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An Oxygen-Permeable Bilayer MIEC-Redox Membrane Concept
Valery V Belousov1, Sergey V Fedorov1
1Laboratory of Functional Ceramics, A.A. Baikov Institute of Metallurgy and Materials Science , Russian Academy of Sciences , 49 Leninskii Prospekt , 119334 Moscow , Russia.
Abstract:
Mixed ionic-electronic conducting (MIEC) membranes attract the attention because of their high potential for oxygen separation and energy conversion applications. The different fabrication methods of asymmetric membranes consisting of a thin MIEC layer on porous support were developed. The basically dense but not completely hermetic thin layers were achieved. To overcome this problem, we suggest a new concept of bilayer MIEC-Redox membrane. This solid/liquid composite membrane consists of a gastight MIEC thin external layer and a thick internal layer in which the redox reactions and oxygen bubbling occur. Here, we report the transport properties of a copper oxide-based MIEC-Redox membrane.
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