http://www.cnr.it/ontology/cnr/individuo/prodotto/ID57388
Pd-promoted WOx/ZrO2 catalysts: characterization and catalytic activity for n-butane isomerization (Articolo in rivista)
- Type
- Label
- Pd-promoted WOx/ZrO2 catalysts: characterization and catalytic activity for n-butane isomerization (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.apcata.2008.08.025 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- M. Occhiuzzi (a); D. Cordischi (a); S. De Rossi (b); G. Ferraris (b); D. Gazzoli (a); M. Valigi (a) (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- fasc. (1). Elsevier. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- (a) Dipartimento di Chimica, Università di Roma \"La Sapienza\", P.le A. Moro 5, 00185 Roma, Italy
(b) Istituto dei Sistemi Complessi (ISC) CNR, P.le A. Moro 5, 00185 Roma, Italy (literal)
- Titolo
- Pd-promoted WOx/ZrO2 catalysts: characterization and catalytic activity for n-butane isomerization (literal)
- Abstract
- The need for environmental friendly catalysts for alkane isomerization has prompted research on the WOx/ZrO2 system. Suitable promoters may improve its activity and stability. We investigated the effect of palladium on WOx/ZrO2 redox properties and catalytic activity for n-butane isomerization. Pd favoured the reduction of WxOy clusters already at RT (redox cycles O2/H2) and in reduced samples EPR identified W5+ surface species.
Increasing Pd dispersion increased the catalytic activity. Leached and pre-reduced catalysts resulted to have the highest activity, suggesting that the most active species are WxOy clusters anchored to zirconia surface and interacting with near Pd hydride. For n-butane isomerization Pd-promotion is as effective as Pt-promotion. (literal)
- Autore CNR
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