ZIF-Mediated Anchoring of Co species on N-doped Carbon Nanorods as an Efficient Cathode Catalyst for Zn-Air Batteries

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外文摘要：Developing efficient oxygen reduction reaction(ORR)catalyst is essential for the practical application of Zn-air batteries(ZABs).In this contribution,we develop a novel zeolitic imidazolate framework(ZIF)-mediated strategy to anchor Co species on N-doped carbon nanorods for efficient ORR.Featuring ultrahigh N-doping(10.29 at.％),monodisperse Co nanocrystal decoration,and well-dispersed Co-Nx functionalization,the obtained Co-decorated N-doped carbon nanorods(Co@NCNR)exhibit a decent ORR performance comparable to commercial Pt/C in alkaline media.Aqueous ZABs have been assembled using Co@NCNR as the cathode catalyst.The assembled ZABs manifest high initial open-circuit voltage as well as high energy density.In addition,the Co@NCNR also demonstrates ideal ORR performance in quasi-solid-state ZABs.

外文关键词：

Co nanocrystalsCo-NxN-doped carbonoxygen reduction reactionZn-air battery

作者：

Qiang Yu、Jianshuai Lv、Jiantao Li、Ruohan Yu、Jinsong Wu、Shibo Xi、Xinyuan Li、Nuo Xu、Liang Zhou、Liqiang Mai

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作者单位：

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China

Qingdao National Laboratory for Marine Science and Technology,Qingdao 266237,China

Nanostructure Research Centre,Wuhan University of Technologyy,Wuhan 430070,China

Institute of Chemical and Engineering Sciences,A*STAR(Agency for Science,Technology and Research),Singapore 627833,Singapore

School of Science,Wuhan University of Technology,Wuhan 430070,China

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基金：

国家自然科学基金国家重点研发计划Shenzhen Fundamental Research ProgramNanostructure Research Center(NRC)中央高校基本科研业务费专项

项目编号：

520722832020YFA0715000JCYJ201908091144093972021III016GX

出版年：

2023

DOI：

10.1002/eem2.12389

能源与环境材料(英文)

CSCD

ISSN：

年,卷(期)：2023.6(3)

参考文献量41