THEORY OF AC POLARIZATION AND AC POLAROGRAPHY AND VOLTAMMETRY OF SURFACE REDOX REACTION

Theoretical equations are presented of the ac polarization and of the ac polarography and voltammetry for the surface redox reaction O//a//d plus ne reversible reaction R//a//d) in which charge transfer reaction takes place exclusively between the adsorbed reactants O//a//d and R//a//d, and both reactants are adsorbed so strongly that the amount of O or R brought to or removed from the electrode surface can be neglected. The interaction between adsorbed molecules is assumed to be expressed by Frumkin's a-parameters. Also the effect of the double layer impedance is taken into account. Some simplified cases are discussed in detail.