Preparation of perovskite-type LaFexCo1-xO3 by thermal decomposition of heteronuclear complex, La[FexCo1-x(CN)(6)]center dot nH(2)O for electroceramic applications

被引：17

作者：

Sadaoka, Y

Traversa, E

Nunziante, P

Sakamoto, M

机构：

[1] UNIV ROMA TOR VERGATA, DEPT CHEM SCI & TECHNOL, I-00173 ROME, ITALY

[2] YAMAGATA UNIV, FAC SCI, DEPT MAT & BIOL CHEM, YAMAGATA 990, JAPAN

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1997年 / 261卷 / 1-2期

关键词：

perovskite-type oxide; LaFexCo1-xO3; LaFeO3; LaCoO3; heteronuclear cyano complex; thermal decomposition;

D O I：

10.1016/S0925-8388(97)00204-1

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：

Heteronuclear complex, La[FexCo1-x(CN)(6)]. nH(2)O was synthesized and the thermal decomposed products were examined. Single phase of perovskite-type LaFexCo1-xO3 powders were obtained by the thermal decomposition of the complexes even at 600 degrees C. Hexagonal structure is observed for Fe/La<0.5 and orthorhombic (pseudo-cubic) for Fe/La>0.5. From a mechanically mixed and compacted complexes of La[Fe(CN)(6)]. nH(2)O and La[Co(CN)(6)]. nH(2)O, perovskite-type LaFexCo1-xO3 oxide could not be formed by thermal decomposition/sintering even at 1100 degrees C. It is concluded that La[FexCo1-x(CN)(b)]. nH(2)O complex is a suitable precursor to prepare finer and homogeneous perovskite-type LaFexCo1-xO3. (C) 1997 Elsevier Science S.A.

引用

页码：182 / 186

页数：5

共 12 条

[1] THE PREPARATION AND STRUCTURE OF LANTHANUM COBALTIC OXIDE [J].