Abstract
The theory for the EE mechanism with adsorption of the intermediate species following Henry's isotherm has been developed for an electrode expanding according to the law A( t) = A 0 t 2, where A( t) is the area of the electrode. Hence, the corresponding equations can be applied both for a stationary plane electrode and for a dropping mercury electrode (expanding plane electrode model) by making z = 0 and z = 2 3 , respectively. In addition, we have also derived the corresponding equations when we adopt for the DME the more rigorous expanding sphere electrode model so that we may consider the influence exerted by the sphericity of the electrode on the current-potential ( I- E) curves. Characteristics of the I - E curves are discussed.
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