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An efficient microwave-assisted hydrothermal synthesis of BaZrO3 microcrystals: growth mechanism and photoluminescence emissions

dc.contributor.authorMacario, Leilane R. [UNESP]
dc.contributor.authorMoreira, Mario L.
dc.contributor.authorAndres, Juan
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniv Jaume 1
dc.date.accessioned2014-05-20T14:18:34Z
dc.date.available2014-05-20T14:18:34Z
dc.date.issued2010-01-01
dc.description.abstractThe effect of different synthetic conditions (both template and chloride precursor concentration) on the morphologies of BaZrO3 microcrystals was systematically investigated. Three different templates, polyethylene glycol (PEG), cetyltrimethylammonium bromide (CTAB) and sodium dodecylsulfate (SDS), and two different chloride concentrations were used in the experiments. BaZrO3 microcrystals were obtained using the microwave assisted hydrothermal method (MWHT) at 140 degrees C for 40 min. BaZrO3 microstructures were characterized by powder X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), Fourier transform Raman spectroscopy (FT-Raman) and photoluminescence (PL) measurements. The growth mechanism for the formation of BaZrO3 with decaoctahedron-shape was analyzed in detail, and we have found that the nature of the mechanism follows a non-classical growth process involving mesoscale self-assemblies of nanoparticles. Based on these findings, a relationship between the morphology and the photoluminescent behavior is proposed.en
dc.description.affiliationUniv Estadual Paulista, Dept Phys Chem, Inst Chem, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Chem, LIEC, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUniv Jaume 1, Dept Expt Sci, Castellon de La Plana 12071, Spain
dc.description.affiliationUnespUniv Estadual Paulista, Dept Phys Chem, Inst Chem, BR-14800900 Araraquara, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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.sponsorshipSpanish-Brazilian Program
dc.description.sponsorshipIdFAPESP: 98/14324-8
dc.description.sponsorshipIdSpanish-Brazilian Program: PHB2009-0065-PC
dc.format.extent3612-3619
dc.identifierhttp://dx.doi.org/10.1039/c004034g
dc.identifier.citationCrystengcomm. Cambridge: Royal Soc Chemistry, v. 12, n. 11, p. 3612-3619, 2010.
dc.identifier.doi10.1039/c004034g
dc.identifier.issn1466-8033
dc.identifier.urihttp://hdl.handle.net/11449/25597
dc.identifier.wosWOS:000283315900052
dc.language.isoeng
dc.publisherRoyal Soc Chemistry
dc.relation.ispartofCrystEngComm
dc.relation.ispartofjcr3.304
dc.relation.ispartofsjr0,998
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleAn efficient microwave-assisted hydrothermal synthesis of BaZrO3 microcrystals: growth mechanism and photoluminescence emissionsen
dc.typeArtigo
dcterms.licensehttp://www.rsc.org/AboutUs/Copyright/Authordeposition.asp
dcterms.rightsHolderRoyal Soc Chemistry
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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