Engineering Separated Dual O 2 Reduction Cores into One Polymer Framework for Boosting Hydrogen Peroxide Production

作者：Mengmeng Fu, Jialun He, Yingguo Li, Jiacheng Liu, Chensheng Wang, Jiayi Lu, Chaoyang Ma, Danfeng Jiang, Xiao Chen, Chao Yu · 发表于：Advanced Science · 年份：2025 · DOI：10.1002/advs.202508553 · 被引用次数：6 · 研究领域：Covalent Organic Framework Applications、Advanced Photocatalysis Techniques、Perovskite Materials and Applications

Abstract Photocatalytic hydrogen peroxide (H 2 O 2 ) production through the oxygen reduction reaction (ORR) pathway has emerged as a promising sustainable alternative. However, a significant challenge in this field lies in the development of highly efficient photocatalysts capable of achieving high‐concentration H 2 O 2 production. Here the rational design of two O 2 reduction cores into one polymer framework is showcased for synergistically facilitating H 2 O 2 production via the “self‐marketing & cooperation” strategy. Photoactive units of pyrrolo[3,2‐ b ] pyrrole and porphyrin are successfully settled in covalent organic polymers (COPs) through polycyclizations of the relevant aldehydes, anilines, and butane‐2,3‐dione. Two orderly separated active sites not only involve each of them in the oxygen reduction reaction but also mutually promote the production of H 2 O 2 , which is demonstrated by electron spin resonance experiments, in situ diffuse reflectance infrared Fourier transform spectroscopy, and a series of control experiments. Remarkably, PP‐COP‐ 4 delivers an outstanding H 2 O 2 concentration of 16.2 m M in a continuous‐flow system, demonstrating its strong potential for scalable, solar‐driven production of commercial‐grade H 2 O 2 .