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Molecular Recognition on Acoustic Wave Devices: Modified Zeolite-Silica Thin Films With Tailored Adsorption Properties

Published online by Cambridge University Press:  25 February 2011

Yongan Yan ,
Thomas Bein ,
Kelly D. Brown ,
Ray Forrister  and
C. Jeffrey Brinker
Yongan Yan
Affiliation:
Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
Thomas Bein
Affiliation:
Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
Kelly D. Brown
Affiliation:
Department of Chemistry, University of New Mexico, Albuquerque, NM 87131, USA
Ray Forrister
Affiliation:
Department of Chemistry, University of New Mexico, Albuquerque, NM 87131, USA
C. Jeffrey Brinker
Affiliation:
Sandia National Laboratories, P. O. Box 5800, Albuquerque, NM 87185, USA
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Abstract

Microporous thin films composed either of zeolite crystals embedded in sol-gel derived glass or of a molecular coupling layer, zeolite crystals and a porous silica overlayer, were formed on the gold electrodes of Quartz Crystal Microbalances (QCM). The microporosity of the thin films was characterized by in situ nitrogen and vapor sorption isotherms. Both preparation methods result in thin films with substantial microporosity. Selective adsorption based on molecular size exclusion from the microporous films could be achieved.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 271: Symposium N – Better Ceramics Through Chemistry V , 1992 , 435
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

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