Structure of iron and manganese ions substituted in the framework of nanoporous AlPO-5 material

  • Gopinahtan Sankar
  • N. Raveendran Shiju
  • Ian D. Watts
  • Serge Nikitenko
  • Wim Bras
Article

Abstract

The structure of iron and managanese ions substituted in the framework of nanoporous AlPO-5 is determined by ex situ and in situ X-ray absorption spectroscopy. Fe K-edge XANES and EXAFS studies clearly indicate that iron ions are present as Fe(III) in octahedral coordination in the assynthesised material and tetrahedral coordination in the calcined material in both pure FeAlPO-5 and FeMnalPO-5. XANES and EXAFS results also indicate that reaction with hydrogen peroxide causes the removal of Fe(III) ions from the framework. Mn K-edge XANES and EXAFS of FeMnAlPO-5 samples indicate that Mn(II) ions are present in the framework, tetrahedrally coordinated, in the as-synthesised material but upon calcination it is found that the Mn(II) ions are removed from the framework, suggesting a different synthesis strategy is necessary to stabilise the Mn(II) ions in the framework simultaneously with Fe(III) ions.

Keywords

AIPO-5 ion substitution spectroscopy coordination 

References

  1. 1.
    M. E. Davis, Acc. Chem. Res. 26, 111 (1993).CrossRefGoogle Scholar
  2. 2.
    J. M. Thomas, Angew. Chem. Int. Edn Engl. 33, 913 (1994).CrossRefGoogle Scholar
  3. 3.
    A. Corma, Chem. Rev. 97, 2373 (1997).CrossRefGoogle Scholar
  4. 4.
    J. M. Thomas, Angew. Chem. Int. Edn 38, 3589 (1999).CrossRefGoogle Scholar
  5. 5.
    M. Hartmann and L. Kevan, Res. Chem. Intermed. 28, 625 (2002).CrossRefGoogle Scholar
  6. 6.
    A. Corma, J. Catal. 216, 298 (2003).CrossRefGoogle Scholar
  7. 7.
    S. T. Wilson, B. M. Lok, C. A. Messina, T. R. Cannan and E. M. Flaningen, US Patent 4,310,440 (1982).Google Scholar
  8. 8.
    S. T. Wilson, B. M. Lok, C. A. Messina, T. R. Cannan and E. M. Flanigen, J. Am. Chem. Soc. 104, 1146 (1982).CrossRefGoogle Scholar
  9. 9.
    E. M. Flanigen, B. M. Lok, R. L. Patton and S. T. Wilson, Pure Appl. Chem. 58, 1351 (1986).CrossRefGoogle Scholar
  10. 10.
    S. T. Wilson and E. M. Flanigen, US Patent 4,567,029 (1986).Google Scholar
  11. 11.
    S. T. Wilson and E. M. Flanigen, ACS Symp. Ser. 398, 329 (1989).CrossRefGoogle Scholar
  12. 12.
    J. M. Thomas, R. Raja, G. Sankar and R. G. Bell, Acc. Chem. Res. 34, 191 (2001).CrossRefGoogle Scholar
  13. 13.
    P. A. Barrett, R. H. Jones, J. M. Thomas, G. Sankar, I. J. Shannon and C. R. A. Catlow, Chem. Commun, 2001 (1996).Google Scholar
  14. 14.
    I. L. Franklin, A. M. Beale and G. Sankar, Catal. Today 81, 623 (2003).CrossRefGoogle Scholar
  15. 15.
    G. Sankar, R. Raja and J. M. Thomas, Catal. Lett. 55, 15 (1998).CrossRefGoogle Scholar
  16. 16.
    R. Raja, G. Sankar and J. M. Thomas, Chem. Commun., 829 (1999).Google Scholar
  17. 17.
    J. M. Thomas, R. Raja, G. Sankar and R. G. Bell, Nature 398, 227 (1999).CrossRefGoogle Scholar
  18. 18.
    N. R. Shiju, S. Fiddy, O. Sonntag, M. Stockenhuber and G. Sankar, Chem. Commun., 4955 (2006).Google Scholar
  19. 19.
    A. Simmen, L. B. McCusker, C. Baerlocher and W. M. Meier, Zeolites 11, 654 (1991).CrossRefGoogle Scholar
  20. 20.
    M. A. Estermann, L. B. McCusker and C. Baerlocher, J. Appl. Crystallogr. 25, 539 (1992).CrossRefGoogle Scholar
  21. 21.
    L. M. Bull, A. K. Cheetham, P. D. Hopkins and B. M. Powell, J. Chem. Soc. Chem. Commun., 1196 (1993).Google Scholar
  22. 22.
    W. H. Baur, W. Joswig, D. Kassner, J. Kornatowski and G. Finger, Acta Crystallogr. B: Struct. Sci. 50, 290 (1994).CrossRefGoogle Scholar
  23. 23.
    L. M. Bull, A. K. Cheetham, B. M. Powell, J. A. Ripmeester and C. I. Ratcliffe, J. Am. Chem. Soc. 117, 4328 (1995).CrossRefGoogle Scholar
  24. 24.
    L. Smith, A. K. Cheetham, R. E. Morris, L. Marchese, J. M. Thomas, P. A. Wright and J. Chen, Science 271, 799 (1996).CrossRefGoogle Scholar
  25. 25.
    A. Meden, C. Baerlocher and L. B. McCusker, Microporous Mater. 11, 247 (1997).CrossRefGoogle Scholar
  26. 26.
    V. Ramaswamy, L. B. McCusker and C. Baerlocher, Microporous Mesoporous Mater. 31, 1 (1999).CrossRefGoogle Scholar
  27. 27.
    A. Martucci, A. Alberti, G. Cruciani, A. Frache, S. Coluccia and L. Marchese, J. Phys. Chem. B 107, 9655 (2003).CrossRefGoogle Scholar
  28. 28.
    G. Sankar, J. K. Wyles, R. H. Jones, J. M. Thomas, C. R. A. Catlow, D. W. Lewis, W. Clegg, S. J. Coles and S. J. Teat, Chem. Commun., 117 (1998).Google Scholar
  29. 29.
    G. Sankar and J. M. Thomas, Top. Catal. 8, 1 (1999).CrossRefGoogle Scholar
  30. 30.
    J. M. Thomas and G. Sankar, Acc. Chem. Res. 34, 571 (2001).CrossRefGoogle Scholar
  31. 31.
    J. M. Thomas and G. Sankar, J. Synchrotron Radiat. 8, 55 (2001).CrossRefGoogle Scholar
  32. 32.
    C. Zenonos, G. Sankar, F. Cora, D. W. Lewis, Q. A. Pankhurst, C. R. A. Catlow, J. M. Thomas, Phys. Chem. Chem. Phys. 4, 5421 (2002).CrossRefGoogle Scholar
  33. 33.
    S. Bordiga, F. Boscherini, S. Coluccia, F. Genoni, C. Lamberti, G. Leofanti, L. Marchese, G. Petrini, G. Vlaic and A. Zecchina, Catal. Lett. 26, 195 (1994).CrossRefGoogle Scholar
  34. 34.
    S. Bordiga, S. Coluccia, C. Lamberti, L. Marchese, A. Zecchina, F. Boscherini, F. Buffa, F. Genoni, G. Leofanti, G. Petrini and G. Vlaic, J. Phys. Chem. 98, 4125 (1994).CrossRefGoogle Scholar
  35. 35.
    F. Farges, G. E. Brown and J. J. Rehr, Geochim. Cosmochim. Acta 60, 3023 (1996).CrossRefGoogle Scholar

Copyright information

© Springer 2008

Authors and Affiliations

  • Gopinahtan Sankar
    • 1
  • N. Raveendran Shiju
    • 1
  • Ian D. Watts
    • 1
  • Serge Nikitenko
    • 2
  • Wim Bras
    • 2
  1. 1.Davy Faraday Research LaboratoryThe Royal Institution of GBLondonUK
  2. 2.DUBBLE @ ESRFGrenobleFrance

Personalised recommendations