材料科学
剥脱关节
石墨烯
二硫化钼
锂(药物)
石墨
复合材料
超声
电化学
化学工程
纳米技术
电极
化学
医学
工程类
内分泌学
物理化学
作者
Hong Liu,Lei Liu,Min Yi,Zhigang Shen,Shuaishuai Liang,Xiaojing Zhang,Shu‐Lin Ma
标识
DOI:10.1016/j.cej.2016.11.094
摘要
Improving the rate capability and cycle stability of two-dimensional molybdenum disulfide (MoS2) still holds the key to its application in lithium-ion batteries (LIBs). Here we reported liquid-exfoliated MoS2 nanosheets/graphene composites (MoS2/Gra) towards the high capacity and excellent cycle stability for LIBs. The composites were assembled by pristine graphene and MoS2 nanosheets, which were prepared via the sonication-assisted liquid exfoliation of pristine graphite and MoS2 powders in aqueous surfactant solutions. The composites exhibited the reversible capacity as high as 1145 mAh g−1 after 175 cycles at 100 mA g−1 and excellent rate capability by retaining ∼88% of the capacity at 2000 mA g−1. It is the first time that liquid-exfoliated MoS2/Gra composites show so excellent electrochemical performances and thus are fascinating for LIBs due to the facile, cost-effective and scalable liquid exfoliation route.
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