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Article


Title

Anticorrosive performance of green deep eutectic solvent for electrochemical capacitor

Authors

[ 1 ] Instytut Chemii i Elektrochemii Technicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ 2 ] Politechnika Poznańska | [ P ] employee | [ S ] student

Scientific discipline (Law 2.0)

[6.5] Chemical sciences

Year of publication

2022

Published in

Chemical Engineering Journal

Journal year: 2022 | Journal volume: vol. 444

Article type

scientific article

Publication language

english

Keywords
EN
  • Reline
  • Deep eutectic solvents
  • Electrochemical capacitors
  • Corrosion
  • Current collectors
Abstract

EN Reline Deep Eutectic Solvent (DES) is widely recognized as a novel and green electrolyte for industrial applications due to its low cost and tolerance to moisture. It has received significant attention, however, its application in the energy storage system is still in infancy. Generally, aqueous-based electrochemical capacitors (ECs) present an ideal energy storage technology because of several advantages. Yet, high corrosion of the current collector limits their cyclability. Novel Reline DES electrolyte is studied and its anticorrosive electrochemical performance is evaluated in carbon-based ECs using stainless steel current collector (316L). Our findings show that Reline electrolyte and its water mixture display a strong inhibiting corrosion effect for 316L. Furthermore, a few aqueous electrolytes are studied to confirm the effectiveness of Reline DES as a green and anti-corrosive electrolyte for EC. Floating protocol is applied to monitor the stability of the EC performance in Reline and aqueous electrolytes. The devices using pure Reline and its water mixture exhibit higher electrochemical stability with good capacitive performance compared to 1 M Li2SO4 and 1 M KOH based ECs. The study may pave the way to practical Reline DES-based ECs for sustainable, highly stable, environmentally friendly and cost-effective energy storage systems in the future.

Date of online publication

26.04.2022

Pages (from - to)

136594-1 - 136594-14

DOI

10.1016/j.cej.2022.136594

URL

https://www.sciencedirect.com/science/article/pii/S1385894722020897?via%3Dihub

Comments

Article number: 136594

License type

CC BY-NC (attribution - noncommercial)

Open Access Text Version

final published version

Release date

26.04.2022

Date of Open Access to the publication

at the time of publication

Points of MNiSW / journal

200.0

Impact Factor

13.273 [List 2020]

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