| 摘要 |
A membrane-electrode assembly for a direct oxidation fuel cell is provided to solve the problem of crossover of hydrocarbon fuel toward a cathode, and to allow fabrication of a direct oxidation fuel cell system showing a high output. A membrane-electrode assembly(17) for a direct oxidation fuel cell comprises: an anode and a cathode facing to each other; and a polymer electrolyte membrane interposed between the anode and the cathode, wherein the cathode comprises a substrate containing a hydrocarbon fuel oxidation catalyst, and a cathode catalyst layer formed on the substrate. The hydrocarbon fuel oxidation catalyst comprises a first catalyst selected from Rh, Pd, Ir, Au and a combination thereof, and a Pt-based second catalyst.
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