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Position: Home > Articles > Research on Preparation and selectivity of LSM cathode materials of solid oxide fuel cells Journal of Zhongkai University of Agriculture and Engineering 2011,24 (4) 27-31

固体氧化物燃料电池LSM阴极材料的制备及选择性研究

作  者:
丁姣;刘江;尹国强
单  位:
华南理工大学化学化工学院;仲恺农业工程学院化学化工学院
关键词:
固体氧化物燃料电池;阴极材料;La0.7Sr0.3MnO3(LSM);制备;选择性研究
摘  要:
采用固相法、燃烧法和溶解-凝胶法等3种制备固体氧化物燃料电池阴极材料的常用方法合成了La0.7Sr0.3MnO3(LSM)材料.合成的LSM粉体成ABO3钙钛矿结构,没有杂相生成.采用三电极法对LSM阴极材料的电化学性能进行了研究;同时将制备的3种LSM阴极材料应用于阳极支撑型固体氧化物燃料电池,组装成单电池,采用四电极法对单电池的输出性能进行了测试和比较.结果表明,溶胶-凝胶法合成的LSM阴极材料在800℃下界面电阻最小,约为3Ω.cm2,表现出良好的电性能.溶胶-凝胶法合成的LSM阴极材料制备的单电池电化学性能优良,在800℃时,输出功率密度达745 mW/cm2.
译  名:
Research on Preparation and selectivity of LSM cathode materials of solid oxide fuel cells
作  者:
DING Jiao1,LIU Jiang2*,YIN Guo-qiang1(1.College of Chemistry and Chemical Engineering,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China; 2.School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510641,China)
关键词:
solid oxide fuel cells;cathode material;La0.7Sr0.3MnO3(LSM);preparation;selectivity research
摘  要:
La0.7Sr0.3MnO3(LSM)cathode materials of solid oxide fuel cells were prepared by three kinds of methods: solid-state process,combustion process and sol-gel method.The as-prepared powder of LSM showed the expected perovskite structure without impurity phases.The electrochemical performance of LSM was investigated by three-probe setup,and the anode-supported solid oxide fuel cells with LSM cathode were assembling and tested by four-probe setup.The results showed that LSM cathode materials prepared by sol-gel method demonstrated good electrical properties with 3Ω·cm2 of interface resistance at 800 ℃.The single cell with LSM cathode materials prepared by sol-gel method represented good performance with the maximum output power density of 745 mW/cm2 at 800 ℃.

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