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Interaction between Water Molecules and an Al2 – xO3 – y Single-Layer Film

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Abstract

Ultraviolet photoelectron and thermal-desorption spectroscopy data showed that water molecules dissociate under ultrahigh vacuum on the surface of a single-layer alumina film formed on Mo (110) and maintained at a low temperature, and they are desorbed during subsequent thermally stimulated recombination as hydrogen, water, and oxygen. Several recombination channels of adsorbed particles are due to the complete decomposition of water molecules and the metastable single-layer oxide film incompletely formed from Al(3 – x)+–O(2 – y)– interionic bonds and its specific interaction with H, O, and OH particles.

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Funding

This work was supported by the Ministry of Science and Higher Education of the Russian Federation (SOGU project no. 3.9281.2018), and Russian Science Foundation, project no. 19-47-020110.

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Authors and Affiliations

  1. Khetagurov North Ossetian State University, 362025, Vladikavkaz, Russia

    T. T. Magkoev & G. S. Grigorkina

  2. Geophysical Institute, Vladikavkaz Scientific Center, Russian Academy of Sciences, 362002, Vladikavkaz, Russia

    T. T. Magkoev, V. B. Zaalishvili, O. G. Burdzieva, E. N. Kozyrev & G. E. Tuaev

  3. The University of Tokyo, 153-8505, Tokyo, Japan

    K. Fukutani

Authors
  1. T. T. Magkoev
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  2. G. S. Grigorkina
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  3. V. B. Zaalishvili
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  4. O. G. Burdzieva
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  5. E. N. Kozyrev
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  6. G. E. Tuaev
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  7. K. Fukutani
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Corresponding author

Correspondence to T. T. Magkoev.

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Translated by A. Tulyabaev

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Magkoev, T.T., Grigorkina, G.S., Zaalishvili, V.B. et al. Interaction between Water Molecules and an Al2 – xO3 – y Single-Layer Film. J. Surf. Investig. 14, 617–620 (2020). https://doi.org/10.1134/S1027451020030337

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  • DOI: https://doi.org/10.1134/S1027451020030337

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