Paper Title:
Ceramic Chemical Sensors: An Overview
  Abstract

Electrostatic potential drops across interfaces caused by the exchange of ions together with electrons may be used in various ways to measure the concentration of chemical species. Potentiometric sensors make use of thermodynamic equilibration between the gas and the solid electrolyte (type I and II) or the gas and a predominantly electronically conducting mixed conducting electrode in combination with a junction at the electrode/electrolyte interface (type III). Kinetic sensors make use of the transfer of ions across interfaces under non-equilibrium conditions and relate the rate determining process to the concentration of the gas. Response time, selectivity and sensitivity effects are discussed.

  Info
Periodical
Edited by
P. VINCENZINI
Pages
1809-1817
DOI
10.4028/www.scientific.net/AST.45.1809
Citation
W. Weppner, "Ceramic Chemical Sensors: An Overview", Advances in Science and Technology, Vol. 45, pp. 1809-1817, 2006
Online since
October 2006
Authors
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