MAUVY, Fabrice; BOEHM, Emmanuelle; BASSAT, Jean-Marc.; GRENIER, Jean-Claude; FOULETIER, Jacques

doi:10.1016/j.ssi.2007.06.008

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MAUVY, Fabrice
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

BOEHM, Emmanuelle
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

BASSAT, Jean-Marc.
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Solid State Ionics. 2007, vol. 178, n° 19-20, p. 1200-1204

Elsevier

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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.< Leer menos

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Lanthanum nickelate

Oxygen permeation

IT-SOFC cathode

Oxygen diffusion coefficient

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Oxygen permeation fluxes through La2Cu0.5Ni0.5O4+δ dense ceramics: Comparison with oxygen diffusion coefficients

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