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Preparation, characterization, and catalytic behavior of MoRh2O6 supported on SiO2

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Abstract

Rh double-oxide compound (MoRh2O6) supported on SiO2 was prepared by air calcination treatment of a molybdenum oxide-promoted Rh/SiO2 catalyst at 700 °C, and the chemisorptive and catalytic properties of the compound, as well as the changes in those behaviors by H2 reduction, have been studied.

The MoRh2O6/SiO2 catalyst exhibited almost no ability of H2 and CO chemisorption, but a high activity for CO oxidation reaction. After H2 treatment at 200 °C, X-ray diffraction showed that the MoRh2O6 compound was reduced to a MoRh alloy, and this catalyst now exhibited a significant activity for the hydrogenolysis of cyclohexane. A drastic decrease in the activity was, however, observed after H2 treatment at 500 °C.

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Authors and Affiliations

  1. Institute of Materials Science, University of Tsukuba, 305, Ibaraki, Japan

    K. Kunimori, T. Wakasugi, F. Yamakawa, H. Oyanagi, J. Nakamura & T. Uchijima

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  1. K. Kunimori
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  2. T. Wakasugi
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  3. F. Yamakawa
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  4. H. Oyanagi
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  5. J. Nakamura
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  6. T. Uchijima
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Kunimori, K., Wakasugi, T., Yamakawa, F. et al. Preparation, characterization, and catalytic behavior of MoRh2O6 supported on SiO2 . Catal Lett 9, 331–337 (1991). https://doi.org/10.1007/BF00764823

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  • DOI: https://doi.org/10.1007/BF00764823

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