| abstract |
A novel and improved supported electrocatalyst having high catalytic activity, active components uniformly distributed, a simple manufacturing method, easy operation, and reduced influence on the environment To provide a method for producing a catalyst. A carbon monoxide-resistant supported electrocatalyst for a cation exchange membrane fuel cell (PEMFC) comprising PtAu—M x O y (x = 1, 2, or 3, supported on a carrier). y = 1, 2, 3 or 4), and the total weight of the supported electrocatalyst is 5 to 60% by weight of Pt, 0.01 to 10% by weight of Au, M x O y The weight content is 0.1 to 20% by weight, and M is one or more transition metals selected from Fe, Al, Si, Ti, Zr, Mn, Ce and Co. [Selection] Figure 1 |