Synthesis and ORR Performance of COF-Driven N, O Double-Doped Metal-Free Catalysts

Abstract

Metal-free N, O double-dop catalysts play an important role in oxygen reduction reactions. However, there is no N, O double-doped metal-free oxygen reduction reactions (ORR) catalyst driven by COF. Herein, a novel metal-free electrocatalyst with N and O doped for oxygen reduction was prepared by JUC‑626 as a precursor and carbonized at high temperature under the protection of N₂ atmosphere, and its catalytic activity at different carbonization temperatures was explored. Among them, JUC-626-600 exhibits excellent oxygen reduction activity, and it exhibits a half-wave potential of up to 0.70 V at 0.1 M KOH. This work reveals the importance of NO heterogeneous catalysts with metal-free COF as precursors.