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Study of the ESR method of the nature of the redox centers of mordenites in reactions of formation of cation radicals in the absorption of aromatic hydrocarbons

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

Conclusions

  1. 1.

    The number and activity of the oxidative centers in H-mordenite depend on the conditions of preliminary heat treatment. At low temperatures of heating (150–200°C) in the presence of O2, H-mordenite already acquires the ability to adsorb hydrocarbons with the formation of cation radicals.

  2. 2.

    Decationized mordenites with a degree of substitution of Na+ ions for H+ less than 50% are inactive in the formation of cation radicals.

  3. 3.

    On the basis of the data obtained and an analysis of the interatomic distances in the structure of mordenite, it was hypothesized that during the process of its heat treatment in the presence of O2, together with the centers including Al3+ ions, centers\(\begin{array}{*{20}c} \backslash \\ - \\ / \\ \end{array} Si - O^. \), active in the formation of cations radicals of benzene, arise.

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Authors and Affiliations

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

    A. A. Slinkin, M. I. Loktev, A. L. Klyachko & A. M. Rubinshtein

Authors
  1. A. A. Slinkin
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  2. M. I. Loktev
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  3. A. L. Klyachko
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  4. A. M. Rubinshtein
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1021–1028, May, 1975.

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Slinkin, A.A., Loktev, M.I., Klyachko, A.L. et al. Study of the ESR method of the nature of the redox centers of mordenites in reactions of formation of cation radicals in the absorption of aromatic hydrocarbons. Russ Chem Bull 24, 936–941 (1975). https://doi.org/10.1007/BF00922937

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  • DOI: https://doi.org/10.1007/BF00922937

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