| 摘要 |
PROBLEM TO BE SOLVED: To obtain an electrode catalytic layer of a fuel cell, which is provided with sufficient catalytic activity and the corrosion resistance against phosphoric acid and has the small deterioration of characteristics even in a long term operation. SOLUTION: A platinum alloy supporting catalyst is formed by preparing a carbon support by mixing >=2 kinds of carbon powder each graphited at a different heat treatment temperature from each other and supporting platinum and a base metal on the carbon support. The electrode catalytic layer is formed using the platinum alloy supporting catalyst. |
