Abstract
A model of irreversible reduction complicated by the reactant adsorption is developed for the constant electrode potential. Chronoamperograms, or dc polarograms consist of two components that flow simultaneously and correspond to the volume and surface electrode reactions. The total response is a wave with the maximum that originates from the dependence of the kinetics of electrode reactions on the surface coverage. The dependence of peak potentials on the reactant concentration is demonstrated and explained. The difference between reversible and irreversible reductions is discussed.
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