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Lookup NU author(s): Professor Eileen Yu, Emeritus Professor Keith Scott
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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 Nafion® 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. © 2004 Elsevier B.V. All rights reserved.
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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