title: A Bifunctional Electrocatalyst for Oxygen Evolution and Oxygen Reduction Reactions in Water.
abstract: Oxygen reduction and water oxidation are two key processes in fuel cell applications. The oxidation of water to dioxygen is a 4 H+/4 e-process, while oxygen can be fully reduced to water by a 4 e-/4 H+process or partially reduced by fewer electrons to reactive oxygen species such as H2O2and O2-. We demonstrate that a novel manganese corrole complex behaves as a bifunctional catalyst for both the electrocatalytic generation of dioxygen as well as the reduction of dioxygen in aqueous media. Furthermore, our combined kinetic, spectroscopic, and electrochemical study of manganese corroles adsorbed on different electrode materials (down to a submolecular level) reveals mechanistic details of the oxygen evolution and reduction processes.
authors.affiliation: Institute of Organic Chemistry Johannes Kepler University Linz Altenberger Strasse 69 4040 Linz Austria.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Schöfberger
authors.affiliation: Institute of Organic Chemistry Johannes Kepler University Linz Altenberger Strasse 69 4040 Linz Austria.
authors.forename: Felix
authors.initials: F
authors.lastname: Faschinger
authors.affiliation: Department of Inorganic Chemistry Indian Association for the Cultivation of Science 2A & 2B Raja SC Mullik Road Kolkata 700032 India.
authors.forename: Samir
authors.initials: S
authors.lastname: Chattopadhyay
authors.affiliation: Department of Inorganic Chemistry Indian Association for the Cultivation of Science 2A & 2B Raja SC Mullik Road Kolkata 700032 India.
authors.forename: Snehadri
authors.initials: S
authors.lastname: Bhakta
authors.affiliation: Department of Inorganic Chemistry Indian Association for the Cultivation of Science 2A & 2B Raja SC Mullik Road Kolkata 700032 India.
authors.forename: Biswajit
authors.initials: B
authors.lastname: Mondal
authors.affiliation: Radboud University Institute for Molecules and Materials Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands.
authors.forename: Johannes A A W
authors.initials: JA
authors.lastname: Elemans
authors.affiliation: Institute of Semiconductor and Solid State Physics Johannes Kepler University Linz Altenberger Strasse 69 4040 Linz Austria.
authors.forename: Stefan
authors.initials: S
authors.lastname: Müllegger
authors.affiliation: Institute of Semiconductor and Solid State Physics Johannes Kepler University Linz Altenberger Strasse 69 4040 Linz Austria.
authors.forename: Stefano
authors.initials: S
authors.lastname: Tebi
authors.affiliation: Institute of Semiconductor and Solid State Physics Johannes Kepler University Linz Altenberger Strasse 69 4040 Linz Austria.
authors.forename: Reinhold
authors.initials: R
authors.lastname: Koch
authors.affiliation: Physics Department E20 Technische Universität München James-Franck-Strasse 1 85748 Garching Germany.
authors.forename: Florian
authors.initials: F
authors.lastname: Klappenberger
authors.affiliation: Physics Department E20 Technische Universität München James-Franck-Strasse 1 85748 Garching Germany.
authors.forename: Mateusz
authors.initials: M
authors.lastname: Paszkiewicz
authors.affiliation: Physics Department E20 Technische Universität München James-Franck-Strasse 1 85748 Garching Germany.
authors.forename: Johannes V
authors.initials: JV
authors.lastname: Barth
authors.affiliation: Department of Physics Paderborn University Warburger Strasse 100 33098 Paderborn Germany.
authors.forename: Eva
authors.initials: E
authors.lastname: Rauls
authors.affiliation: Department of Physics Paderborn University Warburger Strasse 100 33098 Paderborn Germany.
authors.forename: Hazem
authors.initials: H
authors.lastname: Aldahhak
authors.affiliation: Department of Physics Paderborn University Warburger Strasse 100 33098 Paderborn Germany.
authors.forename: Wolf Gero
authors.initials: WG
authors.lastname: Schmidt
authors.affiliation: Department of Inorganic Chemistry Indian Association for the Cultivation of Science 2A & 2B Raja SC Mullik Road Kolkata 700032 India.
authors.forename: Abhishek
authors.initials: A
authors.lastname: Dey
keywords: Corrole; Elektrochemie; Mangan; Sauerstoffentwicklung; Sauerstoffreduktion