Atomically Dispersed Transition Metal-Nitrogen-Carbon Bifunctional Oxygen Electrocatalysts for Zinc-Air Batteries: Recent Advances and Future Perspectives

• Published in: Nano-micro letters Vol. 14; no. 1; p. 36
• Main Authors: Dong, Fang, Wu, Mingjie, Chen, Zhangsen, Liu, Xianhu, Zhang, Gaixia, Qiao, Jinli, Sun, Shuhui
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 01.12.2022; Springer Nature B.V; Springer Singapore; SpringerOpen
• Subjects: Atomically dispersed metal-nitrogen-carbon; Bifunctional oxygen electrocatalysts; Carbon; Catalysts; Catalytic activity; Dispersion; Electrocatalysts; Energy costs; Engineering; Flux density; Metal air batteries; Nanoscale Science and Technology; Nanotechnology; Nanotechnology and Microengineering; Nitrogen; Optimization; Oxygen evolution reaction (OER); Oxygen evolution reactions; Oxygen reduction reaction (ORR); Oxygen reduction reactions; Principles; Production costs; Rechargeable batteries; Review; Stability; Transition metals; Zinc; Zinc-air batteries (ZABs); Zinc-oxygen batteries; Zn–air batteries; Atomically dispersed metal-nitrogen-carbon; Bifunctional oxygen electrocatalysts; Zinc-air batteries (ZABs); Oxygen evolution reaction (OER); Oxygen reduction reaction (ORR)
• ISSN: 2311-6706; 2150-5551
• DOI: 10.1007/s40820-021-00768-3

Highlights General principles for designing atomically dispersed metal-nitrogen-carbon (M–N-C) are briefly reviewed. Strategies to enhance the bifunctional catalytic performance of atomically dispersed M–N-C are summarized. Challenges and perspectives of M–N-C bifunctional oxygen catalysts for Rechargeable zinc-air batteries are discussed. Rechargeable zinc-air batteries (ZABs) are currently receiving extensive attention because of their extremely high theoretical specific energy density, low manufacturing costs, and environmental friendliness. Exploring bifunctional catalysts with high activity and stability to overcome sluggish kinetics of oxygen reduction reaction and oxygen evolution reaction is critical for the development of rechargeable ZABs. Atomically dispersed metal-nitrogen-carbon (M-N-C) catalysts possessing prominent advantages of high metal atom utilization and electrocatalytic activity are promising candidates to promote oxygen electrocatalysis. In this work, general principles for designing atomically dispersed M-N-C are reviewed. Then, strategies aiming at enhancing the bifunctional catalytic activity and stability are presented. Finally, the challenges and perspectives of M-N-C bifunctional oxygen catalysts for ZABs are outlined. It is expected that this review will provide insights into the targeted optimization of atomically dispersed M-N-C catalysts in rechargeable ZABs.