Sonochemical synthesis and characterization of the biphasic compound Na2Ti3O7/Na2Ti6O13

Detalhes bibliográficos
Autor(a) principal: Chaar, S. M.
Data de Publicação: 2021
Outros Autores: Da Silva, J. P., Nobre, F. X., Passos, J., Aguilera, L., Silva, J. H.L., Silva, R. S., Guerrero, F., Pontes, F. M. [UNESP], Leyet, Y.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/1980-5373-MR-2021-0011
http://hdl.handle.net/11449/222040
Resumo: This study processed and characterized the biphasic ceramics Na2Ti3O7/Na2Ti6O13that were obtained from semi-crystalline nanoparticles synthesized using sonochemical methods. Structural characterization techniques, such as X-ray diffraction and Raman spectroscopy, were used to identify the crystalline phases present. The Rietveld refinement revealed, among other structural parameters, the presence of two crystalline phases in compositions of 55.90% and 44.10% for sodium hexatitanate and trititanate, respectively. Via Raman spectroscopy, the presence of the main vibrational modes that correspond to the phases present in biphasic ceramics was confirmed. Finally, by using complex impedance spectroscopy, a decrease in the electrical resistance of both the grain (106Ω-104Ω) and its boundary (108Ω-105Ω) under increasing temperature was identified.
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spelling Sonochemical synthesis and characterization of the biphasic compound Na2Ti3O7/Na2Ti6O13Biphasic ceramics Na2Ti3O7/Na2Ti6O13Complex impedance spectroscopyRietveld refinementSonochemical methodThis study processed and characterized the biphasic ceramics Na2Ti3O7/Na2Ti6O13that were obtained from semi-crystalline nanoparticles synthesized using sonochemical methods. Structural characterization techniques, such as X-ray diffraction and Raman spectroscopy, were used to identify the crystalline phases present. The Rietveld refinement revealed, among other structural parameters, the presence of two crystalline phases in compositions of 55.90% and 44.10% for sodium hexatitanate and trititanate, respectively. Via Raman spectroscopy, the presence of the main vibrational modes that correspond to the phases present in biphasic ceramics was confirmed. Finally, by using complex impedance spectroscopy, a decrease in the electrical resistance of both the grain (106Ω-104Ω) and its boundary (108Ω-105Ω) under increasing temperature was identified.Universidade Federal do Amazonas Departamento de Engenharia de Materiais Laboratório de Processamento de Materiais Tecnológicos (LPMaT), AMUniversidade Federal do Amazonas Departamento de Química Programa de Pós-Graduação em Química, AMUniversidade Federal do Amazonas Departamento de Física Programa de Pós-Graduação em Física, AMUniversidade Federal de Sergipe Departamento de Física, SEUniversidade Estadual Paulista Departamento de Química, Caixa Postal 473, SPUniversidade Estadual Paulista Departamento de Química, Caixa Postal 473, SPLaboratório de Processamento de Materiais Tecnológicos (LPMaT)Programa de Pós-Graduação em QuímicaPrograma de Pós-Graduação em FísicaUniversidade Federal de Sergipe (UFS)Universidade Estadual Paulista (UNESP)Chaar, S. M.Da Silva, J. P.Nobre, F. X.Passos, J.Aguilera, L.Silva, J. H.L.Silva, R. S.Guerrero, F.Pontes, F. M. [UNESP]Leyet, Y.2022-04-28T19:42:04Z2022-04-28T19:42:04Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1590/1980-5373-MR-2021-0011Materials Research, v. 24.1980-53731516-1439http://hdl.handle.net/11449/22204010.1590/1980-5373-MR-2021-00112-s2.0-85111139739Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Researchinfo:eu-repo/semantics/openAccess2022-04-28T19:42:04Zoai:repositorio.unesp.br:11449/222040Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:42:04Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Sonochemical synthesis and characterization of the biphasic compound Na2Ti3O7/Na2Ti6O13
title Sonochemical synthesis and characterization of the biphasic compound Na2Ti3O7/Na2Ti6O13
spellingShingle Sonochemical synthesis and characterization of the biphasic compound Na2Ti3O7/Na2Ti6O13
Chaar, S. M.
Biphasic ceramics Na2Ti3O7/Na2Ti6O13
Complex impedance spectroscopy
Rietveld refinement
Sonochemical method
title_short Sonochemical synthesis and characterization of the biphasic compound Na2Ti3O7/Na2Ti6O13
title_full Sonochemical synthesis and characterization of the biphasic compound Na2Ti3O7/Na2Ti6O13
title_fullStr Sonochemical synthesis and characterization of the biphasic compound Na2Ti3O7/Na2Ti6O13
title_full_unstemmed Sonochemical synthesis and characterization of the biphasic compound Na2Ti3O7/Na2Ti6O13
title_sort Sonochemical synthesis and characterization of the biphasic compound Na2Ti3O7/Na2Ti6O13
author Chaar, S. M.
author_facet Chaar, S. M.
Da Silva, J. P.
Nobre, F. X.
Passos, J.
Aguilera, L.
Silva, J. H.L.
Silva, R. S.
Guerrero, F.
Pontes, F. M. [UNESP]
Leyet, Y.
author_role author
author2 Da Silva, J. P.
Nobre, F. X.
Passos, J.
Aguilera, L.
Silva, J. H.L.
Silva, R. S.
Guerrero, F.
Pontes, F. M. [UNESP]
Leyet, Y.
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Laboratório de Processamento de Materiais Tecnológicos (LPMaT)
Programa de Pós-Graduação em Química
Programa de Pós-Graduação em Física
Universidade Federal de Sergipe (UFS)
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Chaar, S. M.
Da Silva, J. P.
Nobre, F. X.
Passos, J.
Aguilera, L.
Silva, J. H.L.
Silva, R. S.
Guerrero, F.
Pontes, F. M. [UNESP]
Leyet, Y.
dc.subject.por.fl_str_mv Biphasic ceramics Na2Ti3O7/Na2Ti6O13
Complex impedance spectroscopy
Rietveld refinement
Sonochemical method
topic Biphasic ceramics Na2Ti3O7/Na2Ti6O13
Complex impedance spectroscopy
Rietveld refinement
Sonochemical method
description This study processed and characterized the biphasic ceramics Na2Ti3O7/Na2Ti6O13that were obtained from semi-crystalline nanoparticles synthesized using sonochemical methods. Structural characterization techniques, such as X-ray diffraction and Raman spectroscopy, were used to identify the crystalline phases present. The Rietveld refinement revealed, among other structural parameters, the presence of two crystalline phases in compositions of 55.90% and 44.10% for sodium hexatitanate and trititanate, respectively. Via Raman spectroscopy, the presence of the main vibrational modes that correspond to the phases present in biphasic ceramics was confirmed. Finally, by using complex impedance spectroscopy, a decrease in the electrical resistance of both the grain (106Ω-104Ω) and its boundary (108Ω-105Ω) under increasing temperature was identified.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
2022-04-28T19:42:04Z
2022-04-28T19:42:04Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/1980-5373-MR-2021-0011
Materials Research, v. 24.
1980-5373
1516-1439
http://hdl.handle.net/11449/222040
10.1590/1980-5373-MR-2021-0011
2-s2.0-85111139739
url http://dx.doi.org/10.1590/1980-5373-MR-2021-0011
http://hdl.handle.net/11449/222040
identifier_str_mv Materials Research, v. 24.
1980-5373
1516-1439
10.1590/1980-5373-MR-2021-0011
2-s2.0-85111139739
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Materials Research
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1797790131919257600

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