期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 585, 期 1, 页码 63-82出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2005.07.022
关键词
microelectrodes; microdisc; microdisc array; regular array; random array; diffusion domain
Microdisc electrode arrays are popular tools in electroanalytical chemistry. In linear sweep and cyclic voltammetry experiments, for optimum performance the individual discs in the array must have a centre-to-centre separation large enough to avoid diffusion zone overlap (which is also known as shielding), but not too large as to result in a waste of surface area. Using a 2-dimensional simulation method, this work examines in detail the currently accepted guidelines on centre-to-centre separation and identifies the key factors involved in the voltammetry of both regular and random arrays of microdisc (and nanodise) electrodes. (c) 2005 Elsevier B.V. All rights reserved.
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