The efficient synthesis of diethyl carbonate via coupling reaction from propylene oxide, CO2 and ethanol over binary PVEImBr/MgO catalyst
Wang, Liguo1; Ammar, Muhammad1,2; He, Peng1; Li, Yuqian1; Cao, Yan1; Li, Fengjiao1,2; Han, Xiao1; Li, Huiquan1,3
2017-03-01
发表期刊CATALYSIS TODAY
ISSN0920-5861
卷号281页码:360-370
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.
关键词Carbon Dioxide Diethyl Carbonate Coupling Reaction Binary Mechanism
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.cattod.2016.02.052
收录类别SCI ; ISTP
语种英语
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
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS记录号WOS:000390623300016
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21857
专题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.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wang, Liguo]的文章
[Ammar, Muhammad]的文章
[He, Peng]的文章
百度学术
百度学术中相似的文章
[Wang, Liguo]的文章
[Ammar, Muhammad]的文章
[He, Peng]的文章
必应学术
必应学术中相似的文章
[Wang, Liguo]的文章
[Ammar, Muhammad]的文章
[He, Peng]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。