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dc.creatorPieck, Carlos Luis-
dc.creatorDel Val, S.-
dc.creatorLópez Granados, M.-
dc.creatorBañares, M. A.-
dc.creatorFierro, J. L. G.-
dc.date2018-04-10T17:21:53Z-
dc.date2018-04-10T17:21:53Z-
dc.date2002-04-
dc.date2018-03-16T15:41:19Z-
dc.date.accessioned2019-04-29T15:52:04Z-
dc.date.available2019-04-29T15:52:04Z-
dc.date.issued2002-04-
dc.identifierPieck, Carlos Luis; Del Val, S.; López Granados, M.; Bañares, M. A.; Fierro, J. L. G.; Bulk and Surface Structures of V2 O5 /ZrO2 Systems and Their Relevance for o -Xylene Oxidation; American Chemical Society; Langmuir; 18; 7; 4-2002; 2642-2648-
dc.identifier0743-7463-
dc.identifierhttp://hdl.handle.net/11336/41530-
dc.identifierCONICET Digital-
dc.identifierCONICET-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/304121-
dc.descriptionZirconia-supported vanadium oxide systems, with V2O5 loadings ranging from V/Zr ) 0.033-0.270 atom ratios (0.2-2 monolayers), were prepared by impregnation of a porous ZrO2 substrate with ammonium metavanadate solutions. The surface structures of air-calcined samples were elucidated by Raman and X-ray photoelectron spectroscopic techniques and thermal desorption methods. Some insight into how the bulk structures of these materials developed upon thermal treatment was derived from the X-ray diffraction patterns and temperature-programmed reduction. At low V content, surface-dispersed vanadium oxide species were formed, which produced the transformation of the ZrO2 support from the tetragonal phase into the monoclinic one. At higher vanadium oxide contents, a solid-state reaction between V2O5 and ZrO2 occurred, with subsequent formation of the ZrV2O7 phase, this being the major V-containing phase. The reactivity of these surface structures was examined by looking at their performance for the oxidation of o-xylene to phthalic anhydride. Activity tests indicated that surface vanadium oxide species were more active for the oxidation of o-xylene but had a lower selectivity to phthalic anhydride.-
dc.descriptionFil: Pieck, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España-
dc.descriptionFil: Del Val, S.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España-
dc.descriptionFil: López Granados, M.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España-
dc.descriptionFil: Bañares, M. A.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España-
dc.descriptionFil: Fierro, J. L. G.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherAmerican Chemical Society-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/la0114631-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/la0114631-
dc.rightsinfo:eu-repo/semantics/restrictedAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.subjectIngeniería Medioambiental y Geológica, Geotécnicas-
dc.subjectIngeniería del Medio Ambiente-
dc.subjectINGENIERÍAS Y TECNOLOGÍAS-
dc.titleBulk and Surface Structures of V2 O5 /ZrO2 Systems and Their Relevance for o -Xylene Oxidation-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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