Redox-Active Aqueous Microgels for Energy Storage Applications
Elena Kozhunova
1
,
Natalia A Gvozdik
2
,
Mikhail V Motyakin
3, 4
,
Oxana V Vyshivannaya
5
,
Daniil Itkis
3, 6
,
1
Publication type: Journal Article
Publication date: 2020-12-09
scimago Q1
wos Q1
SJR: 1.394
CiteScore: 8.7
Impact factor: 4.6
ISSN: 19487185
PubMed ID:
33295771
Physical and Theoretical Chemistry
General Materials Science
Abstract
The search for new environmental-friendly materials for energy storage is ongoing. In the presented paper, we propose polymer microgels as a new class of redox-active colloids (RACs). The microgel stable colloids are perspective low-viscosity fluids for advanced flow batteries with high volumetric energy density. In this research, we describe the procedure for the anchoring of 4-amino-2,2,6,6-tetramethylpiperidine-1-oxyl (4-amino-TEMPO) redox-active sites to the polymeric chains of water-soluble microgels based on poly(N-isopropylacrylamide)-poly(acrylic acid) interpenetrating networks. Using cyclic voltammetry and EPR spectroscopy, we show that ca. 14% of 4-amino-TEMPO groups retain electroactive properties and demonstrate the reversible redox response. It allows achieving a stable capacity of 2.5 mAh/g, enabling the low-viscous catholyte with a capacity of more than 100 mAh/L.
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17
Total citations:
17
Citations from 2024:
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(41%)
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GOST
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Kozhunova E. et al. Redox-Active Aqueous Microgels for Energy Storage Applications // Journal of Physical Chemistry Letters. 2020. Vol. 11. No. 24. pp. 10561-10565.
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Kozhunova E., Gvozdik N. A., Motyakin M. V., Vyshivannaya O. V., Stevenson K. J., Itkis D., Chertovich A. V. Redox-Active Aqueous Microgels for Energy Storage Applications // Journal of Physical Chemistry Letters. 2020. Vol. 11. No. 24. pp. 10561-10565.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1021/acs.jpclett.0c03164
UR - https://doi.org/10.1021/acs.jpclett.0c03164
TI - Redox-Active Aqueous Microgels for Energy Storage Applications
T2 - Journal of Physical Chemistry Letters
AU - Kozhunova, Elena
AU - Gvozdik, Natalia A
AU - Motyakin, Mikhail V
AU - Vyshivannaya, Oxana V
AU - Stevenson, Keith J
AU - Itkis, Daniil
AU - Chertovich, Alexander V.
PY - 2020
DA - 2020/12/09
PB - American Chemical Society (ACS)
SP - 10561-10565
IS - 24
VL - 11
PMID - 33295771
SN - 1948-7185
ER -
Cite this
BibTex (up to 50 authors)
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@article{2020_Kozhunova,
author = {Elena Kozhunova and Natalia A Gvozdik and Mikhail V Motyakin and Oxana V Vyshivannaya and Keith J Stevenson and Daniil Itkis and Alexander V. Chertovich},
title = {Redox-Active Aqueous Microgels for Energy Storage Applications},
journal = {Journal of Physical Chemistry Letters},
year = {2020},
volume = {11},
publisher = {American Chemical Society (ACS)},
month = {dec},
url = {https://doi.org/10.1021/acs.jpclett.0c03164},
number = {24},
pages = {10561--10565},
doi = {10.1021/acs.jpclett.0c03164}
}
Cite this
MLA
Copy
Kozhunova, Elena, et al. “Redox-Active Aqueous Microgels for Energy Storage Applications.” Journal of Physical Chemistry Letters, vol. 11, no. 24, Dec. 2020, pp. 10561-10565. https://doi.org/10.1021/acs.jpclett.0c03164.