Glass formation and the structural study of the Sb2O3-SbPO4-WO3 system

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dc.contributor.authorFranco, Douglas Faza [UNESP]
dc.contributor.authorFares, Hssen [UNESP]
dc.contributor.authorDe Souza, Antônio Eduardo [UNESP]
dc.contributor.authorSantagneli, Silvia Helena [UNESP]
dc.contributor.authorNalin, Marcelo [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:19:20Z
dc.date.available2018-12-11T17:19:20Z
dc.date.issued2017-01-01
dc.description.abstractGlasses in the ternary system (Sb2O3)(0.6-x)(SbPO4)(0.4)(WO3)(x), with composition 0.1 ≤ x ≤ 0.5 (in mol %) were studied. The structural changes due to the replacement of Sb2O3 by WO3 have been investigated. It was found that the incorporation of WO3 enhances the thermal stability of the glasses against devitrification when compared to the binary Sb2O3 (0.6)-SbPO4(0.4) composition. The connectivity of the network increases with WO3 content which is consistent with the high values of the glass transition temperature. Raman studies suggest that WO3 incorporation breaks the primary network, constituted by antimony oxide, while a second network containing WO6 octahedral units is built up. Thermal and structural properties were evaluated by differential scanning calorimetry, infrared and Raman spectroscopies, 31P Magic Angle Spinning NMR and X-ray absorption near edge structure (XANES) at L1 and L3 edges of Sb and L1 edge of W atoms.en
dc.description.affiliationSao Paulo State University (Unesp) Institute of Chemistry Department of General and Inorganic Chemistry, 55 Prof. Francisco Degni St
dc.description.affiliationSao Paulo State University (Unesp) Institute of Chemistry Department of Physical Chemistry, 55 Prof. Francisco Degni St
dc.description.affiliationUnespSao Paulo State University (Unesp) Institute of Chemistry Department of General and Inorganic Chemistry, 55 Prof. Francisco Degni St
dc.description.affiliationUnespSao Paulo State University (Unesp) Institute of Chemistry Department of Physical Chemistry, 55 Prof. Francisco Degni St
dc.format.extent51-59
dc.identifierhttp://dx.doi.org/10.26850/1678-4618eqj.v42.1.2017.p51-59
dc.identifier.citationEcletica Quimica, v. 42, n. 1, p. 51-59, 2017.
dc.identifier.doi10.26850/1678-4618eqj.v42.1.2017.p51-59
dc.identifier.issn1678-4618
dc.identifier.issn0100-4670
dc.identifier.lattes3349586880746735
dc.identifier.scopus2-s2.0-85045186496
dc.identifier.urihttp://hdl.handle.net/11449/176164
dc.language.isoeng
dc.relation.ispartofEcletica Quimica
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAntimony
dc.subjectGlasses
dc.subjectRaman spectroscopy
dc.subjectStructural properties
dc.subjectTungsten
dc.titleGlass formation and the structural study of the Sb2O3-SbPO4-WO3 systemen
dc.typeArtigo
unesp.author.lattes3349586880746735

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Artigos - Química Inorgânica - IQ
Artigos - Físico Química - IQ