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Preparation of Nanosized LaCoO3 through Calcination of a Hydrothermally Synthesized Precursor
Joint Authors
Sánchez-Ramírez, J. F.
Tepech-Carrillo, L.
Escobedo-Morales, A.
Pérez-Centeno, A.
Chigo-Anota, E.
López-Apreza, E.
Gutiérrez-Gutiérrez, J.
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-07-12
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
A method for obtaining nanosized LaCoO3 crystals from calcination of a precursor powder synthesized by a hydrothermal route is reported.
Details concerning the evolution of the microstructure and formation mechanism of the perovskite phase were studied by powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, Raman spectroscopy, and thermal analysis.
It was found that the morphology of the sample progressively turns from a mix of fibers and rods to interconnected nanocrystals.
It is determined that LaCoO3 phase is produced by a reaction of cobalt and lanthanum oxides, the latter produced by a two-step dehydration process of La(OH)3.
Finally, it was found that nearly stoichiometric LaCoO3 nanocrystals can be obtained at temperatures as low as 850°C.
Nevertheless, whether higher calcination temperatures are used, appropriate reaction times and a controlled atmosphere are required in order to avoid formation of lanthanum carbonates and high density of lattice defects.
American Psychological Association (APA)
Tepech-Carrillo, L.& Escobedo-Morales, A.& Pérez-Centeno, A.& Chigo-Anota, E.& Sánchez-Ramírez, J. F.& López-Apreza, E.…[et al.]. 2016. Preparation of Nanosized LaCoO3 through Calcination of a Hydrothermally Synthesized Precursor. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1109328
Modern Language Association (MLA)
Tepech-Carrillo, L.…[et al.]. Preparation of Nanosized LaCoO3 through Calcination of a Hydrothermally Synthesized Precursor. Journal of Nanomaterials No. 2016 (2016), pp.1-7.
https://search.emarefa.net/detail/BIM-1109328
American Medical Association (AMA)
Tepech-Carrillo, L.& Escobedo-Morales, A.& Pérez-Centeno, A.& Chigo-Anota, E.& Sánchez-Ramírez, J. F.& López-Apreza, E.…[et al.]. Preparation of Nanosized LaCoO3 through Calcination of a Hydrothermally Synthesized Precursor. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1109328
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109328