The efficient synthesis of diethyl carbonate via coupling reaction from propylene oxide, CO2 and ethanol over binary PVEImBr/MgO catalyst
文献类型：期刊论文
| 作者 | Wang, Liguo1; Ammar, Muhammad1,2; He, Peng1; Li, Yuqian1; Cao, Yan1; Li, Fengjiao1,2; Han, Xiao1; Li, Huiquan1,3 |
| 刊名 | CATALYSIS TODAY
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 281页码:360-370 |
| ISSN号 | 0920-5861 |
| 关键词 | Carbon dioxide Diethyl carbonate Coupling reaction Binary Mechanism |
| 英文摘要 | Direct synthesis of diethyl carbonate (DEC) from propylene oxide, CO2 and ethanol via coupling reaction over a heterogeneous catalyst was demonstrated. In this work, a cross linked poly(ionic liquid) containing poly(1-vinyl-3-ethylimidazolium bromide)(PVEImBr) moiety was prepared via a free radical polymerization. Meanwhile, the MgO nanoplatelet with abundant basic sites was prepared, which was combined with PVEImBr to form a composite catalyst of PVEImBr/MgO center dot N-2 physisorption, TG, XRD, SEM, CO2-TPD and FT-IR were conducted to thoroughly characterize the structure and texture of the catalysts. The as prepared heterogeneous catalyst, which simultaneously possessed the dual function of nucleophilicity and basicity, was used in the coupling reaction of propylene oxide, CO2 and ethanol to synthesize diethyl carbonate and propylene glycol. The composite catalyst could promote the reaction with high efficiency, and a good catalytic performance of 54.4% diethyl carbonate yield and 59.8% propylene glycol yield could be achieved. The H-1 NMR and DFT calculation disclosed that greatly faster reaction rate was ascribed to the synergistic effect between the Br circle dot anion of PVEImBr and hydroxyl group of ethanol. Accordingly, a mechanism of the sequential reaction consisting of cycloaddition and transesterification steps was proposed. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Engineering |
| 关键词[WOS] | FUNCTIONALIZED IONIC LIQUID ; DIMETHYL CARBONATE ; CYCLIC CARBONATES ; POLYATOMIC-MOLECULES ; POLYETHYLENE-GLYCOL ; NANOCRYSTALLINE MGO ; ASSISTED SYNTHESIS ; TRANSITION-STATES ; MAGNESIUM-OXIDE ; AL HYDROTALCITE |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000390623300016 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/21857]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Proc & Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Liguo,Ammar, Muhammad,He, Peng,et al. The efficient synthesis of diethyl carbonate via coupling reaction from propylene oxide, CO2 and ethanol over binary PVEImBr/MgO catalyst[J]. CATALYSIS TODAY,2017,281:360-370. |
| APA | Wang, Liguo.,Ammar, Muhammad.,He, Peng.,Li, Yuqian.,Cao, Yan.,...&Li, Huiquan.(2017).The efficient synthesis of diethyl carbonate via coupling reaction from propylene oxide, CO2 and ethanol over binary PVEImBr/MgO catalyst.CATALYSIS TODAY,281,360-370. |
| MLA | Wang, Liguo,et al."The efficient synthesis of diethyl carbonate via coupling reaction from propylene oxide, CO2 and ethanol over binary PVEImBr/MgO catalyst".CATALYSIS TODAY 281(2017):360-370. |
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来源：过程工程研究所
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