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Noirault, S., Celerier, S., Joubert, O., Caldes, M. T. & Piffard, Y. (2007) Incorporation of water and fast proton conduction in the inherently oxygen-dericient compound La26O27 rectangle(BO3)(8). Adv. Mater. 19 867–+.
Added by: Laurent Cournède (2016-03-10 22:02:30) |
| Type de référence: Article DOI: 10.1002/adma.200602033 Numéro d'identification (ISBN etc.): 0935-9648 Clé BibTeX: Noirault2007b Voir tous les détails bibliographiques  |
Catégories: ST2E Mots-clés: diffraction, ionic-conductivity, Perovskite, sintered oxides Créateurs: Caldes, Celerier, Joubert, Noirault, Piffard Collection: Adv. Mater. |
Consultations : 1/999
Indice de consultation : 7% Indice de popularité : 1.75% |
| Résumé |
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The monoclinic inherently oxygen-deficient compound La26O27 rectangle (BO3)(8) can react with water vapor and incorporate protons by filling the oxygen-ion vacancy and forming hydroxide ions, leading to the oxy-hydroxy-borate La26O26(OH)(2)(BO3)(8). This reaction is reversible. The conductivity measured under wet conditions at 300 degrees C is that of La26O26(OH)(2)(BO3)(8); at 600 degrees C the proton contribution to the total conductivity is still clearly visible (see figure).
Added by: Laurent Cournède |