Synthesis and characterization of Ba1-xSrxTiO3 nanopowders by citric acid gel method

被引：40

作者：

Wang, Zheng

Jiang, Shenglin

Li, Guangxing

Xi, Mingpeng

Li, Tao ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Chem, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Dept Elect Sci & Technol, Wuhan 430074, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2007年 / 33卷 / 06期

关键词：

Ba1-xSrxTiO3; sol-gel synthesis; nanopowders;

D O I：

10.1016/j.ceramint.2006.03.015

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Stoichiometric and monophasic Ba1-xSrxTiO3 (x = 0.3) nanopowders were successfully prepared by the citric acid gel method using barium nitrate, strontium nitrate and tetra-n-butyl titanate as Ba, Sr, Ti sources and citric acid as complexing reagent. Thermogravimetric analysis (TGA), differential scanning calorimetry (I)SQ, infrared (IR) spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize the thermal decomposition behavior, the crystallization process and the particle size and morphology of the calcined powders. The results indicated that single-phase and well-crystallized Ba1-xSrxTiO3 (x = 0.3) nanopowders with particle size around 80 nut could be obtained after calcining the dried gel at 950 degrees C for 2 h. (C) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

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页码：1105 / 1109

页数：5

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