Abdelmounaim Manoussi, Abdellatif Baali, Hakima Amor, Nadia Ouzennou
[Not Available]
Sante publique (Vandoeuvre-les-Nancy, France)
physicochemical model developed electrocatalytic reactions involving multiple electron transfer steps occurring electric double layer edl local reaction conditions calculated using meanfield edl model derived comprehensive grand potential considers steric effects solvent polarization chemisorptioninduced surface dipoles macroscopic mass transport socalled diffusion layer controlled set controlling equations edl model without imposing electroneutrality assumption usual gerischers formulation electron transfer theory corrected local reaction conditions used describe kinetics elementary steps multistep kinetics electrocatalytic reaction treated using microkinetics modelling without resorting usual ratedetermining step approximation formal analysis model retrieve canonical models additional assumptions selfconsistent numerical implementation model demonstrated oxygen reduction reaction orr pt111 acidic solution aptness model verified comparison experimental data comparative study full model simplified versions allows us examine orr influenced asymmetric steric effects finite concentration ions solvent polarization surface charge effects metal electronic structure effects find difference terms overpotential full model simplest model 01 v current density 6 macm2