Novel KF-TiO2catalysts for oxidative dehydrogenation of isobutane |
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| Authors: | Yan Huang Yaan Cao Guojia Wang Vicente Cortes Corberan |
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| Affiliation: | (1) Department of Chemistry, Jilin University, P.R. China;(2) Instituto de Catálisis Y Petroleoquímica, Madrid, 28049, España;(3) Department of Chemistry, Jilin University, Changchun, 130023, P.R. China |
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| Abstract: | A novel type of catalysts, KF-TiO2, efficient for the oxidative dehydrogenation (ODH) of isobutane is presented. The effect of KF content and calcination temperature was studied. In the reaction conditions explored, the best performance (73 % selectivity to isobutene at 10.5 % conversion of isobutane) was observed over a catalyst with KF/TiO2 = 0.2 (mol/mol). The surface properties of the catalysts were investigated by SPS (Surface Photo-voltage Spectroscopy) and XPS. The promotion effect of KF in the catalysts can be attributed to the formation of an oxyfluoro-compound, K2Ti4O8F2. |
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| Keywords: | Oxidative dehydrogenation isobutane KF-TiO2 oxyfluoro-compound |
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