Electrochimica Acta, volume 428, pages 140923
AMn2 O4 spinels (A - Li, Mg, Mn, Cd) as ORR catalysts: The role of Mn coordination and oxidation state in the catalytic activity and their propensity to degradation
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Institut de Chimie et Procédés pour l’Énergie, l'Environnement et la Santé, UMR 7515 du CNRS-ECPM, 25 rue Becquerel, Strasbourg 67087, France
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Publication type: Journal Article
Publication date: 2022-10-01
General Chemical Engineering
Electrochemistry
Abstract
Using the rotating disk electrode (RDE) and cyclic voltammetry (CV) techniques, we studied electrochemical behavior, including activity in the oxygen reduction reaction (ORR) in an alkaline solution, of different AMn 2 O 4 ( A =Mn(II), Mg(II), Li(I) and Cd(II)) oxides with the spinel structure. With the help of postmortem XPS characterization we demonstrate that the surface of the studied spinels (except for MgMn 2 O 4 ) undergoes essential modification not only under potential cycling but also after contacting alkaline solution under open circuit conditions, and even during the electrode preparation. The widely studied Mn 3 O 4 spinel demonstrates the strongest surface modifications due to the presence of easily oxidizable and unstable Mn(II). The results of this work are of importance for the field of electrocatalysis and emphasize significant influence of degradation processes occurring at the surface and in the near-surface layers of materials on their electrochemical characteristics.
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Angewandte Chemie
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2 publications, 28.57%
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Angewandte Chemie - International Edition
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Angewandte Chemie - International Edition
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Journal of Materials Research
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Journal of Materials Research
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Energy Reports
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1 publication, 14.29%
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Applied Nanoscience (Switzerland)
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Applied Nanoscience (Switzerland)
1 publication, 14.29%
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Citations by publishers
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4
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Wiley
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Wiley
4 publications, 57.14%
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Cambridge University Press
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Cambridge University Press
1 publication, 14.29%
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Elsevier
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Elsevier
1 publication, 14.29%
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Springer Nature
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Springer Nature
1 publication, 14.29%
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- We do not take into account publications that without a DOI.
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- Statistics recalculated weekly.
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Dosaev K. et al. AMn2O4 spinels (A - Li, Mg, Mn, Cd) as ORR catalysts: The role of Mn coordination and oxidation state in the catalytic activity and their propensity to degradation // Electrochimica Acta. 2022. Vol. 428. p. 140923.
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Dosaev K., Istomin S., Strebkov D. A., Tsirlina G. A., Antipov E. V., Savinova E. R. AMn2O4 spinels (A - Li, Mg, Mn, Cd) as ORR catalysts: The role of Mn coordination and oxidation state in the catalytic activity and their propensity to degradation // Electrochimica Acta. 2022. Vol. 428. p. 140923.
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TY - JOUR
DO - 10.1016/j.electacta.2022.140923
UR - https://doi.org/10.1016%2Fj.electacta.2022.140923
TI - AMn2O4 spinels (A - Li, Mg, Mn, Cd) as ORR catalysts: The role of Mn coordination and oxidation state in the catalytic activity and their propensity to degradation
T2 - Electrochimica Acta
AU - Dosaev, Kirill
AU - Istomin, S.Ya.
AU - Strebkov, D A
AU - Tsirlina, Galina A
AU - Antipov, Evgeny V.
AU - Savinova, Elena R.
PY - 2022
DA - 2022/10/01 00:00:00
PB - Elsevier
SP - 140923
VL - 428
SN - 0013-4686
ER -
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@article{2022_Dosaev,
author = {Kirill Dosaev and S.Ya. Istomin and D A Strebkov and Galina A Tsirlina and Evgeny V. Antipov and Elena R. Savinova},
title = {AMn2O4 spinels (A - Li, Mg, Mn, Cd) as ORR catalysts: The role of Mn coordination and oxidation state in the catalytic activity and their propensity to degradation},
journal = {Electrochimica Acta},
year = {2022},
volume = {428},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016%2Fj.electacta.2022.140923},
pages = {140923},
doi = {10.1016/j.electacta.2022.140923}
}