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Sensor Response of Stilbite Single Crystals Under “in Situ” Conditions

Published online by Cambridge University Press:  11 February 2011

O. Schäf ,
H. Ghobarkar  and
P. Knauth
O. Schäf
Affiliation:
Laboratory MADIREL, University of Provence-CNRS (UMR 6121) Centre St-Jérôme, 13397 Marseille Cedex 20, France.
H. Ghobarkar
Affiliation:
Free University of Berlin, Institute for Mineralogy, Berlin, Germany
P. Knauth
Affiliation:
Laboratory MADIREL, University of Provence-CNRS (UMR 6121) Centre St-Jérôme, 13397 Marseille Cedex 20, France.
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Abstract

The isothermal conductivity of natural stilbite single crystals depends on water content, polar organic molecule concentration and charge compensating cation species. The observed interaction processes are almost completely adsorptive at temperatures below 110°C; catalytic oxidation of the organic molecules is taking place at much higher temperatures, where zeolitic water is almost completely desorbed. A schematic model describing the observed conductivity modifications is developed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 756: Symposia EE/FF – Solid-State Ionics – Materials for Fuel Cells and Fuel Processors , 2002 , EE9.6
Copyright
Copyright © Materials Research Society 2003

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References

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