Bridge-type interface optimization on a dual-semiconductor heterostructure toward high performance overall water splitting
文献类型：期刊论文
| 作者 | Duan, X; Wang, C; Ma, B ; Cao XZ(曹兴忠); Cao, XZ; He, S; Han, JB; Wei, M; Evans, DG
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| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2018 |
| 卷号 | 6期号:17页码:7871-7876 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/c8ta02001a |
| 文献子类 | Article |
| 英文摘要 | Interfacial carrier transportation is a key step in photocatalytic water splitting reaction. Herein, we fabricated a series of Cu2O@ZnCr-layered double hydroxide (LDH) photocatalysts with tunable interfacial properties, by precise regulation over a covalent-bonding-bridge structure at the heterointerface. The Cu2O@ZnCrLDH photocatalyst with an optimized interface exhibits a stoichiometric production of H-2 and O-2 with a generation rate of 3.42 and 1.63 mu mol h(-1), respectively, without any sacrificial agents or co-catalysts. This activity is among the highest reported for photocatalysts under the same conditions. By using extended X-ray absorption fine structure (EXAFS) and coincidence Doppler broadening positron annihilation spectroscopy (CDB-PAS), for the first time, we substantiated that a bridge-type bonding at the heterointerface strongly facilitates the interfacial transportation of photo-induced carriers via a Z-scheme route. This provides direct experimental evidence for carrier interfacial transportation, beyond previously reported theoretical predictions and simulations. It is expected that this modulation and optimization over the heterostructure interface can be extended to other dual-semiconductor photocatalysts with high performance. |
| 电子版国际标准刊号 | 2050-7496 |
| WOS关键词 | STATE ELECTRON MEDIATOR ; REDUCED GRAPHENE OXIDE ; VISIBLE-LIGHT-DRIVEN ; HYDROGEN EVOLUTION ; FE-CU ; PHOTOCATALYST ; DEGRADATION ; IRRADIATION ; POLLUTANTS ; EFFICIENCY |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000431621700061 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285886]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Duan, X,Wang, C,Ma, B,et al. Bridge-type interface optimization on a dual-semiconductor heterostructure toward high performance overall water splitting[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(17):7871-7876. |
| APA | Duan, X.,Wang, C.,Ma, B.,曹兴忠.,Cao, XZ.,...&Evans, DG.(2018).Bridge-type interface optimization on a dual-semiconductor heterostructure toward high performance overall water splitting.JOURNAL OF MATERIALS CHEMISTRY A,6(17),7871-7876. |
| MLA | Duan, X,et al."Bridge-type interface optimization on a dual-semiconductor heterostructure toward high performance overall water splitting".JOURNAL OF MATERIALS CHEMISTRY A 6.17(2018):7871-7876. |
入库方式： OAI收割
来源：高能物理研究所
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