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Issue 77, 2017
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Metal doped mesoporous FeOOH nanorods for high performance supercapacitors

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Abstract

In the present study, the effect of doping of foreign atoms on the parent atoms and the application of the resultant material for energy storage are successfully investigated. A facile method is reported for successful incorporation of cobalt into the regular crystal lattice of iron oxide in ethylene glycol media. As iron oxides are reasonable, the Co doped nano-goethite is expected to be of potential use for supercapacitor application with a high specific capacitance value of 463.18 F g−1 at 0.1 A g−1 current density. It shows a cycling stability of 1000 at 1 A g−1 with 96.36% of initial capacitance. The doped goethite nanorod with a band gap of 2.82 eV and high surface area (159.74 m2 g−1) was found to be a superior electrode material for supercapacitors in terms of specific capacitance and cycling capability at a particular percentage of doping. The high discharge capacitance and its retention are attributed to high surface area and porosity of the doped iron oxide.

Graphical abstract: Metal doped mesoporous FeOOH nanorods for high performance supercapacitors

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Supplementary files

Article information


Submitted
16 Jun 2017
Accepted
30 Sep 2017
First published
20 Oct 2017

This article is Open Access

RSC Adv., 2017,7, 49083-49090
Article type
Paper

Metal doped mesoporous FeOOH nanorods for high performance supercapacitors

R. Barik, B. K. Jena and M. Mohapatra, RSC Adv., 2017, 7, 49083
DOI: 10.1039/C7RA06731C

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