Research progress in modification of cathode for LaFeO3-based SOFC
As a crucial component of solid oxide fuel cell(SOFC),the performance of the cathode impacts the efficiency of the cell.Perovskite-type LaFeO3-based semiconductor materials are potential SOFC cathode materials due to unique mixed electronic-ionic conductive properties.The strategies to improve the performance of cathode materials are reviewed.According to the doping position,the doping elements and doping amounts used in separate and co-doping of the A-and B-site of LaFeO3 are introduced,as well as modification methods such as nanomaterialization,A-site defects.The effect of modification on the thermal expansion coefficient,polarization resistance,electrochemical efficiency and oxygen reduction reaction performance of the material is analyzed.
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