The dynamics of xenon motion between the α-cages of zeolite NaA have been studied using 129Xe nuclear magnetic resonance (NMR) inversion-recovery experiments. The apparent spin-lattice relaxation times suggest that the rate of intercage hopping decreases with loading. An upper limit for the intracrystalline diffusion of xenon in NaA is also calculated and is consistent with estimates made from other techniques.
Bibliographical noteFunding Information:
We would like to thank Paul R. Van Tassel for his help with the 129Xe NMR experiments. S.N. was supported by an NSF PYI grant and by a grant from the Dow Chemical Company.
- Intercage hopping
- Xe nuclear magnetic resonance
- Zeolite NaA