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arXiv 1901.09385cond-mat.softphysics.chem-ph
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LiCl水溶液离子电导率的实验和分子动力学研究

Experimental and molecular dynamics study of the ionic conductivity in aqueous LiCl electrolytes

Are Yllö, Chao Zhang

摘要:

氯化锂LiCl被广泛用作研究强离解1-1电解质溶液的原型体系。在这里,我们结合实验测量和经典的分子动力学模拟来研究该系统中的离子导电。在20 $^\circ$ C和50 $^\circ$ C下从实验报告离子电导率,并与来自分子动力学模拟的结果进行比较。本工作的主要发现是Li $^+$和Cl $^-$的迁移数在高浓度下变得相当。这种现象是独立的模拟中所采用的力场,并可能导致从离子特定的浓度依赖性的迁移率。

英文摘要:

Lithium chloride LiCl is widely used as a prototype system to study the strongly dissociated 1-1 electrolyte solution. Here, we combined experimental measurements and classical molecular dynamics simulations to study the ion conduction in this system. Ionic conductivities were reported at both 20$^\circ$C and 50$^\circ$C from experiments and compared to results from molecular dynamics simulations. The main finding of this work is that transference numbers of Li$^+$ and Cl$^-$ become comparable at high concentration. This phenomenon is independent of the force fields employed in the simulation and may be resulted from the ion-specific concentration dependence of mobility.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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