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Letilly, M., La Salle, L. G. A. & Joubert, O. (2009) Electrochemical Optimization of LSCF/BIT07 as an Alternative Cathode/Electrolyte Couple for SOFC. Singhal, S. C. & Yokokawa, H. (Eds.), Solid Oxide Fuel Cells 11 (sofc-Xi) Pennington. 
Added by: Laurent Cournède (2016-03-10 21:41:25)
Type de référence: Chapitre/Section
Numéro d'identification (ISBN etc.): 978-1-60768-089-5
Clé BibTeX: Letilly2009a
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Catégories: ST2E
Mots-clés: composite cathodes, electrolyte, oxide fuel-cells, thin-films
Créateurs: Joubert, La Salle, Letilly, Singhal, Yokokawa
Éditeur: Electrochemical Soc Inc (Pennington)
Collection: Solid {Oxide} {Fuel} {Cells} 11 (sofc-{Xi})
Consultations : 16/550
Indice de consultation : 2%
Indice de popularité : 0.5%
Résumé     
In order to validate the use of BaIn0.3Ti0.7O2.85 (BIT07) as electrolyte material in an intermediate temperature SOFC, its chemical, mechanical and electrochemical compatibilities with the commonly studied MIEC (mixed ionic and electronic conductor) cathode material La0.58Sr0.4Co0.2Fe0.8O3-delta (LSCF) have been checked. X-ray diffraction studies show that the two compounds don't react together below 1000 degrees C. Symmetrical cells cathode/electrolyte/cathode have been prepared at different temperatures in order to study the influence of the formation of a mixed compound at the interface onto the cohesion and studied by SEM observation: for sintering temperatures comprised in the 1000-1150 degrees C, the quality of the interface remains good even after 400 hours at 750 degrees C, contrary to that is observed when YSZ is used instead of BIT07. Using electrochemical impedance spectroscopy, the screen printing parameters of LSCF on BIT07 have been optimized leading to a low Area Specific Resistance (ASR) value of 0.05 Omega.cm(2) at 700 degrees C.
Added by: Laurent Cournède  
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