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Issue 51, 2018, Issue in Progress
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Facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors

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Abstract

Preparation of graphene (GR) based electrode materials with excellent capacitive properties is of great importance to supercapacitors. Herein, we report a facile approach to prepare partially reduced graphite oxide (PRG) nanosheets by reducing graphite oxide (GO) using commercial Cu2O powder as a reduction agent, moreover, we demonstrate that the PRG nanosheets can act as building blocks for assembling hydrogels (PRGH) and flexible film (PRGF). The obtained PRGH and PRGF can be directly used as binder-free electrodes for supercapacitors and give high specific capacitance (292 and 273 F g−1 at a current density of 0.5 A g−1 in a three-electrode system, respectively) due to the existence of oxygen-containing functional groups in PRG nanosheets. PRG also gives excellent rate ability and cycle stability. This study suggests a facile pathway to produce GR-based materials with excellent capacitive properties and is meaningful for flexible supercapacitors.

Graphical abstract: Facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors

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Supplementary files

Article information


Submitted
05 Jun 2018
Accepted
02 Aug 2018
First published
14 Aug 2018

This article is Open Access

RSC Adv., 2018,8, 28987-28996
Article type
Paper

Facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors

J. Zhang, L. Deng and Z. Liu, RSC Adv., 2018, 8, 28987
DOI: 10.1039/C8RA04788J

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

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    [Original citation] - Published by The Royal Society of Chemistry.

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