Energy Storage Science and Technology ›› 2019, Vol. 8 ›› Issue (6): 1126-1131.doi: 10.12028/j.issn.2095-4239.2019.0072

Previous Articles     Next Articles

Elecrochemical performance of MXene/silver nanowire supercapacitor electrode material

MENG Qi, LIU Xiaohui, SUN Mingze, WANG Qiyang, BI Hong   

  1. School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, Anhui, China
  • Received:2019-04-28 Revised:2019-05-29 Online:2019-11-01 Published:2019-05-29

Abstract: MXene with large specific surface area and good conductivity properties as a new 2D material has been explored as electrode materials for supercapacitor. Silver nanowire (Ag Nw) has been attracting more and more attention because of their intrinsic optical, thermal and electric properties. In this research, MXene/Ag Nw composites have been fabricated by a simple and "green" filtration selfassembly method. Their structure and morphology were analyzed with scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectrometer (FT-IR), energy dispersive spectrometer (EDS) as well as electrochemical properties tested on electrochemical workstation. The synergetic effect of MXene and silver nanowire constructed a three dimensional (3D) conductive network and enlarged the distance of MXene layers. The results revealed that MXene/Ag Nw composites exhibited a high specific capacitance (379.06 F·g-1 at 10 mV·s-1) when the concentration of Ag Nw is 5% which is higher than pure MXene (176.95 F·g-1) and long-term cycling stability (98.20% capacitance retention over 1000 cycles). In a word, the MXene/Ag Nw composite films have exhibited an improved electrochemical performance when used as electrode materials for supercapacitor.

Key words: MXene, silver nanowire, electrode materials, supercapacitor, cycling stability

CLC Number: