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Peculiarities of the Active Component Formation in Alumina-Supported Copper Molybdate Catalysts for Soot Combustion

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Abstract

Peculiarities of the formation of the phase composition of alumina-supported copper molybdate catalysts and their reactivity in the soot oxidation model reaction have been studied. Catalysts have been prepared by incipient wetness impregnation with aqueous solutions of precursors of the supported components, while varying the order of introduction of the components and their molar ratio and content. The catalysts have been studied by XRD, UV-vis DR spectroscopy, and H2-TPR. It has been shown that the phase composition of the supported samples and, as a consequence, their catalytic activity are significantly affected by the order of introduction of the supported components due to their interaction with the support.

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Funding

This work was performed under a state task of the Ministry of Education and Science of the Russian Federation (project no. 0721-2020-0037).

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Authors and Affiliations

  1. National Research Tomsk State University, 634050, Tomsk, Russia

    E. V. Romanova & T. S. Kharlamova

  2. ZAO BIOCAD, settl. Strelna, 198515, St. Petersburg, Russia

    A. V. Nam

Authors
  1. E. V. Romanova
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  2. A. V. Nam
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  3. T. S. Kharlamova
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Correspondence to E. V. Romanova or T. S. Kharlamova.

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Translated by M. Timoshinina

Abbreviations and notation: XRD, X-ray diffraction analysis; DRES, diffuse reflectance electron spectroscopy; H2-TPR, temperature-programmed reduction with hydrogen; EPM, extraction–pyrolytic method; PSG, polymer–salt gel; STA, simultaneous thermal analysis; SPS, solid-phase synthesis; BF, basalt fiber; BET, Brunauer–Emmett–Teller method.

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Romanova, E.V., Nam, A.V. & Kharlamova, T.S. Peculiarities of the Active Component Formation in Alumina-Supported Copper Molybdate Catalysts for Soot Combustion. Kinet Catal 62, 675–687 (2021). https://doi.org/10.1134/S0023158421050074

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