ORCID Profile
0000-0001-9838-3246
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.
Nanomaterials | Chemical Engineering | Nanotechnology not elsewhere classified | Synthesis of Materials | Interdisciplinary Engineering not elsewhere classified | Nanotechnology | Membrane and Separation Technologies |
Manufacturing not elsewhere classified | Industrial Chemicals and Related Products not elsewhere classified | Energy Storage (excl. Hydrogen) | Expanding Knowledge in Technology
Publisher: Elsevier BV
Date: 05-2017
Publisher: American Chemical Society (ACS)
Date: 04-02-2015
DOI: 10.1021/AM508119C
Abstract: Composites of a Ni-doped metal organic framework (MOF) with reduced graphene oxide (rGO) are synthesized in bulk (gram scale) quantities. The composites are composed of rGO sheets, which avoid restacking from the physical presence of MOF crystals. At larger concentration of rGO, the MOF crystals are distributed on the overlapping and continuous rGO sheets. Ni in Ni-doped MOF is found to engage in a two-electron, reversible, efficient, redox reaction shuttling between Ni and Ni(OH)2 in aqueous potassium hydroxide (KOH) electrolyte. The reaction is rather unique as Ni-based supercapacitors use a one-electron transfer Faradaic redox reaction between Ni(OH)2 and NiO(OH). Employing electrochemical impedance spectroscopy, we determined the charge transfer resistance to be 184 mΩ for MOF, 74 mΩ for a Ni-doped MOF and 6 mΩ for a rGO-Ni-doped MOF composite, but these modifications do not affect the mass transfer resistance. This novel redox reaction in conjunction with the lowered charge transfer resistance from the introduction of rGO underpins the synergy that dramatically increases the capacitance to 758 F/g in the rGO-Ni-doped MOF composite, when the parent MOF could store only 100 F/g and a physical composite of rGO and Ni-doped MOF could algebraically achieve about 240 F/g. A generic approach of doping MOFs with a redox active metal and forming a composite with rGO transforms an electro-inactive MOF to high capacity energy storage material with energy density of 37.8 Wh/kg at a power density of 227 W/kg. These results can promote the development of high-performance energy storage materials from the wide family of MOFs available.
Publisher: Informa UK Limited
Date: 12-01-2023
Publisher: American Chemical Society (ACS)
Date: 14-01-2022
Publisher: The Science Breaker
Date: 2020
Publisher: Springer Science and Business Media LLC
Date: 10-09-2021
DOI: 10.1038/S41467-021-25612-5
Abstract: The viability of lithium-sulfur batteries as an energy storage technology depends on unlocking long-term cycle stability. Most instability stems from the release and transport of polysulfides from the cathode, which causes mossy growth on the lithium anode, leading to continuous consumption of electrolyte. Therefore, development of a durable cathode with minimal polysulfide escape is critical. Here, we present a saccharide-based binder system that has a capacity for the regulation of polysulfides due to its reducing properties. Furthermore, the binder promotes the formation of viscoelastic filaments during casting which endows the sulfur cathode with a desirable web-like microstructure. Taken together this leads to 97% sulfur utilisation with a cycle life of 1000 cycles (9 months) and capacity retention (around 700 mAh g −1 after 1000 cycles). A pouch cell prototype with a specific energy of up to 206 Wh kg −1 is produced, demonstrating the promising potential for practical applications.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2EW00941B
Abstract: This review article focuses on metal–organic framework (MOF) composites and the impact of mixing MOFs with other materials, such as polymers, carbon-based materials, and magnetic particles, to increase their performance to remove metals from water.
Publisher: American Chemical Society (ACS)
Date: 28-07-2023
Publisher: American Chemical Society (ACS)
Date: 20-12-2019
Publisher: American Chemical Society (ACS)
Date: 11-08-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D1TA07523C
Abstract: Sulfonated porous aromatic frameworks (SPAFs) accelerate Li-ion diffusion while retarding the polysulfide shuttle effect in Li–S batteries. This leads to high residual capacity above 1000 mA h g −1 and coulombic efficiency ( .5%) after 500 cycles.
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA06665A
Abstract: Electrochemical utilization of catalyst particles significantly increases the capacitance of catalytic MOF-derived graphitic carbon-nanofibers.
Publisher: Wiley
Date: 16-02-2021
Abstract: The lithium–sulfur (Li–S) battery is at the forefront of technologies that can outperform lithium‐ion in at least one index of performance, provided that solutions to poor cycle‐life can be devised. One key component of the Li–S battery is the separator, because it holds tremendous promise for improving cycle‐life by mitigating the well‐known polysulfide shuttle, enabling lean electrolyte configurations, and restricting solid electrolyte interphase growth at the Li‐metal anode. However, in response to the advent of the “functional separator” for Li–S batteries, severe misinterpretations of progress have been made due to the often incomplete presentation of the performance and characterization criteria for these new components. Accordingly, there is an urgent need to look critically at what has been achieved in Li–S separator research, with the aim of reconciling actual progress against claimed improvements. This review advocates the best practices for reporting the performance of Li–S separators and proposes guidelines on measurements with respect to key properties. It is believed that the adoption of these measurement practices, testing, and reporting styles will enable more accurate determination of separator performance and properties, which in turn can allow for more meaningful comparisons between various approaches, as well as facilitating the transition of laboratory concepts to practical designs.
Publisher: Elsevier BV
Date: 05-2013
Publisher: Elsevier BV
Date: 09-2011
Publisher: Elsevier BV
Date: 05-2012
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA01200H
Abstract: Novel TFN-FO membranes with improved water flux have been synthesized by adding C 60 @PAF 900 into the organic phase of interfacial polymerization.
Publisher: American Chemical Society (ACS)
Date: 18-07-2016
Publisher: Wiley
Date: 25-08-2020
Publisher: Informa UK Limited
Date: 06-2022
DOI: 10.2147/OPTH.S362342
Publisher: Wiley
Date: 06-10-2022
Abstract: The realization of lithium–sulfur (Li–S) batteries as an energy storage technology depends on unlocking practical performance at commercially relevant pouch cell scales. Typically, the heterogeneous and porous nature of large scale, high sulfur loading Li–S batteries require increased electrolyte levels and impede electronic conductivity. Improved cathode structures offer a pathway to strong performance at large battery scales. Here, the successful development of a new cathode using highly‐carboxylated and negatively surface charged cellulose nanofibers as a backbone that addresses these issues and delivers an ordered, dense architecture whilst maintaining long term cycle life, is reported. Taken together this leads to an Ah‐level pouch cell with a peak capacity above 1200 mAh g −1 and an areal capacity of around 15 mAh cm −2 , which achieves a high gravimetric energy density of up to 330 Wh kg −1 and volumetric energy density of 480 Wh L −1 . The cell is used to power a drone for 10 min, demonstrating the ability of this discovery to be translated at practical scales.
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6TA07098A
Abstract: A new pathway to onion-like carbon with narrow, regular and connected pores overcomes the trade-off between power delivery and energy storage capacity in supercapacitors.
Publisher: Springer Science and Business Media LLC
Date: 07-03-2016
DOI: 10.1038/NCOMMS10891
Abstract: Graphene-based membranes demonstrating ultrafast water transport, precise molecular sieving of gas and solvated molecules shows great promise as novel separation platforms however, scale-up of these membranes to large-areas remains an unresolved problem. Here we demonstrate that the discotic nematic phase of graphene oxide (GO) can be shear aligned to form highly ordered, continuous, thin films of multi-layered GO on a support membrane by an industrially adaptable method to produce large-area membranes (13 × 14 cm 2 ) in s. Pressure driven transport data demonstrate high retention ( %) for charged and uncharged organic probe molecules with a hydrated radius above 5 Å as well as modest (30–40%) retention of monovalent and alent salts. The highly ordered graphene sheets in the plane of the membrane make organized channels and enhance the permeability (71±5 l m −2 hr −1 bar −1 for 150±15 nm thick membranes).
Publisher: Elsevier BV
Date: 12-2022
Publisher: American Association for the Advancement of Science (AAAS)
Date: 03-01-2020
Abstract: We report expansion-tolerant architectures in ultrahigh-loading sulfur cathodes inspired by particle agglomeration theories.
Publisher: Elsevier BV
Date: 2023
Publisher: American Chemical Society (ACS)
Date: 27-03-2020
Publisher: Wiley
Date: 04-09-2023
Start Date: 2019
End Date: 2021
Funder: Australian Research Council
View Funded ActivityStart Date: 07-2019
End Date: 07-2024
Amount: $400,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 09-2022
End Date: 09-2027
Amount: $4,379,165.00
Funder: Australian Research Council
View Funded Activity