A comparison study on the properties of 1,3-dialkylimidazolium tetrafluoroborate salts prepared by halogen-free and traditional method | |
Department | OSSO国家重点实验室 |
Wang RF(王瑞峰)1,2,3; Qi XJ(亓秀娟)1; Liu SM(刘士民)1; He YD(何昱德)1; Deng YQ(邓友全)1; Deng YQ(邓友全) | |
The second department | 固体润滑国家重点实验室 |
2016 | |
Source Publication | Journal of Molecular Liquids |
ISSN | 0167-7322 |
Volume | 221Pages:339-345 |
Abstract | A series of 1,3-dialkylimidazolium tetrafluoroborate salts had been prepared via one-step alkylation of N-alkylimidazole with trialkyloxonium salts and traditional two-step method, respectively. The possible impurities in these ionic liquids (ILs) such as Cl−, Br−, Na+ and alkyl imidazoles were measured. Detailed characterizations of two approaches in the ILs properties and performances such as spectroscopic properties, phase behavior, viscosity, refractive index, and electrochemical properties were systemically conducted. The obtained results showed that the variety of synthesized methods resulted in the distinct changes in physicochemical properties for the same IL. Therein, the comparison of spectroscopic properties and phase behaviors for the employed ILs were emphasized. Furthermore, in most cases, the ILs prepared by traditional two-step possessed the higher viscosity, lower refractive index as well as lower ionic conductivity than that of ILs prepared by one-step. It was worth noting that the 1-decyl-3-ethylimidazolium tetrafluoroborate ([DEIm]BF4) prepared with the traditional and trialkyloxonium methods respectively exhibited distinctly different phase and fluorescence behaviors. The reason might be attributed to the significant improvement on the purities of ILs by the one-step strategy. |
Keyword | Ionic Liquid Comparison Property Synthetic Method Impurities |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1016/j.molliq.2016.05.092 |
Funding Organization | the National Natural Science Foundation of China for the financial support (No. 21305146;21403259) |
Indexed By | SCI |
If | 3.648 |
Language | 英语 |
Funding Project | 绿色催化课题组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20472 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) 固体润滑国家重点实验室(LSL) |
Corresponding Author | Deng YQ(邓友全) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Ctr Green Chem & Catalysis, 18 Tianshui Middle Rd, Lanzhou, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Publ Secur Bur Ordos, Ordos 017000, Inner Mongolia, Peoples R China |
Recommended Citation GB/T 7714 | Wang RF,Qi XJ,Liu SM,et al. A comparison study on the properties of 1,3-dialkylimidazolium tetrafluoroborate salts prepared by halogen-free and traditional method[J]. Journal of Molecular Liquids,2016,221:339-345. |
APA | Wang RF,Qi XJ,Liu SM,He YD,Deng YQ,&邓友全.(2016).A comparison study on the properties of 1,3-dialkylimidazolium tetrafluoroborate salts prepared by halogen-free and traditional method.Journal of Molecular Liquids,221,339-345. |
MLA | Wang RF,et al."A comparison study on the properties of 1,3-dialkylimidazolium tetrafluoroborate salts prepared by halogen-free and traditional method".Journal of Molecular Liquids 221(2016):339-345. |
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