Role of the oriented attachment mechanism in the phase transformation of oxide nanocrystals

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dc.contributor.authorRibeiro, Caue
dc.contributor.authorVila, Cristiane
dc.contributor.authorde Matos, Jose Milton Elias
dc.contributor.authorBettini, Jefferson
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorLeite, Edson R.
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Federal do Piauí (UFPI)
dc.contributor.institutionLab Nacl Luz Sincroton
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:24:43Z
dc.date.available2014-05-20T15:24:43Z
dc.date.issued2007-01-01
dc.description.abstractBottom-up methods to obtain nanocrystals usually result in metastable phases, even in processes carried out at room temperature or under soft annealing conditions. However, stable phases, often associated with anisotropic shapes, are obtained in only a few special cases. In this paper we report on the synthesis of two well-studied oxides-titanium and zirconium oxide-in the nanometric range, by a novel route based on the decomposition of peroxide complexes of the two metals under hydrothermal soft conditions, obtaining metastable and stable phases in both cases through transformation. High-resolution transmission electron microscopy analysis reveals the existence of typical defects relating to growth by the oriented attachment mechanism in the stable crystals. The results suggest that the mechanism is associated to the phase transformation of these structures.en
dc.description.affiliationEMBRAPA Instrumentacao Agropecuaria, BR-14523560 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Fed Sao Carlos, Dept Quim, LIEC, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Fed Piaui, Dept Quim, BR-64049550 Teresina, PI, Brazil
dc.description.affiliationLab Nacl Luz Sincroton, Campinas, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Quim, LIEC, Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Quim, LIEC, Araraquara, SP, Brazil
dc.format.extent5798-5803
dc.identifierhttp://dx.doi.org/10.1002/chem.200700034
dc.identifier.citationChemistry-a European Journal. Weinheim: Wiley-v C H Verlag Gmbh, v. 13, n. 20, p. 5798-5803, 2007.
dc.identifier.doi10.1002/chem.200700034
dc.identifier.issn0947-6539
dc.identifier.lattes8498310891810082
dc.identifier.urihttp://hdl.handle.net/11449/35277
dc.identifier.wosWOS:000248062700011
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofChemistry-a European Journal
dc.relation.ispartofjcr5.160
dc.relation.ispartofsjr2,265
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectcrystal growthpt
dc.subjectnanostructurespt
dc.subjectoriented attachmentpt
dc.subjectphase transitionspt
dc.titleRole of the oriented attachment mechanism in the phase transformation of oxide nanocrystalsen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
unesp.author.lattes8498310891810082
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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