Main issues,such as slow reaction kinetics and diffusion of lithium polysulfides(LiPSs),pose serious threats to the next generation of high-energy lithium–sulfur(Li–S)batteries.In recent years,tungsten-based catalys...Main issues,such as slow reaction kinetics and diffusion of lithium polysulfides(LiPSs),pose serious threats to the next generation of high-energy lithium–sulfur(Li–S)batteries.In recent years,tungsten-based catalysts have been used to solve these problems.Tungsten's unique electronic structure makes it excellent in LiPS electrocatalytic applications.In particular,tungsten-oxy catalysts of the post-periodic table show stronger chemical and electronic structure regulation ability in electrocatalysis due to the wider valence state regulation interval(0–6).Based on this,tungsten-based nanomaterials can effectively achieve rapid conversion of LiPSs and inhibit the shuttle effect.Herein,the latest progress in tungsten-based catalysts for Li–S batteries was reviewed from the aspects of design idea,engineering strategy,and electrochemical performance.The catalytic mechanisms were discussed from the perspectives of atoms,energy bands,and hybrid orbitals.Finally,the challenges and future of this research field were prospected in detail.展开更多
基金supported by the National Natural Science Foundation of China(Nos.52207227 and 52202244)the Doctoral Research Initiation Foundation of Anhui Normal University(No.751973)+2 种基金the Natural Science Foundation of Jiangsu Province,China(No.BK20220540)China Postdoctoral Science Foundation(No.2024M751176)the Research Foundation for Advanced Talents of Jiangsu University,China(No.22JDG010)。
文摘Main issues,such as slow reaction kinetics and diffusion of lithium polysulfides(LiPSs),pose serious threats to the next generation of high-energy lithium–sulfur(Li–S)batteries.In recent years,tungsten-based catalysts have been used to solve these problems.Tungsten's unique electronic structure makes it excellent in LiPS electrocatalytic applications.In particular,tungsten-oxy catalysts of the post-periodic table show stronger chemical and electronic structure regulation ability in electrocatalysis due to the wider valence state regulation interval(0–6).Based on this,tungsten-based nanomaterials can effectively achieve rapid conversion of LiPSs and inhibit the shuttle effect.Herein,the latest progress in tungsten-based catalysts for Li–S batteries was reviewed from the aspects of design idea,engineering strategy,and electrochemical performance.The catalytic mechanisms were discussed from the perspectives of atoms,energy bands,and hybrid orbitals.Finally,the challenges and future of this research field were prospected in detail.
