| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an air electrode catalyst for a fuel cell which can maintain high oxygen-reducing activity over a long period, by preventing elution of alloy component and sintering of noble metal components in an electrode catalyst using a noble metal alloy, and to provide a method for manufacturing the same. <P>SOLUTION: The air electrode catalyst for the fuel carries noble metal alloy electrode catalyst particle 2, made of an alloy in which a lattice constant adjusted metal is doped to the noble metal, to a conductive carrier 1 so that the front surface of the catalyst particle 2 is partly covered with an oxide 3 of the lattice constant adjusting metal contained in the noble metal alloy which constitutes this catalyst particle 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
