The linear sweep voltammetry of random arrays of microdisc electrodes:: Fitting of experimental data

被引：19

作者：

Ordeig, Olga

Banks, Craig E.

Davies, Trevor J.

del Campo, Javier

Xavier Munoz, Francesc

Compton, Richard G.

机构：

[1] Univ Oxford, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England

[2] Univ Autonoma Barcelona, CSIC, CNM, IMB,Ctr Nacl Microelect, E-08193 Barcelona, Spain

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2006年 / 592卷 / 02期

关键词：

RAM electrodes; microelectrodes; microdisc array; simulation; 'dead' electrodes;

D O I：

10.1016/j.jelechem.2006.05.008

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A recently reported (T.J. Davies, R.G. Compton, J. Electroanal. Chem. 585 (2005) 63) two dimensional simulation method for the linear sweep response of arrays of randomly distributed microdise electrodes is applied to 'RAM (TM) electrodes' (S. Fletcher, M.D. Horne, Electrochem. Commun. 1 (1999) 502) in which thousands of carbon wires are sealed into epoxy resin producing random assembles of microdiscs. Theory and experiment are found to be consistent and it is demonstrated that the former allows the number of 'dead' electrodes in the array to be counted. In particular it is concluded by voltammetric means above that only ca. 30% of the carbon fibres emerging at the surface are electrochemically active. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：126 / 130

页数：5

共 23 条

[1]

Akkermans RP, 1999, ELECTROANAL, V11, P1191, DOI 10.1002/(SICI)1521-4109(199911)11:16<1191::AID-ELAN1191>3.0.CO

[2]

2-L

[3]

Amatore C, 2004, TRENDS IN MOLECULAR ELECTROCHEMISTRY, P385

[4]

Amatore C, 2001, ELECTROANAL, V13, P646, DOI 10.1002/1521-4109(200105)13:8/9<646::AID-ELAN646>3.0.CO