Cocatalyst-Free Hybrid Ionic Liquid (IL)-Based Porous Materials for Efficient Synthesis of Cyclic Carbonates through a Cooperative Activation Pathway

doi:10.1002/asia.201601676

	Cocatalyst-Free Hybrid Ionic Liquid (IL)-Based Porous Materials for Efficient Synthesis of Cyclic Carbonates through a Cooperative Activation Pathway
	Zhao, Yaopeng 1; Yang, Qihua 1; Jayakumar, Sanjeevi 1,2; Li, He 1; Chen, Jian 1,3
刊名	CHEMISTRY-AN ASIAN JOURNAL
	2017-03-02
卷号	12 期号:5 页码:577-585
关键词	Carbon Cooperative Phenomena Cycloaddition Ionic Liquids Polymers
ISSN号	1861-4728
DOI	10.1002/asia.201601676
文献子类	Article
英文摘要	Cocatalyst-free ionic liquid (IL)-based porous polymers (P-x-V-y-OHzR) functionalized with an intermolecular hydroxyl group were prepared by means of radical copolymerization of 1-butyl-3-vinylimidazolium bromide, (4-vinylphenyl) methanol (VBzOH), and divinylbenzene (DVB) under solvothermal conditions. As the ratio of 4-vinylphenylmethanol in the initial mixture increased, the content of the hydroxyl groups in the polymer increased from 3.35 to 5.35 mmol g(-1) and the Brunauer-Emmett-Teller (BET) surface area of the polymer decreased sharply from 365 to 2.5 m(2) g(-1). In the carbonation of CO2 and epoxides, the turnover frequency (TOF) of P-x-V-y-OHzR increased gradually from 25 to 67 h(-1) as the OH ratio increased irrespective of the sharp decrease in BET surface area, which suggests the existence of a cooperative activation effect between OH and ILs. To obtain a high OH content while still maintaining a high BET surface area, hybrid porous materials (SBA-[VxOHy] R-n) were prepared by means of copolymerization of 1-ethyl-3-vinylimidazolium bromide and 4-vinylphenylmethanol in the mesopores of SBA-15. SBA-[VxOHy] R-n was more active than its polymer counterpart (TOF: 188 versus 71 h(-1)) in the cycloaddition of CO2 with propyl oxide owing to the combined effect of the high BET surface area and the high OH content. The hybridization of mesoporous materials with polymers represents an efficient strategy for the preparation of high-performance solid catalysts for chemical transformations.
WOS关键词	CO2 CYCLOADDITION REACTIONS ; ACID-BASE CATALYSTS ; ORGANIC CARBONATES ; HETEROGENEOUS CATALYSTS ; CHEMICAL FIXATION ; DIOXIDE FIXATION ; HIGHLY EFFICIENT ; EPOXIDES ; POLYMER ; CONVERSION
WOS研究方向	Chemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000398188200012
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169354]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Yang, Qihua
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, iChEM, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Int Coll, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Yaopeng,Yang, Qihua,Jayakumar, Sanjeevi,et al. Cocatalyst-Free Hybrid Ionic Liquid (IL)-Based Porous Materials for Efficient Synthesis of Cyclic Carbonates through a Cooperative Activation Pathway[J]. CHEMISTRY-AN ASIAN JOURNAL,2017,12(5):577-585.
APA	Zhao, Yaopeng,Yang, Qihua,Jayakumar, Sanjeevi,Li, He,&Chen, Jian.(2017).Cocatalyst-Free Hybrid Ionic Liquid (IL)-Based Porous Materials for Efficient Synthesis of Cyclic Carbonates through a Cooperative Activation Pathway.CHEMISTRY-AN ASIAN JOURNAL,12(5),577-585.
MLA	Zhao, Yaopeng,et al."Cocatalyst-Free Hybrid Ionic Liquid (IL)-Based Porous Materials for Efficient Synthesis of Cyclic Carbonates through a Cooperative Activation Pathway".CHEMISTRY-AN ASIAN JOURNAL 12.5(2017):577-585.