气候变化领域集成服务门户(CCPortal): A photosystem i monolayer with anisotropic electron flow enables Z-scheme like photosynthetic water splitting

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DOI	10.1039/c9ee01901d
	A photosystem i monolayer with anisotropic electron flow enables Z-scheme like photosynthetic water splitting
	Zhao F.; Wang P.; Ruff A.; Hartmann V.; Zacarias S.; Pereira I.A.C.; Nowaczyk M.M.; Rögner M.; Conzuelo F.; Schuhmann W.
发表日期	2019
ISSN	17545692
起始页码	3133
结束页码	3143
卷号	12 期号:10
英文摘要	Photosynthetic protein complexes are attractive building blocks for the fabrication of semi-artificial energy conversion devices. However, limitations in the efficiency of the implemented biophotovoltaic systems prevent their use in practical applications. In particular, the effective minimization of recombination processes in photosystem I (PSI) modified bioelectrodes is crucial for enabling a unidirectional electron flow allowing the true potential of the large charge separation at PSI being exploited. Here, we present controlled immobilization of PSI monolayers with a predefined preferential orientation that translates into anisotropic electron flow upon irradiation. Further interface of the oriented PSI monolayer with redox polymers allows an efficient electron transfer and minimization of possible short-circuiting pathways. To complete the functional biophotocathode, the PSI monolayer is coupled to a hydrogenase (H2ase) to realize light-induced H2 evolution. The PSI/H2ase biocathode is then combined with a redox polymer/photosystem II-based bioanode demonstrating a fully light-driven Z-scheme mimic biophotovoltaic cell for bias-free water splitting. © 2019 The Royal Society of Chemistry.
英文关键词	Anisotropy; Artificial photosynthesis; Electrons; Energy conversion; Polymers; Artificial energy; Building blockes; Charge separations; Electron transfer; Photosynthetic proteins; Preferential orientation; Recombination process; Short circuiting; Monolayers; electron; equipment; fuel cell; immobilization; photovoltaic system; protein; separation
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189796
作者单位	Analytical Chemistry-Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, Bochum, D-44780, Germany; Plant Biochemistry, Faculty of Biology and Biotechnology, Ruhr University Bochum, Universitätsstr. 150, Bochum, D-44780, Germany; Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, 2780-157, Portugal
推荐引用方式 GB/T 7714	Zhao F.,Wang P.,Ruff A.,et al. A photosystem i monolayer with anisotropic electron flow enables Z-scheme like photosynthetic water splitting[J],2019,12(10).
APA	Zhao F..,Wang P..,Ruff A..,Hartmann V..,Zacarias S..,...&Schuhmann W..(2019).A photosystem i monolayer with anisotropic electron flow enables Z-scheme like photosynthetic water splitting.Energy & Environmental Science,12(10).
MLA	Zhao F.,et al."A photosystem i monolayer with anisotropic electron flow enables Z-scheme like photosynthetic water splitting".Energy & Environmental Science 12.10(2019).