Low overpotential selective H2O2 generation on carbonate-rich surface via two-electron water oxidation

Huimin Liu

doi:10.1016/j.jcat.2026.117107

Low overpotential selective H2O2 generation on carbonate-rich surface via two-electron water oxidation

2026-08-01

0

PRE

AI

H

Huimin Liu

C

Chengyu Duan

N

Ningchao Zheng

S

Siqi Ge

M

Mengdi Sun

Y

Yang Peng

G

Guanghui Luo

J

Jiating Chen

Y

Yuxin Wang

胡卓锋 (Zhuofeng Hu) *

DOI：10.1016/j.jcat.2026.117107

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Abstract

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• H2O2 production via 2e− WOR is achieved at an ultra-low overpotential of 150 mV. • A CaCO3 composite anode enables efficient H2O2 electrosynthesis in 0.03 M K2CO3. • 2e− WOR mechanism is driven by dynamic CO32– exchange and enrichment at anode. • Uses abundant CaCO3 to construct sustainable composite anodes for green H2O2 electrosynthesis.

Low overpotential selective H2O2 generation on carbonate-rich surface via two-electron water oxidation

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