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NMR Studies of Hydrofluorocarbon-Cation Interactions and Cation Migrations on Adsorption of Hydrofluorocarbon-134 on Zeolites NaY and CsY

Published online by Cambridge University Press:  10 February 2011

Clare P. Grey
Affiliation:
Chemistry Department, SUNY Stony Brook, Stony Brook, NY 11794-3400, USA
Faiza I. Poshni
Affiliation:
Chemistry Department, SUNY Stony Brook, Stony Brook, NY 11794-3400, USA
Yong Ba
Affiliation:
Chemistry Department, SUNY Stony Brook, Stony Brook, NY 11794-3400, USA
David R. Corbin
Affiliation:
DuPont Central Research and Development, Wilmington, DE 19880-0262, USA
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Abstract

23Na and 23Na/19F double resonance MAS NMR methods have been used to study the binding of hydrofluorocarbon-134 (CF2HCF2H) in zeolites NaY and CsY. The interaction of HFC- 134 with the sodium cations is so strong that the sodium cations in the sodalite cages (site I') migrate into the supercages to bind to the hydrofluorocarbon molecules.

Type
Research Article
Copyright
Copyright © Materials Research Society 1996

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References

1. Molina, M. J., Rowland, F. S., Nature, 249, 810 (1974). R.T. Watson. M. J. Prather, M. J. Kurylo, NASA Ref. Publ. No. 1208 (1988).Google Scholar
2. Manzer, L. E., Science, 249, 31 (1990). L. E. Manzer, V. N. M. Rao, Advances in Catalysis, 39, 329 (1993). G. Webb G.. J. Winfield, Chemistry in Britain, 28, 996 (1992).Google Scholar
3. Corbin, D.R., Mahler, B.A., World Patent, W.O. 94/02440 (3 February 1994).Google Scholar
4. Sanderson, R. T., Chemical bonds and bond energy, 2nd ed. (Academic Press, New York,1976).Google Scholar
5. Grey, C. P. and Corbin, D. R., J. Phys. Chem., 99, 16821 (1995); Stud. Surf. Sci. Catal., 98, 89 (1995).Google Scholar
6. Engelhardt, G., Hunger, M., Koller, H., Weitkamp, J., Stud. Surf. Sci. Catal., 84, 421 (1994). M. Hunger, G. Engelhardt, H. Koller and J. Weitkamp, Solid State NMR, 2, 111(1993).Google Scholar
7. Gullion, T. and Schaefer, J., J. Magn. Reson., 81, 196 (1989).Google Scholar
8. Gullion, T. and Schaefer, J., J. Magn. Reson., 92, 439 (1991). C. P. Grey and B. S. A. Kumar, J. Am. Chem. Soc., 117, 9071 (1995).Google Scholar
9. Breck, D. W., Zeolite Molecular Sieves, (John Wiley & Sons, Inc.: New York, 1974). W. J. Mortier, Compilation of Extra-Framework Sites in Zeolites, (Butterworth-Heineman, London 1982).Google Scholar
10. Olson, D. H., Zeolites, 15, 439 (1995)Google Scholar
11. Engelhardt, G., Hunger, M., Koller, H., Weitkamp, J., presented at the 11 th International Zeolite Association Conference, Garmisch, 1994 (unpublished). C. P. Grey, unpublished results.Google Scholar
12. Grey, C. P., Poshni, F. I., Gualtieri, A. F., Norby, P., Hanson, J. C., Corbin, D. R., manuscript in preparation.Google Scholar
13. Kaszkur, Z. A., Jones, R. H., Couves, J. H., Waller, D., Catlow, R. A., Thomas, J. M., J. Phys. Chem. Solids 52, 1219 (1991). Z. A. Kaszkur, R. H. Jones, D. Waller, R. A. Catlow and J. M. Thomas, J. Phys. Chem., 97, 426 (1993).Google Scholar