Thermal evolution of nanosized LaFeO3 powders from a heteronuclear complex, La[Fe(CN)6]•nH2O

被引：71

作者：

Sadaoka, Y ^{[1
]}

Aono, H

Traversa, E

Sakamoto, M

机构：

[1] Ehime Univ, Fac Engn, Dept Mat Sci & Engn, Matsuyama, Ehime 7908577, Japan

[2] Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, Italy

[3] Yamagata Univ, Fac Sci, Dept Mat & Biol Chem, Yamagata 9908560, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 278卷 / 1-2期

关键词：

LaFeO3; perovskite-type oxide; heteronuclear cyano complex; La[Fe(CN)(6)]center dot nH(2)O; thermal decomposition;

D O I：

10.1016/S0925-8388(98)00602-1

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：

The thermal decomposition of a heteronuclear complex, La[Fe(CN)(6)]. nH(2)O, leads to the preparation of nanosized perovskite-type LaFeO3 powders. The exothermic decomposition of the cyanide groups at 300 degrees C, starting abruptly and the formation of LaFeO3 without the presence of single oxides such as La2O3 and Fe2O3 were observed. The formation of LaFeO3 from the complex involves the formation of carbonates and nitrates, which facilitate the formation of nanosized LaFeO3 powders. Concomitantly formed carbonate and nitrate decomposed gradually and the specific surface area of nanosized LaFeO3 increased up to 38 m(2) g(-1) at 350 degrees C. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：135 / 141

页数：7

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