Preparation of Perovskite-Type Oxides La1-xSrxFe1-yCoyO3 Using EDTA Sol-Gel Method
来源期刊：JOURNAL OF RARE EARTHS2004年第6期
论文作者：王华 马文会 于洁
Key words：perovskite; La1-xSrxFe1-yCoyO3; EDTA sol-gel method; preparation process; rare earths;
Abstract: Two series of perovskite-type oxides with composition La1-xSrxFeO3(x≤0.8)and La1-xSrxFe1-yCoyO3(x=0.2; y=0.2, 0.4)powder productions were synthesized by EDTA complexing sol-gel method. The products were characterized by XRD, TEM, SEM, BET method(N2 adsorption)and laser granularity analysis for different synthesis conditions to obtain the optimum conditions for the preparation process. Single-phased, uniform perovskite-type oxides with small particle size were obtained by EDTA sol-gel process with high stability and repeatability, and the process temperature is much lower than that of solid state reaction method.
王华1，马文会1，于洁1
(1.Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming, 650093, China)
Abstract:Two series of perovskite-type oxides with composition La1-xSrxFeO3(x≤0.8)and La1-xSrxFe1-yCoyO3(x=0.2; y=0.2, 0.4)powder productions were synthesized by EDTA complexing sol-gel method. The products were characterized by XRD, TEM, SEM, BET method(N2 adsorption)and laser granularity analysis for different synthesis conditions to obtain the optimum conditions for the preparation process. Single-phased, uniform perovskite-type oxides with small particle size were obtained by EDTA sol-gel process with high stability and repeatability, and the process temperature is much lower than that of solid state reaction method.
Key words:perovskite; La1-xSrxFe1-yCoyO3; EDTA sol-gel method; preparation process; rare earths;
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