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新型SOFC电解质Ce_(0.8)Sm_(0.2)O_(1.9)的制备与表征

Preparation and Properties of Ce_(0.8)Sm_(0.2)O_(1.9) as a New Kind of SOFC Eletrolyte Material
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摘要 采用溶液共混煅烧法于800℃制备了Ce0.8Sm0.2O1.9(简称SDC)粉体。XRD分析表明Sm3+离子完全固溶在CeO2中,形成单相立方萤石结构SDC,晶粒平均粒径在1—3μm。用此粉体成型后在1 450℃烧结4 h获得了91.9%的相对密度。该固体电解质在800℃的电导率为0.087 S.cm-1。 Ce0.8Sm0.2O1.9(SDC) was synthesized by calcination of mixed solution method. XRD patterns showed that SDC powders calcined at 800 ℃ had a cubic fluorite structure and the average grain size was between 1-3 μm. After sintered for 4 h at 1 450 ℃, the relative density was 91.9%. The conductivity of SDC solid electrolyte was 0. 087 S·cm^-1 at 800℃.
出处 《武汉理工大学学报》 EI CAS CSCD 北大核心 2007年第10期77-79,共3页 Journal of Wuhan University of Technology
关键词 固体电解质 氧离子导体 SDC solid electrolyte oxygen ion conductor SDC
作者简介 赵晓锋(1982-),男,硕士生.E—mail:gqshao@whut.edu.cn
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