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.

引用

页码：186 / 191

页数：6

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