| Hexanuclear ring cobalt complex for photochemical CO2 to CO conversion | |
Meng, Xiangyu1; Li, Rui1; Yang, Junyi1; Xu, Shiming1; Zhang, Chenchen1; You, Kejia1; Ma, Baochun1; Guan, Hongxia3; Ding, Y(丁勇)1,2 | |
| 2022-09-01 | |
| Source Publication | Chinese Journal of Catalysis Impact Factor & Quartile |
| ISSN | 1872-2067 |
| Volume | 43Issue:9Pages:2414-2424 |
| Abstract | Photosynthesis in nature has been deemed as the most significant biochemical reaction, which maintains a relatively stable content of O2 and CO2 in the atmosphere. Herein, for a deeper comprehension of natural photosynthesis, an artificial photosynthesis model reaction of photochemical CO2 to CO conversion (CO2 +2 H+ + 2e− → CO + H2O) catalyzed by a homogeneous hexanuclear ring cobalt complex {K2[CoO3PCH2N(CH2CO2)2]}6 (Co6 complex) is developed. Using the [Ru(bpy)3]2+ as a photosensitizer and TEOA as a sacrificial electron donor, an optimal turnover frequency of 503.3 h−1 and an apparent quantum efficiency of 0.81% are obtained. The good photocatalytic CO2 reduction performance is attributed to the efficient electron transfer between Co6 complex and [Ru(bpy)3]2+, which boosts the photogenerated carriers separation of the photosensitizer. It is confirmed by the j-V curves, light-assisted UV-vis curves, steady-state photoluminescence spectra and real-time laser flash photolysis experiments. In addition, the proposed catalytic mechanism for CO2 reduction reaction catalyzed by the Co6 complex is explored by the potassium thiocyanate poison experiment, Pourbaix diagram and density functional theory calculations. © 2022 Dalian Institute of Chemical Physics, the Chinese Academy of Sciences |
| Keyword | Artificial photosynthesis Carbon dioxide Catalysis Cobalt compounds Photoluminescence Photolysis Photosensitizers Ruthenium compounds CO 2 reduction CO conversion CO2 reduction reaction Cobalt complexes Cobalt complexes (III) Density-functional-theory Hexanuclear ring cobalt complex Homogeneous catalysis Photochemicals Reduction reaction |
| Publisher | Science Press |
| DOI | 10.1016/S1872-2067(22)64144-5 |
| Indexed By | EI |
| Language | 英语 |
| EI Accession Number | 20223212535362 |
| EI Keywords | Density functional theory |
| EI Classification Number | 657.1 Solar Energy and Phenomena ; 741.1 Light/Optics ; 802.2 Chemical Reactions ; 804.2 Inorganic Compounds ; 922.1 Probability Theory ; 931.3 Atomic and Molecular Physics ; 931.4 Quantum Theory ; Quantum Mechanics |
| Original Document Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/486885 |
| Collection | 化学化工学院 |
| Corresponding Author | Ding, Yong |
| Affiliation | 1.State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Gansu, Lanzhou; 730000, China; 2.State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Gansu, Lanzhou; 730000, China; 3.School of Science and Technology, Georgia Gwinnett College, 1000 University Center Lane, Lawrenceville; GA; 30043, United States |
| First Author Affilication | College of Chemistry and Chemical Engineering |
| Corresponding Author Affilication | College of Chemistry and Chemical Engineering |
| Recommended Citation GB/T 7714 | Meng, Xiangyu,Li, Rui,Yang, Junyi,et al. Hexanuclear ring cobalt complex for photochemical CO2 to CO conversion[J]. Chinese Journal of Catalysis,2022,43(9):2414-2424. |
| APA | Meng, Xiangyu.,Li, Rui.,Yang, Junyi.,Xu, Shiming.,Zhang, Chenchen.,...&Ding, Yong.(2022).Hexanuclear ring cobalt complex for photochemical CO2 to CO conversion.Chinese Journal of Catalysis,43(9),2414-2424. |
| MLA | Meng, Xiangyu,et al."Hexanuclear ring cobalt complex for photochemical CO2 to CO conversion".Chinese Journal of Catalysis 43.9(2022):2414-2424. |
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