Influence of the Stern layer on electrokinetic phenomena in porous media

被引：21

作者：

Gupta, A. K.

Coelho, D.

Adler, P. M.

机构：

[1] UPMC Sisyphe, F-75252 Paris 05, France

[2] ANDRA, Chatenay Malabry, France

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2007年 / 316卷 / 01期

关键词：

stern layer; charge densities; zeta potential; electroosmosis; surface conduction; conductivity;

D O I：

10.1016/j.jcis.2007.07.027

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 Stern layer has been included in the description of electrolytes in a charged porous medium, with possibly large zeta potentials. The surface charge density, the conductivity, and the electroosmotic coupling coefficient are calculated for various porous structures and various physicochemical conditions. The saturation of the Stem layer is analyzed, as well as its consequences for the macroscopic properties of the medium. The discontinuous character of the solid interface has an important influence on the macroscopic conductivity and the electroosmotic coefficient. (C) 2007 Elsevier Inc. All rights reserved.

引用

页码：140 / 159

页数：20

共 41 条

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Adler P., 1992, Porous Media: Geometry and Transports

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