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Influence of CeO2 addition on the physicochemical and catalytic properties of Pd/TiO2 catalysts in CO oxidation

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Abstract

The influence of CeO2 addition on the formation of the microstructure, electronic state, and catalytic properties of Pd/TiO2 supported catalysts in CO oxidation were investigated. It was shown that, when Pd is supported on titanium dioxide modified with cerium dioxide, annealing at 500°C results in the formation of Pd/(CeO2-TiO2) catalysts with a nanocrystalline structure composed of incoherently intergrown fine anatase crystals and interblock boundaries in which palladium and cerium are stabilized. The higher catalytic activity of Pd/(CeO2-TiO2) catalysts compared to Pd/TiO2 catalysts is explained by the smaller size of Pd particles and the higher proportion of palladium in the Pdδ+ state.

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Authors and Affiliations

  1. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    A. A. Shutilov, G. A. Zenkovets, I. Yu. Pakharukov & I. P. Prosvirin

  2. Novosibirsk State University, Novosibirsk, 630090, Russia

    I. Yu. Pakharukov

Authors
  1. A. A. Shutilov
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  2. G. A. Zenkovets
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  3. I. Yu. Pakharukov
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  4. I. P. Prosvirin
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Correspondence to A. A. Shutilov.

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Original Russian Text © A.A. Shutilov, G.A. Zenkovets, I.Yu. Pakharukov, I.P. Prosvirin, 2014, published in Kinetika i Kataliz, 2014, Vol. 55, No. 1, pp. 115–120.

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Shutilov, A.A., Zenkovets, G.A., Pakharukov, I.Y. et al. Influence of CeO2 addition on the physicochemical and catalytic properties of Pd/TiO2 catalysts in CO oxidation. Kinet Catal 55, 111–116 (2014). https://doi.org/10.1134/S0023158414010121

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  • DOI: https://doi.org/10.1134/S0023158414010121

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