Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (11): 1335-1342.DOI: 10.11944/j.issn.1000-0518.2015.11.150142

• Full Papers • Previous Articles    

Preparation and Supercapacitor Properties of Porous Nickel Oxide Film

WANG Qiuliab,WANG Jiaboc,SONG Zhongkaic,CHEN Jinxingc,YIN Qic,JIN Xiaoyingbc,SUN Guoyingbc*()   

  1. aChemical Engineering School,Changchun University of Technology,Changchun 130012,China
    bAdvanced Institute of Material Science,Changchun University of Technology,Changchun 130012,China
    cKey Laboratory of Carbon Fiber,School of Chemistry and Life Science,Changchun University of Technology,Changchun 130012,China
  • Received:2015-04-15 Accepted:2015-08-20 Published:2015-11-02 Online:2015-11-02
  • Contact: SUN Guoying
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21003013), the National Natural Science Foundation of Jilin Province(No.201215126)

Abstract:

Porous NiO film grown on the substrate of F-doped SnO2 conductive glasses(FTO) was successfully prepared through the hydrothermal method in combination with high temperature calcination. The surface morphology, phase composition and the valence state of the obtained NiO film were detected by SEM, TEM, XRD and XPS, respectively. The electrochemical performances were characterized by cyclic voltammetry(CV) and galvanostatic charge/discharge in the electrolyte solution of 6 mol/L KOH. These results indicate that the specific capcacitance of the NiO electrode can reach 651.6 F/g at a current density of 2 A/g. After 1000 cycles 71.6% of the maximum capcacitance is still remained, suggesting its excellent cycling stability and promising application as an ideal electrode material for supercapacitors.

Key words: nickel oxide, film, supercapacitor, electrode material