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Development of direct methanol alkaline fuel cells using anion exchange membranes

Lookup NU author(s): Dr Eileen Yu, Professor Keith Scott

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Abstract

Research into the development of direct methanol alkaline fuel cell (DMAFC) using an anion exchange polymer electrolyte membrane is described. The commercial membrane used had a higher electric resistance, but a lower methanol diffusion coefficient than NafionĀ® membranes. Fuel cell tests were performed using carbon supported Pt catalyst, and the effect of temperature, methanol concentration, methanol flow rate, air pressure and Pt loading were investigated. It was found that the cell performance improved drastically with a membrane assembly electrode (MEA) which did not include the gas diffusion layer on the anode, because of lower reactant mass transfer resistance. To give suitable cathode performance, humidification of the air and a subtle balance between the air pressure and water transport is required. Ā© 2004 Elsevier B.V. All rights reserved.


Publication metadata

Author(s): Yu EH, Scott K

Publication type: Article

Publication status: Published

Journal: Journal of Power Sources

Year: 2004

Volume: 137

Issue: 2

Pages: 248-256

ISSN (print): 0378-7753

ISSN (electronic): 1873-2755

Publisher: Elsevier SA

URL: http://dx.doi.org/10.1016/j.jpowsour.2004.06.004

DOI: 10.1016/j.jpowsour.2004.06.004


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