Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 26, Issue 4, Pages 2236-2242Publisher
SPRINGER
DOI: 10.1007/s10854-015-2674-3
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- US Army Research Laboratory-Broad Agency Announcement (BAA) [W911NF-12-1-0588]
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In this study, beta-phase nickel hydroxide with a hexagonal brucite structure has been meshed with successive ionic layer adsorption and reaction deposited cupric oxide. The nanocomposite was characterized by X-ray diffraction, scanning electron microscopy and UV-Vis-NIR spectroscopy. The electrochemical performances of the nanocomposite Ni(OH)(2)/CuO supercapacitor were tested by cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy tests in 1 M KOH solution. With the potential window between 0 and 0.5 V, a maximum specific capacitance 27 F/g was observed at a scan rate of 10 mV/s. Moreover, Ni(OH)(2)/CuO electrode in the symmetric device shows a low energy (1.0 Wh/kg) and power (242 W/kg) density.
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