期刊
SOLID OXIDE FUEL CELLS 13 (SOFC-XIII)
卷 57, 期 1, 页码 2515-2525出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/05701.2515ecst
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Active thickness in SOFC anodes is investigated by using one-dimensional numerical simulation. The effects of the operating conditions and the microstructural parameters of the porous anodes on the active thickness are systematically investigated. The non-linearity of the Butler-Volmer equation used for the electrochemical reaction model is found to be the key to explain the behaviour of the active thickness. The characteristic length of oxide-ion conduction is introduced by taking the ratio between the oxide-ion conductivity and the electrochemical reaction rate, which can be used as a designing parameter to predict the active thickness.
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