Electrochemically synthesized H₂O₂ at industrial-level current densities enabled by in situ fabricated few-layer boron nanosheets.

ABSTRACT: Carbon nanomaterials show outstanding promise as electrocatalysts for hydrogen peroxide (H₂O₂) synthesis via the two-electron oxygen reduction reaction. However, carbon-based electrocatalysts that are capable of generating H₂O₂ at industrial-level current densities (>300 mA cm^-2) with high selectivity and long-term stability remain to be discovered. Herein, few-layer boron nanosheets are in-situ introduced into a porous carbon matrix, creating a metal-free electrocatalyst (B_n-C) with H₂O₂ production rates of industrial relevance in neutral or alkaline media. B_n-C maintained > 95% Faradaic efficiency during a 140-hour test at 300 mA cm^-2 and 0.1 V vs. RHE, and delivered a mass activ

SUBMITTER: Wu Y 

PROVIDER: S-EPMC11685507 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature