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Interaction of hydrogen and oxygen on the surface of Ni-SiO2 catalysts

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

Conclusions

  1. 1.

    The chemisorption of O2 on Ni, applied on SiO2, is accompanied both by the oxidation of Ni and by the formation probably of a molecular form of chemisorbed O2.

  2. 2.

    The adsorption of H2 on a surface of Ni entirely covered with oxygen leads to the formation of H2O first according to the Rydil mechanism, and when adsorbed H atoms appear on the freed surface of Ni, according to the Langmuir-Hinshelwood mechanism.

  3. 3.

    The water formed in the first stages of the interaction of H2 with chemisorbed O2 diffuses from the surface of Ni and is chemisorbed on the surface of SiO2. The molecules of H2O formed in subsequent events of interaction are also adsorbed on the surface of SiO2 but are readily desorbed from it at room temperature.

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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, A. V. Kucherov & A. M. Rubinshtein

Authors
  1. A. A. Slinkin
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  2. A. V. Kucherov
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  3. A. M. Rubinshtein
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 17–24, January, 1975.

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Slinkin, A.A., Kucherov, A.V. & Rubinshtein, A.M. Interaction of hydrogen and oxygen on the surface of Ni-SiO2 catalysts. Russ Chem Bull 24, 10–16 (1975). https://doi.org/10.1007/BF00926282

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  • DOI: https://doi.org/10.1007/BF00926282

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