Concentration dependence of intracrystalline self-diffusion in zeolites
1985 ◽
Vol 2
(4)
◽
pp. 229-239
◽
Keyword(s):
The Self
◽
The nmr pulsed field gradient technique is applied to study molecular self-diffusion in zeolitic adsorbate—adsorbent systems. Depending on the zeolite type and on the nature of the adsorbate—adsorbent interaction, the concentration dependence of the self-diffusion coefficients reveals considerable differences. Furthermore, intracrystalline molecular transport may be significantly influenced by the co-adsorption of a second molecular species. Supported by additional nuclear magnetic relaxation and sorption rate measurements microdynamic models for the observed diffusion behaviour are established.
1994 ◽
Vol 49
(3-4)
◽
pp. 258-264
◽
2003 ◽
Vol 89
(6)
◽
pp. 1682-1684
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Keyword(s):