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Abstract: electrosynthesis of hydrogen peroxide (H₂O₂) 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 H₂O₂ 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 H₂O₂ simultaneously. The total current efficiency of the anode and cathode reached 152.9%, and the H₂O₂ 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 H₂O₂ with an anode and cathode.

功能化阳极耦合自然空气扩散阴极高效电合成过氧化氢

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