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Formation and Characterization of Inorganic Membranes from Zeolite-Silica Microcomposites

Published online by Cambridge University Press:  25 February 2011

Thomas Bein ,
Kelly Brown ,
Patricia Enzel  and
C. Jeffrey Brinker
Thomas Bein
Affiliation:
Department of Chemistry, University of New Mexico, Albuquerque, NM 87131
Kelly Brown
Affiliation:
Department of Chemistry, University of New Mexico, Albuquerque, NM 87131
Patricia Enzel
Affiliation:
Department of Chemistry, University of New Mexico, Albuquerque, NM 87131
C. Jeffrey Brinker
Affiliation:
Sandia National Laboratories, P. O. Box 5800, Albuquerque, NM 87185
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Abstract

Small crystals of zeolites (500–1000 nm) with two- and three-dimensional channel systems (faujasite and ZSM-5 structures) were embedded in amorphous thin films derived from TEOS hydrolyzed in alcoholic solution. Scanning electron microscopy studies show that the zeolites can be quite evenly dispersed in the membrane, resulting in single layers of zeolite crystals protruding out of the amorphous matrix. In situ FT-IR studies with a series of probe molecules revealed that in most membranes the zeolites were 100% accessible from the gas phase. The membranes excluded molecules which are larger than the pore openings of the zeolite embedded in the composite.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 121: Symposium H – Better Ceramics Through Chemistry III , 1988 , 761
Copyright
Copyright © Materials Research Society 1988

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References

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