Progresses and Prospects of Asymmetrically Coordinated Single Atom Catalysts for Lithium-Sulfur Batteries

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外文摘要：Lithium-sulfur batteries(LSBs)are widely regarded as promising next-generation batteries due to their high theoretical specific capacity and low material cost.However,the practical applications of LSBs are limited by the shuttle effect of lithium polysulfides(LiPSs),electronic insulation of charge and discharge products,and slow LiPSs conversion reaction kinetics.Accordingly,the introduction of catalysts into LSBs is one of the effective strategy to solve the issues of the sluggished LiPS conversion.Because of their nearly 100％atom utilization and high electrocatalytic activity,single-atom catalysts(SACs)have been widely used as reaction mediators for LSBs'reactions.Excitingly,the SACs with asymmetric coordination structures have exhibited intriguing electronic structures and superior catalytic activities when compared to the traditional M-N4 active sites.In this review,we systematically describe the recent advancements in the installation of asymmetrically coordinated single-atom structure as reactions catalysts in LSBs,including asymmetrically nitrogen coordinated SACs,heteroatom coordinated SACs,support effective asymmetrically coordinated SACs,and bimetallic coordinated SACs.Particularly noteworthy is the discussion of the catalytic conversion mechanism of LiPSs spanning asymmetrically coordinated SACs.Finally,a perspective on the future developments of asymmetrically coordinated SACs in LSB applications is provided.

外文关键词：

asymmetrical coordinationconversion catalysisLi-S batteriesshuttle effectsingle atom catalysts

作者：

Rong Zhou、Shaonan Gu、Meng Guo、Shuzheng Xu、Guowei Zhou

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作者单位：

Key Laboratory of Fine Chemicals in Universities of Shandong,Jinan Engineering Laboratory for Multi-scale Functional Materials,School of Chemistry and Chemical Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaScience,Education and Industry Integration of Basic Research Projects of Qilu University of TechnologyScience,Education and Industry Integration of Basic Research Projects of Qilu University of TechnologyScience,Education and Industry Integration of Basic Research Projects of Qilu University of Technology

项目编号：

22108133519721802022PY0622023PY0342023PY022

出版年：

2024

DOI：

10.1002/eem2.12703

能源与环境材料(英文)

ISSN：

年,卷(期)：2024.7(4)