Efficient Electrochemical Reduction of CO2 to CO in Ionic Liquids
文献类型：期刊论文
| 作者 | Hu, Yanjie1,2; Feng, Jiaqi1; Zhang, Xiangping1; Gao, Hongshuai1; Jin, Saimeng3; Liu, Lei1; Shen, Weifeng3,4 |
| 刊名 | CHEMISTRYSELECT
 |
| 出版日期 | 2021-10-06 |
| 卷号 | 6期号:37页码:9873-9879 |
| 关键词 | Ionic liquid CO2 reduction Electrolysis Carbon monoxide Density functional theory |
| ISSN号 | 2365-6549 |
| DOI | 10.1002/slct.202102825 |
| 英文摘要 | Electrochemical reduction of carbon dioxide (CO2) to CO is a promising strategy. However, achieving high Faradaic efficiency with high current density using ionic liquid (IL) electrolyte remains a challenge. In this study, the new IL N-octyltrimethyl ammonium 1,2,4-triazole ([N-1118][TRIZ]) shows outstanding performance for electrochemical reduction of CO2 to CO on the commercial Ag electrode, and the current density can be up to 50.8 mAcm(-2) with a Faradaic efficiency of 90.6 %. The current density of CO is much higher than those reported in the IL electrolyte. In addition, the density functional theory (DFT) calculation further proved that [N-1118][TRIZ] interact with CO2 to form [N-1118](+)[TRIZ-CO2](-) complex which played a key role in reducing the activation energy of CO2. The formation of [N-1118](+)[TRIZ-CO2](-) complex was verified by Fourier Transform Infrared (FTIR) spectroscopy. According to the molecular orbital theory, the electrons obtained from IL was filled in the anti-bonding orbit (pi*) of the CO2, resulting in reducing the C=O bond energy. This work provides a new strategy to design novel ILs for high efficiency electrochemical reduction of CO2 to CO. |
| WOS关键词 | ELECTROCATALYTIC REDUCTION ; CARBON-DIOXIDE ; CONVERSION ; ELECTRODE ; CAPTURE |
| 资助项目 | program of Beijing Municipal Natural Science Foundation[2182072] ; program of Beijing Municipal Natural Science Foundation[2182071] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000704246900018 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | program of Beijing Municipal Natural Science Foundation |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/50269]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Liu, Lei; Shen, Weifeng |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Green Proc & Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc,Inst Proc, Beijing 100190, Peoples R China 2.Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Peoples R China 3.Chongqing Univ, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China 4.Chongqing Key Lab Theoret & Computat Chem, Chongqing 400044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Yanjie,Feng, Jiaqi,Zhang, Xiangping,et al. Efficient Electrochemical Reduction of CO2 to CO in Ionic Liquids[J]. CHEMISTRYSELECT,2021,6(37):9873-9879. |
| APA | Hu, Yanjie.,Feng, Jiaqi.,Zhang, Xiangping.,Gao, Hongshuai.,Jin, Saimeng.,...&Shen, Weifeng.(2021).Efficient Electrochemical Reduction of CO2 to CO in Ionic Liquids.CHEMISTRYSELECT,6(37),9873-9879. |
| MLA | Hu, Yanjie,et al."Efficient Electrochemical Reduction of CO2 to CO in Ionic Liquids".CHEMISTRYSELECT 6.37(2021):9873-9879. |
入库方式： OAI收割
来源：过程工程研究所
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