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Crystallization study of SrSnO3:Fe

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dc.contributor.authorVieira, F. T. G.
dc.contributor.authorOliveira, A. L. M.
dc.contributor.authorMelo, D. S.
dc.contributor.authorLima, S. J. G.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorMaia, A. S.
dc.contributor.authorSouza, A. G.
dc.contributor.authorSantos, I. M. G.
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:31:09Z
dc.date.available2014-05-20T15:31:09Z
dc.date.issued2011-11-01
dc.description.abstractAlkaline earth stannates have recently become important materials in ceramic technology due to its application as humidity sensor. In this work, alkaline earth stannates doped with Fe3+ were synthesized by the polymeric precursor method, with calcination at 300 A degrees C/7 h and between 400 and 1100 A degrees C/4 h. The powder precursors were characterized by TG/DTA after partial elimination of carbon. Characterization after the second calcination step was done by X-ray diffraction, infrared spectroscopy, and UV-vis spectroscopy. Results confirmed the formation of the SrSnO3:Fe with orthorhombic perovskite structure, besides SrCO3 as secondary phase. Crystallization occurred at 600 A degrees C, being much lower than the crystallization temperature of perovskites synthesized by solid state reaction. The analysis of TG curves indicated that the phase crystallization was preceded by two thermal decomposition steps. Carbonate elimination occurred at two different temperatures, around 800 A degrees C and above 1000 A degrees C.en
dc.description.affiliationUniversidade Federal da Paraíba (UFPB), Dept Quim, Lab Combustiveis & Mat INCTMN, BR-58059900 Joao Pessoa, Paraiba, Brazil
dc.description.affiliationUniversidade Federal da Paraíba (UFPB), LSR, Dept Engn Mecan CT, BR-58059900 Joao Pessoa, Paraiba, Brazil
dc.description.affiliationUNESP, Inst Quim, LIEC INCTMN, Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Quim, LIEC INCTMN, Araraquara, SP, Brazil
dc.format.extent507-512
dc.identifierhttp://dx.doi.org/10.1007/s10973-011-1509-6
dc.identifier.citationJournal of Thermal Analysis and Calorimetry. Dordrecht: Springer, v. 106, n. 2, p. 507-512, 2011.
dc.identifier.doi10.1007/s10973-011-1509-6
dc.identifier.issn1388-6150
dc.identifier.urihttp://hdl.handle.net/11449/40362
dc.identifier.wosWOS:000296065100032
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.subjectTG/DTAen
dc.subjectFe3+en
dc.subjectCrystallizationen
dc.titleCrystallization study of SrSnO3:Feen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentBioquímica e Tecnologia - IQpt

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Araraquara - IQAR - Instituto de Química