Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Article
  • Published:

Monitoring of structural changes accompanying ultrastabilization of faujasitic zeolite catalysts

Abstract

By recording high-resolution solid-state NMR spectra of zeolitic samples spun (at 3 kHz) at the magic angle (θ = 54° 44′ so that 3 cos2 θ−1 = 0) to the magnetic field, the chemical identity of the first and second coordination shells surrounding Si may be determined, and a distinction made between octahedrally and tetrahedrally bonded Al. The technique, therefore, enables the atomic course of dealumination, known to be responsible for the stabilization of catalytic zeolites, to be directly determined.

This is a preview of subscription content, access via your institution

Access options

Rent or buy this article

Prices vary by article type

from$1.95

to$39.95

Prices may be subject to local taxes which are calculated during checkout

Similar content being viewed by others

References

  1. Milton, R. M. U.S. Patent 2,882,244 (1959).

  2. Breck, D. W. U.S. Patent 3,130,007 (1964).

  3. McDaniel, C. V. & Maher, P. K. Molecular Sieves (ed. Barrer, R. M.) 186–195 (Society of Chemical Industry, London, 1968).

    Google Scholar 

  4. McDaniel, C. V. & Maher, P. K. U.S. Patent 3,449,070 (1969).

  5. Lippmaa, E., Mägi, M., Samoson, A., Engelhardt, G. & Grimmer, A.-R. J. Am. chem. Soc. 102, 4889–4893 (1980).

    Article  CAS  Google Scholar 

  6. Ramdas, S., Thomas, J. M., Klinowski, J., Fyfe, C. A. & Hartman, J. S. Nature 292, 228–230 (1981).

    Article  ADS  CAS  Google Scholar 

  7. Klinowski, J., Thomas, J. M., Fyfe, C. A. & Hartman, J. S. J. phys. Chem. 85, 2590–2594 (1981).

    Article  CAS  Google Scholar 

  8. Lippmaa, E., Mägi, M., Samoson, A., Tarmak, M. & Engelhardt, G. J. Am. chem. Soc. 103, 4992–4996 (1981).

    Article  CAS  Google Scholar 

  9. Klinowski, J. et al. JCS Chem. Commun. 570–571 (1981).

  10. Klinowski, J., Thomas, J. M., Fyfe, C. A., Gobbi, G. C. & Hartman, J. S. Inorg. Chem. (submitted).

  11. Klinowski, J., Ramdas, S., Thomas, J. M., Fyfe, C. A. & Hartman, J. S. JCS Faraday Trans. II (in the press).

  12. Engelhardt, G., Lohse, U., Lippmaa, E., Tarmak, M. & Mägi, M. Z. anorg. allg. chem. 482, 49–64 (1981).

    Article  CAS  Google Scholar 

  13. Müller, D., Gessner, W., Behrens, H.-J. & Scheler, G. Chem. phys. Lett. 79, 59–62 (1981).

    Article  ADS  Google Scholar 

  14. Fyfe, C. A., Gobbi, G. C., Hartman, J. S., Klinowski, J. & Thomas, J. M. J. phys. Chem. (in the press).

  15. Kerr, G. T. Molecular Sieves (eds Meier, W. M. & Uytterhoeven, J. B.) 219–229 (Advances in Chemistry Series No. 121, American Chemical Society, 1974).

    Google Scholar 

  16. Gallezot, P., Beaumont, R. & Barthomeuf, D. J. phys. Chem. 78, 1550–1553 (1974).

    Article  CAS  Google Scholar 

  17. Breck, D. W. & Skeels, G. W. in Proc. 5th int. Conf. on Zeolites Naples (ed. Rees, L. V. C.) 335–343 (Hayden, London, 1980).

    Google Scholar 

  18. Fyfe, C. A. et al. J. Magn. Res. (submitted).

  19. Andrew, E. R. Int. Rev. phys. Chem. 1, 195–224 (1981).

    Article  CAS  Google Scholar 

  20. Wells, A. F. Structural Inorganic Chemistry (Oxford University Press, 1962).

    Google Scholar 

  21. Lohse, U. et al. Z. anorg. allg. Chem. 460, 179–190 (1980).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Author notes

  1. To whom correspondence should be addresssed.

    Authors

    Rights and permissions

    Reprints and permissions

    About this article

    Cite this article

    Klinowski, J., Thomas, J., Fyfe, C. et al. Monitoring of structural changes accompanying ultrastabilization of faujasitic zeolite catalysts. Nature 296, 533–536 (1982). https://doi.org/10.1038/296533a0

    Download citation

    • Received:

    • Accepted:

    • Published:

    • Issue Date:

    • DOI: https://doi.org/10.1038/296533a0

    This article is cited by

    Comments

    By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

    Search

    Quick links

    Nature Briefing

    Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

    Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing