Dehydrogenation of Isobutane to Isobutene over V2O5/gamma-Al2O3 Catalysts: Effects of the Extent of Catalyst Reduction on Catalytic Performance

• Autorzy: Ma, H. , Fu, Y.-H. , Li, Y. , Wang, Z. -L. , Zhu, W. -C. , Wang, G.-J.
• Języki publikacji: EN

Abstrakty

EN

V2O5/_-Al2O3 catalysts for the dehydrogenation of isobutane to isobutene were prepared by impregnation and characterized by BET,H2-TPR, ESR and XPS. Based on our studies of the effects of the extent of catalyst reduction on catalytic performance, we conclude that the V2O5/_-Al2O3 catalytic activity for the dehydrogenation of isobutane is related to the valence state of vanadium present in the catalyst, in the order of V4+> V3+. Furthermore, V4+ species are the main active sites of this reaction under the present reaction conditions.

Słowa kluczowe

EN

dehydrogenation; isobutane; reduction; vanadium oxide

• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2003
• Tom: Vol. 77 / nr 7
• Strony: 903-908
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Ma, H.

• Department of Chemistry, Jilin University, Changchun 130023, China

autor

Fu, Y.-H.

• Department of Chemistry, Jilin University, Changchun 130023, China

autor

Li, Y.

• Department of Chemistry, Jilin University, Changchun 130023, China

autor

Wang, Z. -L.

• Department of Chemistry, Jilin University, Changchun 130023, China

autor

Zhu, W. -C.

• Department of Chemistry, Jilin University, Changchun 130023, China

autor

Wang, G.-J.

• Department of Chemistry, Jilin University, Changchun 130023, China

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