Analysing the relationship between the fields of thermo- and electrocatalysis taking hydrogen peroxide as a case study
Guilherme V. Fortunato, Enrico Pizzutilo, Ioannis Katsounaros, Daniel Göhl, Richard J. Lewis, Karl J. J. Mayrhofer, Graham J. Hutchings, Simon J. Freakley, Marc Ledendecker
Abstract
Catalysis is inherently driven by the interaction of reactants, intermediates and formed products with the catalyst's surface. In order to reach the desired transition state and to overcome the kinetic barrier, elevated temperatures or electrical potentials are employed to increase the rate of reaction. Despite immense efforts in the last decades, research in thermo-and electrocatalysis has often preceded in isolation, even for similar reactions. Conceptually, any heterogeneous surface process that involves changes in oxidation states, redox processes, adsorption of charged species (even as spectators) or heterolytic cleavage of small molecules should be thought of as having parallels with electrochemical processes occurring at electrified interfaces. Herein, we compare current trends in thermo-and electrocatalysis and elaborate on the commonalities and differences between both research fields, with a specific focus on the production of hydrogen peroxide as case study. We hope that interlinking both fields will be inspiring and thought-provoking, eventually creating synergies and leverage towards more efficient decentralized chemical conversion processes.