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Reflux synthesis and hydrothermal processing of ZrO2 nanopowders at low temperature

dc.contributor.authorMatos, J. M. E.
dc.contributor.authorAnjos Junior, F. M.
dc.contributor.authorCavalcante, L. S. [UNESP]
dc.contributor.authorSantos, V. [UNESP]
dc.contributor.authorLeal, S. H.
dc.contributor.authorSantos Junior, L. S.
dc.contributor.authorSantos, M. R. M. C.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.institutionUniversidade Federal do Piauí (UFPI)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:31:03Z
dc.date.available2014-05-20T15:31:03Z
dc.date.issued2009-10-15
dc.description.abstractIn this paper, we report on the reflux synthesis at 90 degrees C and hydrothermal processing at 120 degrees C for obtention of zirconium oxide (ZrO2) nanopowders under several conditions. These nanopowders; were characterized by X-ray diffraction (XRD), Fourier transform Raman (FT-Raman) spectroscopy, adsorption-desorption N-2-isotherms, Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA) and field-emission scanning electron microscopy (FE-SEM). XRD patterns and Raman spectra indicated that ZrO2 nanopowders present a monoclinic structure. In addition, the hydrothermal processing promoted an increase in crystallinity of ZrO2 nanopowders. FT-IR spectra revealed a small shoulder on the nu (Zr-O) bands in transmittance spectra of the ZrO2 nanopowders. The decomposition of precursor was accompanied by evolution of TGA curves. The morphology of ZrO2 nanopowders was observed by FEG-SEM. Also, the FEG-SEM micrographs revealed that the presence of H2O2 in systems reduced the particle size, while the absence of promoted an increase in particle size. (C) 2009 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Fed Piaui, Lab Interdisciplinar Mat Avancados, CCN, DQ, BR-64049550 Teresina, PI, Brazil
dc.description.affiliationUniv Estadual Paulista, IQ, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationUniv Fed Piaui, DCM, BR-64202020 Parnaiba, PI, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, IQ, BR-14801907 Araraquara, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado do Piauí (FAPEPI)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPEPI: 68.0093/2003-6
dc.format.extent455-459
dc.identifierhttp://dx.doi.org/10.1016/j.matchemphys.2009.06.024
dc.identifier.citationMaterials Chemistry and Physics. Lausanne: Elsevier B.V. Sa, v. 117, n. 2-3, p. 455-459, 2009.
dc.identifier.doi10.1016/j.matchemphys.2009.06.024
dc.identifier.issn0254-0584
dc.identifier.urihttp://hdl.handle.net/11449/40296
dc.identifier.wosWOS:000270770900024
dc.language.isoeng
dc.publisherElsevier B.V. Sa
dc.relation.ispartofMaterials Chemistry and Physics
dc.relation.ispartofjcr2.210
dc.relation.ispartofsjr0,615
dc.rights.accessRightsAcesso restritopt
dc.sourceWeb of Science
dc.subjectOxidesen
dc.subjectChemical synthesisen
dc.subjectScherrer methoden
dc.subjectCrystal structureen
dc.titleReflux synthesis and hydrothermal processing of ZrO2 nanopowders at low temperatureen
dc.typeArtigopt
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V. Sa
dspace.entity.typePublication
relation.isOrgUnitOfPublicationbc74a1ce-4c4c-4dad-8378-83962d76c4fd
relation.isOrgUnitOfPublication.latestForDiscoverybc74a1ce-4c4c-4dad-8378-83962d76c4fd
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentBioquímica e Tecnologia - IQpt

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