期刊
JOURNAL OF CHEMICAL THERMODYNAMICS
卷 130, 期 -, 页码 166-172出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jct.2018.10.003
关键词
Deep eutectic solvents; LiCl; Density; Dynamic viscosity; Temperature dependence of density; Temperature dependence of dynamic viscosity
资金
- Council of Scientific and Industrial Research (CSIR), Government of India [01(2882)/17/EMR-II]
Deep eutectic solvents (DESs) have emerged as superior alternatives to ionic liquids. Lithium salt-added DES mixtures may possess favorable properties as novel electrolyte media for Li-ion batteries. Densities and dynamic viscosities of LiCl-added DES reline (constituted of salt choline chloride and H-bond donor urea in 1:2 mol ratio) mixtures up to similar to 0.2 molal LiCl [m(LiCl)] in the temperature range (303.15358.15) K are presented. Decrease in density with increasing temperature is found to follow a simple linear expression. The density of LiCl-added reline also increases linearly with increasing m(LiCl) in the investigated temperature range. The temperature dependence of the dynamic viscosity of the (reline + LiCl) mixtures follows simple Arrhenius-type expression. The dynamic viscosity of LiCl-added reline mixture at a given temperature increases exponentially with increasing m(LiCl); the exponential increase being more prominent at lower temperatures. The trends in density and dynamic viscosity with temperature and m (LiCl) for LiCl-added DES reline are rather simplistic in comparison to Li salt-added ionic liquid mixtures. (C) 2018 Elsevier Ltd.
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