A low temperature route to prepare LaFeO3 and LaCoO3

被引：46
作者：
Jadhav, A. D.
Gaikwad, A. B.
Samuel, V.
Ravi, V. [1 ]
机构：
[1] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India
[2] Natl Chem Lab, Ctr Mat Characterizat, Pune 411008, Maharashtra, India
[3] Natl Chem Lab, Catalysis Div, Pune 411008, Maharashtra, India
来源：
MATERIALS LETTERS | 2007年 / 61卷 / 10期
关键词：
chemical synthesis; X-ray diffraction; transmission electron microscopy; precipitation; LaFeO3;
D O I：
10.1016/j.matlet.2006.08.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A combination of digestion and further low temperature calcination to crystallize the product was employed to prepare LaFeO3 (LF) and LaCoO3 (LC) powders. Freshly co-precipitated lanthanum and ferric (or cobalt) hydroxide gels by sodium hydroxide were allowed to react at 100 degrees C under refluxing and stirring conditions for 4-6 h. These oven dried powders were heated at 450 degrees C to from crystalline LF (or LC) powders. The phase contents and lattice parameters were investigated by X-ray diffraction (XRD). Transmission electron microscope (TEM) investigations were carried out to examine the morphology and average particle size of these powders. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：2030 / 2032
页数：3
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