| 摘要 |
PROBLEM TO BE SOLVED: To provide conductive catalyst particles which do not give rise to sintering and are excellent in catalyst characteristics and a method for manufacturing the same, a gas diffusive catalyst electrode and an electrochemical device. SOLUTION: The conductive catalyst particles stuck with a catalyst material consists of an alloy of a noble metal material and an additive material of a thermally non-solid soluble system to the noble material on the surface of a conductive powder and the method for manufacturing comprises simultaneously bonding this noble metal material and additive material to the surface of the conductive powder by a physical vapor deposition process, the conductive catalyst particles stuck with the catalyst material consisting of the alloy of MI (wherein MI is noble metal elements, such as Pt, Ir, Pd, Rh, Au and Ru) and MII (wherein MII is Fe, Co, Ni, Cr, Al, Cu, Hf, Zr, Ti, V, Nb, Ta, W, Ga, Sn, Ge, Si, Re, Os, Pb, Bi, Sb, Mo, Mn, O, N, F, C, Zn, In or rear earth elements) on the surface of the conductive powder, and the method for manufacturing such conductive catalyst particles is provided. |
