Synthesis and structural characterization of nanocrystalline batio3 at various calcination temperatures

Barium titanate (BaTiO3) powders with particle sizes about 50 nm in diameter were synthesized using a hydrothermal route. The powders were characterized using various experimental techniques such as XRD, TEM and Raman spectroscopy, and they showed a good crystallinity and homogeneity without heat tr...

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Autores: Fuentes, Sandra, Céspedes, Francisco|||0000-0001-5444-7113, Muñoz, Pamela, Chávez Ángel, Emigdio|||0000-0002-9783-0806, Padilla Campos, Luis
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:204895
Acceso en línea:https://ddd.uab.cat/record/204895
https://dx.doi.org/urn:doi:10.4067/S0717-97072013000400038
Access Level:acceso abierto
Palabra clave:Hydrothermal synthesis
Nanoparticles
Raman spectroscopy
Theoretical calculations
Transmission electron microscopy
X-ray diffraction
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spelling Synthesis and structural characterization of nanocrystalline batio3 at various calcination temperaturesFuentes, SandraCéspedes, Francisco|||0000-0001-5444-7113Muñoz, PamelaChávez Ángel, Emigdio|||0000-0002-9783-0806Padilla Campos, LuisHydrothermal synthesisNanoparticlesRaman spectroscopyTheoretical calculationsTransmission electron microscopyX-ray diffractionBarium titanate (BaTiO3) powders with particle sizes about 50 nm in diameter were synthesized using a hydrothermal route. The powders were characterized using various experimental techniques such as XRD, TEM and Raman spectroscopy, and they showed a good crystallinity and homogeneity without heat treatments. Also, Raman spectra showed the presence of the tetragonal phase. In addition, various calcination treatments were made to BaTiO3 powders with the purpose to improve their ferroelectric properties. In general, calcination treatments improved the crystallinity and homogeneity of the samples considerably but did not modify the internal structure of the BaTiO3, which was observed in the Raman spectra. On the other hand, from theoretical calculations were established that the cubic phase should be better dielectric in comparison with the tetragonal phase, but this latter would have better optical properties. However, experimental evidences are indicative that the cubic phase would predominate in the synthesis of the compound. 22013-01-0120132013-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/204895https://dx.doi.org/urn:doi:10.4067/S0717-97072013000400038reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengInglésengMinisterio de Ciencia e Innovación https://doi.org/10.13039/501100004837 FIS2009-10150open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2048952026-06-06T12:50:31Z
dc.title.none.fl_str_mv Synthesis and structural characterization of nanocrystalline batio3 at various calcination temperatures
title Synthesis and structural characterization of nanocrystalline batio3 at various calcination temperatures
spellingShingle Synthesis and structural characterization of nanocrystalline batio3 at various calcination temperatures
Fuentes, Sandra
Hydrothermal synthesis
Nanoparticles
Raman spectroscopy
Theoretical calculations
Transmission electron microscopy
X-ray diffraction
title_short Synthesis and structural characterization of nanocrystalline batio3 at various calcination temperatures
title_full Synthesis and structural characterization of nanocrystalline batio3 at various calcination temperatures
title_fullStr Synthesis and structural characterization of nanocrystalline batio3 at various calcination temperatures
title_full_unstemmed Synthesis and structural characterization of nanocrystalline batio3 at various calcination temperatures
title_sort Synthesis and structural characterization of nanocrystalline batio3 at various calcination temperatures
dc.creator.none.fl_str_mv Fuentes, Sandra
Céspedes, Francisco|||0000-0001-5444-7113
Muñoz, Pamela
Chávez Ángel, Emigdio|||0000-0002-9783-0806
Padilla Campos, Luis
author Fuentes, Sandra
author_facet Fuentes, Sandra
Céspedes, Francisco|||0000-0001-5444-7113
Muñoz, Pamela
Chávez Ángel, Emigdio|||0000-0002-9783-0806
Padilla Campos, Luis
author_role author
author2 Céspedes, Francisco|||0000-0001-5444-7113
Muñoz, Pamela
Chávez Ángel, Emigdio|||0000-0002-9783-0806
Padilla Campos, Luis
author2_role author
author
author
author
dc.subject.none.fl_str_mv Hydrothermal synthesis
Nanoparticles
Raman spectroscopy
Theoretical calculations
Transmission electron microscopy
X-ray diffraction
topic Hydrothermal synthesis
Nanoparticles
Raman spectroscopy
Theoretical calculations
Transmission electron microscopy
X-ray diffraction
description Barium titanate (BaTiO3) powders with particle sizes about 50 nm in diameter were synthesized using a hydrothermal route. The powders were characterized using various experimental techniques such as XRD, TEM and Raman spectroscopy, and they showed a good crystallinity and homogeneity without heat treatments. Also, Raman spectra showed the presence of the tetragonal phase. In addition, various calcination treatments were made to BaTiO3 powders with the purpose to improve their ferroelectric properties. In general, calcination treatments improved the crystallinity and homogeneity of the samples considerably but did not modify the internal structure of the BaTiO3, which was observed in the Raman spectra. On the other hand, from theoretical calculations were established that the cubic phase should be better dielectric in comparison with the tetragonal phase, but this latter would have better optical properties. However, experimental evidences are indicative that the cubic phase would predominate in the synthesis of the compound.
publishDate 2013
dc.date.none.fl_str_mv 2
2013-01-01
2013
2013-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/204895
https://dx.doi.org/urn:doi:10.4067/S0717-97072013000400038
url https://ddd.uab.cat/record/204895
https://dx.doi.org/urn:doi:10.4067/S0717-97072013000400038
dc.language.none.fl_str_mv Inglés
eng
Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 FIS2009-10150
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
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