Abstract
A frequently employed method for the diagnosis of electrochemical mechanisms is the Koutecky–Levich (KL) method. This method is based on the extrapolation of the reciprocal of the current intensity (or density) versus the reciprocal of the square root of the rotational rate of a rotating disc electrode (plot 1 /j vs . ω − 1/2 ). From the intercept and slope of this plot, several diffusional and kinetic parameters of the mechanism can be obtained. In this article, the relative error of j k (kinetic current density term) and of k 0 (standard rate constant) is estimated and discussed. Moreover, the relative error calculation is also estimated for the case when none of the kinetic terms in the KL expression (forward and backward reactions) can be disregarded.
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