Journal of Solid State Electrochemistry

, Volume 10, Issue 8, pp 575–580 | Cite as

Classical, phenomenological analysis of the kinetics of reactions at the gas-exposed surface of mixed ionic electronic conductors

  • David S. Mebane
  • Meilin LiuEmail author
Original Paper


The kinetics of reactions occurring at the gas-exposed surfaces of charged mixed ionic electronic conductors (MIECs) are examined from theoretical first principles. Analysis based on the classical electrochemical potential-transition state theory model reveals that the nature of the reactions is electrochemical in general. However, the influence of the surface potential on the reaction rate is opposite for adsorption and incorporation reactions. Two-dimensional finite volume models of an MIEC as working electrode in a half-cell configuration are presented. The results for a simple, two-step reduction process show that the effect of the surface potential on the rate of reactions is minimal for incorporation-limited reactions but more influential for adsorption-limited reactions.


Adsorption Electrode reaction kinetics Perovskite-type crystals Electric current–potential relationship Fuel cell cathodes 



This work was supported by the U. S. Department of Energy, the National Energy Technology Laboratory, through the SECA Core Technology Program (Grant No. DE-FC26-02NT41572). Additional support for David Mebane is provided by The Boeing Company, through a Boeing Fellowship.


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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringGeorgia Institute of TechnologyAtlantaUSA

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