Cathode Materials for Solid Oxide Fuel Cells(SOFC)

A detailed overview has been given concerning the use of rare earth materials in cathode fabrica-tion of solid oxide fuel cells(SOFC).It is focused on the various synthesis methods of the perovskite-typemixed rare earth oxides and the physical and chemical properties of the materials for cathode application ofSOFC.Also discussed is the doping mechanism of the related materials.Documented investigations showthat lanthanide of transition metals,especially manganese,chromium doped with strontium are most advan-tageous for the application.The crystallography,defect structure,conductivity and thermal matching withthe electrolyte and high temperature stability of cathode in oxidative gases are particularly emphasized.