Title: Characterization of a molecular sieve coating using ellipsometric porosimetry
Authors: Eslava Fernandez, Salvador ×
Baklanov, Mikhail R
Kirschhock, Christine
Iacopi, Francesca
Aldea, Steliana
Maex, Karen
Martens, Johan #
Issue Date: Dec-2007
Publisher: American Chemical Society
Series Title: Langmuir vol:23 issue:26 pages:12811-12816
Abstract: Ellipsometric porosimetry was used to determine the adsorption isotherms of toluene, methanol, and water on b-oriented Silicalite-1 coatings with a thickness of less than ca. 250 nm and to obtain adsorption kinetics. The adsorption isotherms are of sufficient quality to reveal several aspects of the pore structure such as the adsorbate capacity and the adsorbate/framework affinity. The use of a combination of different molecular probes in ellipsometric porosimetry to elucidate the molecular accessibility of Silicalite-1 pores is demonstrated. It is shown that ellipsometric porosimetry is an appropriate technique for probing the influence of aging of the Silicalite-1 coating and of planarization polishing on the porosity, pore accessibility, and adsorbate/framework affinity.
ISSN: 0743-7463
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
Associated Section of ESAT - INSYS, Integrated Systems
Laboratory of Tissue Plasticity (-)
× corresponding author
# (joint) last author

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