Nonprecious Bimetallic Sites Coordinated on N‐Doped Carbons with Efficient and Durable Catalytic Activity for Oxygen Reduction

Developing efficient, inexpensive, and durable electrocatalysts for the oxygen reduction reaction (ORR) is important for the large‐scale commercialization of fuel cells and metal–air batteries. Herein, a hierarchically porous bimetallic Fe/Co single‐atom‐coordinated N‐doped carbon (Fe/Co‐N x ‐C) electrocatalyst for ORR is synthesized from Fe/Co‐coordinated polyporphyrin using silica template‐assisted and silica‐protection synthetic strategies....