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Exceptional Poly(acrylic acid)-Based Artificial [FeFe]-Hydrogenases for Photocatalytic H2 Production in Water

Authors

  • Feng Wang,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, the Chinese Academy of Sciences, Beijing 100190 (P.R. China)
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  • Wen-Jing Liang,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, the Chinese Academy of Sciences, Beijing 100190 (P.R. China)
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  • Jing-Xin Jian,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, the Chinese Academy of Sciences, Beijing 100190 (P.R. China)
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  • Cheng-Bo Li,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, the Chinese Academy of Sciences, Beijing 100190 (P.R. China)
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  • Dr. Bin Chen,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, the Chinese Academy of Sciences, Beijing 100190 (P.R. China)
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  • Prof. Dr. Chen-Ho Tung,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, the Chinese Academy of Sciences, Beijing 100190 (P.R. China)
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  • Prof. Dr. Li-Zhu Wu

    Corresponding author
    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, the Chinese Academy of Sciences, Beijing 100190 (P.R. China)
    • Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, the Chinese Academy of Sciences, Beijing 100190 (P.R. China)
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  • We are grateful for financial support from the Ministry of Science and Technology of China (2009CB220008, 2013CB834505 and 2013CB834804), the National Science Foundation of China (21090343, 50973125 and 91027041), and the Knowledge Innovation Program of the Chinese Academy of Sciences.

Abstract

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Light, polymer, action: A set of water-soluble poly(acrylic acid) catalysts PAA-g-Fe2S2 containing {Fe2S2}, an [FeFe]-hydrogenase active-site mimic, is synthesized. This system, combined with CdSe quantum dots and ascorbic acid, has an exceptional turnover number and initial turnover frequency (27 135 and 3.6 s−1) for the photocatalytic production of H2 in water, which is the highest efficiency to date for [FeFe]-hydrogenase mimics.

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