Microwave-assisted synthesis: A fast and efficient route to produce LaMO3 (M = Al, Cr, Mn, Fe, Co) perovskite materials

被引:55
作者
Prado-Gonjal, J. [1 ]
Arevalo-Lopez, A. M. [1 ]
Moran, E. [1 ]
机构
[1] Univ Complutense Madrid, Fac Ciencias Quim, Dept Quim Inorgan, E-28040 Madrid, Spain
关键词
Oxides; Inorganic compounds; Chemical synthesis; Magnetic properties; X-ray diffraction; Thermogravimetric analysis; Crystal structure; HYDROTHERMAL SYNTHESIS; OXYGEN STOICHIOMETRY; RAPID SYNTHESIS; LAFEO3; OXIDES; CATHODE;
D O I
10.1016/j.materresbull.2010.11.010
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A series of lanthanum perovskites, LaMO3 (M = Al, Cr, Mn, Fe, Co), having important technological applications, have been successfully prepared by a very fast, inexpensive, reproducible, environment-friendly method: the microwave irradiation of the corresponding mixtures of nitrates. Worth to note, the microwave source is a domestic microwave oven. In some cases the reaction takes place in a single step, while sometimes further annealings are necessary. For doped materials the method has to be combined with others such as sol-gel. Usually, nanopowders are produced which yield high density pellets after sintering. Rietveld analysis, oxygen stoichiometry, microstructure and magnetic measurements are presented. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:222 / 230
页数:9
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