| 摘要 |
A reaction layer which is highly active and has a high utilization efficiency of catalyst can be easily formed on a surface of an electrolyte membrane of a fuel cell at low cost. Reaction layers (10A, 10B) are formed on surfaces of an electrolyte membrane (10) of a fuel cell by electroless plating at low cost. Since the reaction layers (10A, 10B) are formed as uniform thin films, the reaction layers (10A, 10B) have a large catalytically active surface to the catalytic metal amount. Preferably, a reaction layer having a thickness of 0.1-20 mum is formed on a membrane (10) that is a cation-exchange membrane by reducing a platinum complex using sodium borohydride as a reducing agent. |
