| abstract |
An oxygen reduction catalyst capable of improving the durability of a fuel cell is provided. A cathode electrode 3 of an anion exchange type solid polymer fuel cell contains a first component having oxygen reduction activity and a second component having peroxide decomposition activity, and the second component is: An oxygen reduction catalyst selected from at least one of manganese, an alloy containing manganese, cerium, an alloy containing cerium, and an oxide thereof is used. [Selection figure] None |