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题名: Cl- making overall water splitting possible on TiO2-based photocatalysts
作者: Huang, Lei1;  Li, Rengui1, 2;  Chong, Ruifeng1, 2;  Liu, Gang1;  Han, Jingfeng1, 2;  Li, Can1
刊名: CATALYSIS SCIENCE & TECHNOLOGY
发表日期: 2014
DOI: 10.1039/c4cy00408f
卷: 4, 期:9, 页:2913-2918
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Overall water splitting on a TiO2-based photocatalyst has been extensively investigated. However, in most cases, the products are not in a stoichiometric ratio, thus the reaction is not really overall water splitting. In this work, we found that in the presence of Cl-, the evolution of O-2 and H-2 over Pt/TiO2 can be successfully achieved, and the activity can be enhanced up to 3 times compared to having no Cl- present. Furthermore, the H-2 : O-2 ratio can be close to 2.0, i.e. the stoichiometric ratio of overall water splitting. It is proposed that the Cl- ion is involved with the reaction intermediate of O-2 evolution from water oxidation. Our work not only reported overall water splitting on a TiO2-based photocatalyst, but also provided experimental evidence for understanding the possible reaction process and the mechanism of photocatalytic water splitting.
关键词[WOS]: VISIBLE-LIGHT IRRADIATION ;  SHUTTLE REDOX MEDIATOR ;  HYDROGEN-PRODUCTION ;  LIQUID WATER ;  CARBONATE ADDITION ;  AQUEOUS-SOLUTIONS ;  CHLORINE DIOXIDE ;  INMO4 M ;  PHOTOLYSIS ;  TIO2
语种: 英语
WOS记录号: WOS:000340208400018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145899
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:
Huang, Lei,Li, Rengui,Chong, Ruifeng,et al. Cl- making overall water splitting possible on TiO2-based photocatalysts[J]. CATALYSIS SCIENCE & TECHNOLOGY,2014,4(9):2913-2918.
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