A unified new analytical-approximation for positive feedback currents with a microdisk SECM tip

被引：80

作者：

Lefrou, C. ^{[1
]}

机构：

[1] UJF, ENSEEG, UMR 5631, CNRS,Lab Electrochim & Physicochim Mat & Interfac, F-38402 St Martin Dheres, France

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2006年 / 592卷 / 01期

关键词：

scanning electrochemical microscopy; feedback mode; disk electrode; microelectrodes; steady-state; simulation;

D O I：

10.1016/j.jelechem.2006.05.003

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Analytical approximations for steady-state positive feedback currents in scanning electrochemical microscopy (SECM) experiments using a microdisk are discussed. The use of a conformal map transformation leads to the use of new mathematical functions. A general analytical expression for all values of tip-substrate distances and all types of microdisk (with various insulator thicknesses) are thus obtained with only four adjustable parameters. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：103 / 112

页数：10

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