SO2-Induced Variations in the Viscosity of Ionic Liquids Investigated by in Situ Fourier Transform Infrared Spectroscopy and Simulation Calculations
文献类型：期刊论文
| 作者 | Zeng, Shaojuan1,2,3; Zhang, Xiaochun1,2; Gao, Hongshuai1,2; He, Hongyan1,2; Zhang, Xiangping1,2; Zhang, Suojiang1,2 |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2015-11-04 |
| 卷号 | 54期号:43页码:10854-10862 |
| ISSN号 | 0888-5885 |
| 英文摘要 | In this work, the effect of SO2 on the densities and viscosities during absorption processes of pyridinium-based ionic liquids (ILs), such as the conventional ILs [C4Py][BF4] and [C4Py] [SCN] and the tertiary amino-functionalized IL [NEt2C2Py] [SCN], was investigated. The mechanism of the variations in these two physical properties was also explained in detail through a combination of experimental methods and simulation calculations. The results indicated that the densities of the conventional and functionalized ILs increased gradually with increasing amounts of SO2. However, the viscosities of two kinds of ILs during SO2 absorption showed different variation trends according to different mechanisms of SO2 absorption, i.e., physical absorption and chemical absorption, which was proven by the in situ Fourier transform infrared results. The viscosity changes of the functionalized IL [NEt2C2Py][SCN] during SO2 absorption experienced two stages. First, the viscosity increased sharply because of chemical interaction, forming a charge-transfer complex, and then decreased drastically because of the physical interaction between the anion and SO2. However, there was a monotonous and sharp decline in the viscosity of the conventional ILs with an increase of the SO2 capacity, which showed the same trend as that of [NEt2C2Py] [SCN] in the SO2 physical absorption stage. Furthermore, the ionic interaction and microstructures of the conventional ILs before and after SO2 absorption were further studied by molecular dynamics simulation and quantum-chemical calculation. It was demonstrated that viscosity reduction may mainly originate from a decrease of the electrostatic interaction between the cation and anion of the ILs because of the presence of SO2. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | CO2 CAPTURE ; SO2 CAPTURE ; TRANSPORT-PROPERTIES ; MOLECULAR-DYNAMICS ; REVERSIBLE CAPTURE ; HIGHLY EFFICIENT ; FORCE-FIELD ; ABSORPTION ; IMIDAZOLIUM ; PYRIDINIUM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000364356200032 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/19832]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Shaojuan,Zhang, Xiaochun,Gao, Hongshuai,et al. SO2-Induced Variations in the Viscosity of Ionic Liquids Investigated by in Situ Fourier Transform Infrared Spectroscopy and Simulation Calculations[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2015,54(43):10854-10862. |
| APA | Zeng, Shaojuan,Zhang, Xiaochun,Gao, Hongshuai,He, Hongyan,Zhang, Xiangping,&Zhang, Suojiang.(2015).SO2-Induced Variations in the Viscosity of Ionic Liquids Investigated by in Situ Fourier Transform Infrared Spectroscopy and Simulation Calculations.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,54(43),10854-10862. |
| MLA | Zeng, Shaojuan,et al."SO2-Induced Variations in the Viscosity of Ionic Liquids Investigated by in Situ Fourier Transform Infrared Spectroscopy and Simulation Calculations".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 54.43(2015):10854-10862. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
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。