Synthesis of nanocrystalline tetragonal zirconia by a polymeric organometallic method

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dc.contributor.authorQuinelato, Antonio L.
dc.contributor.authorLongo, Elson
dc.contributor.authorLeite, Edson R.
dc.contributor.authorVarela, José A. [UNESP]
dc.contributor.institutionCNEN/COLAB
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-29T08:46:50Z
dc.date.available2022-04-29T08:46:50Z
dc.date.issued1999-01-01
dc.description.abstractA polymeric precursor method based on the Pechini process was successfully used to synthesize zirconia-12 mol% ceria ceramic powders. The influence of the main process variables (citric acid-ethylene glycol ratio, citric acid - total oxides ratio and calcination temperature) on phase formation and powder morphology (surface area and crystallite size) were investigated. The thermal decomposition behavior of the precursor is presented. X-ray diffraction (XRD) patterns of powders revealed a crystalline tetragonal zirconia single-phase, with crystallite diameter ranging from 6 to 15 nm. The BET surface areas were relatively high, reaching 95 m2 g-1. Nitrogen adsorption/desorption on the powders suggested that nonaggregated powders could be attained, depending on the synthesis conditions. Copyright © 1999 John Wiley & Sons, Ltd.en
dc.description.affiliationCNEN/COLAB, Poços de Caldas, MG 37701-970
dc.description.affiliationDepartamento de Química UFSCar, São Carlos, SP 13565-905
dc.description.affiliationInstituto de Química UNESP, Araraquara, SP 14800-900
dc.description.affiliationUnespInstituto de Química UNESP, Araraquara, SP 14800-900
dc.format.extent501-507
dc.identifierhttp://dx.doi.org/10.1002/(SICI)1099-0739(199907)13:7<501
dc.identifier.citationApplied Organometallic Chemistry, v. 13, n. 7, p. 501-507, 1999.
dc.identifier.doi10.1002/(SICI)1099-0739(199907)13:7<501
dc.identifier.issn0268-2605
dc.identifier.scopus2-s2.0-0005358116
dc.identifier.urihttp://hdl.handle.net/11449/231659
dc.language.isoeng
dc.relation.ispartofApplied Organometallic Chemistry
dc.sourceScopus
dc.subjectCeramic
dc.subjectPechini process
dc.subjectX-ray diffraction
dc.subjectZirconia
dc.titleSynthesis of nanocrystalline tetragonal zirconia by a polymeric organometallic methoden
dc.typeArtigo

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