articleACS NanoJan 6, 2023Closed access

Ordered Mesoporous Carbon Grafted MXene Catalytic Heterostructure as Li-Ion Kinetic Pump toward High-Efficient Sulfur/Sulfide Conversions for Li–S Battery

XLXiang LiQGQinghua GuanZZZechao ZhuangYZYongzheng ZhangYLYuhang Lin

East China University of Science and Technology · State Key Laboratory of Chemical Engineering · +4 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

Lithium–sulfur (Li–S) batteries exhibit unparalleled theoretical capacity and energy density than conventional lithium ion batteries, but they are hindered by the dissatisfactory “shuttle effect” and the sluggish conversion kinetics owing to the low lithium ion transport kinetics, resulting in rapid capacity fading. Herein, a catalytic two-dimensional heterostructure composite is prepared by evenly grafting mesoporous carbon on the MXene nanosheet (denoted as OMC-g-MXene), serving as interfacial kinetic accelerators in Li–S batteries. In this design, the grafted mesoporous carbon in the heterostructure can not only prevent the stack of MXene nanosheets with the enhanced mechanical property but also offer a…

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11

Topics & keywords

Topics
Keywords
  • Materials science
  • Polysulfide
  • Mesoporous material
  • Electrolyte
  • Nanosheet
  • Chemical engineering
  • Lithium (medication)
  • Heterojunction
UN Sustainable Development Goals
  • Affordable and clean energy
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