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Ion-induced CO adsorption on polycrystalline nickel. Secondary ion mass spectrometry study

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Abstract

In the process of ion-induced CO adsorption (Ar+, 4 keV, 4 μA/cm2) on polycrystalline Ni at room temperature and P=(1−40)×10−6 Pa the emission of Ni+, NiCO+, CO+, NiO+ and C+ ions is observed. The emission of the last three ions is due to the ion-stimulated dissociation of weakly bound CO state and NiO formation. The weakly bound state is formed owing to surface defects produced by ion bombardment. The cross sections of the ion-induced desorption are 1.8 and 0.8×10−14 cm2, respectively, for weakly bound and strongly bound states.

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Authors and Affiliations

  1. Federal Scientific Center, Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia

    V. P. Ivanov & S. N. Trukhan

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  1. V. P. Ivanov
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  2. S. N. Trukhan
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Ivanov, V.P., Trukhan, S.N. Ion-induced CO adsorption on polycrystalline nickel. Secondary ion mass spectrometry study. React Kinet Catal Lett 55, 111–120 (1995). https://doi.org/10.1007/BF02075841

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  • DOI: https://doi.org/10.1007/BF02075841

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