Carbon, volume 176, pages 632-641
On the catalytic and degradative role of oxygen-containing groups on carbon electrode in non-aqueous ORR
Tarasov Artem V.
2
,
Kataev Elmar Yu
3
,
Amati Matteo
,
Gregoratti Luca
,
Ševčíková Klára
4
,
Dieste Virginia Pérez
5
,
Escudero Carlos
5
,
Fedorov Alexander
,
Usachov D. Yu.
2
,
Itkis Daniil M.
,
Yashina Lada V
,
Shao-Horn Yang
,
Vyalikh Denis V
,
Amati M.
4
,
Gregoratti Luca
4
,
Fedorov Alexander
6
,
Vyalikh Denis
7, 8
,
Shao-Horn Yang
9
,
Itkis Daniil
1
,
3
Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, Erlangen, 91058, Germany
|
4
Elettra-Sincrotrone Trieste S.C.p.A, in Area Science Park, Strada Statale 14, Km 163.5, Basovizza (Trieste), 34149, Italy
|
7
Publication type: Journal Article
Publication date: 2021-05-01
General Chemistry
General Materials Science
Abstract
Abstract Oxygen reduction reaction (ORR) is a crucial process that drives the operation of several energy storage devices. ORR can proceed on the neat carbon surface in the absence of a catalyst, and its electrochemical activity is determined by its microstructure and chemical composition. Oxygen functional groups unavoidably existing on the carbon surface can serve as adsorption sites for ORR intermediates; the presence of some oxygen functionalities gives rise to an increase in the density of electronic states (DOS) at the Fermi level (FL). Both factors should have a positive impact on the electron transfer rate that was demonstrated for ORR in aqueous media. To study the O-groups effect on the aprotic ORR, which is now of interest due to the extensive development of aprotic metal-air batteries, we use model oxidized carbon electrodes (HOPG and single-layer graphene). We demonstrate that oxygen functionalities (epoxy, carbonyl, and lactone) do not affect the rate of one-electron oxygen reduction in aprotic media in the absence of metal cations since their introduction practically does not increase DOS at FL. However, in Li+-containing electrolytes, oxygen groups enhance both the rate of second electron transfer and carbon degradation due to its oxidation by LiO2 yielding carbonate species.
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- We do not take into account publications that without a DOI.
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Inozemtseva A. I. et al. On the catalytic and degradative role of oxygen-containing groups on carbon electrode in non-aqueous ORR // Carbon. 2021. Vol. 176. pp. 632-641.
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Kataev E. Yu., Shao-Horn Y., Vyalikh D. V., Yashina L. V., Itkis D. M., Usachov D. Y., Tarasov A. V., Fedorov A., Escudero C., Dieste V. P., Ševčíková K., Gregoratti L., Amati M., Frolov A. S., Inozemtseva A. I., Amati M., Gregoratti L., Fedorov A., Vyalikh D., Shao-Horn Y., Itkis D., Yashina L. V. On the catalytic and degradative role of oxygen-containing groups on carbon electrode in non-aqueous ORR // Carbon. 2021. Vol. 176. pp. 632-641.
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TY - JOUR
DO - 10.1016/j.carbon.2020.12.008
UR - https://doi.org/10.1016%2Fj.carbon.2020.12.008
TI - On the catalytic and degradative role of oxygen-containing groups on carbon electrode in non-aqueous ORR
T2 - Carbon
AU - Inozemtseva, Alina I
AU - Kataev, Elmar Yu
AU - Frolov, Alexander S
AU - Amati, Matteo
AU - Gregoratti, Luca
AU - Ševčíková, Klára
AU - Dieste, Virginia Pérez
AU - Escudero, Carlos
AU - Fedorov, Alexander
AU - Tarasov, Artem V.
AU - Usachov, D. Yu.
AU - Itkis, Daniil M.
AU - Yashina, Lada V
AU - Vyalikh, Denis V
AU - Shao-Horn, Yang
AU - Amati, M.
AU - Gregoratti, Luca
AU - Fedorov, Alexander
AU - Vyalikh, Denis
AU - Shao-Horn, Yang
AU - Itkis, Daniil
AU - Yashina, Lada V.
PY - 2021
DA - 2021/05/01 00:00:00
PB - Elsevier
SP - 632-641
VL - 176
SN - 0008-6223
ER -
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@article{2021_Inozemtseva,
author = {Alina I Inozemtseva and Elmar Yu Kataev and Alexander S Frolov and Matteo Amati and Luca Gregoratti and Klára Ševčíková and Virginia Pérez Dieste and Carlos Escudero and Alexander Fedorov and Artem V. Tarasov and D. Yu. Usachov and Daniil M. Itkis and Lada V Yashina and Denis V Vyalikh and Yang Shao-Horn and M. Amati and Luca Gregoratti and Alexander Fedorov and Denis Vyalikh and Yang Shao-Horn and Daniil Itkis and Lada V. Yashina},
title = {On the catalytic and degradative role of oxygen-containing groups on carbon electrode in non-aqueous ORR},
journal = {Carbon},
year = {2021},
volume = {176},
publisher = {Elsevier},
month = {may},
url = {https://doi.org/10.1016%2Fj.carbon.2020.12.008},
pages = {632--641},
doi = {10.1016/j.carbon.2020.12.008}
}