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Investigation of low-temperature chemisorption of oxygen on magnesium and aluminum oxides with applied molybdenum by the EPR method

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

Conclusions

  1. 1.

    Chiefly Mo4+ ions are responsible for the chemisorption of oxygen at 25°.

  2. 2.

    The adsorption of oxygen at 25° leads to the formation of an O2 − ion radical, stabilized at the cation of the lattice of the carrier.

  3. 3.

    Stabilization of the ion radical O2 − at applied Mo ions is possible only at lower temperatures.

  4. 4.

    The transfer of an electron from an applied Mo5+ or Mo4+ ion through the lattice of the carrier seems relatively improbable in the case of Al2O3, while in the case of MgO only the ions of the lattice that are the closest neighbors of molybdenum participate in this process.

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Authors and Affiliations

  1. Institute of Chemical Physics, Academy of Sciences of the USSR, USSR

    K. N. Spiridonov, G. B. Pariiskii & O. V. Krylov

Authors
  1. K. N. Spiridonov
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  2. G. B. Pariiskii
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  3. O. V. Krylov
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 10, pp. 2161–2167, October, 1971.

In conlusion, we should like to thank P. G. Krivenkov for performing the measurements of the surface of our samples.

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Spiridonov, K.N., Pariiskii, G.B. & Krylov, O.V. Investigation of low-temperature chemisorption of oxygen on magnesium and aluminum oxides with applied molybdenum by the EPR method. Russ Chem Bull 20, 2043–2048 (1971). https://doi.org/10.1007/BF00851246

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  • DOI: https://doi.org/10.1007/BF00851246

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