Double layer capacitance and a microscopic structure of electrified liquid-liquid interfaces

被引:25
|
作者
Daikhin, LI [1 ]
Urbakh, M [1 ]
机构
[1] Tel Aviv Univ, Sch Chem, IL-69978 Tel Aviv, Israel
关键词
liquid-liquid interfaces; capacitance; ion penetration; ion pair interactions;
D O I
10.1016/j.jelechem.2003.06.009
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
We develop a theory of the double layer at electrolyte-electrolyte interfaces taking in to account the microscopic structure of the interfacial region. This includes a "mixed boundary layer" where the overlapping of two space-charge regions occurs, and the effects of ion association and adsorption at the interface. Theoretical results are in good agreement with experimental data obtained for various organic solvents and electrolytes. The theory suggests a framework for the treatment of the capacitance data and establishes a relationship between experimental results and the microscopic structure of interfaces between two immiscible electrolyte solutions (ITIES). (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:59 / 67
页数:9
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