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...
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Veröffentlicht in: | Journal of Zhejiang University. A. Science 2023-04, Vol.24 (4), p.377-386 |
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Format: | Artikel |
Sprache: | eng |
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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. |
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ISSN: | 1673-565X 1862-1775 |
DOI: | 10.1631/jzus.A2200566 |