Frequency-dependent electrical conductivity of concentrated dispersions of spherical colloidal particles

被引:15
作者
Bradshaw-Hajek, B. H. [1 ,2 ]
Miklavcic, S. J. [1 ,2 ]
White, L. R. [3 ]
机构
[1] Univ S Australia, Sch Math & Stat, Mawson Lakes, SA 5095, Australia
[2] Linkoping Univ, Dept Sci & Technol, S-60174 Norrkoping, Sweden
[3] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA
关键词
D O I
10.1021/la703777g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This paper outlines the application of a self-consistent cell-model theory of electrokinetics to the problem of determining the electrical conductivity of a dense suspension of spherical colloidal particles. Numerical solutions of the standard electrokinetic equations, subject to self-consistent boundary conditions, are implemented in formulas for the electrical conductivity appropriate to the particle-averaged cell model of the suspension. Results of calculations as a function of frequency, zeta potential, volume fraction, and electrolyte composition, are presented and discussed.
引用
收藏
页码:4512 / 4522
页数:11
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