Analysis Method for Rotating Disk Voltammograms of Electrocatalytic Reaction —Oxygen Reduction Reaction—

Rotating disk voltammograms of electrocatalytic reactions were often analyzed on a model the totally irreversible reaction. The problem with conventional method is pointed out, and validity an analysis reaction demonstrated for oxygen-reduction (ORR) as example. ORRs sometimes show gradual change in limiting current region called residual slope. phenomenon has been explained random distribution which catalytic sites communicate long-range electron transfer electronic conductors that locate at distances (z), are uniformly distributed respect to z. Observed data ORR well reproduced by non-linear least squares model. result briefly discussed.