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Performance of carbon nanofiber supported Pd-Ni catalysts for electro-oxidation of ethanol in alkaline medium

Lookup NU author(s): Emeritus Professor Keith Scott

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Abstract

Carbon nanofibers (CNF) supported Pd-Ni nanoparticles have been prepared by chemical reduction with NaBH4 as a reducing agent. The Pd-Ni/CNF catalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electrochemical voltammetry analysis. TEM showed that the Pd-Ni particles were quite uniformly distributed on the surface of the carbon nanofiber with an average particle size of 4.0 nm. The electro-catalytic activity of the Pd-Ni/CNF for oxidation of ethanol was examined by cyclic voltammetry (CV). The onset potential was 200 mV lower and the peak current density four times higher for ethanol oxidation for Pd-Ni/CNF compared to that for Pd/C. The effect of an increase in temperature from 20 to 60 degrees C had a great effect on increasing the ethanol oxidation activity. (C) 2010 Elsevier B.V. All rights reserved.

Publication metadata

Author(s): Maiyalagan T, Scott K

Publication type: Article

Publication status: Published

Journal: Journal of Power Sources

Year: 2010

Volume: 195

Issue: 16

Pages: 5246-5251

Print publication date: 01/08/2010

ISSN (print): 0378-7753

ISSN (electronic): 1873-2755

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.jpowsour.2010.03.022

DOI: 10.1016/j.jpowsour.2010.03.022

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