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学科主题: 物理化学
题名: Achieving solar overall water splitting with hybrid photosystems of photosystem II and artificial photocatalysts
作者: Wang, Wangyin1, 2;  Chen, Jun1;  Li, Can1;  Tian, Wenming2, 3
通讯作者: 陈钧 ;  李灿
刊名: NATURE COMMUNICATIONS
发表日期: 2014-08-01
DOI: 10.1038/ncomms5647
卷: 5, 期:1, 页:4647
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: Solar overall water splitting is a promising sustainable approach for solar-to-chemical energy conversion, which harnesses solar irradiation to oxidize water to oxygen and reduce the protons to hydrogen. The water oxidation step is vital but difficult to achieve through inorganic photocatalysis. However, nature offers an efficient light-driven water-oxidizing enzyme, photosystem II (PSII). Here we report an overall water splitting natural-artificial hybrid system, in which the plant PSII and inorganic photocatalysts (for example, Ru/SrTiO3:Rh), coupled with an inorganic electron shuttle [Fe(CN)(6)(3-)/Fe(CN)(6)(4-)], are integrated and dispersed in aqueous solutions. The activity of this hybrid photosystem reaches to around 2,489 mol H-2 (mol PSII)(-1) h(-1) under visible light irradiation, and solar overall water splitting is also achieved under solar irradiation outdoors. The optical imaging shows that the hybrid photosystems are constructed through the self-assembly of PSII adhered onto the inorganic photocatalyst surface. Our work may provide a prototype of natural-artificial hybrids for developing autonomous solar water splitting system.
关键词[WOS]: VISIBLE-LIGHT IRRADIATION ;  HYDROGEN-PRODUCTION ;  SINGLET OXYGEN ;  ELECTRON-TRANSFER ;  MECHANISM ;  SYSTEMS ;  PHOTOSYNTHESIS ;  NANOCRYSTALS ;  CHLOROPHYLL ;  MEMBRANES
语种: 英语
WOS记录号: WOS:000341057500001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143939
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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.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Wang, Wangyin,Chen, Jun,Li, Can,et al. Achieving solar overall water splitting with hybrid photosystems of photosystem II and artificial photocatalysts[J]. NATURE COMMUNICATIONS,2014,5(1):4647.
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