| Quaternary Ammonium Ionic Liquids as Bi-functional Catalysts for One-step Synthesis of Dimethyl Carbonate from Ethylene Oxide, Carbon Dioxide and Methanol | |
| Department | 绿色化学研究发展中心 |
Li J(李健); Wang LG(王利国); Shi F(石峰) ; Liu SM(刘士民); He YD(何昱德); Lu LJ(卢六斤); Ma XY(马祥元); Deng YQ(邓友全)
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| 2011 | |
| Source Publication | Catal. Lett.
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| ISSN | 1011-372X |
| Volume | 141Pages:339-346 |
| Abstract | One kind of novel ionic liquids (ILs) with a tertiary amino moiety and a quaternary ammonium group were synthesized and identified by FT-IR, 1H and 13C NMR. The elemental chemical state and basicity of ILs were determined by XPS and Hammett indicator method, respectively. Then the catalytic performance of these bifunctional catalysts was investigated in one-step synthesis of dimethyl carbonate (DMC) from ethylene oxide (EO), carbon dioxide and methanol. The best catalytic performance with 99% EO conversion and a maximum of 74% DMC selectivity was obtained using [N111,6N11]I as catalyst under optimized reaction conditions. And the catalyst could be reused for several times. Normally, stronger basicity could be obtained by altering the anions with different nucleophilicity in ILs and a better catalytic activity could be achieved correspondingly. A mechanism that both the ring opening of epoxide through nucleophilic attacks and the transesterification play an important role in the reaction was proposed based on experimental results. |
| Keyword | Ionic Liquid Bi-functional One-step Synthesis Dimethyl Carbonate Carbon Dioxide |
| Subject Area | 物理化学 |
| Funding Organization | the National Natural Science Foundation of China (20533080) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 绿色催化课题组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/2361 |
| Collection | 绿色化学研究发展中心 |
| Corresponding Author | Deng YQ(邓友全) |
| Recommended Citation GB/T 7714 | Li J,Wang LG,Shi F,et al. Quaternary Ammonium Ionic Liquids as Bi-functional Catalysts for One-step Synthesis of Dimethyl Carbonate from Ethylene Oxide, Carbon Dioxide and Methanol[J]. Catal. Lett.,2011,141:339-346. |
| APA | 李健.,王利国.,石峰.,刘士民.,何昱德.,...&邓友全.(2011).Quaternary Ammonium Ionic Liquids as Bi-functional Catalysts for One-step Synthesis of Dimethyl Carbonate from Ethylene Oxide, Carbon Dioxide and Methanol.Catal. Lett.,141,339-346. |
| MLA | 李健,et al."Quaternary Ammonium Ionic Liquids as Bi-functional Catalysts for One-step Synthesis of Dimethyl Carbonate from Ethylene Oxide, Carbon Dioxide and Methanol".Catal. Lett. 141(2011):339-346. |
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