Bulk and surface structures of V2O5/ZrO2 catalysts for n-butane oxidative dehydrogenation (Articolo in rivista)

Type
Label
  • Bulk and surface structures of V2O5/ZrO2 catalysts for n-butane oxidative dehydrogenation (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.molcata.2009.05.014 (literal)
Alternative label
  • Delia Gazzoli (a); Sergio De Rossi (b); Giovanni Ferraris (b); Giorgio Mattei (c); Roberto Spinicci (d); Mario Valigi (a) (2009)
    Bulk and surface structures of V2O5/ZrO2 catalysts for n-butane oxidative dehydrogenation
    in Journal of molecular catalysis. A, Chemical (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Delia Gazzoli (a); Sergio De Rossi (b); Giovanni Ferraris (b); Giorgio Mattei (c); Roberto Spinicci (d); Mario Valigi (a) (literal)
Pagina inizio
  • 17 (literal)
Pagina fine
  • 23 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S1381116909002623 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 310 (literal)
Rivista
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  • fasc. (1-2). Elsevier. (literal)
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  • 1-2 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (a) Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy (b) Consiglio Nazionale delle Ricerche, Istituto dei Sistemi Complessi, ISC, UOS \"Materiali Inorganici e Catalisi Eterogenea\" (MICE), c/o Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy( c) Consiglio Nazionale delle Ricerche, Istituto dei Sistemi Complessi, ISC, Sezione di Montelibretti (Roma) - Via Salaria Km 29.300, C.P. 10, I-00016 Monterotondo St., Italy (d) Dipartimento di Energetica, Università di Firenze, via S. Marta, 3, I-50139 Florence, Italy (literal)
Titolo
  • Bulk and surface structures of V2O5/ZrO2 catalysts for n-butane oxidative dehydrogenation (literal)
Abstract
  • The present investigation focuses on the structural properties and reactivity of zirconia-supported vanadium oxide catalysts, prepared by equilibrium adsorption in basic (pH 10) or in acid (pH 2.7) conditions with vanadium content up to 6 wt.% (pH 10) and up to 11.6 wt.% (pH 2.7). The samples, heated at 823 K for 5 h in air, were characterized by X-ray diffraction, Raman spectroscopy and TPR, both as prepared and after leaching with an ammonia solution to remove species not anchored to the zirconia surface. Some representative samples were also tested for the n-butane oxidative dehydrogenation (ODH) reaction. Depending on vanadium content, various vanadium species were identified by Raman spectroscopy that reacted differently on exposure to H2. At similar loading, the fraction of vanadium in a dispersed state and thus interacting with the support was higher in samples prepared at pH 10 than in those at pH 2.7. Samples prepared at pH 2.7 contained a higher fraction of large polymeric structures in addition to ZrV2O7 and V2O5. ... ... (literal)
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