Catalysis Letters

, Volume 23, Issue 1–2, pp 119–126 | Cite as

31P and119Sn high resolution solid state CP/MAS NMR study of Al2O3-SnO2 systems

  • Tai-Cheng Sheng
  • P. Kirszensztejn
  • T. N. Bell
  • I. D. Gay
Article
Received:
Accepted:

Abstract

A series of Al2O3-SnO2 catalysts with the mole ratio of Al2O3 to SnO2 equal to 1:1, 1 ∶ 0.5, 1 ∶ 0.1, 1 ∶ 0.05 and 1 ∶ 0.01 were characterized by31P NMR of adsorbed trimethyl phosphine (TMP) and119Sn MAS NMR spectroscopy. It was found from31P NMR that no Brønsted acid sites exist in these samples. Pure SnO2 shows two different types of Lewis acid sites; in the mixed oxide samples a Lewis peak characteristic of pure Al2O3 is always seen, together with either one or two other Lewis peaks, depending on the Sn concentration.119Sn CP/MAS NMR spectra of the highest Sn-content sample show one narrow line at −603 ppm superimposed on a very broad line, indicating a strong interaction between Al and Sn oxides.

Keywords

Al2O3-SnO2 catalysts acid sites Lewis acid trimethylphosphine 13P NMR 119Sn NMR 
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References

  1. [1]
    J.R. Baker, R.L. McCornik and H.W. Haynes Jr., Ind. Eng. Chem. Res. 26 (1987) 1895.Google Scholar
  2. [2]
    M. Absir-Halabi, A. Stanislaus and D.L. Trim, Appl. Catal. 72 (1991) 193.Google Scholar
  3. [3]
    R.L. McCornic, J.R. Baker and H.W. Haynes Jr., Energy & Fuels 2 (1988) 740.Google Scholar
  4. [4]
    B.C. Gates, J.R. Katzer and G.C.A. Schuit,Chemistry of Catalytic Processes (McGraw-Hill, New York, 1979) pp. 259–260.Google Scholar
  5. [5]
    M.B. Fleisher, L.O. Golender and M.V. Shimanskaya, J. Chem. Soc. Faraday Trans. 87 (1991) 745.Google Scholar
  6. [6]
    S.M. Riseman, F.E. Massoth, G.M. Dhar and E.M. Eyring, J. Phys. Chem. 86 (1982) 1760.Google Scholar
  7. [7]
    S.H.C. Liang and I.D. Gay, J. Catal. 66 (1980) 249.Google Scholar
  8. [8]
    I.D. Gay and S.H.C. Liang, J. Catal. 44 (1976) 306.Google Scholar
  9. [9]
    I.D. Gay, J. Catal. 48 (1977) 430.Google Scholar
  10. [10]
    W.P. Rothwell, W.X. Shen and J.H. Lunsford, J. Am. Chem. Soc. 106 (1984) 2452.Google Scholar
  11. [11]
    J.H. Lunsford, W.P. Rothwell and W. Shen, J. Am. Chem. Soc. 107 (1985) 1540.Google Scholar
  12. [12]
    P.-J. Chu, A. de Mallmann and J.H. Lunsford, J. Phys. Chem. 95 (1991) 7362.Google Scholar
  13. [13]
    P. Kirszensztejn, Mater. Chem. Phys. 27 (1991) 117.Google Scholar
  14. [14]
    P. Kirszensztejn, W. Przystajko and T.N. Bell, Catal. Lett. 18 (1993) 391.Google Scholar
  15. [15]
    I.D. Gay, J. Magn. Reson. 58 (1984) 413.Google Scholar
  16. [16]
    L. Baltusis, J.S. Frye and G.E. Maciel, J. Am. Chem. Soc. 109 (1987) 40.Google Scholar
  17. [17]
    P.-J. Chu, J.H. Lunsford and D.J. Zalewski, J. Magn. Reson. 87 (1990) 68.Google Scholar
  18. [18]
    L. Baltusis, J.S. Frye and G.E. Maciel, J. Am. Chem. Soc. 108 (1986) 7119.Google Scholar
  19. [19]
    P.G. Harrison,Chemistry of Tin (Chapman and Hall, New York, 1989) p. 11.Google Scholar
  20. [20]
    R. Srinivasan, R.J. DeAngelis and B.H. Davis, J. Catal. 106 (1987) 449.Google Scholar
  21. [21]
    F.J.C.M. Todenaer, F. Stoop and V. Ponec, J. Catal. 82 (1983) 1.Google Scholar
  22. [22]
    T.C. Sheng and I.D. Gay, J. Catal., in press.Google Scholar
  23. [23]
    N.J. Clayden, C.M. Dobson and A. Fern, J. Chem. Soc. Dalton Trans. (1989) 843.Google Scholar
  24. [24]
    C. Crossement, J. Darville, J.-M. Gilles, J.B. Nagy, C. Fernandez and J.-P. Amoureux, Magn. Reson. Chem. 30 (1992) 263.Google Scholar

Copyright information

© J.C. Baltzer AG, Science Publishers 1994

Authors and Affiliations

  • Tai-Cheng Sheng
    • 1
  • P. Kirszensztejn
    • 2
  • T. N. Bell
    • 3
  • I. D. Gay
    • 3
  1. 1.Department of ChemistryShandong UniversityShandongPR China
  2. 2.Faculty of ChemistryA. Mickiewicz UniversityPoznanPoland
  3. 3.Department of ChemistrySimon Fraser UniversityBurnabyCanada

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