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Applied surface science v.433, 2018년, pp.10 - 15   SCI SCIE
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MnS decorated N/S codoped 3D graphene which used as cathode of the lithium-sulfur battery

Li, Zhongtao (State Key Laboratory of Heavy Oil Processing, School of Chemical Engineering, China University of Petroleum, Qingdao 266580, China ) ; Xu, Rongfei (State Key Laboratory of Heavy Oil Processing, School of Chemical Engineering, China University of Petroleum, Qingdao 266580, China ) ; Deng, Shenzhen (State Key Laboratory of Heavy Oil Processing, School of Chemical Engineering, China University of Petroleum, Qingdao 266580, China ) ; Su, Xin (State Key Laboratory of Heavy Oil Processing, School of Chemical Engineering, China University of Petroleum, Qingdao 266580, China ) ; Wu, Wenting (State Key Laboratory of Heavy Oil Processing, School of Chemical Engineering, China University of Petroleum, Qingdao 266580, China ) ; Liu, Shuiping (State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University, Shanghai 201620, China ) ; Wu, Mingbo (State Key Laboratory of Heavy Oil Processing, School of Chemical Engineering, China University of Petroleum, Qingdao 266580, China ) ;
  • 초록  

    Abstract A scale-upable MnS nanocrystal decorated N/S codoped graphene nanocomposite (MNSG) for Li-S batteries has been readily synthesized through hydrothermal process and followed by thermal treatment under N 2 . Sulfur is loaded into nanohybrid to produce an outstanding Li-S battery cathode through integrating the advantages and avoiding the disadvantages of graphene and MnS. The optimized cathode can deliver a higher capacity of 756mAhg −1 at 0.5C (1C=1675mAg −1 ) after 200 cycles and can retain 73% of the initial capacity, which indicates a potential applicable cathode material for lithium-sulfur batteries. Highlights The conductive nanohybrids are composed of N/S codoped graphene and MnS. Graphene improves the conductivity and MnS suppresses the shuttle effect. Great electrochemical properties as cathode of Li-S battery. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    N/S codoped graphene .   MnS .   Lithium-sulfur batteries.  

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