NiCoO2@CMK-3 composite with nanosheets-mesoporous structure as an efficient oxygen reduction catalyst

A novel NiCoO2@CMK-3 composite with nanosheets-shaped hierarchical structure was synthesized via a facile hydrothermal method. The as-prepared NiCoO2@CMK-3 composite exhibits comparable ORR electrocatalytic activity and better methanol-tolerance and electrochemical stability to the commercial Pt/C catalyst. The outstanding performance confirms the NiCoO2@CMK-3 composite as a promising efficient ORR catalyst in fuel cells and metal-air batteries.402