Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Abstract The artificial photosynthesis of hydrogen peroxide (H 2 O ) using semiconductor photocatalysts is gaining attention as an eco‐friendly and energy‐efficient method. Covalent organic frameworks (COFs) show great promise in enhancing photocatalytic H production due to their tunable structures functional diversity. However, the efficiency generation close photoelectric properties COFs microenvironment active sites. Herein, synthesis pyridyl‐imine‐functionalized (PyIm‐COFs) featuring donor–acceptor (D–A) moieties improve reported. By employing benzothiadiazole (BT) units with varied fluorine substitutions, electronic environment sites, optimizing selective two‐electron (2e − oxygen reduction reaction (ORR), tuned. Among synthesized COFs, PyIm‐BT_F exhibits highest activity, achieving a rate 5342 µmol g −1 h . importance D–A rational design COF‐based photocatalysts, providing novel strategy for sustainable through optimized site environments, underscored.

Язык: Английский