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Lookup NU author(s): Emeritus Professor Keith Scott,
Dr Wathiq Taama,
Dr Panagiotis Argyropoulos
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This paper reports performance data for the direct methanol fuel cell (DMFC) using membrane electrode assemblies using radiation-grafted proton exchange membranes based on polyethylene and ETFE. These membranes exhibited low methanol diffusion coefficients and were thus felt to be potentially useful in reducing possible methanol cross-over from anode to cathode. The membrane electrode assemblies were based on Nafion(®)-bonded carbon-supported catalyst; platinum/ruthenium for the anode and platinum for the cathode. The cell voltage performance of the DMFC, for short duration (<100h) testing, with these low cost membranes is as good as, or superior to, that of cells based on Nafion(®) under identical operating conditions. However, the stability of contact between the membrane and the catalyst layer requires improvement before these membranes become real alternatives to materials such as Nafion(®), for the DMFC. Copyright (C) 2000 Elsevier Science B.V.
Author(s): Scott K; Taama WM; Argyropoulos P
Publication type: Article
Publication status: Published
Journal: Journal of Membrane Science
ISSN (print): 0376-7388
ISSN (electronic): 1873-3123
Publisher: Elsevier B.V.
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