Addressing Practical Use of Viologen-Derivatives in Redox Flow Batteries through Molecular Engineering.
ACS Mater Lett
; 5(3): 798-802, 2023 Mar 06.
Article
em En
| MEDLINE
| ID: mdl-36911231
ABSTRACT
In practical scenarios, viologen-derivatives face an accelerated degradation in the unavoidable presence of traces of oxygen in large-scale redox flow batteries. Herein, we confirm the primary degradation mechanism and propose a straightforward, cheap, and fast method to evaluate the stability of viologen-derivatives toward this degradation. Considering that the cleavage of the N-substituent is the main proposed pathway for viologen degradation, a new viologen-derivative, bearing an alkylsulfonate chain with a secondary carbon center joined to the N atom, is synthesized to illustrate how molecular engineering can be used to improve stability.
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Bases de dados:
MEDLINE
Idioma:
En
Revista:
ACS Mater Lett
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Espanha