Quaternary Ammonium Ionic Liquids as Bi-functional Catalysts for One-step Synthesis of Dimethyl Carbonate from Ethylene Oxide, Carbon Dioxide and Methanol

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	Quaternary Ammonium Ionic Liquids as Bi-functional Catalysts for One-step Synthesis of Dimethyl Carbonate from Ethylene Oxide, Carbon Dioxide and Methanol
	Lu LJ(卢六斤); Ma XY(马祥元); Shi F(石峰); Deng YQ(邓友全); Deng YQ(邓友全); Liu SM(刘士民); He YD(何昱德)
刊名	Catal. Lett.
	2011
卷号	141 页码:339-346
关键词	Ionic liquid Bi-functional One-step synthesis Dimethyl carbonate Carbon dioxide
ISSN号	1011-372X
通讯作者	邓友全
中文摘要	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.
学科主题	物理化学
收录类别	SCI
资助信息	the National Natural Science Foundation of China (20533080)
语种	英语
WOS记录号	WOS:000287506500017
公开日期	2012-12-04
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/2361]
专题	兰州化学物理研究所_绿色化学研究发展中心
通讯作者	Deng YQ(邓友全); Deng YQ(邓友全)
推荐引用方式 GB/T 7714	Lu LJ,Ma XY,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	卢六斤.,马祥元.,石峰.,邓友全.,邓友全.,...&何昱德.(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	卢六斤,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.