| abstract |
A fuel cell anode catalyst that achieves high HOR activity, CO resistance, and oxidation resistance while reducing the amount of platinum used. A catalyst for an anode of a fuel cell comprising a platinum skin layer of 1 to 2 atomic layers on the surface of an alloy particle made of an alloy of platinum and a transition metal, wherein the transition metal is iron, cobalt, nickel or the like. In the state of alloy particles with platinum, the performance as a fuel cell is improved by providing a platinum skin layer of 1 to 2 atomic layers made of platinum atoms, particularly preferably 2 atomic layers, on the surface thereof. A catalyst for anode. A catalyst for an anode of a fuel cell, wherein the transition metal is iron or cobalt and the atomic composition of the transition metal in the alloy particles is 10 to 80%, preferably 25 to 60%. [Selection] Figure 1 |