Nano-crystalline LaFeO3 powders synthesized by the citrate-gel method

被引：46
|
作者：
Shabbir, G. [1 ]
Qureshi, A. H.
Saeed, K.
机构：
[1] PO Nilore, Phys Res Div, Islamabad, Pakistan
[2] PO Nilore, Div Mat, Islamabad, Pakistan
来源：
MATERIALS LETTERS | 2006年 / 60卷 / 29-30期
关键词：
perovskite-type oxide; thermal decomposition; LaFeO3; sol-gel;
D O I：
10.1016/j.matlet.2006.03.093
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel sol-gel process was developed for preparing nano-sized, perovskite-type LaFeO3 powder by the thermal decomposition of the gel-complex of LaFe-(C6H8O7-H2O). The structural evolution has been systematically investigated by X-ray diffraction (XRD), differential thermal analysis (DTA) and thermogavimetric analysis (TGA). Perovskite powder of similar to 25 ran size could be obtained at a temperature of similar to 600 degrees C without formation of any secondary phases of La2O3 and FC2O3 single oxides and no requirements of high temperature/vacuum/pH control etc. Analysis of the X-ray powder diffraction data showed a decrease in the value of lattice strains with increasing decomposition temperature, whereas the particle size increases with increasing decomposition temperature. (c) 2006 Elsevier B.V All rights reserved.
引用
收藏
页码：3706 / 3709
页数：4
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