Abstract

The general equations corresponding to CEC and catalytic processes when current-time functions of the forms I ( t) = I 0 t u ewt and I( t) = I 0( t 1 + t) v are applied to a DME were deduced taking into account the electrode sphericity and using a blank period t 1. From these expressions we deduce as particular cases those corresponding to other types of electrodes (for example expanding plane electrode, static mercury dropping electrode and stationary plane electrode), other well-known current-time functions (power current, exponential current and step current), other reaction schemes (CE, EC and E mechanisms) and those cases in which the blank period is zero. Moreover, methods for determining heterogeneous and homogeneous kinetic parameters are proposed in each reaction scheme.

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