【摘 要】
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Developing an efficient synthesis protocol to simultaneously control 2D nanomaterials'size and dispersion is the pivot to optimize their electrochemical perfor
【机 构】
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Key Laboratory for Ultrafine Materials of Ministry of Education,Shanghai Engineering Research Center
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Developing an efficient synthesis protocol to simultaneously control 2D nanomaterials\'size and dispersion is the pivot to optimize their electrochemical performance.Herein,we report the synthesis of uniform MoS2 nanocrystals well-anchored into the void space of porous carbon(donated as MoS2?C hybrids)by a simple confined reaction in metal-organic framework(MOF)during carbonization process.The strong confinement effect refrain MoS2 growth and aggregation,generating abundant active centers and edges,which contribute fast lithium/potassium reaction kinetics.In addition to the hybridization with the derived carbon,the MoS2?C hybrids exhibit rapid Li+transfer rate(~10-9 cm2 s-1)and greatly improved electronic conductivity.Consequently,the MoS2?C hybrids show ultrafast rate performances and satisfactory cycling stabilities as anode materials for both lithium and potassium ion batteries.This work demonstrates a universal tactic to achieve high dispersive 2D nanomaterials with tailorable particle size.
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