Scaling perspectives of underscreening in concentrated electrolyte solutions

文献信息

发布日期 2023-10-06
DOI 10.1039/D3SM01094E
影响因子 3.679
作者

Philip A. Pincus



摘要

We present a scaling view of underscreening observed in salt solutions in the range of concentrations greater than about 1 M, in which the screening length increases with concentration. The system consists of hydrated clusters of positive and negative ions with a single unpaired ion as suggested by recent simulations. The environment of this ion is more hydrated than average which leads to a self-similar situation in which the size of this environment scales with the screening length. The prefactor involves the local dielectric constant and the cluster density. The scaling arguments as well as the cluster model lead to scaling of the screening length with the ion concentration, in agreement with observations.

来源期刊

Soft Matter

Soft Matter
CiteScore: 6
自引率: 10.3%
年发文量: 856

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