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Delahaye, T., Jardiel, T., Joubert, O., Laucournet, R., Gauthier, G. & Caldes, M. T. (2011) Electrochemical properties of novel SOFC dual electrode La0.75Sr0.25Cr0.5Mn0.3Ni0.2O3 (-) (delta). Solid State Ion. 184 39–41.
Added by: Laurent Cournède (2016-03-10 21:32:21) |
| Type de référence: Article DOI: 10.1016/j.ssi.2010.10.015 Numéro d'identification (ISBN etc.): 0167-2738 Clé BibTeX: Delahaye2011 Voir tous les détails bibliographiques  |
Catégories: ST2E Mots-clés: Anode, Cathode, Electrical conductivity, Electrochemical performances, lscm, oxide fuel-cells, performance, Perovskite, SOFC electrodes, steam Créateurs: Caldes, Delahaye, Gauthier, Jardiel, Joubert, Laucournet Collection: Solid State Ion. |
Consultations : 1/539
Indice de consultation : 4% Indice de popularité : 1% |
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The perovskite La0.75Sr0.25Cr0.5Mn0.3Ni0.2O3 (- delta) (LSCMMn0.30Ni0.20) was evaluated as potential electrode for solid oxide fuel cells. The electrochemical performances of LSCMMn0.30Ni0.20 for hydrogen oxidation and oxygen reduction reactions were studied at 800 degrees C. Symmetrical cells LSCMMn0.30Ni0.20/YSZ/LSCMMn0.30Ni0.20 were studied by electrochemical impedance spectroscopy. The total conductivity of LSCMMn0.30Ni0.20 is 22 S cm(-1) in air and 0.8 S cm(-1) under wet 5\% H-2/Ar at 800 degrees C. The area specific resistance (ASR) at 800 degrees C for hydrogen oxidation reaction is 1 Omega cm(2). The ASR for oxygen reduction reaction is 1.6 Omega cm(2). An ageing study during 24 h shows a relatively good stability of the electrochemical performances. LSCMMn0.3Ni0.2 seems to be a promising dual electrode for a symmetrical SOFC. (C) 2010 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède |