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dc.contributor.authorKantcheva, M.en_US
dc.date.accessioned2016-02-08T10:37:55Z
dc.date.available2016-02-08T10:37:55Z
dc.date.issued2000en_US
dc.identifier.issn1463-9076
dc.identifier.urihttp://hdl.handle.net/11693/25022
dc.description.abstractA method for deposition of vanadium(v) oxo species from acidic solutions of ammonium metavanadate on zirconia is described. The samples are synthesized by suspension of the support (powder) in solutions containing three different vanadium(V) precursor ions: the dioxovanadium(V) ion, VO2+, the yellow diperoxo anion [VO(O-O)2]- and the red monoperoxo cation [VO(O- O)]+. Application of vanadium(V) peroxo complexes increases significantly the uptake of vanadium by zirconia. The state and localization of the VO(x) species on the surface of zirconia were studied by FTIR, UV/VIS and XP spectroscopies. The materials prepared from VO2+ ions contain isolated VO4 groups and domains of orthovanadate species, (VO4)(n). The FTIR spectra of adsorbed CO revealed that the number of exposed Zr4+ ions decreased markedly when vanadium(v) peroxo ions were used as precursors. The predominant surface structure in this case was identified as pyrovanadates, V2O7. On all of the samples studied no separate phase of V2O5 was detected.en_US
dc.language.isoEnglishen_US
dc.source.titlePhysical Chemistry Chemical Physicsen_US
dc.relation.isversionofhttp://dx.doi.org/10.1039/b001982hen_US
dc.subjectAmmonium vanadateen_US
dc.subjectCationen_US
dc.subjectOrthovanadic aciden_US
dc.subjectVanadiumen_US
dc.subjectZirconium oxideen_US
dc.subjectAbsorption spectroscopyen_US
dc.subjectChemical analysisen_US
dc.subjectOxidationen_US
dc.subjectPhysical chemistryen_US
dc.subjectSynthesisen_US
dc.titleSpectroscopic characterization of vanadium(v) oxo species deposited on zirconiaen_US
dc.typeArticleen_US
dc.departmentDepartment of Chemistry
dc.citation.spage3043en_US
dc.citation.epage3048en_US
dc.citation.volumeNumber2en_US
dc.citation.issueNumber13en_US
dc.identifier.doi10.1039/b001982hen_US
dc.publisherRoyal Society of Chemistryen_US


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