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 ~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.
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This study was financially supported by Natural Science Foundation of China (Grant No. 21705060).
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Zhu, J., Zhao, Y., Ning, P. et al. Cobalt sulphide/graphene aerogel nanocomposite with enhanced anode performance for lithium energy storage. Bull Mater Sci 44, 4 (2021). https://doi.org/10.1007/s12034-020-02275-4
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DOI: https://doi.org/10.1007/s12034-020-02275-4