COMBUSTION ROUTE TO FINE PARTICLE PEROVSKITE OXIDES

被引:98
作者
MANOHARAN, SS
PATIL, KC
机构
[1] Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore
关键词
D O I
10.1006/jssc.1993.1031
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Fine particle perovskite oxides such as LnCrO3 (where Ln = La, Pr, Nd, Sm, Dy, Gd, and Y), La1-xSrxMnO3 (x = 0.0 to 0.5), LaCoO3, and LaNiO3 have been prepared by the combustion of corresponding metal nitrate-tetraformal trisazine (TFTA) mixtures at 350°C/500°C in a few minutes under ambient conditions. The oxides are of submicrometer size with specific surface area ranging from 3-20 m2/g. The oxides have been characterized further by TEM and SEM studies. Sintering of LaCrO3 at 1500°C for 2 hr resulted in 85% (5.2 g/cm3) of the theoretical density. © 1993 Academic Press, Inc.
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页码:267 / 276
页数:10
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