Anchoring Single‐Atomic Metal Sites in Metalloporphyrin‐Based Covalent Organic Frameworks for Enhanced Photocatalytic Hydrogen Evolution

Abstract

AbstractA photoactive covalent organic framework (COF) was built from metalloporphyrin and bipyridine monomers and single‐atomic Pt sites were subsequently installed. Integrating photosensitizing metalloporphyrin and substrate‐activating Pt(bpy) moieties in a single solid facilitates multielectron transfer and accelerates photocatalytic hydrogen evolution with a maximum production rate of 80.4 mmol h−1 gPt−1 and turnover frequency (TOF) of 15.7 h−1 observed. This work demonstrates that incorporation of single‐atomic metal sites with photoactive COFs greatly enhances photocatalytic activity and provides an effective strategy for the design and construction of novel photocatalysts.