Abstract
The oxidation of a polycrystalline platinum foil by nitrogen dioxide at an NO2 pressures of 10–6–10–4 mbar and a temperature of 525 K has been investigated by X-ray photoelectron spectroscopy (XPS). Under these conditions, the platinum oxides PtO and Pt3O4 form on the foil surface. A comparison between the data obtained in this study and the data on the oxidation of platinum nanoparticles suggests a hypothesis as to the causes of the size effect in the oxidation of NO over platinum catalysts.
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Original Russian Text © A.V. Kalinkin, M.Yu. Smirnov, V.I. Bukhtiyarov, 2016, published in Kinetika i Kataliz, 2016, Vol. 57, No. 6, pp. 833–838.
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Kalinkin, A.V., Smirnov, M.Y. & Bukhtiyarov, V.I. Oxidation of a platinum foil with nitrogen dioxide. Kinet Catal 57, 826–830 (2016). https://doi.org/10.1134/S0023158416060069
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DOI: https://doi.org/10.1134/S0023158416060069