Abstract
The catalysts of silver supported on mesoporous silica modified with Co3O4, CeO2, and ZrO2 were prepared by an impregnation method; characterized by X-ray diffraction analysis, temperature-programmed reduction, and low-temperature nitrogen adsorption; and studied in a model reaction of CO oxidation. It was found that the Ag/SiO2 system exhibited high activity in the reaction of CO oxidation, and the addition of transition metal oxides led to reduction of the temperature of 50% CO conversion by 40°C. The modification of Ag/SiO2 with cerium dioxide was found most effective because of the interaction of silver particles and CeO2 on the surface of silica gel.
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Original Russian Text © G.V. Mamontov, V.V. Dutov, V.I. Sobolev, O.V. Vodyankina, 2013, published in Kinetika i Kataliz, 2013, Vol. 54, No. 4, pp. 513–518.
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Mamontov, G.V., Dutov, V.V., Sobolev, V.I. et al. Effect of transition metal oxide additives on the activity of an Ag/SiO2 catalyst in carbon monoxide oxidation. Kinet Catal 54, 487–491 (2013). https://doi.org/10.1134/S0023158413040137
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DOI: https://doi.org/10.1134/S0023158413040137