Abstract
The Pt0.5Со0.5/SiO2 catalyst has been prepared by the decomposition of a [Pt(NH3)4][Co(C2O4)2(H2O)2]. 2H2O binary complex salt supported in the pores of SiO2 pellets. It has been shown by a complex of physical and chemical methods that Pt0.5Со0.5/SiO2 contains alloy nanoparticles with an average composition Pt0.5Co0.5. The catalytic properties of Pt0.5Со0.5/SiO2 are studied in the preferential oxidation of СО in the reaction mixtures with various compositions. It was found that Pt0.5Со0.5/SiO2 has a high selectivity and makes it possible to decrease the outlet concentration of CO to a level of <10 ppm, and the presence of СО2 and/or Н2О in the reaction mixture almost does not affect its catalytic properties. The structure of the catalyst is stable under the conditions of preferential CO oxidation.
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Original Russian Text © D.I. Potemkin, M.V. Konishcheva, A.V. Zadesenets, P.V. Snytnikov, E.Yu. Filatov, S.V. Korenev, V.A. Sobyanin, 2018, published in Kinetika i Kataliz, 2018, Vol. 59, No. 4, pp. 499–505.
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Potemkin, D.I., Konishcheva, M.V., Zadesenets, A.V. et al. Bimetallic Pt0.5Co0.5/SiO2 Catalyst: Preparation, Structure, and Properties in Preferential Oxidation of Carbon Monoxide. Kinet Catal 59, 514–520 (2018). https://doi.org/10.1134/S0023158418040110
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DOI: https://doi.org/10.1134/S0023158418040110