LAURENCIN, Jérôme; FLURA, Aurelien; SDANGHI, Giuseppe; FOURCADE, Sébastien; VIBHU, Vaibhav; SALVETAT, Jean-Paul; BASSAT, Jean-Marc.

Métadonnées

Licence d’utilisation du document

LAURENCIN, Jérôme
Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux [LITEN]

FLURA, Aurelien
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

SDANGHI, Giuseppe
Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux [LITEN]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

Langue

Communication dans un congrès

Ce document a été publié dans

EFCF 2022 : 15th European SOFC & SOE Forum, 5-8 July 2022, Lucerne, Switzerland : proceedings, EFCF 2022 : 15th European SOFC & SOE Forum, 5-8 July 2022, Lucerne, Switzerland : proceedings, EFCF 2022: 15th European SOFC & SOE Forum, 2022-07-05, Lucerne. 2022p. B1503 (12 pages)

Résumé en anglais

MIEC (Mixed Ionic Electronic Conductors) oxides combine, in addition to a high electronic conductivity, high oxygen diffusivity (D) and oxygen surface exchange (k) coefficients. These properties can be directly determined thanks to the so-called IEDP (Isotopic Exchange Depth Profiling) method, which leads to determine the tracer coefficients D* and k*. To date, the reported measurements in the literature have beenperformed at ambient pressure and even below. However, for a higher efficiency of hydrogen production at the system level, or for a ‘Power-to-Gas’ application, it is envisaged to operate the Solid Oxide Electrolysers (SOE) at high pressures, between 10 to 60 bars. In this frame, it becomes mandatory to assess the oxygen reduction/oxidation and the transport properties of the oxygen electrodes materials in the operating conditions, i.e. when there are submitted to such high pressure (HP) at high temperature.< Réduire

Mots clés en anglais

Oxygen diffusion

Electrode materials

Surface exchange coefficients

High pressure

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026