Communication—Hydrogen Peroxide Reduction in Aqueous Electrolytes: Influence of a Heterogeneous Decomposition Step

Abstract

A mechanistic model is herein presented for the reduction of H2O2(aq) in aqueous electrolytes on a rotating disk electrode that considers the possible heterogeneous dismutation of H2O2(aq). A theoretical analysis of this model predicts Koutecky-Levich plots that deviate from linearity at high rotation rates depending on the relative values of the rates constants of the processes involved, in agreement with the behavior found for a variety of electrode materials. (C) The Author(s) 2016. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. All rights reserved.