Thin film-modified electrodes: a model for the charge transfer resistance in electrochemical impedance spectroscopy

被引：22
|
作者：
Eloul, Shaltiel [1 ]
Batchelor-McAuley, Christopher [1 ]
Compton, Richard G. [1 ]
机构：
[1] Univ Oxford, Dept Chem, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England
来源：
JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2014年 / 18卷 / 12期
基金：
欧洲研究理事会;
关键词：
Modified electrodes; Electrochemical impedance spectroscopy; Thin film; Self-assembled monolayer; Charge transfer resistance; CHEMICALLY-MODIFIED ELECTRODES; TRANSMISSION-LINE MODEL;
D O I：
10.1007/s10008-014-2662-1
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A simple but general model is derived for the charge transfer resistance for a solution phase redox couple reacting at an electrode modified with a thin film such as a self-assembled monolayer. The layer itself is non-electroactive but changes the impedance response by virtue of altering the solubilities and diffusion coefficients of the electroactive species within the layer as compared to bulk solution. Such effects can give the illusion of altered electron transfer characteristics.
引用
收藏
页码：3239 / 3243
页数：5
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