Linear voltammetric current functions for a pseudo-first-order EC catalytic reaction scheme with DO ≠ DR: Series expansion algorithm

Abstract

Series expansions have been obtained for the linear voltammetric current functions for the case of a pseudo-first-order EC catalytic reaction scheme with a reversible or totally irreversible charge transfer reaction involving species of different diffusion coefficients D O, D R. Semi-infinite diffusion to stationary, planar electrodes was assumed. A theoretical discussion of the current function is presented for the case of the catalytic scheme involving a totally irreversible charge transfer reaction at D O ≠ D R. Methods which use the series expansion algorithms, allowing evaluation of the kinetic parameter of the chemical catalytic reaction and the ratio D O/ D R from the experimental linear voltammetric data, are proposed.