| 第一作者： | He, GH (He, Guanghu); Ling, YH (Ling, Yihan); Jiang, HQ (Jiang, Heqing); Toghan, A (Toghan, Arafat); |
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| 联系作者： | He, GH (He, Guanghu); Ling, YH (Ling, Yihan); Jiang, HQ (Jiang, Heqing); Toghan, A (Toghan, Arafat); |
| 发表年度： | 2021 |
| 期： | 33 |
| 卷： | 9 |
| 页： | 11147-11154 |
| 摘要： | Hydrogen production from water splitting by a mixed ionic-electronic conducting membrane is an efficient and promising technology; however, it is severely impeded by the poor reduction tolerance of the existing cobalt- or iron-containing membrane materials. In this work, a novel BaMg0.1Zr0.05Ti0.85O3-delta (BMZ-Ti) perovskite was synthesized by combining citric acid and ethylenediaminetetraacetic acid methods. The new membrane is characterized by its superior chemical stability in a wet H-2 atmosphere as well as with environment-responsive mixed conductivity, generating from the mild reduction of Ti4+ at low oxygen partial pressure. Benefiting from these combined properties, the BMZ-Ti membrane showed an oxygen permeation flux larger than 0.3 mL min(-1) cm(-2) under a H2O/(CH4-CO2) gradient, more than 50 times larger than that under an air/He gradient, which was able to be used for coupling methane reforming with water dissociation to efficiently produce hydrogen with a production rate of 0.8 mL min(-1) cm(-2). Furthermore, no performance degradation was observed during an over 100 h test. These results highlight the potential of the BMZ-Ti membrane, with both environment-responsive mixed conductivity and excellent chemical stability, as a novel oxygen permeable membrane for hydrogen production from water. |
| 刊物名称： | ACS SUSTAINABLE CHEMISTRY & ENGINEERING |
| 影响因子： | 6.97 |
| 全文链接： | https://pubs.acs.org/doi/10.1021/acssuschemeng.1c03118 |
