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Effect of Hot Pressing on the Performance of Direct Methanol Fuel Cells

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Abstract

The effects of hot pressing of electrodes onto Nafion® membranes in the preparation of membrane and electrode assemblies for direct methanol fuel cells have been investigated. Hot pressing does not significantly influence the cell resistance or methanol crossover, but it can decrease cell performance by restricting mass transport in the anode catalyst layer. It also increases the time required for the cell to reach optimum performance. Best performances were obtained with membrane and electrode assemblies that had not been pressed. It was also found that membranes that had not been subjected to hot pressing could easily be re-used, making recycling of membranes and catalysts more feasible.

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Authors and Affiliations

  1. Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1B 3X7

    C. Song & P.G. Pickup

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  1. C. Song
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  2. P.G. Pickup
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Song, C., Pickup, P. Effect of Hot Pressing on the Performance of Direct Methanol Fuel Cells. Journal of Applied Electrochemistry 34, 1065–1070 (2004). https://doi.org/10.1023/B:JACH.0000042673.70388.e1

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  • DOI: https://doi.org/10.1023/B:JACH.0000042673.70388.e1

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