Towards understanding the effect of electrostatic interactions on the density of ionic liquids
文献类型:期刊论文
作者 | Wang, Junfeng1,2; Li, Chunxi1; Shen, Chong1; Wang, Zihao1 |
刊名 | FLUID PHASE EQUILIBRIA
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出版日期 | 2009-05-15 |
卷号 | 279期号:2页码:87-91 |
关键词 | Equation of state Ionic liquid Thermodynamic properties Prediction |
ISSN号 | 0378-3812 |
通讯作者 | Li, CX |
英文摘要 | In order to have a better understanding on the electrostatic contribution to the thermodynamic property of ionic liquids (ILs), a two-parameter equation of state (EOS) is developed on the basis of hard sphere perturbation theory by accounting for the dispersion interaction with Cotterman et al.'s ECS for L-J fluid and electrostatic interaction with mean spherical approximation (MSA) approach. The EOS is applicable for the density correlation Of Molecular liquids, and the resulting parameters, viz. Lennard-Jones dispersive parameter epsilon/k and soft-core diameter sigma, can be used to predict the density of molecular mixtures and the corresponding ILs. The results indicate that the density of IL is always about 10% higher than the corresponding stoichionietric molecular mixture with which the IL is produced as an ionic adduct, for example, IL 1-methyl-3-methylimidazolium dimethylphosphate ([MMIM][DMP]) versus equimolar mixture of 1-methylimidazole (MIM) and trimethylphosphate (TMP). Furthermore, the density enhancement of ILs with respect to their corresponding stoichiometric molecular mixtures can be well represented by the electrostatic contribution among ionic species involved. (C) 2009 Elsevier B.V. All rights reserved. |
WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
类目[WOS] | Thermodynamics ; Chemistry, Physical ; Engineering, Chemical |
研究领域[WOS] | Thermodynamics ; Chemistry ; Engineering |
关键词[WOS] | PERTURBATION METHOD ; TEMPERATURE |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000266274500002 |
公开日期 | 2013-12-09 |
版本 | 出版稿 |
源URL | [http://ir.ipe.ac.cn/handle/122111/6667] ![]() |
专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
作者单位 | 1.Beijing Inst Chem Technol, State Key Lab Chem Resource Eng, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Junfeng,Li, Chunxi,Shen, Chong,et al. Towards understanding the effect of electrostatic interactions on the density of ionic liquids[J]. FLUID PHASE EQUILIBRIA,2009,279(2):87-91. |
APA | Wang, Junfeng,Li, Chunxi,Shen, Chong,&Wang, Zihao.(2009).Towards understanding the effect of electrostatic interactions on the density of ionic liquids.FLUID PHASE EQUILIBRIA,279(2),87-91. |
MLA | Wang, Junfeng,et al."Towards understanding the effect of electrostatic interactions on the density of ionic liquids".FLUID PHASE EQUILIBRIA 279.2(2009):87-91. |
入库方式: OAI收割
来源:过程工程研究所
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