Oxygen reduction at porous and dense cathodes for solid oxide fuel cells

Various cathode materials for use in solid oxide fuel cells, yttria-stabilized zirconia based, were examined by ac impedance and their current-voltage characteristics recorded: platinum, gold, silver, and La 0.8Sr 0.2MnO 3. The oxygen reduction reaction mechanisms for the different cases are present...

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Bibliographic Details
Published in:Electrochimica acta 1994-08, Vol.39 (11), p.1675-1680
Main Authors: Van herle, J., McEvoy, A.J., Ravindranathan Thampi, K.
Format: Article
Language:English
Subjects:
cathode to solid electrolyte interface
Chemistry
Electrochemistry
Exact sciences and technology
General and physical chemistry
impedance spectroscopy
Kinetics and mechanism of reactions
oxygen reduction
perovskite electrode
solid oxide fuel cells
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Summary:Various cathode materials for use in solid oxide fuel cells, yttria-stabilized zirconia based, were examined by ac impedance and their current-voltage characteristics recorded: platinum, gold, silver, and La 0.8Sr 0.2MnO 3. The oxygen reduction reaction mechanisms for the different cases are presented, as well as conclusions for the optimal electrode structure design.
ISSN:0013-4686
1873-3859
DOI:10.1016/0013-4686(94)85153-0