Mechanistic understanding and electrochemical modeling of mixed conducting (SOFC) electrodes
作者： R. Merkle , J. Maier , J. Fleig
DOI: 10.1002/9780470974001.F500030
关键词:
摘要: 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 underlying fundamental quantities, such as bulk defect concentrations and mobilites, surface reaction mechanism corresponding equilibrium exchange rate. Complications due charged oxygen adsorbates arising under an applied dc bias discussed. Dense thin-film microelectrodes serve valuable model systems for achieving mechanistic understanding obtaining reliable experimental data. Keywords: solid cell; cathode; mixed conductor; equivalent circuit; microelectrodes; oxygen incorporation mechanism; adsorbate coverage; current-voltage-curves; modeling
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