2026-04-17T23:13:55Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/93222024-07-02T00:05:27Zcom_10259_3593com_10259_5086com_10259_2604com_10259_5822col_10259_3594col_10259_5823

Rubio Presa, Rubén Lubián Hernando, Lara Borlaf Pinar, Mario Ventosa Arbaizar, Edgar Sanz Díez, Roberto 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. 2024-07-01 2024-07-01 2023-02-07 info:eu-repo/semantics/article 2639-4979 http://hdl.handle.net/10259/9322 10.1021/acsmaterialslett.2c01105 2639-4979 eng ACS Materials Letters. 2023, V. 5, n. 3, p. 798-802 https://doi.org/10.1021/acsmaterialslett.2c01105 http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Atribución 4.0 Internacional ACS Publications