Facile Synthesis of MOF‐derived Mn₃O₄@N‐doped Carbon with Efficient Oxygen Reduction

Abstract

Integration of MnO x into the carbon matrix proves a viable strategy to improve the electrochemical performance of MnO x materials. Mn 3 O 4 nanoparticle‐decorated N‐doped carbon composites (Mn 3 O 4 @N‐doped carbon) were facilely prepared from a non‐porous eight‐fold interpenetrated Zn II ‐based MOF, which involves first synthesis of bimetallic Mn/Zn‐MOF in one‐pot reaction followed by direct pyrolysis at 1000 °C. In 0.1 m KOH solution, the optimal Mn 3 O 4 @N‐doped carbon exhibits decent oxygen reduction activity with the onset potential ( E onset ) of 0.94 V (vs. RHE) and half‐wave potential ( E 1/2 ) of 0.81 V (vs. RHE), excellent methanol tolerance as well as good durability.