Membrane based In-situ reduction of graphene oxide for electrochemical supercapacitor application
Lin, Tongxi ![ORCID Identifier](/img/uab/orcid.ico)
(University of New South Wales Sydney)
Ren, Xiaojun ![ORCID Identifier](/img/uab/orcid.ico)
(University of New South Wales Sydney)
Wen, Xinyue ![ORCID Identifier](/img/uab/orcid.ico)
(University of New South Wales Sydney)
Karton, Amir ![ORCID Identifier](/img/uab/orcid.ico)
(University of New England)
Quintano, Vanesa ![ORCID Identifier](/img/uab/orcid.ico)
(Institut Català de Nanociència i Nanotecnologia)
Joshi, Rakesh ![ORCID Identifier](/img/uab/orcid.ico)
(University of New South Wales Sydney)
Date: |
2024 |
Abstract: |
Reduced graphene oxide (rGO) is a widely studied electrode material for energy storage, however, its strong re-stacking tendency during chemical reduction always leads to a degraded specific surface area and thus limits its performance. Therefore, it is necessary to control the morphology of rGO during the reduction process. Here, we develop a novel in-situ membrane-based method for the reduction of graphene oxide (GO) using a green and efficient vitamin C (VC) aqueous solution as reductant. The obtained electrode material (vitamin C reduced GO via membrane-based method, VG-M) exhibits a specific capacitance of 174 F/g at 1 A/g and 75. 9% of retention at 40 A/g, which is about 9 times better than the highly self-stacked material from conventional methods (vitamin C reduced GO via stirring method, VG-S). This designed method successfully achieves the maintenance of rGO sheet morphology through laminar confinement in GO membrane and presents a simple approach towards two-dimensional (2D) material morphology control. |
Grants: |
European Commission 101066462
|
Rights: |
Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. ![Creative Commons](/img/licenses/by.ico) |
Language: |
Anglès |
Document: |
Article ; recerca ; Versió publicada |
Subject: |
Reduced graphene oxide ;
Vitamin C ;
Supercapacitor |
Published in: |
Carbon, Vol. 224 (April 2024) , art. 119053, ISSN 0008-6223 |
DOI: 10.1016/j.carbon.2024.119053
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Record created 2024-06-07, last modified 2024-06-11