The Sum is More than Its Parts: Stability of MnFe Oxide Nanoparticles Supported on Oxygen-Functionalized Multi-Walled Carbon Nanotubes at Alternating Oxygen Reduction Reaction and Oxygen Evolution Reaction Conditions | Sciact - CRIS-system of Boreskov Institute of Catalysis

The Sum is More than Its Parts: Stability of MnFe Oxide Nanoparticles Supported on Oxygen-Functionalized Multi-Walled Carbon Nanotubes at Alternating Oxygen Reduction Reaction and Oxygen Evolution Reaction Conditions Full article

Journal

Journal of Solid State Electrochemistry
ISSN: 1432-8488 , E-ISSN: 1433-0768

Output data

Year: 2020, Volume: 24, Number: 11-12, Pages: 2901–2906 Pages count : 6 DOI: 10.1007/s10008-020-04667-2

Tags

Bifunctional oxygen electrodes; Electrocatalysis; Iron oxide; Manganese oxide; Multi-walled carbon nanotubes; Stability

Authors

Morales Dulce M. ^1,2 , Kazakova Mariya A. ³ , Purcel Maximilian ¹ , Masa Justus ⁴ , Schuhmann Wolfgang ¹

Affiliations

1	Analytical Chemistry – Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, Bochum, 44780, Germany
2	Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Nachwuchsgruppe Gestaltung des Sauerstoffentwicklungsmechanismus, Hahn-Meitner-Platz 1, Berlin, 14109, Germany
3	Boreskov Institute of Catalysis, SB RAS, Lavrentieva 5, Novosibirsk 630090, Russia
4	Department of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, Mülheim an der Ruhr, 45470, Germany

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	ГЗ-2017-2020
2	Federal Ministry of Education and Research	FKZ 03EK3548

Successful design of reversible oxygen electrocatalysts does not only require to consider their activity towards the oxygen reduction (ORR) and the oxygen evolution reactions (OER), but also their electrochemical stability at alternating ORR and OER operating conditions, which is important for potential applications in reversible electrolyzers/fuel cells or metal/air batteries. We show that the combination of catalyst materials containing stable ORR active sites with those containing stable OER active sites may result in a stable ORR/OER catalyst if each of the active components can satisfy the current demand of their respective reaction. We compare the ORR/OER performances of oxides of Mn (stable ORR active sites), Fe (stable OER active sites), and bimetallic Mn0.5Fe0.5 (reversible ORR/OER catalyst) supported on oxidized multi-walled carbon nanotubes. Despite the instability of Mn and Fe oxide for the OER and the ORR, respectively, Mn0.5Fe0.5 exhibits high stability for both reactions. © 2020, The Author(s).

Morales D.M. , Kazakova M.A. , Purcel M. , Masa J. , Schuhmann W.
The Sum is More than Its Parts: Stability of MnFe Oxide Nanoparticles Supported on Oxygen-Functionalized Multi-Walled Carbon Nanotubes at Alternating Oxygen Reduction Reaction and Oxygen Evolution Reaction Conditions

Journal of Solid State Electrochemistry. 2020. V.24. N11-12. P.2901–2906. DOI: 10.1007/s10008-020-04667-2 WOS Scopus РИНЦ AN OpenAlex

Full text from publisher

Submitted:	Apr 11, 2020
Accepted:	May 23, 2020
Published online:	Jun 1, 2020
Published print:	Nov 1, 2020

Web of science:	WOS:000537330500001
Scopus:	2-s2.0-85085897134
Elibrary:	45512743
Chemical Abstracts:	2020:1089819
OpenAlex:	W3033255209

DB	Citing
Scopus	11
Web of science	10
Elibrary	10
OpenAlex	11