固相烧结法制备高纯LaCoO_3粉末  

Pure LaCoO_3 Powders by Solid-phase Sintering Method

作　　者：宋更新[1] 

机构地区：[1]东北电力大学理学院,吉林吉林132012

出　　处：《东北电力大学学报》2013年第6期80-82,共3页Journal of Northeast Electric Power University

基　　金：东北电力大学博士科研启动基金(BSJXM-201015)

摘　　要：LaCoO3是典型的ABO3型钙钛矿化合物。它具有优异的化学稳定性和高温下的良导电性,在环境催化分解、汽车尾气处理、巨磁阻材料、二次电池和燃料电池的电极材料等方面都有着十分广泛的应用前景。通过XRD谱和XPS研究发现,固相烧结法制备LaCoO3的最佳配比为Co La=105%,最佳烧结时间为50小时。LaCoO3 is a typical ABO3 perovskite-type compounds. It has excellent chemical stability and good e-lectrical conductivity under high temperature,due to their potential applications in energetics both as cathodes and solid electrolytes in solid oxide fuel cells,and both in environmental catalysis for pollutant decomposition and colossal magnetoresistance materials. Found by XRD and XPS studies,the best ratio of synthesis of LaCoO3 by solid-phase sintering method is Co La=105%,the optimum sintering time of 50 hours.

关 键 词：固相烧结法 LACOO3 原子配比 烧结时间 

分 类 号：O469[理学—凝聚态物理]