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Themodynamic and Kinetic Principles for Electrochemical Gas Sensors Based on Solid Ionic Conductors

Published online by Cambridge University Press:  01 February 2011

Evangelos D. Tsagarakis  and
Werner Weppner
Evangelos D. Tsagarakis
Affiliation:
Department of Materials Science and Engineering, Cornell University, Ithaca, N.Y. 14853, U.S.A.
Werner Weppner
Affiliation:
Faculty of Engineering, Christian Albrechts University, Kaiserstr. 2, 24143 Kiel, Germany
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Abstract

Several concepts can be applied for gas detection using solid ionic conductors. The fundamental characteristics and the essential variables for proper design of electrochemical cells are analyzed in terms of the sensing principle applied. The principal properties for materials as components of electrochemical devices are being illustrated. Employment of dynamic method allows implementation of the Fourier coefficients to generate a complex plane plot representation. This can be particularly useful for extracting information regarding the selectivity of an electrochemical cell to multiple gas species. Moreover, modeling the system response upon a periodical perturbation can be beneficial on understanding the individual processes and optimizing the overall performance.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 828: Symposium A – Semiconductor Materials for Sensing , 2004 , A3.3/K4.3
Copyright
Copyright © Materials Research Society 2005

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References

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