Vanadate conformation variations in vanadium pentoxide nanostructures

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dc.contributor.authorO'Dwyer, Colm
dc.contributor.authorLavayen, Vladimir
dc.contributor.authorNewcomb, Simon B.
dc.contributor.authorSanta-Ana, María A.
dc.contributor.authorBenavente, Eglantina
dc.contributor.authorGonzalez, Guillermo
dc.contributor.authorSotomayor Torres, Clivia M.
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderFondo Nacional de Desarrollo Científico y Tecnológico, Chileen
dc.contributor.funderUniversidad Tecnológica Metropolitana, Chileen
dc.contributor.funderUniversidad de Chileen
dc.date.accessioned2016-07-07T14:19:03Z
dc.date.available2016-07-07T14:19:03Z
dc.date.issued2007-06-18
dc.date.updated2012-11-29T20:59:20Z
dc.description.abstractWe report the comparative structural-vibrational study of nanostructures of nanourchins, nanotubes, and nanorods of vanadium oxide. The tube walls comprise layers of vanadium oxide with the organic surfactant intercalated between atomic layers. Both Raman scattering and infrared spectroscopies showed that the structure of nanourchins, nanotubes, and nanorods of vanadium oxide nanocomposite are strongly dependent on the valency of the vanadium, its associated interactions with the organic surfactant template, and on the packing mechanism and arrangement of the surfactant between vanadate layers. Accurate assignment of the vibrational modes to the V-O coordinations has allowed their comparative classification and relation to atomic layer structure. Although all structures are formed from the same precursor, differences in vanadate conformations due to the hydrothermal treatment and surfactant type result in variable degrees of crystalline order in the final nanostructure. The nanotube-containing nanourchins contain vanadate layers in the nanotubes that are in a distorted γ- V5+ conformation, whereas the the nanorods, by comparison, show evidence for V5+ and V4+ species-containing ordered VOx lamina.en
dc.description.sponsorshipScience Foundation Ireland (SFI grant no. 02/IN.1/172); Fondo Nacional de Desarrollo Científico y Tecnológico, Chile (FOND ECyT grants 1050344, 1030102, 7050081); Universidad de Chile; Universidad Tecnológica Metropolitana, Chile; European Commission (PhOREMOST FP6/2003/IST/2-511616);en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationO'Dwyer, C., Lavayen, V., Newcomb, S. B., Santa Ana, M. A., Benavente, E., Gonzalez, G., and Sotomayor Torres, M. A. (2007) 'Vanadate conformation variations in vanadium pentoxide nanostructures'. Journal of the Electrochemical Society, 154(8), pp. K29-K35. http://jes.ecsdl.org/content/154/8/K29.abstracten
dc.identifier.doi10.1149/1.2746556
dc.identifier.endpageK35en
dc.identifier.issn0013-4651
dc.identifier.issued8en
dc.identifier.journaltitleJournal of the Electrochemical Societyen
dc.identifier.startpageK29en
dc.identifier.urihttps://hdl.handle.net/10468/2837
dc.identifier.volume154en
dc.language.isoenen
dc.publisherElectrochemical Societyen
dc.rights© 2007 The Electrochemical Society. All rights reserved.en
dc.subjectVanadium compoundsen
dc.subjectNanotubesen
dc.subjectNanocompositesen
dc.subjectRaman spectraen
dc.subjectOrganic compoundsen
dc.subjectSurfactantsen
dc.subjectInfrared spectraen
dc.subjectIntercalation compoundsen
dc.subjectPhononsen
dc.titleVanadate conformation variations in vanadium pentoxide nanostructuresen
dc.typeArticle (peer-reviewed)en
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