Study on electrode reaction of polym(N-methyl pyrrole)/platinum in AC measurement

The kinetic parameters of the process of oxidation (P-doping) of Poly(N-methyl-pyrrole), PNMP, in electrochemical cells containing a solution of EtNBF4 in propylene carbonate have been determinedd by cyclic voltammetry and impedance analysis. In this paper, we attempted to change the applied potential in AC impedance measurement. The results are interpreted on the basis of equivalent circuit models and determine the kinetic parameters of PNMP. We evaluated and discussed the diffusion of the BFsu− dopant ion and the potential dependence of the kinetic paramerters.