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Etude et optimisation des propriétés de transport de l’oxygène à travers des matériaux conducteurs mixtes pour la production d’énergie décarbonée

Abstract : Mixed ionic and electronic conductors (MIEC) are used in numerous areas, such as cathode materials for the solid oxide fuel cells (SOFC) or as membrane materials for the oxygen gas separation. However, currently, oxygen semi-permeation fluxes produced by ceramic membranes are too low for potential industrial applications. Our study focuses on the better understanding of the oxygen transport mechanisms through the ceramic membranes in order to improve the oxygen semi-permeation fluxes through the membrane. The oxygen transport properties of lanthanum-based or barium-based perovskite materials are characterized and studied by a new and original setup. Then, new architectures of membranes are developed and their electrochemical performances are characterized.
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https://tel.archives-ouvertes.fr/tel-03076700
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Submitted on : Wednesday, December 16, 2020 - 2:50:08 PM
Last modification on : Thursday, December 17, 2020 - 3:33:15 AM
Long-term archiving on: : Wednesday, March 17, 2021 - 7:27:12 PM

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  • HAL Id : tel-03076700, version 1

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Eva Deronzier. Etude et optimisation des propriétés de transport de l’oxygène à travers des matériaux conducteurs mixtes pour la production d’énergie décarbonée. Matériaux. Université de Limoges, 2020. Français. ⟨NNT : 2020LIMO0056⟩. ⟨tel-03076700⟩

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