Hydrothermal exfoliated molybdenum disulfide nanosheets as anode material for lithium ion batteries

Ultrathin MoS₂ nanosheets were prepared in high yield using a facile and effective hydrothermal intercalation and exfoliation route. The products were characterized in detail using X-ray diffraction, scanning electron microscopy, transmission electron microscopy and Raman spectroscopy. The results show that the high yield of MoS₂ nanosheets with good quality was successfully achieved and the dimensions of the immense nanosheets reached 1 μm–2 μm. As anode material for Li-ion batteries, the as-prepared MoS₂ nanosheets electrodes exhibited a good initial capacity of 1190 mAh·g⁻¹ and excellent cyclic stability at constant current density of 50 mA·g⁻¹. After 50 cycles, it still delivered reversibly sustained high capacities of 750 mAh·g⁻¹.