A bifunctional electrocatalyst for oxygen evolution and oxygen reduction reactions in water

Wolfgang Schöfberger; Felix Faschinger; Samir Chattopadhyay; Snehadri Bhakta; Biswajit Mondal; Johannes A.A.W. Elemans; Stefan Müllegger; Stefano Tebi; Reinhold Koch; Florian Klappenberger; Mateusz Paszkiewicz; Johannes V. Barth; Eva Rauls; Hazem Aldahhak; Wolf Gero Schmidt; Abhishek Dey

doi:10.1002/anie.201508404

A bifunctional electrocatalyst for oxygen evolution and oxygen reduction reactions in water

Wolfgang Schöfberger, Felix Faschinger, Samir Chattopadhyay, Snehadri Bhakta, Biswajit Mondal, Johannes A.A.W. Elemans, Stefan Müllegger, Stefano Tebi, Reinhold Koch, Florian Klappenberger, Mateusz Paszkiewicz, Johannes V. Barth, Eva Rauls, Hazem Aldahhak, Wolf Gero Schmidt, Abhishek Dey

Research output: Contribution to journal › Article › peer-review

126 Scopus citations

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 H₂O₂ and 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.

Original language	English
Pages (from-to)	2350-2355
Number of pages	6
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	7
DOIs	https://doi.org/10.1002/anie.201508404
State	Published - 12 Feb 2016
Externally published	Yes

Keywords

corroles
electrochemistry
manganese
oxygen evolution
oxygen reduction

ASJC Scopus subject areas

Catalysis
General Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/anie.201508404

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Schöfberger, W., Faschinger, F., Chattopadhyay, S., Bhakta, S., Mondal, B., Elemans, J. A. A. W., Müllegger, S., Tebi, S., Koch, R., Klappenberger, F., Paszkiewicz, M., Barth, J. V., Rauls, E., Aldahhak, H., Schmidt, W. G., & Dey, A. (2016). A bifunctional electrocatalyst for oxygen evolution and oxygen reduction reactions in water. Angewandte Chemie - International Edition, 55(7), 2350-2355. https://doi.org/10.1002/anie.201508404

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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 H2O2 and 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.",

keywords = "corroles, electrochemistry, manganese, oxygen evolution, oxygen reduction",

author = "Wolfgang Sch{\"o}fberger and Felix Faschinger and Samir Chattopadhyay and Snehadri Bhakta and Biswajit Mondal and Elemans, {Johannes A.A.W.} and Stefan M{\"u}llegger and Stefano Tebi and Reinhold Koch and Florian Klappenberger and Mateusz Paszkiewicz and Barth, {Johannes V.} and Eva Rauls and Hazem Aldahhak and Schmidt, {Wolf Gero} and Abhishek Dey",

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year = "2016",

month = feb,

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doi = "10.1002/anie.201508404",

language = "English",

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Schöfberger, W, Faschinger, F, Chattopadhyay, S, Bhakta, S, Mondal, B, Elemans, JAAW, Müllegger, S, Tebi, S, Koch, R, Klappenberger, F, Paszkiewicz, M, Barth, JV, Rauls, E, Aldahhak, H, Schmidt, WG & Dey, A 2016, 'A bifunctional electrocatalyst for oxygen evolution and oxygen reduction reactions in water', Angewandte Chemie - International Edition, vol. 55, no. 7, pp. 2350-2355. https://doi.org/10.1002/anie.201508404

TY - JOUR

T1 - A bifunctional electrocatalyst for oxygen evolution and oxygen reduction reactions in water

AU - Schöfberger, Wolfgang

AU - Faschinger, Felix

AU - Chattopadhyay, Samir

AU - Bhakta, Snehadri

AU - Mondal, Biswajit

AU - Elemans, Johannes A.A.W.

AU - Müllegger, Stefan

AU - Tebi, Stefano

AU - Koch, Reinhold

AU - Klappenberger, Florian

AU - Paszkiewicz, Mateusz

AU - Barth, Johannes V.

AU - Rauls, Eva

AU - Aldahhak, Hazem

AU - Schmidt, Wolf Gero

AU - Dey, Abhishek

PY - 2016/2/12

Y1 - 2016/2/12

N2 - 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 H2O2 and 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.

AB - 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 H2O2 and 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.

KW - corroles

KW - electrochemistry

KW - manganese

KW - oxygen evolution

KW - oxygen reduction

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U2 - 10.1002/anie.201508404

DO - 10.1002/anie.201508404

M3 - Article

AN - SCOPUS:84957818670

SN - 1433-7851

VL - 55

SP - 2350

EP - 2355

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 7

ER -

A bifunctional electrocatalyst for oxygen evolution and oxygen reduction reactions in water

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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