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.

引用

页码：3346 / 3351

页数：6

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