Electrokinetic properties of monovalent electrolytes confined in charged nanopores: Effect of geometry and ionic short-range correlations

被引：5

作者：

Sanchez-Arellano, Enrique ^{[2
,3
]}

Olivares, Wilmer ^{[4
]}

Lozada-Cassou, Marcelo ^{[1
]}

Jimenez-Angeles, Felipe ^{[1
]}

机构：

[1] Inst Mexicano Petr, Programa Ingn Mol, Mexico City 07730, DF, Mexico

[2] Univ Autonoma Metropolitana Iztapalapa, Dept Fis, Mexico City 09340, DF, Mexico

[3] Univ Autonoma Ciudad Mexico, Colegio Ciencia & Tecnol, Mexico City 09620, DF, Mexico

[4] Univ Los Andes, Fac Ciencias, Dept Quim, Grp Quim Teor, Merida 5101, Venezuela

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2009年 / 330卷 / 02期

关键词：

Electrokinetic properties; Cylindrical nanopore; Slitlike nanopore; Capillary conductance; Electroviscosity; Streaming potential; ELECTRICAL DOUBLE-LAYER; FINE CYLINDRICAL CAPILLARIES; HYPERNETTED-CHAIN; MONTE-CARLO; POROUS-MEDIA; FLOW; POTENTIALS; MICROPORES; SIMULATION; ISOTHERMS;

D O I：

10.1016/j.jcis.2008.10.051

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 electrokinetic properties (such as capillary conductance, electroviscosity, and the streaming potential) are obtained for a restricted primitive model electrolyte confined in a slitlike nanopore made up of two infinite parallel plates and in a cylindrical cavity of infinite extension. The hypernetted chain/mean spherical approximation (HNC/MSA) is used to obtain the equilibrium ionic concentration profiles inside the pores, which in turn are used to Calculate the electrokinetic properties via linear hydrodynamic equations. Our results are compared with those obtained via the classical Poisson-Boltzmann (PB) theory. Important quantitative and qualitative effects, attributed to geometry and to the proper consideration of short-range correlations by HNC/MSA, are discussed. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：474 / 482

页数：9

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