LaFeO_(3)基SOFC阴极改性的研究进展  

Research progress in modification of cathode for LaFeO_(3)-based SOFC

作　　者：李辰雪 李刘帅 殷佳辉 杨浪 朱兵[1] LI Chenxue;LI Liushuai;YIN Jiahui;YANG Lang;ZHU Bing(College of Electrical Engineering,Guizhou University,Guiyang,Guizhou 550025,China)

机构地区：[1]贵州大学电气工程学院,贵州贵阳550025

出　　处：《电池》2024年第5期719-724,共6页Battery Bimonthly

基　　金：贵州省科技支撑计划项目(2017YFB0902100)。

摘　　要：作为固体氧化物燃料电池(SOFC)的重要组成部分,阴极性能的优劣影响电池的工作效率。钙钛矿型LaFeO_(3)基半导体材料具有特殊的电子-离子混合导电性质,是一种潜在的SOFC阴极材料。综述提高阴极材料性能的策略,按掺杂位置,介绍在LaFeO_(3)的A、B位单独掺杂和共掺杂时,采用的掺杂元素和掺杂量,并介绍纳米化、A位缺陷等修饰手段。分析改性对材料热膨胀系数、极化电阻、电化学效率和氧还原反应等性能的影响。As a crucial component of solid oxide fuel cell(SOFC),the performance of the cathode impacts the efficiency of the cell.Perovskite-type LaFeO_(3)-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 LaFeO_(3) 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.

关 键 词：固体氧化物燃料电池(SOFC) 阴极 钙钛矿 电化学性能 

分 类 号：TM911.4[电气工程—电力电子与电力传动]