Abstract
In this paper, MoS2/C3N4 composites are prepared using a simple hydrothermal method, with alterations made to the weight of the g-C3N4 precursor, to explore the influence of C3N4 amount on lithium storage ability and other properties such as morphological/structural change. The support of C3N4 enhances the electronic conductivity of MoS2 and reduces the volume change of MoS2 as it undergoes continuous charging and discharging. Besides, the good formation of MoS2/C3N4 heterostructure, which is generated by the appropriate addition of the precursors, supplies more active sites for Li+ and leads to faster ionic diffusion rate and electronic transfer speed. Profiting from the above advantages, the MCN-100 could retain excellent reversible capacity of 533.2 mAh/g even under ultrahigh current of 5 A/g after 100 cycles and exhibited superior rate performance of 1414.4 mAh/g at 1 A/g.
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