Publication date: 10th April 2024
Ba(Zr,Ce,Y)O3-δ proton-conducting materials: manufacture, performance and stability
W. A. Meulenberg1,2,*, J. Malzbender1, J. L. Wolter1, W. Deibert1, O. Guillon1, J. M. Serra3,
C. Segarra3, , A. Dos Santos3, L. Almar3, D. Catalán-Martínez3, M. Fabuel3, S. Escolástico3,
W. Zhou1
1 Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research (IEK), 52425 Jülich, Germany
2 University of Twente, Faculty of Science and Technology, Inorganic Membranes, P.O. Box 217, 7500 AE, Enschede, the Netherlands
3 Instituto de Tecnología Química, Universitat Politècnica de València – Consejo Superior de Investigaciones Científicas, Av. Los Naranjos, s/n, 46022 Valencia, Spain
Abstract
Proton-conducting membranes have great potential for applications in proton conducting membrane reactors for the production of commodity chemicals or synthetic fuels as well as for use in solid oxide fuel cells. Ba(Zr,Ce, Y)O3-δ perovskite oxides are of particular interest due to its proven high proton conductivity and good chemical stability. In this work, fabrication of Ba(Zr,Ce, Y)O3-δ samples, including thick pellet, thin tape-cast and multi-layered half-cell, were studied to prevent the typical challenges like warping, cracking and delaminating. Materials with different stoichiometries were investigated, on their conductivity and chemical stability against NH3 and H2O, to select the most promised candidate for future compact membrane reactor. Mechanical behaviors including elastic modulus, hardness, fracture toughness and creep were investigated to warrant long-term structural stability. Thus, a systematic investigation on Ba(Zr,Ce, Y)O3-δ materials was carried out to pave the road towards widespread application of proton-conducting membranes.
Acknowledgements
This work was supported by “ALL-IN Zero”, Project No. 101069888 (EU project).
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