在Co-N-C催化剂中掺入sp-N调制电子性能以提高锌空气电池的性能。

IF 8.2 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
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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引用次数: 0

摘要

石墨炔(GDY)产生的sp杂化氮加入催化剂结构中,通过调节活性位点的电子性质,显著提高锌空气电池的电催化效率,从而加快反应动力学,提高电导率。这项工作强调了Co-N-GDY催化剂的功效,其中GDY中的sp-N部分作为钴物质的锚定中心,在氧还原反应中表现出优异的性能,实现了0.85 V的半波电位,以及超过商用Pt/C + iro2基电池的高析氧反应性能。Co-N-GDY催化剂还表现出良好的循环稳定性,电压差波动极小,表明其适合于先进储能系统的实际应用。这些发现强调了开发具有成本效益和耐用的M-N-C催化剂的重要性,以提高锌空气电池技术的商业可行性和可持续性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Modulating Electronic Properties with sp-N Incorporation in Co–N–C Catalyst for Enhanced Performance in Zinc–Air Batteries

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.

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来源期刊
ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces 工程技术-材料科学:综合
CiteScore
16.00
自引率
6.30%
发文量
4978
审稿时长
1.8 months
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.
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