Isobaric and Isochoric Heat Capacities of Imidazolium-Based and Pyrrolidinium-Based Ionic Liquids as a Function of Temperature: Modeling of Isobaric Heat Capacity
Isobaric and Isochoric Heat Capacities of Imidazolium-Based and Pyrrolidinium-Based Ionic Liquids as a Function of Temperature: Modeling of Isobaric Heat Capacity
复制标题
DOI：
10.1021/acs.iecr.6b04780
复制
发表时间：
2017-02
影响因子：
4.2
通讯作者：
E. Zorȩbski;M. Zorȩbski;M. Dzida;P. Goodrich;J. Jacquemin
中科院分区：
文献类型：
--
作者：
E. Zorȩbski;M. Zorȩbski;M. Dzida;P. Goodrich;J. Jacquemin
在常压下测定了7个1-烷基-3-甲基咪唑双(三氟甲基磺酰基)亚胺、2个1-烷基-1-甲基吡咯烷基双(三氟甲基磺酰基)亚胺和2个双(1-烷基-3-甲基咪唑)四硫氰钴酸盐在293.15~323.15 K温度范围内的恒压和等容热容量，并用声学方法间接测定了它们的等压热容和等温压缩率。由实验数据可知，1-烷基-3-甲基咪唑双(三氟甲基磺酰基)亚胺类化合物的等压热容随着烷基链长的增加而线性增加，没有观察到奇、偶碳数效应。在将获得的数据与现有文献数据进行严格比较后，推荐了最可靠的值。它也一直是..。
The isobaric and isochoric heat capacities of seven 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imides, two 1-alkyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imides, and two bis(1-alkyl-3-methylimidazolium) tetrathiocyanatocobaltates were determined at atmospheric pressure in the temperature range from 293.15 to 323.15 K. The isobaric heat capacities were determined by means of differential scanning calorimetry, whereas isochoric heat capacities were determined along with isothermal compressibilities indirectly by means of the acoustic method from the speed of sound and density measurements. Based on the experimental data, as expected, the isobaric heat capacity increases linearly with increasing alkyl chain length in the cation of 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imides and no odd and even carbon number effect is observed. After critical comparison of the obtained data with the available literature data, the most reliable values are recommended. It has been also...