Refereed journal article or data article (A1)

Sulfonate-Based Triazine Multiple-Electron Anolyte for Aqueous Organic Flow Batteries




List of AuthorsAsenjo-Pascual Juan, Wiberg Cedrik, Shahsavan Mahsa, Salmeron-Sanchez Ivan, Mauleon Pablo, Aviles Moreno Juan Ramon, Ocon Pilar, Peljo Pekka

PublisherAMER CHEMICAL SOC

Publication year2023

JournalACS Applied Materials and Interfaces

Journal name in sourceACS APPLIED MATERIALS & INTERFACES

Journal acronymACS APPL MATER INTER

Volume number15

Issue number30

Start page36242

End page36249

Number of pages8

ISSN1944-8244

eISSN1944-8252

DOIhttp://dx.doi.org/10.1021/acsami.3c05850

URLhttps://doi.org/10.1021/acsami.3c05850

Self-archived copy’s web addresshttps://research.utu.fi/converis/portal/detail/Publication/180691030


Abstract

A new highly soluble triazine derivative (SPr)34TpyTz showing three reversibleredox processes with fast kinetics and high diffusion coefficientshas been synthesized using an efficient, low-cost, and straightforwardsynthetic route. Concentrated single cell tests and DFT studies reveala tendency of the reduced triazine species to form aggregates whichcould be avoided by tuning the supporting electrolyte concentration.Under the right conditions, (SPr)34TpyTz shows no capacity decay and good Coulombic, voltage,and energy efficiencies for the storage of two electrons. The storageof further electrons leads to a higher capacity decay and an increaseof the electrolyte pH, suggesting the irreversible protonation ofthe generated species. So, a plausible mechanism has been proposed.A higher concentration of (SPr)34TpyTz shows slightly higher capacity decay and lowerefficiencies due to the aggregate formation.


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Last updated on 2023-05-09 at 07:31