Mechanistic understanding and electrochemical modeling of mixed conducting (SOFC) electrodes
Advances in Electrocatalysis, Materials, Diagnostics and Durability
Materials for high temperature fuel cells
Published Online: 15 DEC 2010
Copyright © John Wiley & Sons, Ltd. All rights reserved.
Handbook of Fuel Cells
How to Cite
Merkle, R., Maier, J. and Fleig, J. 2010. Mechanistic understanding and electrochemical modeling of mixed conducting (SOFC) electrodes. Handbook of Fuel Cells. .
- Published Online: 15 DEC 2010
In this article it is shown how the phenomenological transport parameters measured on a mixed conducting solid oxide fuel cell (SOFC) cathode are related to the underlying fundamental quantities, such as bulk defect concentrations and mobilites, and surface reaction mechanism and corresponding equilibrium exchange rate. Complications due to charged oxygen adsorbates and arising under an applied dc bias are discussed. Dense thin-film microelectrodes are shown to serve as valuable model systems for achieving a mechanistic understanding and obtaining reliable experimental data.
- solid oxide fuel cell;
- mixed conductor;
- equivalent circuit;
- oxygen incorporation mechanism;
- adsorbate coverage;