Oxygen permeation fluxes through La2Cu0.5Ni0.5O4+δ dense ceramics: Comparison with oxygen diffusion coefficients
FOULETIER, Jacques
Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces [LEPMI ]
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Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces [LEPMI ]
Langue
en
Article de revue
Ce document a été publié dans
Solid State Ionics. 2007, vol. 178, n° 19-20, p. 1200-1204
Elsevier
Résumé en anglais
The copper-substituted lanthanum nickelate (La2Ni0.5Cu0.5O4+δ) was investigated as possible cathode material for intermediate temperature solid oxide fuel cells because of its mixed ionic and electronic conducting properties ...Lire la suite >
The copper-substituted lanthanum nickelate (La2Ni0.5Cu0.5O4+δ) was investigated as possible cathode material for intermediate temperature solid oxide fuel cells because of its mixed ionic and electronic conducting properties (MIEC oxide). The La2Ni0.5Cu0.5O4+δ compound was prepared using the “nitrate–citrate” route. Oxygen permeation fluxes through dense membranes have been measured under various oxygen partial pressure gradients in the 850–1200 K temperature range. The oxygen transport properties are compared with the previous measurements using isotopic exchange depth profile experiments and conductivity relaxation method: all of them show a very good agreement.< Réduire
Mots clés en anglais
Lanthanum nickelate
Oxygen permeation
IT-SOFC cathode
Oxygen diffusion coefficient
Origine
Importé de halUnités de recherche