Influence of Cu(II) in the SrSnO3 crystallization

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dc.contributor.authorMelo, D.
dc.contributor.authorMarinho, R. M. M.
dc.contributor.authorVieira, F. T. G.
dc.contributor.authorLima, S. J. G.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorSouza, A. G.
dc.contributor.authorMaia, A. S.
dc.contributor.authorSantos, I. M. G.
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:32:49Z
dc.date.available2014-05-20T15:32:49Z
dc.date.issued2011-11-01
dc.description.abstractPerovskite type oxides have been intensively studied due to their interesting optical, electrical, and catalytic properties. Among perovskites the alkaline earth stannates stand out, being strontium stannates (SrSnO3) the most important material in ceramic technology among them due to their wide application as dielectric component. SrSnO3 has also been applied as stable capacitor and humidity sensor. In the present work, SrSnO3:Cu was synthesized by polymeric precursor method and heat treated at 700, 800, and 900 A degrees C for 4 h. After that, the material was characterized by thermal analysis (TG/DTA), X-ray diffraction (XRD), infrared spectroscopy, and UV-vis spectroscopy. Results indicated three thermal decomposition steps and confirmed the presence of strontium carbonate and Cu2+ reduction to Cu+ at higher dopant amounts. XRD patterns indicated that the perovskite crystallization started at 700 A degrees C with strontiatite (SrCO3) and cassiterite (SnO2) as intermediate phases, disappearing at higher temperatures. The amount of secondary phase was reduced with the increase in the Cu concentration.en
dc.description.affiliationUniversidade Federal da Paraíba (UFPB), Lab Combustiveis & Mat INCTMN, Joao Pessoa, Paraiba, Brazil
dc.description.affiliationUniversidade Federal da Paraíba (UFPB), LSR, Depto Engn Mecan CT, Joao Pessoa, Paraiba, Brazil
dc.description.affiliationUNESP, Inst Quim, LIEC CMDMC INCTMN, Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Quim, LIEC CMDMC INCTMN, Araraquara, SP, Brazil
dc.format.extent513-517
dc.identifierhttp://dx.doi.org/10.1007/s10973-011-1526-5
dc.identifier.citationJournal of Thermal Analysis and Calorimetry. Dordrecht: Springer, v. 106, n. 2, p. 513-517, 2011.
dc.identifier.doi10.1007/s10973-011-1526-5
dc.identifier.issn1388-6150
dc.identifier.urihttp://hdl.handle.net/11449/41617
dc.identifier.wosWOS:000296065100033
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal of Thermal Analysis and Calorimetry
dc.relation.ispartofjcr2.209
dc.relation.ispartofsjr0,587
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectStrontium stannateen
dc.subjectCopperen
dc.subjectTG/DTAen
dc.subjectPolymeric precursor method and perovskiteen
dc.titleInfluence of Cu(II) in the SrSnO3 crystallizationen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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