• Cobalt sulphide/graphene aerogel nanocomposite with enhanced anode performance for lithium energy storage

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    • Keywords


      Cobalt sulphide; graphene aerogel; anode material; lithium energy storage.

    • Abstract


      Cobalt sulphide/graphene aerogel nanocomposite (CGA) is successfully fabricated via a one-pot hydrothermal approach aided with ethylenediamine. CoS nanoparticles constructed by nanoplates are uniformly anchored and well distributed on the loose graphene aerogel framework. Owing to a synergistic effect combining nanosized CoS with graphene aerogel advantages, CGA as an anode material for lithium energy storage exhibits high reversible capacity,superior long-cycle property and excellent high-rate capability. Prominently, CGA maintains a high capacity approaching $\sim$1100 mAh g$^{-1}$ after 200 cycles at 100 mA g$^{-1}$. Even at 1 A g$^{-1}$, CGA still delivers a capacity of 460 mAh g$^{-1}$. This approach can be readily applicable to prepare other graphene aerogel-based nanocomposites as anode materials.

    • Author Affiliations

    • Dates

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

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      Posted on July 25, 2019

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