Spatially Separated Photosystem II and a Silicon Photoelectrochemical Cell for Overall Water Splitting: A Natural–Artificial Photosynthetic Hybrid |
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| Authors: | Dr. Wangyin Wang Hong Wang Qingjun Zhu Dr. Wei Qin Dr. Guangye Han Prof. Dr. Jian‐Ren Shen Prof. Dr. Xu Zong Prof. Dr. Can Li |
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| Affiliation: | 1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian, China;2. University of Chinese Academy of Sciences, Beijing, China;3. Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China;4. Photosynthesis Research Center, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, Japan |
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| Abstract: | Integrating natural and artificial photosynthetic platforms is an important approach to developing solar‐driven hybrid systems with exceptional function over the individual components. A natural–artificial photosynthetic hybrid platform is formed by wiring photosystem II (PSII) and a platinum‐decorated silicon photoelectrochemical (PEC) cell in a tandem manner based on a photocatalytic‐PEC Z‐scheme design. Although the individual components cannot achieve overall water splitting, the hybrid platform demonstrated the capability of unassisted solar‐driven overall water splitting. Moreover, H2 and O2 evolution can be separated in this system, which is ascribed to the functionality afforded by the unconventional Z‐scheme design. Furthermore, the tandem configuration and the spatial separation between PSII and artificial components provide more opportunities to develop efficient natural–artificial hybrid photosynthesis systems. |
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| Keywords: | photocatalysis photoelectrochemistry photosystem II water splitting Z-scheme |
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