ELECTRODE CATALYST HAVING SURFACE CONSTITUTION TO STRUCTURE CATALYST LAYER HAVING HIGH PERFORMANCE AND DURABILITY, AND ITS MANUFACTURING METHOD

摘要

PPROBLEM TO BE SOLVED: To provide an electrode catalyst for a fuel cell having a surface constitution suitable for structuring a catalyst layer having high performance and durability. PSOLUTION: On the electrode catalyst carrying catalytic metal on a carrier, the ratio of (C-O peak height)/(C-C peak height) obtained by dividing the C1s peak obtained by an X-ray photoelectron spectroscopy of the catalyst is not less than 0.2. PCOPYRIGHT: (C)2005,JPO&NCIPI