An approximate analytic solution to the modified Poisson-Boltzmann equation: effects of ionic size

被引:25
|
作者
Ohshima, Hiroyuki [1 ]
机构
[1] Tokyo Univ Sci, Fac Pharmaceut Sci, 2641 Yamazaki Noda, Chiba 2788510, Japan
关键词
Modified Poisson-Boltzmann equation; Effects of ionic size; Surface charge density/surface potential relationship; ELECTRICAL DOUBLE-LAYER;
D O I
10.1007/s00396-016-3973-9
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
A simple algorithm is presented for solving the modified Poisson-Boltzmann equation for the electric potential around a planar charged surface in contact with an electrolyte solution, which takes into account the effects of ionic size on the basis of ionic activity coefficient given by Carnahan and Starling (J Chem Phys (1969) 51: 635). An approximate analytic expression for the surface charge density/surface potential relationship is derived.
引用
收藏
页码:2121 / 2125
页数:5
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