Leveraging phenazine and dihydrophenazine redox dynamics in conjugated microporous polymers for high-efficiency overall photosynthesis of hydrogen peroxide.

ABSTRACT: Harnessing solar energy for hydrogen peroxide (H2O2) production from water and oxygen is crucial for sustainable solar fuel generation. Conjugated microporous polymers (CMPs), with their vast structural versatility and extended π-conjugation, are promising photocatalysts for solar-driven H2O2 generation, though enhancing their efficiency is challenging. Inspired by the crucial role of phenazine derives in biological redox cycling and electron transfer processes, the redox-active phenazine moiety is rationally integrated into a CMP framework (TPE-PNZ). By leveraging the reversible redox dynamics between phenazine and dihydrophenazine, TPE-PNZ sets a new benchmark for H2O2 production among CMP-based photocatalysts, reaching a production rate of 5142 μmol g-1 h-1 and a solar-to-chemical conve

SUBMITTER: Feng S 

PROVIDER: S-EPMC11290433 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature