Preparation and characterization of uniform, spherical particles of Y2O2S and Y2O2S:Eu

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dc.contributor.authorDelgado Da Vila, Ligia [UNESP]
dc.contributor.authorStucchi, Elizabeth Berwerth [UNESP]
dc.contributor.authorDavolos, Marian Rosaly [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:18:16Z
dc.date.available2014-05-27T11:18:16Z
dc.date.issued1997-10-01
dc.description.abstractThe preparation of spherical Y2O2S and Y2O2S:Eu particles using a solid-gas reaction of monodispersed precursors with elemental sulfur vapor under an argon atmosphere has been investigated. The precursors, undoped and doped yttrium basic carbonates, are synthesized by aging a stock solution containing the respective cation chloride and urea at 82-84 °C. Y2O2S and Y2O2S:Eu were characterized in terms of their composition, crystallinity and morphology by chemical analysis, X-ray powder diffraction (XRD), IR spectroscopy, and scanning electron microscopy (SEM). The Eu-doped oxysulfide was also characterized by atomic absorption spectrophotometry and luminescence spectroscopy. The spherical morphology of oxysulfide products and of basic carbonate precursors suggests a topotatic inter-relationship between both compounds.en
dc.description.affiliationDepartamento de Química Geral e Inorgânica Instituto de Química Universidade Estadual Paulista, C.P. 355, CEP 14801-970, Araraquara, SP
dc.description.affiliationUnespDepartamento de Química Geral e Inorgânica Instituto de Química Universidade Estadual Paulista, C.P. 355, CEP 14801-970, Araraquara, SP
dc.format.extent2113-2116
dc.identifierhttp://dx.doi.org/10.1039/A701540B
dc.identifier.citationJournal of Materials Chemistry, v. 7, n. 10, p. 2113-2116, 1997.
dc.identifier.doi10.1039/A701540B
dc.identifier.issn0959-9428
dc.identifier.lattes9430703714241591
dc.identifier.lattes4284809342546287
dc.identifier.scopus2-s2.0-0007000140
dc.identifier.urihttp://hdl.handle.net/11449/65198
dc.identifier.wosWOS:A1997YA16300025
dc.language.isoeng
dc.relation.ispartofJournal of Materials Chemistry
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titlePreparation and characterization of uniform, spherical particles of Y2O2S and Y2O2S:Euen
dc.typeArtigo
dcterms.licensehttp://www.rsc.org/AboutUs/Copyright/Authordeposition.asp
unesp.author.lattes9430703714241591
unesp.author.lattes4284809342546287
unesp.author.orcid0000-0001-8326-1465[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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