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题名: Interface Engineering of a CoOx/Ta3N5 Photocatalyst for Unprecedented Water Oxidation Performance under Visible-Light-Irradiation
作者: Chen, Shanshan1, 2;  Shen, Shuai1;  Liu, Guiji1, 2;  Qi, Yu1, 2;  Zhang, Fuxiang1;  Li, Can1
关键词: cocatalysts ;  interface engineering ;  photocatalysis ;  tantalum nitride ;  water splitting
刊名: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
发表日期: 2015-03-02
DOI: 10.1002/anie.201409906
卷: 54, 期:10, 页:3047-3051
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: Cocatalysts have been extensively used to promote water oxidation efficiency in solar-to-chemical energy conversion, but the influence of interface compatibility between semiconductor and cocatalyst has been rarely addressed. Here we demonstrate a feasible strategy of interface wettability modification to enhance water oxidation efficiency of the state-of-the-art CoOx/Ta3N5 system. When the hydrophobic feature of a Ta3N5 semiconductor was modulated to a hydrophilic one by insitu or exsitu surface coating with a magnesia nanolayer (2-5nm), the interfacial contact between the hydrophilic CoOx cocatalyst and the modified hydrophilic Ta3N5 semiconductor was greatly improved. Consequently, the visible-light-driven photocatalytic oxygen evolution rate of the resulting CoOx/MgO(in)-Ta3N5 photocatalyst is ca. 23 times that of the pristine Ta3N5 sample, with a new record (11.3%) of apparent quantum efficiency (AQE) under 500-600nm illumination.
关键词[WOS]: TA-O-N ;  RECENT PROGRESS ;  CORE/SHELL NANOPARTICLES ;  LAYER ;  PHOTOANODES ;  BIVO4 ;  FABRICATION ;  COCATALYST ;  CATALYSTS ;  NATAO3
语种: 英语
WOS记录号: WOS:000350302300030
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146059
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 Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Chen, Shanshan,Shen, Shuai,Liu, Guiji,et al. Interface Engineering of a CoOx/Ta3N5 Photocatalyst for Unprecedented Water Oxidation Performance under Visible-Light-Irradiation[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2015,54(10):3047-3051.
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