Microwave-assisted synthesis: A fast and efficient route to produce LaMO{sub 3} (M = Al, Cr, Mn, Fe, Co) perovskite materials

Research highlights: {yields} Lanthanum perovskites can be prepared by microwave irradiation in a domestic set-up. {yields} Microwave-assisted synthesis yields well crystallized and pure materials, sometimes nanosized. {yields} Rietveld analysis has been performed to refine the structures. {yields}...

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Bibliographic Details
Published inMaterials research bulletin Vol. 46; no. 2
Main Authors Prado-Gonjal, J., Arevalo-Lopez, A.M., Moran, E.
Format Journal Article
LanguageEnglish
Published United States 15.02.2011
Subjects
CRYSTAL STRUCTURE
DOPED MATERIALS
INORGANIC COMPOUNDS
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
IRRADIATION
LANTHANUM
MAGNETIC PROPERTIES
MATERIALS SCIENCE
MICROSTRUCTURE
NANOSCIENCE AND NANOTECHNOLOGY
NANOSTRUCTURES
OXIDES
PEROVSKITE
SYNTHESIS
THERMAL GRAVIMETRIC ANALYSIS
X-RAY DIFFRACTION
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Summary:Research highlights: {yields} Lanthanum perovskites can be prepared by microwave irradiation in a domestic set-up. {yields} Microwave-assisted synthesis yields well crystallized and pure materials, sometimes nanosized. {yields} Rietveld analysis has been performed to refine the structures. {yields} Magnetic and electric measurements are similar to those previously reported. {yields} Microwave-assisted synthesis is a fast and efficient method for the synthesis of lanthanum perovskites. -- Abstract: A series of lanthanum perovskites, LaMO{sub 3} (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.
ISSN:0025-5408
1873-4227
DOI:10.1016/J.MATERRESBULL.2010.11.010