Functional Polypyridine Co Complex as an Efficient Catalyst for Photo‐Induced Water Oxidation |
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| Authors: | Hongyan Wang Zhijuan Xin Ruijuan Xiang Si Liu Xuewang Gao Chengbo Li |
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| Institution: | 1. Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, China;2. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;3. College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi 710127, China |
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| Abstract: | A novel mononuclear cobalt complex 1 was synthesized by treatment of CoCl2·6H2O with a COOMe functionalized TPA ligand (TPA=tris(2‐pyridylmethyl)amine). In a basic borate buffer, 1 acts as an efficient catalyst for water oxidation, which is confirmed by an extinct catalytic oxidant wave in electrochemistry. Visible light‐driven water oxidation has been achieved by 1 with a TON of 127.7 and a TOF of 3.8 s?1 respectively in a homogeneous system. In comparison to the reference RC with naked TPA, the higher efficiency of 1 evidences COOMe on ligand can improve the catalytic efficiency, leading to an effective pathway towards construction of a robust and stable artificial photosynthesis system. |
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| Keywords: | cobalt complex photo‐induced ligand‐design water oxidation |
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