New supported vanadia catalysts for oxidation reactions prepared by sputter deposition

Hdl Handle:
http://hdl.handle.net/10149/58366
Title:
New supported vanadia catalysts for oxidation reactions prepared by sputter deposition
Authors:
Poelman, H. (Hilde); Sels, B. F. E. (Bert); Olea, M. (Maria); Eufinger, K. (Karin); Paul, J. S.; Moens, B.; Sack, I. (Isabelle); Balcaen, V. (Veerle); Bertinchamps, F. (Fabrice); Gaigneaux, E. M. (Eric); Jacobs, P. A. (Peter); Marin, G. B. (Guy); Poelman, D. (Dirk); de Gryse, R. (Roger)
Affiliation:
Ghent University. Department of Solid State Sciences. Surface Physics and Thin Films Division. Belgium; Katholieke Universiteit Leuven. Department of Interphase Chemistry. Centrum voor Oppervlaktechemie en Katalyse. Belgium; Ghent University. Department of Chemical Engineering. Laboratorium voor Petrochemische Techniek. Belgium; Université Catholique de Louvain. Unité de Catalyse et Chimie des Matériaux Divisés. Belgium.
Citation:
Poelman, H. et al. (2007) 'New supported vanadia catalysts for oxidation reactions prepared by sputter deposition', Journal of Catalysis, 245 (1), pp.156-172.
Publisher:
Elsevier
Journal:
Journal of Catalysis
Issue Date:
1-Jan-2007
URI:
http://hdl.handle.net/10149/58366
DOI:
10.1016/j.jcat.2006.09.022
Abstract:
Model vanadia catalysts were synthesised using magnetron sputtering of the active species for precisely controlled and clean catalyst design. Two series of supported vanadia catalysts were produced on inert beads with silica surface: vanadia/silica through single vanadia coating and vanadia/titania/silica by subsequent deposition of titania and vanadia. Loadings were varied by changing deposition time. All catalysts were characterised for structure and reducibility. Catalytic performance was tested by steady-state and transient experiments with propane oxidative dehydrogenation. Both supports yielded similar vanadia structures and equal dispersion. The vanadia loading strongly influenced structure and chemical behaviour. Shorter depositions gave surface vanadia monomers and polymers, whereas for longer depositions, crystalline species developed on either support. In propane oxidative dehydrogenation, very high turnover frequencies were obtained, especially for thinner depositions. An intermediate titania layer strongly influenced the vanadia activity. Maximum activity was obtained for a few vanadia layers supported on titania.
Type:
Article
Keywords:
supported vanadia catalysts; DC magnetron sputtering; oxidative dehydrogenation; propane; DRS; TPR; TAP; transient experiments; steady-state experiments
ISSN:
1090-2694
Rights:
Author can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 13/01/2010]
Citation Count:
12 [Scopus, 13/01/2010]

Full metadata record

DC FieldValue Language
dc.contributor.authorPoelman, H. (Hilde)-
dc.contributor.authorSels, B. F. E. (Bert)-
dc.contributor.authorOlea, M. (Maria)-
dc.contributor.authorEufinger, K. (Karin)-
dc.contributor.authorPaul, J. S.-
dc.contributor.authorMoens, B.-
dc.contributor.authorSack, I. (Isabelle)-
dc.contributor.authorBalcaen, V. (Veerle)-
dc.contributor.authorBertinchamps, F. (Fabrice)-
dc.contributor.authorGaigneaux, E. M. (Eric)-
dc.contributor.authorJacobs, P. A. (Peter)-
dc.contributor.authorMarin, G. B. (Guy)-
dc.contributor.authorPoelman, D. (Dirk)-
dc.contributor.authorde Gryse, R. (Roger)-
dc.date.accessioned2009-04-01T10:50:11Z-
dc.date.available2009-04-01T10:50:11Z-
dc.date.issued2007-01-01-
dc.identifier.citationJournal of Catalysis; 245 (1): 156-172-
dc.identifier.issn1090-2694-
dc.identifier.doi10.1016/j.jcat.2006.09.022-
dc.identifier.urihttp://hdl.handle.net/10149/58366-
dc.description.abstractModel vanadia catalysts were synthesised using magnetron sputtering of the active species for precisely controlled and clean catalyst design. Two series of supported vanadia catalysts were produced on inert beads with silica surface: vanadia/silica through single vanadia coating and vanadia/titania/silica by subsequent deposition of titania and vanadia. Loadings were varied by changing deposition time. All catalysts were characterised for structure and reducibility. Catalytic performance was tested by steady-state and transient experiments with propane oxidative dehydrogenation. Both supports yielded similar vanadia structures and equal dispersion. The vanadia loading strongly influenced structure and chemical behaviour. Shorter depositions gave surface vanadia monomers and polymers, whereas for longer depositions, crystalline species developed on either support. In propane oxidative dehydrogenation, very high turnover frequencies were obtained, especially for thinner depositions. An intermediate titania layer strongly influenced the vanadia activity. Maximum activity was obtained for a few vanadia layers supported on titania.-
dc.publisherElsevier-
dc.rightsAuthor can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 13/01/2010]-
dc.subjectsupported vanadia catalysts-
dc.subjectDC magnetron sputtering-
dc.subjectoxidative dehydrogenation-
dc.subjectpropane-
dc.subjectDRS-
dc.subjectTPR-
dc.subjectTAP-
dc.subjecttransient experiments-
dc.subjectsteady-state experiments-
dc.titleNew supported vanadia catalysts for oxidation reactions prepared by sputter deposition-
dc.typeArticle-
dc.contributor.departmentGhent University. Department of Solid State Sciences. Surface Physics and Thin Films Division. Belgium; Katholieke Universiteit Leuven. Department of Interphase Chemistry. Centrum voor Oppervlaktechemie en Katalyse. Belgium; Ghent University. Department of Chemical Engineering. Laboratorium voor Petrochemische Techniek. Belgium; Université Catholique de Louvain. Unité de Catalyse et Chimie des Matériaux Divisés. Belgium.-
dc.identifier.journalJournal of Catalysis-
ref.assessmentRAE 2008-
ref.citationcount12 [Scopus, 13/01/2010]-
or.citation.harvardPoelman, H. et al. (2007) 'New supported vanadia catalysts for oxidation reactions prepared by sputter deposition', Journal of Catalysis, 245 (1), pp.156-172.-
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