ORCID Profile
0000-0003-4817-6905
Current Organisation
RMIT University
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Nanomaterials | Catalytic Process Engineering | Functional Materials | Materials Engineering
Hydrogen Production from Renewable Energy | Expanding Knowledge in Engineering |
Publisher: Wiley
Date: 16-11-2020
Publisher: American Chemical Society (ACS)
Date: 02-07-2019
Abstract: Mesoporous carbon nitride (MCN) with well-ordered porous structures is a promising anode material for secondary ion batteries owing to their unique physico- and electrochemical properties. However, the practical application of these MCNs in sodium-ion batteries (SIBs) is still limited because of their confined interlayer distance, which results in restricted accommodation of Na ions inside the lattice. Here, we report on the synthesis of highly ordered sulfur-doped MCN (S-MCN) through a hard template approach by employing dithiooxamide (DTO) as a single molecular precursor containing carbon, nitrogen, and sulfur elements. The interlayer distance of carbon nitride is significantly expanded upon the introduction of larger S ions on the MCN lattice, which enables high capability of Na ion accommodation. We also demonstrate through the first-principles density functional theory calculation that the present S-MCN is highly optimized not only for the chemical structure but also for uptaking abundant Na ions with high adsorption energy. The specific discharge capacity of SIBs appears to be remarkably enhanced for S-MCN (304.2 mA h g
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9EN00500E
Abstract: This study explored for the first time the application of two-dimensional (2D) ruthenium oxide (RuO 2 ) nanosheets (NSs) for organic decomposition through peroxymonosulfate (PMS) activation.
Publisher: The Chemical Society of Japan
Date: 15-04-2021
Publisher: American Association for the Advancement of Science (AAAS)
Date: 14-05-2021
Abstract: RuO 2 2D nanosheet electrodes are used for enhanced photosynthetic electron harvesting from thylakoids.
Publisher: The Chemical Society of Japan
Date: 15-01-2021
Publisher: American Chemical Society (ACS)
Date: 06-03-2019
Abstract: A scalable organic intercalant-free liquid exfoliation route to 2D nanosheets (NSs) of layered transition-metal oxides (TMOs) is developed by employing hydronium-intercalated derivatives as precursors. The replacement of interlayer alkali metal ions with larger hydronium ions via acid treatment makes possible the efficient liquid exfoliation of TMOs without any assistance of organic intercalant cations. Not only a weakening of interlayer electrostatic interaction upon hydronium intercalation but also an efficient solvation of deintercalated hydronium ions via hydrogen bonding with polar solvents is mainly responsible for the high efficacy of hydronium-intercalated TMOs as precursors for liquid exfoliation. The nature of the solvent employed also has a profound effect on the exfoliation yield of these TMO NSs viscosity, surface tension, density, and Hansen solubility parameter as well as the capability to solvate the exfoliated NSs and hydronium ions are crucial factors for determining the exfoliation efficiency of the hydronium-intercalated precursor. All the obtained Ti
Publisher: Elsevier BV
Date: 04-2022
Publisher: Wiley
Date: 14-07-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0CS00075B
Abstract: This review highlights the recent progress in porous materials (MOFs, zeolites, POPs, nanoporous carbons, and mesoporous materials) for CO 2 capture and conversion.
Publisher: Elsevier BV
Date: 04-2021
Publisher: Elsevier BV
Date: 08-2021
Publisher: Elsevier BV
Date: 06-2020
Publisher: Elsevier BV
Date: 09-2020
Publisher: Elsevier BV
Date: 02-2021
Publisher: American Scientific Publishers
Date: 03-2021
Abstract: We report on the synthesis of 3D mesoporous fullerene/carbon hybrid materials with ordered porous structure and high surface area by mixing the solution of fullerene and sucrose molecules in the nanochannels of 3D mesoporous silica, KIT-6 via nanotemplating approach. The addition of sucrose molecules in the synthesis offers a thin layer of carbon between the fullerene molecules which enhances not only the specific surface area and the specific pore volume but also the conductivity of the hybrid materials. The prepared hybrids exhibit 3D mesoporous structure and show a much higher specific surface area than that of the pure mesoporous fullerene. The hybrids materials are used as the electrodes for supercapacitor and Li-ion battery applications. The optimised hybrid s le shows an excellent rate capability and a high specific capacitance of 254 F/g at the current density of 0.5 A/g, which is much higher than that of the pure mesoporous fullerene, mesoporous carbon, activated carbon and multiwalled carbon nanotubes. When used as the electrode for Li-ion battery, the s le delivers the largest specific capacity of 1067 mAh/g upon 50 cycles at the current density of 0.1 A/g with stability. These results reveal that the addition of carbon in the mesoporous fullerene with 3D structure makes a significant impact on the electrochemical properties of the hybrid s les, demonstrating their potential for applications in Li-ion battery and supercapacitor devices.
Publisher: Elsevier BV
Date: 04-2021
Publisher: Wiley
Date: 05-04-2022
Abstract: Porous boron carbon nitride (BCN) is one of the exciting systems with unique electrochemical and adsorption properties. However, the synthesis of low‐cost and porous BCN with tunable porosity is challenging, limiting its full potential in a variety of applications. Herein, the preparation of well‐defined mesoporous boron carbon nitride (MBCN) with high specific surface area, tunable pores, and nitrogen contents is demonstrated through a simple integration of chemical polymerization of readily available sucrose and borane ammonia complex (BAC) through the nano‐hard‐templating approach. The bimodal pores are introduced in MBCN by controlling the self‐organization of BAC and sucrose molecules within the nanochannels of the template. It is found that the optimized s le shows a high specific capacitance (296 F g −1 at 0.5 A g −1 ), large specific capacity for sodium‐ion battery (349 mAg h −1 at 50 mAh g −1 ), and excellent CO 2 adsorption capacity (27.14 mmol g −1 at 30 bar). Density functional theory calculations demonstrate that different adsorption sites (BC, BN, CN, and CC) and the large specific surface area strongly support the high adsorption capacity. This finding offers an innovative breakthrough in the design and development of MBCN nanostructures for energy storage and carbon capture applications.
Publisher: Elsevier BV
Date: 12-2021
Publisher: Elsevier BV
Date: 10-2019
Publisher: American Chemical Society (ACS)
Date: 18-05-2020
Publisher: Elsevier BV
Date: 11-2019
Start Date: 12-2022
End Date: 12-2025
Amount: $340,000.00
Funder: Australian Research Council
View Funded Activity