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Dehydrogenation of Propane with СО2 on Supported CrOx/SiO2 Catalysts

  • PHYSICAL CHEMISTRY OF HYBRID NANOMATERIALS AND MULTICOMPONENT SYSTEMS
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Abstract

A systematic analysis was performed of the physicochemical properties of amorphous silicas (Acros, Degussa, KSKG) and CrOx/SiO2 catalysts prepared from them with 2, 3, 5, 7, and 10 wt % chromium. The supports and catalysts were characterized by BET, XRD, and UV–Vis diffuse reflectance spectroscopy. In the oxidative dehydrogenation of propane with carbon dioxide, the highest propylene selectivity (95%) was observed for the 5% CrOx/SiO2 (Degussa) sample, and the highest propane conversion (53%) was reported on the 5% CrOx/SiO2 (Acros) catalyst. The structure of chromium oxide particles on the support surface was studied by UV–Vis spectroscopy. The catalytic properties were correlated with the state of chromium.

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ACKNOWLEDGMENTS

The authors are grateful to Dr. D.Yu. Kultin (Chemistry Department, Moscow State University) for his help with UV–Vis spectral studies of the catalysts and supports. This study was financially supported by the Russian scientific Foundation (project no. 14-50-00126).

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Authors and Affiliations

  1. Department of Chemistry, Moscow State University, 119991, Moscow, Russia

    M. A. Tedeeva, A. L. Kustov, P. V. Pribytkov, A. V. Leonov & S. F. Dunaev

  2. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russia

    A. L. Kustov

Authors
  1. M. A. Tedeeva
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  2. A. L. Kustov
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  3. P. V. Pribytkov
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  4. A. V. Leonov
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  5. S. F. Dunaev
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Corresponding author

Correspondence to P. V. Pribytkov.

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Translated by L. Smolina

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Tedeeva, M.A., Kustov, A.L., Pribytkov, P.V. et al. Dehydrogenation of Propane with СО2 on Supported CrOx/SiO2 Catalysts. Russ. J. Phys. Chem. 92, 2403–2407 (2018). https://doi.org/10.1134/S0036024418120403

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  • DOI: https://doi.org/10.1134/S0036024418120403

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