Intracrystalline monitoring of molecular uptake into the one-dimensional channels of the AFI-type crystals using interference microscopy

Intracrystalline concentration profiles of methanol during its adsorption into the one-dimensional channels of CrAPO-5 crystals are reported. The profiles were recorded by the interference microscopy technique recently introduced in our laboratory. The exceptionally high spatial resolution, which ca...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of chemical physics 2003-04, Vol.118 (14), p.6129-6132
Main Authors: Lehmann, Enrico, Vasenkov, Sergey, Kärger, Jörg, Zadrozna, Gabriela, Kornatowski, Jan
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Intracrystalline concentration profiles of methanol during its adsorption into the one-dimensional channels of CrAPO-5 crystals are reported. The profiles were recorded by the interference microscopy technique recently introduced in our laboratory. The exceptionally high spatial resolution, which can be achieved by this technique allowed us to obtain detailed information on the interplay of intracrystalline diffusion, the permeability of the crystal surface and the role of the intergrowth effects on molecule uptake. Comparison of the measured concentration profiles with those simulated by the dynamic Monte Carlo method provides quantitative information on the intracrystalline diffusivity of methanol and the permeability of the transport barriers on the crystal surface.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.1565324