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ESR study of reduced vanadium-titanium oxide catalysts

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Abstract

Reduction of vanadium-titanium oxide catalysts with hydrogen in the temperature range of 150–450°C results in the increase of the content of V4+ ions in substitution positions of TiO2 with the anatase structure. The temperature increase up to 250°C results in the growth of the spectral intensity of V4+ associates in substitution positions of anatase. At higher treatment temperatures their intensity decreases due to the formation of VO2 fragments in anatase. At 400°C and higher temperatures a solid solution of V4+ ions in rutile is formed.

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Authors and Affiliations

  1. Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia

    A. A. Altynnikov, G. A. Zenkovets & V. F. Anufrienko

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  1. A. A. Altynnikov
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  2. G. A. Zenkovets
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  3. V. F. Anufrienko
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Altynnikov, A.A., Zenkovets, G.A. & Anufrienko, V.F. ESR study of reduced vanadium-titanium oxide catalysts. React Kinet Catal Lett 67, 273–279 (1999). https://doi.org/10.1007/BF02475771

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  • DOI: https://doi.org/10.1007/BF02475771

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