Kinetics of Anion Transfer across the Liquid | Liquid Interface of a Thin Organic Film Modified Electrode, Studied by Means of Square-Wave Voltammetry

2005 ◽  
Vol 77 (7) ◽  
pp. 1940-1949 ◽  
Author(s):  
François Quentel ◽  
Valentin Mirčeski ◽  
Maurice L'Her
2010 ◽  
Vol 8 (3) ◽  
pp. 513-518 ◽  
Author(s):  
Milivoj Lovrić ◽  
Šebojka Komorsky-Lovrić

AbstractA model of electrode reaction complicated by slow adsorption of the reactant is developed for square-wave voltammetry with inverse scan direction. The relationship between the dimensionless net peak current and the logarithm of dimensionless rate constant of adsorption is a curve with a minimum and a maximum. For this reason the ratio of real net peak current and the square-root of frequency is a non-linear function of the logarithm of frequency and exhibits either a maximum or a minimum. The frequency of extreme serves for the estimation of the rate constant: log(k ads /D 1/2 ) = log(k*ads )crit + 0.5 log f crit , where (k*ads )crit is a critical dimensionless rate constant of adsorption. Square-wave voltammetry is sensitive to the kinetics of adsorption if k ads 2 cm s−1


2006 ◽  
Vol 78 (9) ◽  
pp. 2948-2956 ◽  
Author(s):  
Barry D. Fleming ◽  
Nicola L. Barlow ◽  
Jie Zhang ◽  
Alan M. Bond ◽  
Fraser A. Armstrong

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