Hydrothermal synthesis of BaTiO3:: Crystal phase and the Ba2+ ions leaching behavior in aqueous medium

被引：37
作者：
Chen, Changlong [1 ,3 ]
Wei, Yuling [2 ]
Jiao, Xiuling [3 ]
Chen, Dairong [3 ]
机构：
[1] Univ Jinan, Sch Chem & Chem Engn, Jinan 250022, Peoples R China
[2] Shandong Inst Light Ind, Dept Sci & Technol, Jinan 250353, Peoples R China
[3] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2008年 / 110卷 / 01期
关键词：
electronic materials; hydrothermal synthesis; phase transitions; BaTiO3;
D O I：
10.1016/j.matchemphys.2008.01.031
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Continuous phase transition from cubic-to-tetragonal depended on reaction conditions was found in the hydrothermally synthesized BaTiO3. The BaTiO3 particles were characterized by powder X-ray diffraction (XRD), transmission electron microscope (TEM), high resolution TEM (HR-TEM), Raman spectra and thermal gravimetric analysis (TGA) techniques. A competitive process between the kinetic control and the thermodynamic control resulted in the crystal structure transition. In these structure-transitional products, the "cubic-rich" BaTiO3 exhibited a stronger Ba2+ ions leaching ability in aqueous medium compared with the "tetragonal-rich" BaTiO3 because the two types of samples had differences in crystal structures and the amount of lattice defects contained. (C) 2008 Elsevier B.V. All rights reserved.
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页码：186 / 191
页数：6
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