Citation:
WANG Qiuli, WANG Jiabo, SONG Zhongkai, CHEN Jinxing, YIN Qi, JIN Xiaoying, SUN Guoying. Preparation and Supercapacitor Properties of Porous Nickel Oxide Film[J]. Chinese Journal of Applied Chemistry,
;2015, 32(11): 1335-1342.
doi:
10.11944/j.issn.1000-0518.2015.11.150142
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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.
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Keywords:
- nickel oxide,
- film,
- supercapacitor,
- electrode material
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