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| 001 | 887857 | ||
| 005 | 20240711085634.0 | ||
| 024 | 7 | _ | |2 doi |a 10.3390/membranes10110339 |
| 024 | 7 | _ | |2 Handle |a 2128/26142 |
| 024 | 7 | _ | |2 pmid |a 33198304 |
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| 037 | _ | _ | |a FZJ-2020-04483 |
| 082 | _ | _ | |a 570 |
| 100 | 1 | _ | |0 P:(DE-Juel1)180798 |a Leonard, kwati |b 0 |e Corresponding author |
| 245 | _ | _ | |a Processing Ceramic Proton Conductor Membranes for Use in Steam Electrolysis |
| 260 | _ | _ | |a Basel |b MDPI |c 2020 |
| 336 | 7 | _ | |2 DRIVER |a article |
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| 336 | 7 | _ | |0 PUB:(DE-HGF)16 |2 PUB:(DE-HGF) |a Journal Article |b journal |m journal |s 1605277480_16531 |
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| 520 | _ | _ | |a Steam electrolysis constitutes a prospective technology for industrial-scale hydrogen production. The use of ceramic proton-conducting electrolytes is a beneficial option for lowering the operating temperature. However, a significant challenge with this type of electrolyte has been upscaling robust planar type devices. The fabrication of such multi-layered devices, usually via a tape casting process, requires careful control of individual layers’ shrinkages to prevent warping and cracks during sintering. The present work highlights the successful processing of 50 × 50 mm2 planar electrode-supported barium cerium yttrium zirconate BaZr0.44Ce0.36Y0.2O2.9 (BZCY(54)8/92) half cells via a sequential tape casting approach. The sintering parameters of the half-cells were analyzed and adjusted to obtain defect-free half-cells with diminished warping. Suitably dense and gas-tight electrolyte layers are obtained after co-sintering at 1350 °C for 5 h. We then assembled an electrolysis cell using Ba0.5La0.5CoO3−δ as the steam electrode, screen printed on the electrolyte layer, and fired at 800 °C. A typical Ba0.5La0.5CoO3−δ|BaZr0.44Ce0.36Y0.2O3−δ(15 μm)|NiO-SrZr0.5Ce0.4Y0.1O3−δ cell at 600 °C with 80% steam in the anode compartment reached reproducible terminal voltages of 1.4 V @ 500 mA·cm−2, achieving ~84% Faradaic efficiency. Besides electrochemical characterization, the morphology and microstructure of the layered half-cells were analyzed by a combination of high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) and energy-dispersive X-ray spectroscopy. Our results also provide a feasible approach for realizing the low-cost fabrication of large-sized protonic ceramic conducting electrolysis cells (PCECs) |
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| 700 | 1 | _ | |0 P:(DE-Juel1)144923 |a Deibert, Wendelin |b 1 |u fzj |
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| 700 | 1 | _ | |0 P:(DE-Juel1)129637 |a Meulenberg, Wilhelm A. |b 3 |u fzj |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Ishihara, Tatsumi |b 4 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Matsumoto, Hiroshige |b 5 |
| 773 | _ | _ | |0 PERI:(DE-600)2614641-1 |a 10.3390/membranes10110339 |n 11 |p 339 |t Membranes |v 10 |x 2077-0375 |y 2020 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/887857/files/membranes-10-00339-v2-1.pdf |y OpenAccess |
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