Nanoscale reduction-site-selective oxygen regulation for promoting hydrogen peroxide production.

ABSTRACT: Solar-driven H₂O₂ production is a promising sustainable technology, yet its efficiency is hindered by a fundamental conflict. While the oxygen reduction reaction requires a high O₂ concentration, this very condition suppresses the water oxidation half-reaction. This trade-off is intrinsic to conventional photocatalysts, where both reaction centers are integrated on a single nanoparticle. Here we present a nano-assembly strategy that addresses this trade-off. We use a faceted photocatalyst to spatially segregate the sites for water oxidation and oxygen reduction. The reduction sites are selectively functionalized with zeolite nanovessels as O₂ traps. This design enhances the local O₂ concentration where needed, without suppressing the c

SUBMITTER: Zheng X 

PROVIDER: S-EPMC12783814 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature