计时安培法
微电极
微尺度化学
化学
阶跃势薛定谔方程的解
电化学
稳态(化学)
电子
循环伏安法
瞬态(计算机编程)
分析化学(期刊)
化学计量学
物理化学
电极
数学
物理
计算机科学
色谱法
量子力学
数学教育
操作系统
作者
Christian Amatore,Mohamed Azzabi,P. Calas,Anny Jutand,Christine Lefrou,Yolande Rollin
出处
期刊:Journal of electroanalytical chemistry and interfacial electrochemistry
[Elsevier]
日期:1990-08-01
卷期号:288 (1-2): 45-63
被引量:166
标识
DOI:10.1016/0022-0728(90)80024-z
摘要
A method elaborated from original work by Lingane is discussed and used to determine the absolute value of the electron stoichiometry corresponding to any electrochemical wave, under the exact conditions of its observation. The method is based on comparison of the currents measured by a pair of microscale techniques such as chronoamperometry, cyclic voltammetry, RDE or steady state methods at microelectrodes. From an evaluation of the uncertainties associated with the use of each possible pair, it is concluded that the best choice consists in chronoamperometry and a steady state method at a microelectrode. The experimental validity of the method is examined in five different cases pertaining to organic or organometallic electrochemistry, in which the determination of the absolute value of the number of electrons exchanged leads to important mechanistic or synthetic consequences.
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