Molecular Level Modulation of Anthraquinone‐containing Resorcinol‐formaldehyde Resin Photocatalysts for H ₂ O ₂ Production with Exceeding 1.2 % Efficiency

Designing polymeric photocatalysts at the molecular level to modulate photogenerated charge behavior is a promising and challenging strategy for efficient hydrogen peroxide (H2O2) photosynthesis. Here, we introduce electron-deficient 1,4-dihydroxyanthraquinone (DHAQ) into framework of resorcinol-formaldehyde (RF) resin, which modulates donor/acceptor ratio from perspective design promoting separation. Interestingly, H2O2 can be produced via oxygen reduction water oxidation pathways, verified by isotopic labeling in situ characterization techniques. Density functional theory (DFT) calculations elucidate that DHAQ reduce energy barrier production. RF-DHAQ exhibits excellent overall photosynthesis with solar-to-chemical conversion (SCC) efficiency exceeding 1.2 %. This work opens new avenue high-efficiency artificial