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题名: A Tantalum Nitride Photoanode Modified with a Hole-Storage Layer for Highly Stable Solar Water Splitting
作者: Liu, Guiji1;  Shi, Jingying1;  Zhang, Fuxiang1;  Chen, Zheng1;  Han, Jingfeng1;  Ding, Chunmei1;  Chen, Shanshan1;  Wang, Zhiliang1;  Han, Hongxian1;  Li, Can1
关键词: electrochemistry ;  ferrihydrite ;  photochemistry ;  tantalum nitride ;  water splitting
刊名: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
发表日期: 2014-07-01
DOI: 10.1002/anie.201404697
卷: 53, 期:28, 页:7295-7299
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Photoelectrochemical (PEC) water splitting is an ideal approach for renewable solar fuel production. One of the major problems is that narrow bandgap semiconductors, such as tantalum nitride, though possessing desirable band alignment for water splitting, suffer from poor photostability for water oxidation. For the first time it is shown that the presence of a ferrihydrite layer permits sustainable water oxidation at the tantalum nitride photoanode for at least 6 h with a benchmark photocurrent over 5 mAcm(-2), whereas the bare photoanode rapidly degrades within minutes. The remarkably enhanced photostability stems from the ferrihydrite, which acts as a hole-storage layer. Furthermore, this work demonstrates that it can be a general strategy for protecting narrow bandgap semi-conductors against photocorrosion in solar water splitting.
关键词[WOS]: TA3N5 NANOROD ARRAYS ;  OXYGEN EVOLUTION REACTION ;  SEMICONDUCTOR ELECTRODES ;  HEMATITE ELECTRODES ;  IRON OXYHYDROXIDE ;  OXIDATION ;  CATALYST ;  FERRIHYDRITE ;  EFFICIENT ;  PHOTOCURRENT
语种: 英语
WOS记录号: WOS:000338989500034
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145745
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Liu, Guiji,Shi, Jingying,Zhang, Fuxiang,et al. A Tantalum Nitride Photoanode Modified with a Hole-Storage Layer for Highly Stable Solar Water Splitting[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2014,53(28):7295-7299.
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