Acta Phys. -Chim. Sin. ›› 2017, Vol. 33 ›› Issue (4): 787-794.doi: 10.3866/PKU.WHXB201612152

• ARTICLE • Previous Articles     Next Articles

MoS2-C Composite as Negative Electrode Material for Sodium-Ion Supercapattery

Li-Ping ZHAO1,3,Wei-Shuai MENG1,Hong-Yu WANG2,Li QI2,*()   

  1. 1 College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, Liaoning Province, P. R. China
    2 State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
    3 College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
  • Received:2016-10-18 Published:2017-03-23
  • Contact: Li QI E-mail:qil@ciac.ac.cn
  • Supported by:
    the National Natural Science Foundation of China(21571173);Talent Scientific Research Fund of Liaoning Shihua University, China(2016XJJ-020)

Abstract:

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.

Key words: Molybdenum disulfide, Activated carbon, Sodium-ion, Negative electrode material, Supercapattery

MSC2000: 

  • O646