HYDRODYNAMIC MODULATION AT A ROTATING-DISK ELECTRODE

被引：41

作者：

ALBERY, WJ ^{[1
]}

HILLMAN, AR ^{[1
]}

BRUCKENSTEIN, S ^{[1
]}

机构：

[1] PHYS CHEM LAB,OXFORD OX1 3QZ,ENGLAND

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1979年 / 100卷 / 1-2期

关键词：

D O I：

10.1016/S0022-0728(79)80192-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A theoretical treatment is presented for experiments involving hydrodynamic modulation at a disc electrode. Analytical expressions are obtained for the phase shift and amplitude of the current compared to those of the rotation speed for both potentiostatic and galvanostatic experiments. The theoretical expressions are found to be in good agreement with previous numerical and experimental results. [1,2]. Expressions are also obtained for the response of the disc current to a step function in rotation speed. Good agreement with experiment is found. This experiment is a general method of measuring diffusion coefficients without having to know the concentration of the electroactive species. © 1979 Elsevier Sequoia S.A.

引用

页码：687 / 709

页数：23

共 13 条

[1] RING DISC ELECTRODES .15. ALTERNATING CURRENT MEASUREMENTS [J].