Stable acidic H2O2 electrosynthesis via in situ Ti-N bridging sites
Abstract
Acidic hydrogen peroxide electrosynthesis faces catalyst instability issues. We develop MIL-125@Ppy catalyst, achieving a high H2O2 electrosynthesis yield rate of 69.5 mol gcat−1 h−1 (Faradaic efficiency of 82.2%) at pH = 1 for more than 50 hrs. Spectroscopic evidence confirms *OOH key mediate stabilization by in situ formed Ti-N bridge sites enables the selective and stable two-electron pathway
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