Issue 1, 2017

Microwave assisted fabrication of a nanostructured reduced graphene oxide (rGO)/Fe2O3 composite as a promising next generation energy storage material

Abstract

Herein, we report a facile two-step process involving homogenous precipitation followed by microwave assisted reduction to fabricate a rGO–Fe2O3 composite. The applicability of the composite as an electrode material for supercapacitors has been evaluated by a cyclic voltammetry (CV) and galvanostatic charging–discharging (GCD) study. The composite displays excellent supercapacitor performance compared to bare rGO and generates a high specific capacitance of 577.5 F g−1, at a current density of 2 A g−1. A high rate performance is also observed by retaining a specific capacitance of 437.5 F g−1, at a high current density of 10 A g−1. Finally, the electrodes have been analyzed through electrochemical impedance spectroscopy (EIS) to probe the charge transfer characteristics and the results have been found to be consistent with other electrochemical measurements. The remarkable electrochemical performance of the rGO–Fe2O3 composite can be attributed to the positive synergistic effects between rGO platelets and Fe2O3 nanoparticles.

Graphical abstract: Microwave assisted fabrication of a nanostructured reduced graphene oxide (rGO)/Fe2O3 composite as a promising next generation energy storage material

Supplementary files

Article information

Article type
Paper
Submitted
05 10 2016
Accepted
19 10 2016
First published
23 12 2016
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 309-317

Microwave assisted fabrication of a nanostructured reduced graphene oxide (rGO)/Fe2O3 composite as a promising next generation energy storage material

M. Saraf, K. Natarajan and Shaikh M. Mobin, RSC Adv., 2017, 7, 309 DOI: 10.1039/C6RA24766K

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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