStart Date: 2023
End Date: 12-2025
Amount: $515,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 06-2014
End Date: 06-2017
Amount: $385,090.00
Funder: Australian Research Council
View Funded ActivityStart Date: 09-2018
End Date: 09-2024
Amount: $733,125.00
Funder: Australian Research Council
View Funded ActivityStart Date: 04-2021
End Date: 04-2023
Amount: $468,000.00
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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