LINEAR-ANALYSIS OF STEADY-STATE E-Q, EQC AND EQC' VOLTAMMOGRAMS

A linear method of analyzing quasi-reversible steady-state voltammogra ms is presented. On the basis of it, an algorithm was formed which can be used to calculate the kinetic parameters: standard rate constant ( k(o)), transfer coefficient (alpha), and formal potential (E-o'), reli ably and precisely at the same time, from a straight line of a logarit hmic function g(I,E) vs. E, which is similar to the conventional metho d for the reversible or totally irreversible reactions. It can also be used in analysis of steady-state EqC and EqC' voltammograms to obtain the parameters mentioned above, together with the homogeneous reactio n rate constant (k(c)). This algorithm avoids the problem of choosing initial values of the variables. (C) 1997 Elsevier Science S.A.