Patent ID: 6720100
Filing Date: 2004-04-13
Classification: B01J,C01B,H01M,Y02E,Y02P

Abstract:
A solid electrolyte fuel cell having an anode including an oxidation catalyst of a gaseous compound comprising a catalyst for promoting an oxidation reaction of a gaseous compound by oxygen ions supplied through a solid electrolyte under an environment where no oxygen molecules are present, wherein the oxidation catalyst comprises a composition of metal oxide particles produced by firing a precipitate comprised of a mixture of two metal hydrates obtained by coprecipitation from a mixed solution of two metal salts of different metal positive ions dissolved together, the composition of said metal oxide particles is expressed by the formula:ABO2 wherein, A is an element selected from the group consisting of Pd, Pt, Cu and Ag;B is an element selected from the group consisting of Co, Cr, Rh, Al, Ga, Fe, In, Sc, and Tl wherein the fuel cell is comprised of a large number of dispersed layers formed by dispersing said metal oxide particles inside a conductive porous body.