Facile Microwave Synthesis of Kilogram‐Scale Electrocatalysts with Nanocarbons Bridged Cobalt Active Sites for Enhanced Oxygen Electrocatalysis

Abstract Oxygen reductions and evolution reactions (ORR/OER) are pivotal electrochemical processes in fuel cells and metal‐air batteries, yet the rapid, large‐scale production of efficient ORR/OER electrocatalysts remains challenging. Herein, a groundbreaking microwave‐synthesis strategy is presented that enables the rapid and facile preparation of kilogram‐scale ORR/OER electrocatalysts. The unique microwave irradiation generates instantaneous thermal energy, facilitating the formation of nano‐carbon bridges that interconnect high‐density active sites comprising cobalt single atoms and nanoparticles. This innovative architectural configuration significantly enhances the kinetics of electron/mass transfer and…

• NS
  Natural Science Foundation for Distinguished Young Scholars of Anhui Province

  Award: 2308085J16
• NN
  National Natural Science Foundation of China

  Awards: 22405161, 22479001, 22209063, 22475003
• CP
  China Postdoctoral Science Foundation

  Award: 2024M763200
• SU
  Shenzhen University
• NK
  National Key Research and Development Program of China

  Awards: 2024YFB4105700, 2024YFF0727400