| 第一作者： | Liang, WY (Liang, Wenyuan); Zhang, Y (Zhang, Yan); Hu, TM (Hu, Tianmiao); Jiang, HQ (Jiang, Heqing); |
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| 联系作者： | Liang, WY (Liang, Wenyuan); Zhang, Y (Zhang, Yan); Hu, TM (Hu, Tianmiao); Jiang, HQ (Jiang, Heqing); |
| 发表年度： | 2021 |
| 期： | 66 |
| 卷： | 46 |
| 页： | 33143-33151 |
| 摘要： | Although lanthanum tungstates (Ln(n)WO(12)(-delta)) show superior CO2-tolerance compared to the traditional perovskite-type oxides, their hydrogen permeation fluxes are not competitive. Herein, a mixed oxygen ion-proton-electron triple-conducting membrane with a nominal composition of La5.5WO11.25-delta-La0.8Sr0.2FeO3-delta (LWO-LSF) was developed for H-2 production. The triple-conducting membrane is composed of a LWO phase with proton conductivity and a LSF phase with mixed oxygen ion-electron conductivities. In the LWO-LSF membrane, proton (H+) permeation and oxygen ion (O2-) counter-permeation property was simultaneously displayed. The improved H-2 production can be ascribed to (1) hydrogen permeated as H+ through LWO phase, and (2) hydrogen produced from water splitting that is enhanced by O2- counter-permeation through LSF phase. A higher H-2 flux of 0.15 mL min(-1) cm(-2) was achieved at 900 degrees C using LWO-LSF triple-conducting membrane, compared with the conventional proton-electron conducting membranes LWO or La5.5WO11.25-delta-La0.8Sr0.2CrO3-delta (LWO-LSC). Furthermore, the constant H-2 fluxes in various atmospheres indicated the good stability of LWO-LSF membrane in simulated raw hydrogen. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| 刊物名称： | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY |
| 影响因子： | 4.084 |
| 全文链接： | https://www.sciencedirect.com/science/article/pii/S0360319921028287?via%3Dihub |
