Abstract
Molybdenum disulfide (MoS2) is prepared by a facile sulfidation method using molybdenum-based metal-organic framework (Mo-MOF) as sacrificial templates at different temperatures (300 °C, 400 °C, 600 °C and 800 °C). The as-prepared MoS2 has a high reversible specific capacity for sodium-ion batteries (SIBs). Among that four samples, the anode material MoS2 synthesized at 400 °C has a stable structure and the superior electrochemical performance. The average discharge capacities of the MoS2/C-400 °C electrode are 910, 810, 670, 620 and 535 mAh g−1 at different current densities of 0.1, 0.2, 0.5, 1.0 and 2.0 A g−1, respectively. Remarkably, when the current density returns to 0.1A g−1, the reversible capacity still can maintain at 870 mAh g−1. Moreover, even at a large current density of 0.5A g−1, the specific capacity of MoS2/C-400 °C electrode also can retain at about 500 mAh g−1 after 150 cycles.
Published Version
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