| 摘要 |
A fuel cell (5) has catalysts (8, 9) on either side of a proton exchange membrane (7). The catalysts have a coating (19, 20) of soluble polymer and carbon forming microporous layers adhered to the catalyst chemically and/or by mechanical interference. The coating solution may be sprayed or rolled onto the catalyst or the catalyst may be dipped into the solution. Macroporous support layers (14, 15) may be adhered to the catalyst by the microporous coating.
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