Interdigitated ring electrodes: Theory and experiment
Interdigitated ring electrodes: Theory and experiment
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DOI：
10.1016/j.jelechem.2013.10.009
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发表时间：
2013-11-15
影响因子：
4.5
通讯作者：
Compton, Richard G.
中科院分区：
文献类型：
--
作者：
Barnes, Edward O.;Fernandez-la-Villa, Ana;Compton, Richard G.
亚铁氰化钾，K4 Fe（CN）（6），在水溶液中的完全支持条件下进行的氧化在叉指带和环电极阵列，并与理论模型开发的模拟过程进行比较。用文献中Fe（CN）（6）（4-）和Fe（CN）（6）（3-）的扩散系数计算了模拟数据，结果与实验值吻合较好。理论模型被用来比较从叉指带和环阵列的响应，和环阵列的大小所需的近似的线性带阵列的响应进行了研究。推导了环形阵列中一对电极所需的环半径的公式，以给出带阵列中一对电极的5%的结果。这个方程被发现是独立的扫描速率超过六个数量级。(C)2013爱思唯尔有限公司版权所有。
The oxidation of potassium ferrocyanide, K4Fe (CN)(6), in aqueous solution under fully supported conditions is carried out at interdigitated band and ring electrode arrays, and compared to theoretical models developed to simulate the processes. Simulated data is found to fit well with experimental results using literature values of diffusion coefficients for Fe(CN)(6)(4-) and Fe(CN)(6)(3-). The theoretical models are used to compare responses from interdigitated band and ring arrays, and the size of ring array required to approximate the response to a linear band array is investigated. An equation is developed for the radius of ring required for a pair of electrodes in a ring array to give a result with 5% of a pair of electrodes in a band array. This equation is found to be independent of the scan rate used over six orders of magnitude. (C) 2013 Elsevier B.V. All rights reserved.