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A kinetic model for the direct methanol fuel cell anode based on surface coverage

Lookup NU author(s): Mahesh Shivhare, Ruth Allen, Emeritus Professor Keith Scott, Emeritus Professor Julian Morris, Professor Elaine Martin

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Abstract

Analytical models for the modelling of the anode of a direct methanol fuel cell (DMFC) using steady state approximation theory are developed in this paper. The kinetic models are temperature dependent and effectively describe the surface coverage of all the intermediate species involved in methanol oxidation using a dual site mechanism. The models are validated using experimental data for various methanol concentrations and temperatures for a conventional porous anode. The models can be applied for the predictions of the performance of the electrode and the behaviour of surface coverage of intermediates as a function of cell temperature, anode potential and methanol concentration and can be used for the physiochemical analysis of the DMFC. © 2006 Elsevier B.V. All rights reserved.

Publication metadata

Author(s): Shivhare MR, Allen RG, Scott K, Morris AJ, Martin EB

Publication type: Article

Publication status: Published

Journal: Journal of Electroanalytical Chemistry

Year: 2006

Volume: 595

Issue: 2

Pages: 145-151

ISSN (print): 0022-0728

ISSN (electronic): 1873-2569

Publisher: Elsevier SA

URL: http://dx.doi.org/10.1016/j.jelechem.2006.07.017

DOI: 10.1016/j.jelechem.2006.07.017

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