| 微环电极理论 |
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| 引用本文： | 刘小平,陆君涛,查全性. 微环电极理论[J]. 物理化学学报, 1990, 6(3): 269-271. DOI: 10.3866/PKU.WHXB19900304 |
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| 作者姓名： | 刘小平 陆君涛 查全性 |
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| 作者单位： | Department of Chemistry, Wuhan University |
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| 摘 要： | 近几年来,微电极的应用得到迅速发展,但由于混合边界条件的存在,微电极稳态和暂态问题的数学处理极为复杂.过去,微电极上不可逆和准可逆过程主要采用近似方法研究.自文献利用贝塞尔级数处理微盘电极稳态行为以后,两种可用来精确处理微
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| 关 键 词： | 微环电极 稳态 暂态 |
| 收稿时间： | 1989-12-26 |
| 修稿时间： | 1990-02-23 |
Theory of Microring Electrodes |
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| Liu Xiao-Ping,Lu Jun-Tao,Zha Chuan-Sin. Theory of Microring Electrodes[J]. Acta Physico-Chimica Sinica, 1990, 6(3): 269-271. DOI: 10.3866/PKU.WHXB19900304 |
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| Authors: | Liu Xiao-Ping Lu Jun-Tao Zha Chuan-Sin |
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| Affiliation: | Department of Chemistry, Wuhan University |
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| Abstract: | In this work, expressions for concentration and current in steady-state and tran-sient-state experiments are given for microring electrodes. For the electrode reaction O+ne→R, assuming bulk concentration of R c_R~b=0, under steady-state conditions, we have G_O=G_R=sum from μ=1 to ∞ α_μ integral from n=0 to ∞ f_μ (α)J_0 (αr/r_2) exp (-αz/r_2) dαwhere f_μ(α)=J_μ(α)/α~μ-sum from r=1 to μ (r_1/r_2)~p[1-(r_1/r_2)~2]~(μ-r)/2~(μ-ν)(μ-ν)! J,(αr_1/r_2)/α~ν G_O=1 - (C_O/C_O~b), G_R=D_RC_R/(D_OC_O~b)where c_O~b is the bulk concentration of species O. r_2, r_1 are outer and inner radii respectively. The... |
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