| 第一作者： | Jia, LJ (Jia, Lujian); He, GH (He, Guanghu); Zhang, Y (Zhang, Yan); Caro, J (Caro, Juergen); Jiang, HQ (Jiang, Heqing); |
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| 联系作者： | Jia, LJ (Jia, Lujian); He, GH (He, Guanghu); Zhang, Y (Zhang, Yan); Caro, J (Caro, Juergen); Jiang, HQ (Jiang, Heqing); |
| 发表年度： | 2021 |
| 期： | 10 |
| 卷： | 60 |
| 页： | 5204-5208 |
| 摘要： | Using oxygen permeable membranes (OPMs) to upgrade low-purity hydrogen is a promising concept for high-purity H-2 production. At high temperatures, water dissociates into hydrogen and oxygen. The oxygen permeates through OPM and oxidizes hydrogen in a waste stream on the other side of the membrane. Pure hydrogen can be obtained on the water-splitting side after condensation. However, the existing Co- and Fe-based OPMs are chemically instable as a result of the over-reduction of Co and Fe ions under reducing atmospheres. Herein, a dual-phase membrane Ce0.9Pr0.1O2-delta-Pr0.1Sr0.9Mg0.1Ti0.9O3-delta (CPO-PSM-Ti) with excellent chemical stability and mixed oxygen ionic-electronic conductivity under reducing atmospheres was developed for H-2 purification. An acceptable H-2 production rate of 0.52 mL min(-1) cm(-2) is achieved at 940 degrees C. No obvious degradation during 180 h of operation indicates the robust stability of CPO-PSM-Ti membrane. The proven mixed conductivity and excellent stability of CPO-PSM-Ti give prospective advantages over existing OPMs for upgrading low-purity hydrogen. |
| 刊物名称： | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION |
| 影响因子： | 12.257 |
| 全文链接： | https://onlinelibrary.wiley.com/doi/10.1002/anie.202010184 |
