摘要 |
Gas permeable layers in fuel cell membrane electrode assemblies are provided which comprises a mixture of first and second types of carbon particles, which may provide relatively hydrophilic and relatively hydrophobic pathways. In some embodiments, the first type of carbon particle oxidizes at a lower rate than said second type of carbon particle. In some embodiments, the first type of carbon particle is graphitized and the second type of carbon particle is not graphitized.
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