Tape-cast asymmetric membranes for hydrogen separation |
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| Affiliation: | 1. Department of Chemical Engineering and Materials Science, Yuan Ze University, No. 135, Yuan-Tung Rd., Chungli 320, Taoyuan, Taiwan;2. Department of Materials Science and Engineering, National Central University, No. 300, Jhongda Rd., Chungli 320, Taoyuan, Taiwan;3. Department of Materials Science and Engineering, National United University, No. 1, Lienda Rd., Miaoli 360, Taiwan;1. German Aerospace Centre (DLR), Institute of Technical Thermodynamics, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany;2. Institute of Thermodynamics and Thermal Engineering (ITW), Universität Stuttgart, Pfaffenwaldring 6, 70550 Stuttgart, Germany;3. Université Grenoble Alpes, Laboratoire d''Electrochimie et de Physico-Chimie des Matériaux et des Interfaces, F-38000 Grenoble, France;4. CNRS, Laboratoire d’Electrochimie et de Physico-Chimie des Matériaux et des Interfaces, F-38000 Grenoble, France;5. Institute of Science and Technology for Ceramics (ISTEC) of the National Research Council (CNR), Via Granarolo 64, I-48018 Faenza, RA, Italy;1. School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, 510640 Guangzhou, China;2. Institute of Physical Chemistry and Electrochemistry, Leibniz University of Hannover, Callinstrasse 22, 30167 Hannover, Germany;3. School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia;1. School of Chemical Engineering, Shandong University of Technology, Zibo 255049, China;2. Department of Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China;3. Department of Chemical Engineering, Curtin University, Perth, WA 6845, Australia |
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| Abstract: | Ceramic hydrogen separation membrane is a promising technology for obtaining pure hydrogen in a wide range of processes including power generation with pre-combustion CO2 capture, water-gas shift, methane reforming, etc. This work presents for the first time the production of cer-cer asymmetrical composite membranes. BaCe0.65Zr0.20Y0.15O3-δ (BCZY) supported BCZY- Gd0.2Ce0.8O2-δ (GDC) membranes were produced by tape casting. Three different sintering aid incorporation methods were investigated to enhance the final density of the BCZY-GDC layer. The optimization of the whole process leads to produce planar crack-free asymmetrical proton conductive membranes with Ø=12 mm, constituted by a porous 350 µm thick BCZY substrate with an open porosity of 48%, and a 20 µm thick gas tight BCZY-GDC layer. |
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| Keywords: | BCZY-GDC Tape casting (A) Composites (B) Membranes (E) |
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