Electrochemical Performance of a New Triazole Functionalized Ferrocene in Aqueous Redox Flow Batteries

dc.authorid0000-0003-3276-1413
dc.authorid0009-0000-2664-6377
dc.contributor.authorEken, Taha Yasin
dc.contributor.authorGonzalez, Gabriel
dc.contributor.authorPeljo, Pekka
dc.contributor.authorKoz, Gamze
dc.date.accessioned2026-02-08T15:14:44Z
dc.date.available2026-02-08T15:14:44Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractA 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
dc.description.sponsorshipTurun Yliopisto [231N002]; Bursa Technical University Scientific Research Fund; University of Turku Graduate School [950038]; European Research Council Starting Grant; University of Turku
dc.description.sponsorshipWe 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.
dc.identifier.doi10.1002/aoc.7820
dc.identifier.issn0268-2605
dc.identifier.issn1099-0739
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85205790660
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1002/aoc.7820
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5405
dc.identifier.volume39
dc.identifier.wosWOS:001329528700001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofApplied Organometallic Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzWOS_KA_20260207
dc.subject1,2,3-triazole
dc.subjectclick chemistry
dc.subjectelectrochemistry
dc.subjectferrocene
dc.subjectredox flow battery
dc.titleElectrochemical Performance of a New Triazole Functionalized Ferrocene in Aqueous Redox Flow Batteries
dc.typeArticle

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