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Reduced graphene oxide-supported nickel oxide catalyst with improved CO tolerance for formic acid electrooxidation

Kumar, Kaleesh M and Jha, Niki S and Mohan, S and Jha, Shailendra K (2014) Reduced graphene oxide-supported nickel oxide catalyst with improved CO tolerance for formic acid electrooxidation. In: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 39 (24). pp. 12572-12577.

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Official URL: http://dx.doi.org/ 10.1016/j.ijhydene.2014.05.174

Abstract

The superior catalytic activity along with improved CO tolerance for formic acid electro-oxidation has been demonstrated on a NiO-decorated reduced graphene oxide (rGO) catalyst. The cyclic voltammetry response of rGO-NiO/Pt catalyst elucidates improved CO tolerance and follows direct oxidation pathway. It is probably due to the beneficial effect of residual oxygen groups on rGO support which is supported by FT-IR spectrum. A strong interaction of rGO support with NiO nanoparticles facilitates the removal of CO from the catalyst surface. The chronoamperometric response indicates a higher catalytic activity and stability of rGO-NiO/Pt catalyst than the NiO/Pt and unmodified Pt electrode catalyst for a prolonged time of continuous oxidation of formic acid. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Keywords: Direct formic acid fuel cell (DFAFC); Formic acid oxidation; Reduced graphene oxide (rGO) support; rGO-NiO nanocomposite
Department/Centre: Division of Biological Sciences > Molecular Biophysics Unit
Depositing User: Id for Latest eprints
Date Deposited: 24 Sep 2014 05:50
Last Modified: 24 Sep 2014 05:50
URI: http://eprints.iisc.ac.in/id/eprint/49932

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