Low temperature synthesis of BaCeO3 nano powders by the citrate process

被引：62
|
作者：
Lee, DW [1 ]
Won, JH [1 ]
Shim, KB [1 ]
机构：
[1] Hanyang Univ, Ceram Proc Res Ctr, Dept Ceram Engn, Seongdong Ku, Seoul 133791, South Korea
来源：
MATERIALS LETTERS | 2003年 / 57卷 / 22-23期
关键词：
BaCeO3; nanosized powder; citrate process;
D O I：
10.1016/S0167-577X(03)00072-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanosized BaCeO3 powders with the homogeneous composition were synthesized at the relatively low temperature of 900 degreesC by a citrate process based on the Pechini method. A polymeric precursor was formed by use of citric acid and ethylene glycol as a chelating agent of metal ions and reaction medium, respectively. The orthorhombic BaCeO3 powders, about 100-nm sized and uniformly shaped, were obtained through the calcination of the polymeric precursor at 900 degreesC for 4 h. It was found (CO32- ) that the small quantities of the remanent carbonate ions 3 were completely decomposed at over 1100 degreesC. (C) 2003 Elsevier Science B.V. All rights reserved.
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收藏
页码：3346 / 3351
页数：6
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