Oxygen evolution on La0.5Ba0.5CoO3 in alkaline solutions. Steady-state and reaction order experiments

Abstract

The results of the kinetic experiments may be explained with the Krasil'shchikov mechanism by taking the second step as rate determining and assuming low coverage Langmuir adsorption. If we drop this condition and tolerate interaction of adsorbed intermediates by switching to Frumkin-type adsorption, it is 136 not yet clear whether the same mechanism and rate-determining step can still account for the obtained experimental facts. This and the observed non-stationary behaviour necessitate further investigations.