Positive electrode catalyst and device

文件类型：PDF文档
文件大小：596K
A positive electrode catalyst, for use in a positive electrode in a device provided with the positive electrode and a negative electrode, in which a reaction represented by 4OH−→O2+2H2O+4e− is performed on a side of the positive electrode. The positive electrode catalyst includes a layered metal oxide, wherein the layered metal oxide is a Ruddlesden-Popper type layered perovskite represented by (La1-xAx) (Fe1-yBy)3(Sr1-zCz)3O10-a wherein, A is a rare earth element other than La, B is a transition metal other than Fe, and C is an alkaline earth metal other than Sr; and x satisfies an expression : 0≦x<1, y satisfies an expression : 0≦y<1, z satisfies an expression : 0≦z<1, and a satisfies an expression : 0≦a≦3.