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Noirault, S., Quarez, E., Caldes, M., La Salle, L. G. A. & Joubert, O. (2009) BITX: New Electrolyte For Oxide Ion And Proton 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: Noirault2009a
Voir tous les détails bibliographiques
Catégories: ST2E
Mots-clés: Oxygen
Créateurs: Caldes, Joubert, La Salle, Noirault, Quarez, Singhal, Yokokawa
Éditeur: Electrochemical Soc Inc (Pennington)
Collection: Solid {Oxide} {Fuel} {Cells} 11 (sofc-{Xi})
Consultations : 21/686
Indice de consultation : 4%
Indice de popularité : 1%
Résumé     
Ba2In2(1-x) Ti2xO5+x square(1-x) compounds (BITx) have been prepared by solid state reaction. Whereas Ba2In2O5 corresponds to an ordered Brownmillerite structure, for 0.15 {<} x {<} 1 all members adopt a disordered cubic perovskite structure at RT. This phase transformation induces a drastic increase of the anionic conductivity level. At 700 degrees C, 10(-2) S. cm(-1) is obtained for BIT07. Stable under hydrogen, the x = 0.7 was selected and a SOFC built on BIT07 and Ni/BIT07 cermet was tested. The peak power is about 500 mW at 800 degrees C. Due to the basicity of these compounds, water uptake of BITx was investigated. The change of the lattice volume upon hydration, inferred from X-ray diffraction data, appears as an important parameter for the characterization of perovskite-type proton conductors. Proton conductivity higher than 1 mS.cm(-1) was measured at 400 degrees C for BIT02. A ceramic fuel cell based on this material as electrolyte was evaluated.
Added by: Laurent Cournède  
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