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State of ruthenium in a type y zeolite and its catalytic activity in the reduction of no

  • Physical Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Summary

  1. 1.

    A Ru form of zeolite Y containing the complex [Ru(NH3)4NOOH]2+ has been obtained. Depending on the conditions of the preparative treatments the ruthenium passed into different valence states: Ru2+, Ru+, Ru0.

  2. 2.

    When the complex cations were decomposed in vacuum and were then treated in H2, the Ru clusters were stabilizedpredominantly in the zeoltic cavities. The decomposition of the complex cations in O2 was accompanied by a reduction of the Ru to the metallic state and its migration to the external surface.

  3. 3.

    The reduced forms of Ru zeolites were most active in the NO + CO reaction. The adsorption of NO or O2 at a reaction temperature leading to the oxidation of the Ru and the formation of more oxidized forms of nitrogen as compared with the initial nitrosyl (case of NO) substantially decreased the rate of the reaction.

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Authors and Affiliations

  1. N. D. Zelinskii Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow

    O. P. Tkachenko, E. S. Shpiro, G. V. Antoshin & Kh. M. Minachev

Authors
  1. O. P. Tkachenko
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  2. E. S. Shpiro
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  3. G. V. Antoshin
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  4. Kh. M. Minachev
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1249–1256, June, 1980.

The authors express their gratitude to workers of the Department of X-Ray Diffraetometry of the Hungarian Academy of Sciences (directed by Prof. A. Kalman) for taking the X-ray diffractograms and to Dr. I. Bondar for taking the IR spectra.

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Tkachenko, O.P., Shpiro, E.S., Antoshin, G.V. et al. State of ruthenium in a type y zeolite and its catalytic activity in the reduction of no. Russ Chem Bull 29, 873–879 (1980). https://doi.org/10.1007/BF00958798

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  • DOI: https://doi.org/10.1007/BF00958798

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