| 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 | 0253-9837 |
| 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 O-2 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 +2H(+) + 2e(-) -> CO + H2O) catalyzed by a homogeneous hexanuclear ring cobalt complex {K-2[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 UV 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. (C) 2022, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved. |
| Keyword | Photosynthesis Homogeneous catalysis CO2 reduction reaction Density functional theory Hexanuclear ring cobalt complex |
| Publisher | ELSEVIER |
| DOI | 10.1016/S1872-2067(22)64144-5 |
| Indexed By | SCIE |
| Language | 英语 |
| WOS Research Area | Chemistry ; Engineering |
| WOS Subject | Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical |
| WOS ID | WOS:000842125000001 |
| Original Document Type | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/488655 |
| Collection | 化学化工学院 |
| Affiliation | 1.Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Key Lab Adv Catalysis Gansu Prov, Lanzhou 730000, Gansu, Peoples R China; 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Gansu, Peoples R China; 3.Georgia Gwinnett Coll, Sch Sci & Technol, 1000 Univ Ctr Lane, Lawrenceville, GA 30043 USA |
| First 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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