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Characterization of new catalysts based on uranium oxides

  • Mechanisms of Catalytic Reactions
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Abstract

Catalysts based on uranium oxides were systematically studied for the first time. Catalysts containing various amounts of uranium oxides (5 and 15%) supported on alumina and mixed Ni-U/Al2O3 catalysts were synthesized. The uranium oxide catalysts were characterized using the thermal desorption of argon, the low-temperature adsorption of nitrogen, X-ray diffraction analysis, and temperature-programmed reduction with hydrogen and CO. The effects of composition, preparation conditions, and thermal treatment on physicochemical properties and catalytic activity in the reactions of methane and butane oxidation, the steam and carbon dioxide reforming of methane, and the partial oxidation of methane were studied. It was found that a catalyst containing 5% U on alumina calcined at 1000°C was most active in the reaction of high-temperature methane oxidation. For the Ni-U/Al2O3 catalysts containing various uranium amounts (from 0 to 30%), the introduction of uranium as a catalyst constituent considerably increased the catalytic activity in methane steam reforming and partial oxidation.

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Authors and Affiliations

  1. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    Z. R. Ismagilov, S. V. Kuntsevich, V. V. Kuznetsov, N. V. Shikina, M. A. Kerzhentsev, V. A. Rogov & V. A. Ushakov

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  1. Z. R. Ismagilov
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  2. S. V. Kuntsevich
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  3. V. V. Kuznetsov
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  4. N. V. Shikina
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  5. M. A. Kerzhentsev
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  6. V. A. Rogov
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  7. V. A. Ushakov
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Original Russian Text © Z.R. Ismagilov, S.V. Kuntsevich, V.V. Kuznetsov, N.V. Shikina, M.A. Kerzhentsev, V.A. Rogov, V.A. Ushakov, 2007, published in Kinetika i Kataliz, 2007, Vol. 48, No. 4, pp. 544–553.

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Ismagilov, Z.R., Kuntsevich, S.V., Kuznetsov, V.V. et al. Characterization of new catalysts based on uranium oxides. Kinet Catal 48, 511–520 (2007). https://doi.org/10.1134/S0023158407040076

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  • DOI: https://doi.org/10.1134/S0023158407040076

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