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Reaction Kinetics and Catalysis Letters

, Volume 67, Issue 2, pp 273–279 | Cite as

ESR study of reduced vanadium-titanium oxide catalysts

  • A. A. Altynnikov
  • G. A. Zenkovets
  • V. F. Anufrienko
Article

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.

Keywords

Vanadium-titanium oxide catalyst reduction with hydrogen ESR 

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Copyright information

© Akadémiai Kiadó 1999

Authors and Affiliations

  • A. A. Altynnikov
    • 1
  • G. A. Zenkovets
    • 1
  • V. F. Anufrienko
    • 1
  1. 1.Boreskov Institute of CatalysisNovosibirskRussia

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