Low-temperature synthesis of BiFeO3 nanopowders via a sol-gel method

被引：207

作者：

Xu, Jia-Huan ^{[1
]}

Ke, Hua ^{[1
]}

Jia, De-Chang ^{[1
]}

Wang, Wen ^{[1
]}

Zhou, Yu ^{[1
]}

机构：

[1] Harbin Inst Technol, Inst Adv Ceram, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 472卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

BiFeO3; Sol-gel processes; Thermal analysis; DIELECTRIC-PROPERTIES; BISMUTH; FERRITES; PURE;

D O I：

10.1016/j.jallcom.2008.04.090

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：

Bismuth ferrite (BiFeO3) nanopowders were synthesized by a sol-gel method at the temperature as low as 450 degrees C. The obtained Sol was transparent and homogenous when the mixture ionic concentration was properly controlled with the help of ethylene alcohol. The preparation process of crystalline BiFeO3 could be divided into three stages: (i) the evaporation of organics and decomposition of nitrogen-containing organics below 200 degrees C; (ii) the collapse of Bi-Fe gel network in the temperature range of 200-300 degrees C and (iii) the formation of BiFeO3 nanopowders by the solid-state reaction between Bi2CO3O2 and Fe2O3. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：473 / 477

页数：5

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