Preparation and characterization of citratoperoxotitanate barium compound for BaTiO3 synthesis

被引：22

作者：

Tada, M ^{[1
]}

Tomita, K ^{[1
]}

Petrykin, V ^{[1
]}

Kakihana, M ^{[1
]}

机构：

[1] Tokyo Inst Technol, Mat & Struct Lab, Div Novel Funct Ceram, Yokohama, Kanagawa 2268503, Japan

来源：

SOLID STATE IONICS | 2002年 / 151卷 / 1-4期

关键词：

citratoperoxotitanate; BaTiO3; barium;

D O I：

10.1016/S0167-2738(02)00726-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An orange precipitate has been obtained from the solution containing antmonium citratoperoxotitanate-(NH4)(8)[Ti-4(C6H4 O-7)(4)(O-2)(4)] and barium nitrate. The powder XRD pattern of this product corresponded to a new phase with the monoclinic unit cell a = 18.345(l) Angstrom, b = 11.0862(9) Angstrom, c= 13.1003(9) Angstrom and beta= 117.133(4)degrees. Based on the TG-DTA, Raman spectroscopy and XRD analysis of the calcination product, we have concluded that the obtained compound is Ba[Ti(C6H4O7)O-2].2H(2)O (Ba-4[Ti-4(C6HO7)(4)(O-2)(4)].8H(2)O, taking into account the structure of the complex anion). This compound has been demonstrated to be a convenient precursor for synthesis of BaTiO3 by simple calcination in air at the reduced temperature of 630 degreesC. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：293 / 297

页数：5

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