| 简介 |
PROBLEM TO BE SOLVED : To provide conductive catalytic particles exhibiting outstanding catalytic properties without causing sintering and a process for production thereof, a gas-diffusing catalytic electrode, and an electrochemical device.
SOLUTION : Conductive catalytic particles are composed of a conductive powder and a catalytic material adhering to the surface thereof. The catalytic material is an alloy of MI and MII (where MI denotes at least one species selected from noble metal elements such as Pt, Ir, Pd, Rh, Au and Ru; MII denotes at least one species selected from Co, Ni, Cr, Al, Cu, Hf, Zr, Ti, V, Nb, Ta, W, Ga, Ge, Si, Re, Os, Pb, Bi, Sb, Mo, O, N, F, C, Zn, In and rare earth elements). The conductive catalytic particles are produced by causing MI and MII to adhere at the same time to the surface of the conductive powder by physical vapor deposition.
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