Physical Properties of Selected Ionic Liquids for Use as Electrolytes and Other Industrial Applications
Physical Properties of Selected Ionic Liquids for Use as Electrolytes and Other Industrial Applications
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DOI：
10.1021/je900405j
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发表时间：
2010-02
影响因子：
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通讯作者：
S. Fletcher;F. Sillars;N. Hudson;P. Hall
中科院分区：
文献类型：
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作者：
S. Fletcher;F. Sillars;N. Hudson;P. Hall
使用差示扫描量热法、du Nouy 张力测定法和流变测定法测量了选定的室温离子液体 (RTIL) 的物理性质，主要是为了确定它们是否适合用于电化学双层电容器。然而，RTIL 还有其他用途，例如液液萃取、催化和传热，这些测量也可能对其他领域的研究人员有用。使用的离子液体为1-乙基-3-甲基咪唑鎓二氰胺[emim][N(CN)2]、1,2-二甲基-3-丙基咪唑鎓双(三氟甲基磺酰基)亚胺[dmpim][Tf2N]和1-丁基-1-甲基吡咯烷鎓三(五氟乙基)三氟磷酸盐[bmpyr][Pf3PF3]。报告了玻璃化转变温度、结晶和熔化温度、表面张力和粘度。当冷却至 123.15 K 并重新加热至 403.15 K 时，三种离子液体表现出一系列结晶行为。所有液体在 (10 至 1000) s−1 的剪切速率范围内均为牛顿液体。粘胶...
The physical properties of selected room temperature ionic liquids (RTILs) were measured using differential scanning calorimetry, du Nouy tensiometry, and rheometry primarily to determine their suitability for use in electrochemical double layer capacitors. RTILs have other uses, however, such as liquid−liquid extraction, catalysis, and heat transfer, and these measurements may also be of use to researchers working in other fields. The ionic liquids used were 1-ethyl-3-methylimidazolium dicyanamide [emim][N(CN)2], 1,2-dimethyl-3-propylimidazolium bis(trifluoromethylsulfonyl)imide [dmpim][Tf2N], and 1-butyl-1-methylpyrrolidinium tris(pentafluoroethyl)trifluorophosphate [bmpyr][Pf3PF3]. Glass transition temperatures, crystallization and melting temperatures, surface tensions, and viscosities are reported. The three ionic liquids displayed a range of crystallization behaviors when cooled to 123.15 K and reheated to 403.15 K. All liquids were Newtonian over a range of shear rates from (10 to 1000) s−1. Viscos...