Factors controlling the diffusion of ions in ionic liquids.
Factors controlling the diffusion of ions in ionic liquids.
复制标题
控制离子在离子液体中扩散的因素。
作者：
S. Tsuzuki
具有低粘度和高离子电导率的离子液体的开发对于离子液体的许多应用是重要的，例如它们用作电子器件的电解质。离子在离子液体中的输运性质取决于离子的运动。随着离子扩散变快，粘度变低，离子电导率变高。因此，阐明控制离子扩散的因素对开发新的离子液体是必要的。在这篇小综述中，我们讨论了控制离子在离子液体中扩散的因素（离子的大小;离子的形状;阳离子和阴离子之间相互作用的大小;构象灵活性;离子的分子量;溶质的混合物;以及离子液体中纳米结构的影响）。我们强调使用计算方法（分子动力学模拟和量子力学计算）结合实验测量的重要性，用于阐明控制离子在离子液体中扩散的因素。
The development of ionic liquids with low viscosity and high ionic conductivity is important for many applications of ionic liquids, such as their use as electrolytes for electronic devices. The transport properties depend on the motion of ions in ionic liquids. The viscosity becomes low and the ionic conductivity becomes high as the diffusion of ions becomes fast. Therefore the elucidation of the factors controlling the diffusion of ions is needed for developing new ionic liquids. In this Minireview we discuss the factors controlling the diffusion of ions in ionic liquids (size of ion; shape of ion; magnitude of interaction between cation and anion; conformational flexibility; molecular mass of ion; mixture of solute; and the effects of nanostructures in ionic liquids). We emphasize the importance of the use of computational methods (molecular dynamic simulations and quantum mechanical calculations) combined with experimental measurements for elucidating the factors controlling the diffusion of ions in ionic liquids.