摘要
钙钛矿型复合氧化物（ＡＢＯ３）用途广泛。笔者采用醋酸盐法制备了Ｌａ（１－ｘ）ＳｒｘＭｎＯ３，Ｎｄ（１－ｘ）ＳｒｘＭｎＯ３（ｘ＝０．０，０．２，０．４，０．６，０．８，１．０），Ｌｎ（０．４）Ｓｒ（０．６）ＭｎＯ３，Ｌｎ（０．６）Ｓｒ０（０．４）ＭｎＯ３（Ｌｎ＝Ｌａ，Ｐｒ，Ｎｄ，Ｓｍ，Ｇｄ）共１７个试样。通过Ｘ射线衍射（ＸＲＤ）技术的测定和容忍因子的计算，证实所有试样均为钙钛矿型复合氧化物结构，同时测定了Ｌａ（１－ｘ）ＳｒｘＭｎＯ３的比表面积。
ccording to the methods of acetate co-precipitation,prepared are 17 samples: La1-xSrxMnO3,1-xSrxMnO3(x=0. 0, 0. 2, 0. 4, 0. 6, 0. 8, 1.0),Ln(0.4)Sr(0.6)MnO3, Ln(0.6)Sr(0.4)MnO3 (Ln=La, Pr, Nd, Sm, Gd). The samples are identified as perovskitetype mixed oxides by means of X-ray diffractometer and tolerence factor,and,the specific surface areas of La(1-x)SrxMnO3 are determined.
出处
《江汉石油学院学报》
CSCD
北大核心
1995年第4期61-64,69,共5页
Journal of Jianghan Petroleum Institute
关键词
氧化物
钙钛矿型
比表面积
复合氧化物
double oxides
perovskite
perovskite type structure
prepartation
unit
crystal structure determination
specific surface area
X-ray diffraction
