Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7736895 | Journal of Power Sources | 2014 | 22 Pages |
Abstract
In the present work, an experimental study on the performance of a passive DEFC is described. Tailored MEAs (membrane electrode assembly) with different catalyst loadings, anode diffusion layers and membranes were tested in order to select optimal working conditions at high ethanol concentrations and low ethanol crossover. The performance increased with an increase of membrane and anode diffusion layer thicknesses and anode catalyst loading. A maximum power density of 1.33 mW cmâ2, was obtained using a Nafion 117 membrane, 4 mg cmâ2 of Pt-Ru and 2 mg cmâ2 of Pt on the anode and cathode catalyst layers, ELAT as anode diffusion layer, carbon cloth as cathode diffusion layer and an ethanol concentration of 2 M. As far as the authors are aware this is the first work reporting an experimental optimization of passive DEFCs.
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Authors
J.P. Pereira, D.S. Falcão, V.B. Oliveira, A.M.F.R. Pinto,