Pure and doped lanthanum manganites obtained by combustion method

被引：42
|
作者：
Berger, D.
Matei, C.
Papa, F.
Macovei, D.
Fruth, V.
Deloume, J. P.
机构：
[1] Politehnica Univ Bucharest, Bucharest 011061, Romania
[2] Romanian Acad, Inst Phys Chem, Bucharest, Romania
[3] Natl Inst Mat Phys, RO-76900 Bucharest, Romania
[4] Univ Lyon, CNRS, UMR 5256, IRCELYON, F-69626 Villeurbanne, France
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2007年 / 27卷 / 13-15期
关键词：
nanomaterials; perovskites; powders-chemical preparation; manganites;
D O I：
10.1016/j.jeurceramsoc.2007.02.164
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Pure and strontium-doped lanthanum manganite nanopowders were obtained by solution combustion method using metal nitrates as oxidants and different organic compounds as fuel (alpha-alanine, glycine, urea and semioxamazide). Different molar ratios, fuel/oxidant, were chosen to study the effect of the fuel content on the phase formation and powder properties. The complex precursors isolated before ignition of the system, were characterized by FT-IR spectroscopy and thermal analysis. After ignition, the as-synthesized powders were calcined at different temperatures for obtaining single phases. Lanthanum manganite powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), specific surface area and magnetic measurements. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4395 / 4398
页数：4
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