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Room temperature synthesis of reduced graphene oxide nanosheets as anode material for supercapacitors

Sykam, Nagaraju and Rao, Mohan G (2017) Room temperature synthesis of reduced graphene oxide nanosheets as anode material for supercapacitors. In: MATERIALS LETTERS, 204 . pp. 169-172.

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Official URL: https://doi.org/10.1016/j.matlet.2017.05.114

Abstract

We report a facile approach to large scale synthesis of reduced graphene oxide (RGO) materials at room temperature with hydrazine hydrate. As-prepared GO and RGO materials were characterized by X-ray Photoelectron Spectroscopy, Raman spectroscopy, X-ray Diffraction, and scanning electron microscopy techniques. Electrochemical tests of RGO materials have been performed using cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy measurements under aqueous solution. The maximum specific capacitance of 112.6 F g(-1) for RGO material has been obtained to be at a current density of 1 A g(-1) in 1 M Na2SO4 electrolyte solution. The materials showed good cyclic stability up to 500 cycles and the degradation of the specific capacitance is only less than 3%. The simple approach and scalable synthesis of present study, is an efficient route to produce RGO sheets with low cost and is a promising material for potential supercapacitor applications. (C) 2017 Published by Elsevier B.V.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Depositing User: Id for Latest eprints
Date Deposited: 29 Jul 2017 06:30
Last Modified: 29 Jul 2017 06:30
URI: http://eprints.iisc.ac.in/id/eprint/57485

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