Simulation of electrocatalytic mechanism followed by chemical reaction

• Redox properties of electroinactive substrate can be analyzed by the electrocatalytic mechanism.
• For analytical purpose the fast and irreversible catalytic mechanism is more useful than the slow and reversible one.

The second order, reversible electrocatalytic mechanism followed by irreversible transformation of oxidized substrate is analyzed for chronoamperometry. The dependences of limiting current and half-wave potential on the measurement time and the concentrations of catalyst and substrate are investigated theoretically. These relationships can be used for the redox characterization of substrate and the measurement of its concentration.