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Electrospraying of Pt ∕ C -Nafion-alcohol dispersions was employed as a new method to deposit catalyst layers on Nafion membranes for hydrogen/oxygen(air) fuel cells. It is shown that single cells with catalyst layers obtained by electrospraying exhibit good initial performance ( ca. 1 A ∕ cm 2 @ 700 mV ) at 80°C and 300 kPa without the need for hot-pressing of the electrode layer. Analysis of polarization losses reveals a significant contribution of mass-transport losses to the fuel cell performance for hydrogen/air fuel cells. We suggest that control of electrospray processing parameters can lead to tailored electrode structures where such mass transport losses are mitigated.
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Baturina et al. (2005) studied this question.
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