Citation: ZHAO Li-Ping, MENG Wei-Shuai, WANG Hong-Yu, QI Li. MoS2-C Composite as Negative Electrode Material for Sodium-Ion Supercapattery[J]. Acta Physico-Chimica Sinica, ;2017, 33(4): 787-794. doi: 10.3866/PKU.WHXB201612152
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Amolybdenum disulfide-carbon composite (MoS2-C) was prepared by a hydrothermal method. Xray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and N2 adsorption-desorption tests were employed to characterize the physical properties of the composite. The charge storage mechanism of the MoS2-C was also investigated. The MoS2-C can be used as the negative electrode for supercapatteries using Na+-based organic electrolytes. A supercapattery of MoS2-C/AC (activated carbon) was constructed and its electrochemical performance was studied. The fabricated supercapattery exhibited relatively high energy density and power density. It also showed high cycle stability, displaying a 96% capacity retention after 1000 cycles.
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