Properties of the Diffuse Double Layer at High Electrolyte Concentrations

被引:12
作者
Fawcett, W. Ronald [1 ]
Ryan, Peter J. [1 ]
Smagala, Thomas G. [1 ]
机构
[1] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA
基金
美国国家科学基金会;
关键词
POISSON-BOLTZMANN EQUATION; ELECTRIC-DOUBLE-LAYER; DENSITY-FUNCTIONAL THEORY; MONTE-CARLO;
D O I
10.1021/jp9058577
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The equations necessary to calculate the potential drop across the diffuse layer and its differential capacity are derived for 1: 1 electrolytes on the basis of the Eigen and Wicke theory for concentrated electrolyte solutions. The results of this model are then compared. with Monte Carlo data for more concentrated solutions and solutions with ions of large diameters. It is shown that the Eigen-Wicke model is inadequate because it fails to consider the change in potential at a given ion due to its surrounding atmosphere.
引用
收藏
页码:14310 / 14314
页数:5
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