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| DOI | 10.1016/j.mcat.2023.113812 |
| Highly efficient DES-based catalytic systems for carbon dioxide utilization via cycloaddition with epoxide substrates | |
| 发表日期 | 2024 |
| ISSN | 2468-8231 |
| 起始页码 | 554 |
| 卷号 | 554 |
| 英文摘要 | The accumulation of greenhouse gases (GHG) in the atmosphere, with carbon dioxide being the most significant contributor, is a major environmental problem as it impacts significantly on climate change. The development of new catalysts and chemical reactions that incorporate CO2 are needed to reduce its further emission significantly. Deep eutectic solvents (DES) have garnered increasing attention as environmentally friendly catalysts in the cycloaddition of carbon dioxide (CO2) with epoxide substrates to produce cyclic carbonates. Their appeal stems from their facile synthesis, cost-effectiveness, low vapour pressure, and thermal stability. In this study, we present a convenient solvent-free synthesis method for nine deep eutectic solvents (DES), utilizing varying compositions of quaternary amine salts (N,N,N-triethyldodecan-1-aminium hydroxide, [TEA-12][OH]) and quinaldic acid [Q-COOH]. These deep eutectic solvents were thoroughly characterized using several techniques, including FTIR, NMR, DSC, and TGA. Moreover, their efficacy for the solvent-free fixation of CO2 to cyclic carbonates were evaluated. Among the tested compositions, [TEA-12]:[Q-COOH] (0.9:0.1) exhibited the lowest melting point (100.17 degrees C) and highest catalytic activity, showcasing an optimized Turn-Over Frequency (TOF) of 1466 h(-1). This remarkable result represents a significant advancement in the application of DES for CO2 fixation, exceeding the previous highest catalytic activity observed with TBAB:Citric acid (2.5:1) by more than tenfold. |
| 英文关键词 | Deep eutectic solvents (DES); Quaternary ammonium salts; CO2 fixation; Cyclic carbonates |
| 语种 | 英语 |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| WOS记录号 | WOS:001164535600001 |
| 来源期刊 | MOLECULAR CATALYSIS
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/297984 |
| 作者单位 | University of the Free State; University of the Free State |
| 推荐引用方式 GB/T 7714 | . Highly efficient DES-based catalytic systems for carbon dioxide utilization via cycloaddition with epoxide substrates[J],2024,554. |
| APA | (2024).Highly efficient DES-based catalytic systems for carbon dioxide utilization via cycloaddition with epoxide substrates.MOLECULAR CATALYSIS,554. |
| MLA | "Highly efficient DES-based catalytic systems for carbon dioxide utilization via cycloaddition with epoxide substrates".MOLECULAR CATALYSIS 554(2024). |
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