复合氧化物La_xSr_(1-x)Fe_(1-y)Co_yO_3的合成与表征  

Synthesis and Characteization of Complex Oxide La_xSr_(1-x)Fe_(1-y)Co_yO_3

作　　者：林生岭[1] 吴家建[1] 印厚飞[1] 朱炜峰[1] 曹旭[1] 

机构地区：[1]江苏科技大学材料科学与工程学院,江苏镇江212003

出　　处：《合成化学》2008年第5期508-511,515,共5页Chinese Journal of Synthetic Chemistry

基　　金：国家自然科学基金资助项目(20175008);江苏科技大学博士启动基金资助项目(2006CL0035)

摘　　要：用甘氨酸-硝酸盐燃烧法制备了陶瓷粉末复合氧化物LaxSr1-xFe1-yCoyO3(x=0.7,0.3;y=0.30,0.75,0.90),其结构经UV,IR,XRD,SEM和EDS表征。复合氧化物为立方和正交晶系,粒径15.3nm～29.8nm。Co2+可使复合氧化物中原子间作用力发生变化。循环伏安曲线分析结果表明,用复合氧化物制备的电极具有双功能氧化电极的电化学特征。Complex oxide, LaxSr1-xFe1-yCoyO3 （ x = 0.7, 0.3 ; y = 0.30, 0.75, 0.90）, was prepared by glycine-nitrate combustion method. The structure of complex oxide was characterized by UV, IR, XIRD, SEM and EDS. complex oxide belongs to cubic and orthorhombic system. The powder size was between 15.3 nm and 29.8 nm. The cyclic voltammetry curves showed that the electrode prepared from complex oxide exhibited electrochemical property of bifunctional oxygen electrode.

关 键 词：复合氧化物 陶瓷粉末 循环伏安 甘氨酸-硝酸盐燃烧法 

分 类 号：O611.66[理学—无机化学]