A lattice-gas model for specific ion adsorption at liquid | liquid interfaces

被引：14

作者：

Frank, S ^{[1
]}

Schmickler, W ^{[1
]}

机构：

[1] Univ Ulm, Abt Elektrochem, D-89069 Ulm, Germany

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2001年 / 500卷 / 1-2期

关键词：

liquid vertical bar liquid interfaces; specific adsorption; lattice-gas model; electron transfer;

D O I：

10.1016/S0022-0728(00)00438-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A lattice-gas model is used to investigate the specific adsorption of ions at the interface between two immiscible electrolyte solutions. From Monte Carlo simulations, the profiles of particle densities and of the electrostatic potential are obtained. Specific adsorption is shown to affect the potential distribution markedly. In some cases an overshoot of the potential can be observed, an effect that is well known from specific adsorption at metal electrodes. This redistribution of charge and potential can increase the interfacial capacity, shift the potential of zero charge, and influence the rate of electron-transfer reactions. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：491 / 497

页数：7

共 10 条

[1] Photoinduced electron transfer at liquid/liquid interfaces - Part II. A study of the electron transfer and recombination dynamics by intensity modulated photocurrent spectroscopy (IMPS) [J].