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采用固相反应法合成了Sr1-xCexCoO3-δ(x=0.05~0.2)阴极材料,并研究了其结构和电导性能.XRD图谱表明SrCoO3-δ体系中CeO2固溶量为10%~15%(质量分数),且随着氧化铈含量的增加体系稳定性略有降低,晶胞出现收缩.当氧化铈的掺杂量为15%时的电导率高于其它固溶量的组分,在350~400℃达到最高值,超过了500S/cm,满足了作为低温SOFC阴极材料的电学性能的要求.

参考文献

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