Facile Synthesis of Hollow MoS2 Microspheres/Amorphous Carbon Composites and Their Lithium Storage Properties
2014
Abstract In this paper, we report a facile process to synthesize hollow MoS 2 microspheres/amorphous carbon composites (MACCs) by hydrothermal method and their improved electrochemical performance in Lithium ion batteries (LIBs). The composites prepared are characterized by XRD, SEM, HRTEM and EDS. MoS 2 nanosheets are uniformly grow on the surface of amorphous carbon. The interlayer-distance of the adjacent MoS 2 nanosheets in the composites is about 0.64 nm. As an electrode material for the LIBs, hollow MoS 2 MACCs exhibit excellent cyclic stability with 1147 mAhg −1 at 100 mAg −1 after 100 cycles, which displays more prominent performance than that of the hollow MoS 2 microspheres. Moreover, the reversible capacity for the hollow MoS 2 MACCs can be still maintain at 876 mAhg −1 at 1000 mAg −1 . The enhanced electrochemical performance of hollow MoS 2 MACCs could be attributed to their unique hollow structure, large specific surface area, the increased interlayer-distance and the synergistic effects between hollow MoS 2 microspheres and amorphous carbon.
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