Solid-state synthesis of Sr- and Co-doped LaMnO3 perovskites
来源期刊：中国有色金属学报(英文版)2001年第6期
论文作者：马文会 谢刚 陈书荣 崔衡
文章页码：904 - 907
Key words：solidstate reaction synthesis; La1-xSrxMn1-yCoyO3-δ； perovskite; intermediate temperature SOFCs
Abstract: The synthesis process for La1-xSrxMn1-yCoyO3-δ(x =0.2, 0.3;y =0.2, 0.8,designated as LSMC below) perovskite oxides prepared by solid state reaction was investigated using DSC/TG, XRD, EPMA and particle size analysis methods. It was found that LSMCs were all of single phase and the synthesis process might be divided into three stages: the decomposition of reactants, the formation of LaMn(Co)O3-based oxides, and the formation of LSMC solid solution. Typical average and the peak value of particle size, and the specific surface area are 14.65μm,16.4μmand 1.38m2/mL,respectively, for mixed reactants and are 23.81μm, 32.11μmand 0.5m2/mL, respectively, for powder synthesized at 1200℃for 8hin air.
