Coupling functional anodes with natural air-diffused cathodes enables highly efficient hydrogen peroxide electrosynthesis

Electrosynthesis of hydrogen peroxide (H 2 O 2 ) is a decentralized production method with excellent application prospects. Coupling anodes with cathodes can achieve highly efficient electrosynthesis of hydrogen peroxide. In this study, we prepared an anode for H 2 O 2 electrosynthesis via the two-e...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of Zhejiang University. A. Science 2023-04, Vol.24 (4), p.377-386
Hauptverfasser: Ling, Chen, Liang, Aiping, Li, Chaolin, Wang, Wenhui
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Electrosynthesis of hydrogen peroxide (H 2 O 2 ) is a decentralized production method with excellent application prospects. Coupling anodes with cathodes can achieve highly efficient electrosynthesis of hydrogen peroxide. In this study, we prepared an anode for H 2 O 2 electrosynthesis via the two-electron water oxidation reaction (2e-WOR) by modifying carbon fiber paper with self-assembling monolayers. In addition, a natural air-diffused cathode loaded with polytetrafluoroethylene/carbon black using carbon cloth as substrate was prepared to combine with the modified anode to produce H 2 O 2 simultaneously. The total current efficiency of the anode and cathode reached 152.9%, and the H 2 O 2 production rate was as high as 38 µmol/min at 2.8 V vs. reversible hydrogen electrodes (RHE) in a Nafion 117 membrane-separated electrolyzer. This work reported a novel carbon-based 2e-WOR catalyst and laid a theoretical foundation for the simultaneous electrosynthesis of H 2 O 2 with an anode and cathode.
ISSN:1673-565X
1862-1775
DOI:10.1631/jzus.A2200566