Shuai Wang, Yuqi Chen, Shuyan Zheng, Yanan Yuan, Kexin Du, Min Cui*, Yue Wu, Ping Li, Wei Hu, Jingui Wang, Yingshu Guo, Zexing Wu* and Yanli Zhao*,
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Modulating Electronic Properties with sp-N Incorporation in Co–N–C Catalyst for Enhanced Performance in Zinc–Air Batteries
The incorporation of sp-hybridized nitrogen arisen from graphdiyne (GDY) into the catalyst structure significantly improves the electrocatalytic efficiency of zinc–air batteries by modulating the electronic properties of the active sites, thereby accelerating reaction kinetics and enhancing conductivity. This work highlights the efficacy of the Co–N-GDY catalyst, where sp-N moieties in GDY serving as anchoring centers for cobalt species, which demonstrates exceptional performance in the oxygen reduction reaction, achieving a half-wave potential of 0.85 V, along with high oxygen evolution reaction performance that surpasses that of commercial Pt/C + IrO2-based batteries. The Co–N-GDY catalyst also exhibits commendable cycling stability with minimal fluctuation in voltage difference, indicating its suitability for practical applications in advanced energy storage systems. These findings underscore the importance of developing cost-effective and durable M–N–C catalysts to enhance the commercial viability and sustainability of zinc–air battery technology.
期刊介绍:
ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.