Skip to main content
SpringerLink
Log in

Study of molybdenum valence states in molybdenum oxide catalysts by electron spectroscopy (ESCA)

  • Published:
Reaction Kinetics and Catalysis Letters Aims and scope Submit manuscript

Abstract

The valence states of molybdenum in molybdenum oxide catalysts supported on γ-Al2O3 have been studied by the ESCA technique. Molybdenum oxide was found to interact with aluminium oxide in the course of catalyst preparation at 1000°C. In a freshly prepared catalyst molybdenum is present primarily in the hexavalent state. In the reduced catalyst Mo6+, Mo5+ and Mo4+ are present.

Abstract

Методом рентгеноэлектронной спектроскопии исследованы валентные состояния молибдена в нанесенных на γ-Al2O3 окисномолибденовых катализаторах. Установлено, что в процессе приготовления катализатора при 1000°C окись молибдена взаимодействует с окисью алюминия. В свежеприготовленном катализаторе молибден находится в основном в шестивалентном соотоянии. В восстановленном катализаторе присутствуюот Mo+6, Mo+5 и Mo+4. При окислении уменьшается концентрация Mo+5.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. G. N. Asmolov, O. V. Krylov: Kinetika i Kataliz,13, 188 (1972).

    Google Scholar 

  2. K. N. Spiridonov, G. B. Pariiskii, O. V. Krylov: Izv. Akad. Nauk SSSR, Ser. Khim., 1433, 2161 (1971); J. Catal.,25, 301 (1971).

    Google Scholar 

  3. K. Ziegbahn, C. Nordling, A. Fahlman, R. Nordberg, K. Hamrin, J. Hedman,G. Johansson, T. Bergmark, S. E. Karlsson, I. Lindgren, B. Lindberg: ESCA, Atomic, Molecular and Solid State Structure Studied by Means of Electron Spectroscopy, Uppsala 1967. Nova Acra Regiae Societatis Scientiarum Upsaliensis, ser. IV, vol. 20.

  4. M. Klasson, J. Hodman, A. Berndsson, K. Nilsson, C. Nordling, P. Helnik, UUIP-575, February 1972. Inst. of Physics, University of Uppsala.

  5. A. W. Miller, W. Atkinson, M. Barber, P. Suift: J. Catal.22, 140 (1971).

    Google Scholar 

  6. G. Johansson, J. Hedman, A. Berndsson, M. Klasson, R. Nilsson. UUIP-769, March 1972. Inst. of Physics, University of Uppsala.

Download references

Author information

Authors and Affiliations

  1. Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow

    E. L. Aptekar', M. G. Chudinov, A. M. Alekseev & O. V. Krylov

Authors
  1. E. L. Aptekar'
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. G. Chudinov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. M. Alekseev
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. O. V. Krylov
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Aptekar', E.L., Chudinov, M.G., Alekseev, A.M. et al. Study of molybdenum valence states in molybdenum oxide catalysts by electron spectroscopy (ESCA). React Kinet Catal Lett 1, 493–498 (1974). https://doi.org/10.1007/BF02074485

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02074485

Keywords

Search

Navigation