Frequency-response measurements of diffusion of xenon in silicalite-1
- 1 January 1990
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions
- Vol. 86 (21) , 3687-3692
- https://doi.org/10.1039/ft9908603687
Abstract
The diffusion of xenon in silicalite-1 has been measured using two frequency-response (f.r.) methods: (i) full frequency range and (ii) single step. Diffusion coefficients determined at 195 and 273 K and at equilibrium sorption pressures of 1–10 Torr have been compared with those determined by pulsed field gradient NMR and molecular-dynamics simulation methods. The activation energy for diffusion of xenon in silicalite-1 determined by both f.r. methods agrees well with that obtained by NMR but not with that calculated by molecular dynamics.Keywords
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