物理化学学报 >> 2017, Vol. 33 >> Issue (4): 787-794.doi: 10.3866/PKU.WHXB201612152

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二硫化钼-碳复合材料用作钠离子电容电池负极材料

赵立平1,3,孟未帅1,王宏宇2,齐力2,*()   

  1. 1 辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001
    2 中国科学院长春应用化学研究所,电分析国家重点实验室,长春130022
    3 东北师范大学化学学院,长春130024
  • 收稿日期:2016-10-18 发布日期:2017-03-23
  • 通讯作者: 齐力 E-mail:qil@ciac.ac.cn
  • 基金资助:
    国家自然科学基金(21571173);辽宁石油化工大学引进人才科研启动基金资助项目(2016XJJ-020)

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)

摘要:

采用水热方法合成了二硫化钼-碳复合材料(MoS2-C)。使用X射线衍射,扫描电子显微镜,透射电子显微镜,氮气吸-脱附和热重分析等手段对材料进行了物性表征。研究了MoS2-C储钠机理,将其用作有机系钠离子电容电池负极材料,组装了MoS2-C/AC电容电池,研究了电容电池的电化学性能。测试结果显示电容电池具有较高比能量和比功率,也表现出了较好的循环稳定性,经1000次循环后容量保持率高达96%。

关键词: 二硫化钼, 活性炭, 钠离子, 负极材料, 电容电池

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