A unified perspective on preferential solvation and adsorption based on inhomogeneous solvation theory
A unified perspective on preferential solvation and adsorption based on inhomogeneous solvation theory
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DOI：
10.1016/j.physa.2017.11.113
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发表时间：
2018-02
影响因子：
3.3
通讯作者：
S. Shimizu;N. Matubayasi
中科院分区：
文献类型：
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作者：
S. Shimizu;N. Matubayasi
通过相律所保证的溶质-溶剂和溶质-助溶剂相互作用的独立测定，揭示了助溶剂对溶剂化的影响。基于非均匀溶剂化理论的第一原理，我们提出了一个同时包含优先溶剂化和表面吸附的一般矩阵理论。稳定性条件的核心作用已经从第一原理中阐明了，稳定性条件支配着多少过剩数量(表面过剩)是独立可确定的。非均相方法的优点是易于统一处理溶剂化和吸附，而它的缺点，例如在膜透析实验中，可以通过非均相-均相转化来克服。
How cosolvents affects solvation has been revealed through the independent determination of solute-solvent and solute-cosolvent interactions guaranteed by the phase rule. Based on the first principles of inhomogeneous solvation theory, we present here a general matrix theory encompassing both preferential solvation and surface adsorption. The central role of the stability conditions, that govern how many excess numbers (surface excesses) are independently determinable, have been clarified from the first principles. The advantage of the inhomogeneous approach has been demonstrated to be in its ease in treating solvation and adsorption in a unified manner, while its disadvantage, for example in membrane dialysis experiments, can be overcome by the inhomogeneous–homogeneous conversion.