A simple approach to prepare nickel hydroxide nanosheets for enhanced pseudocapacitive performance
- Publication Type:
- Journal Article
- RSC Advances, 2014, 4 (37), pp. 19476 - 19481
- Issue Date:
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Nickel hydroxide nanosheets were synthesized by a simple microwave assisted heating method and investigated as electrochemical pseudo-capacitive materials for supercapacitors. The crystalline structure and morphology of the as-obtained Ni(OH)2 nanosheets were characterized by X-ray diffraction, nitrogen adsorption-desorption isotherms, field emission scanning electron microscopy and transmission electron microscopy. The electrochemical properties of the Ni(OH)2 nanosheets were evaluated by cyclic voltammetry and chronopotentiometry technology in 2 M KOH solution. The nickel hydroxide nanosheet electrode shows a maximum specific capacitance of 2570 F g -1 at a current density of 5 A g-1 and exhibits superior cycling stability. These results suggest its potential application as an electrode material for supercapacitors. © the Partner Organisations 2014.
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