A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Electrochemical Performance of a New Triazole Functionalized Ferrocene in Aqueous Redox Flow Batteries
Tekijät: Eken, Taha Yasin; Gonzalez, Gabriel; Peljo, Pekka; Koz, Gamze
Kustantaja: WILEY
Kustannuspaikka: HOBOKEN
Julkaisuvuosi: 2025
Journal: Applied Organometallic Chemistry
Tietokannassa oleva lehden nimi: APPLIED ORGANOMETALLIC CHEMISTRY
Lehden akronyymi: APPL ORGANOMET CHEM
Artikkelin numero: e7820
Vuosikerta: 39
Numero: 2
Sivujen määrä: 7
ISSN: 0268-2605
eISSN: 1099-0739
DOI: https://doi.org/10.1002/aoc.7820
Verkko-osoite: https://doi.org/10.1002/aoc.7820
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/458589461
A new 1,2,3-triazole functionalized ferrocene (1,2,3-TAFc) produced by Cu(I)-catalyzed click reaction was investigated as positive electrolyte for aqueous organic flow batteries (AOFBs). The molecule is highly soluble in 1 M hydrochloric acid and displays high electrochemical reversibility. 1,2,3-TAFc demonstrated good stability during cycling with a low capacity decay (0.011%/cyc, 3.0%/day) and high Coulombic efficiency (99.4%) over 280 cycles when tested in a flow battery at low concentration. This low capacity decay was attributed to the instability of ferrocene. These findings indicate that a stable and water-soluble catholyte for AOFBs can be obtained with structural modifications of 1,2,3-TAFc.A new type of ferrocene catholyte for AOFBs based on a 1,2,3-triazole moiety was introduced. 1,2,3-TAFc was prepared easily via click chemistry with a one-pot, two steps reaction sequence with 73% overall yield. The CV and flow battery experiments demonstrated the reversible and stable nature of the material. The cycling battery tests show a high stability of 1,2,3-TAFc in acidic electrolyte with low capacity decay (0.011%/cyc) and high Coulombic efficiency (99.4%).image
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Julkaisussa olevat rahoitustiedot:
We are grateful to the Bursa Technical University Scientific Research Fund (Project No. 231N002) for financial support. G. G. gratefully acknowledges the financial support from the University of Turku Graduate School. P. P. gratefully acknowledges the financial support from European Research Council Starting Grant (agreement no. 950038). This work partly utilized the Materials Research Infrastructure (MARI) at the University of Turku.
