Efficient Light-Driven Carbon-Free Cobalt-Based Molecular Catalyst for Water Oxidation
作者： Zhuangqun Huang , Zhen Luo , Yurii V Geletii , James W Vickers , Qiushi Yin
DOI: 10.1021/JA109681D
关键词: Cobalt 、 Photochemistry 、 Catalytic oxidation 、 Chemistry 、 Inorganic chemistry 、 Turnover number 、 Catalysis 、 Carbon 、 Electron acceptor 、 Polyoxometalate 、 Photocatalysis
摘要: The abundant-metal-based polyoxometalate complex [Co4(H2O)2(PW9O34)2]10− is a hydrolytically and oxidatively stable, homogeneous, efficient molecular catalyst for the visible-light-driven catalytic oxidation of water. Using sacrificial electron acceptor photosensitizer, it exhibits high (30%) photon-to-O2 yield large turnover number (>220, limited solely by depletion acceptor) at pH 8. photocatalytic performance this superior to that previously reported precious-metal-based water [{Ru4O4(OH)2(H2O)4}(γ-SiW10O36)2]10−.
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