Sorbate-induced structural changes in ZSM-5 (silicalite)

Authors:
  • CFColin A. Fyfe
    Colin A. Fyfe
  • GKGordon. J. Kennedy
    Gordon. J. Kennedy
  • CSConnie T. De Schutter
    Connie T. De Schutter
  • GKGeorge T. Kokotailo
    George T. Kokotailo
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Abstract
The high-field (9.4 T)29Si m.a.s. n.m.r. spectrum (m.a.s. = magic angle spinning) of highly siliceous ZSM-5 (silicalite) shows that changes in the zeolite structure occur when sorbate molecules are present; these changes occur at low loading levels and are characteristic of the nature of the sorbed molecules, and X-ray diffraction confirms that the effect is a perturbation of the zeolite structure itself.