Catalysis Letters

, Volume 13, Issue 3, pp 203–211 | Cite as

Characterization of silica-supported vanadia-promoted rhodium catalysts by51V-NMR spectroscopy

  • O. B. Lapina
  • V. M. Mastikhin
  • A. V. Nosov
  • T. Beutel
  • H. Knözinger
Article

Abstract

Vanadium oxide promoted Rh/SiO2 catalyst precursors which were calcined at 573, 773, 973 and 1173 K, were characterized by51V-NMR. V2O5 is present in all materials and RhVO4 is formed at 1173 K. An additional interaction species with vanadium in distorted tetrahedral oxygen environment is found after calcination at 973 K. These phases might have relevance for catalytic promotion of reduced Rh° metal catalysts by VOx. In addition, distorted tetrahedral VO4 species which are capable of interacting with water molecules (V2 species) and distorted octahedral species having water molecules in their coordination sphere (V5 species) have been detected.

Keywords

Rhodium vanadia promoter effect 51V-solid state NMR 

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References

  1. [1]
    M. Ichikawa, K. Shikakura and M. Hawai, in:Proc. Symp. on Heterogenous Catalysis Related to Energy Problems, Dalian, P.R. China, 1982, paper A 08 J.Google Scholar
  2. [2]
    G. van der Lee, L. Schuller, H. Post, T.L.F. Favre and V. Ponec, J. Catal. 98 (1986) 522.Google Scholar
  3. [3]
    G. van der Lee, A.G.T.M. Bastein, J. van den Boogert, B. Schuller, H.-Y. Luo and V. Ponec, J. Chem. Soc., Faraday Trans. I, 83 (1987) 1893.Google Scholar
  4. [4]
    H.-Y. Luo, A.G.T.M. Bastein, A.A.J.P. Mulder and V. Ponec, Appl. Catal. 38 (1988) 241.Google Scholar
  5. [5]
    B.J. Kip, P.A.T. Smeets, J. van Grondelle and V. Prins, Appl. Catal. 33 (1987) 181.Google Scholar
  6. [6]
    B.J. Kip, E.G.F. Hermanns and R. Prins, Appl. Catal. 35 (1987) 141.Google Scholar
  7. [7]
    F.G.A. van den Berg, J.H.E. Glezer and W.M.H. Sachtler, J. Catal. 93 (1985) 340.Google Scholar
  8. [8]
    W.M.H. Sachtler, in:Proc. 8th Intern. Congr. Catal., Berlin, 1984 (Dechema, Frankfurt, and Verlag Chemie, Weinheim, 1984) Vol. I, p. 151.Google Scholar
  9. [9]
    T. Mori, A. Miyamoto, N. Takahashi, M. Fukagaya, T. Hattori and Y. Murakami, J. Phys. Chem. 90 (1986) 5197.Google Scholar
  10. [10]
    W.M.H. Sachtler and M. Ichikawa, J. Phys. Chem. 90 (1986) 4752.Google Scholar
  11. [11]
    H. Knözinger, in eds.,Homogeneous and Heterogeneous Catalysis eds. Yu. Yermakov and V. Likholobov (VNU Press, Utrecht, 1986), p. 789.Google Scholar
  12. [12]
    R.-H. Wang and Y.-S. Xu, J. Mol. Catal. 54 (1988) 478.Google Scholar
  13. [13]
    Yu. I. Yermakov, Yu. A. Ryndin, O.S. Alekseev, V.I. Zaikovskii and A.V. Pashis, Appl. Catal. 26 (1986) 313.Google Scholar
  14. [14]
    A. Trunschke, H. Ewald, D. Gutschick, H. Miessner, M. Skupin, B. Walter and H.-C. Boettcher, J. Mol. Catal. 56 (1989) 95.Google Scholar
  15. [15]
    Z. Hu, T. Wakasugi, A. Maeda, K. Kunimori and T. Uchijima, J. Catal. 127 (1991) 276.Google Scholar
  16. [16]
    B.J. Hip, P.A.T. Smeets, J.H.M.C. van Wolput, H.W. Zandbergen, J. van Grondelle and R. Prins, Appl. Catal. 33 (1987) 157.Google Scholar
  17. [17]
    I.S. Shaplygin, I.I. Prosychev and V.B. Lazarev, Russ. J. Inorg. Chem. 23 (1978) 773.Google Scholar
  18. [18]
    L.W. Vernoni and W.O. Milligan, Texas J. Sci. 3 (1951) 82.Google Scholar
  19. [19]
    V.M. Mastikhin, O.B. Lapina, V.N. Krasilnikov and A.A. Ivakin, React. Kinet. Catal. Lett. 24 (1984) 119.Google Scholar
  20. [20]
    V.M. Mastikhin, O.B. Lapina and L.G. Simonova, React. Kinet. Catal. Lett. 24 (1984) 127.Google Scholar
  21. [21]
    K.I. Zamaraev and V.M. Mastikhin, Colloids and Surfaces 12 (1984) 401.Google Scholar
  22. [22]
    T.P. Gorshkova, R.I. Maksimovskaya, D.V. Tarasova, N.N. Chumachenko and T.A. Nikoro, React. Kinet. Catal. Lett. 24 (1984) 107.Google Scholar
  23. [23]
    L.R. LeCostumer, B. Taouk, M. LeMeur, E. Payen, M. Guelton and J. Grimblot, J. Phys. Chem. 92 (1988) 1230.Google Scholar
  24. [24]
    B. Taouk, H. Guelton, J. Grimblot and J.P. Bonnelle, J. Phys. Chem. 92 (1988) 6700.Google Scholar
  25. [25]
    H. Eckert and I.E. Wachs, J. Phys. Chem. 93 (1989) 6796.Google Scholar
  26. [26]
    O.B. Lapina, V.M. Mastikhin, L.G. Simonova and Yu. O. Bulgakova, J. Mol. Catal. 69 (1991) 61.Google Scholar
  27. [27]
    A.A. Fotiev, B.V. Slobodin and M. Ya. Hodos,'Vanadates: Composition, Synthesis, Structure, Properties (Nauka, Moscow, 1988) p. 268.Google Scholar
  28. [28]
    T. Beutel, A. Siborov, V.I. Zaikovskii and H. Knözinger, in preparation.Google Scholar

Copyright information

© J.C. Baltzer AG, Scientific Publishing Company 1992

Authors and Affiliations

  • O. B. Lapina
    • 1
  • V. M. Mastikhin
    • 1
  • A. V. Nosov
    • 1
  • T. Beutel
    • 2
  • H. Knözinger
    • 2
  1. 1.Siberian Branch of the Academy of Sciences of the USSRInstitute of CatalysisNovosibirskUSSR
  2. 2.Institut für Physikalische ChemieUniversität MünchenMünchen 2Germany

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