Synthesis and Characterization of Nanoflakes β-Ni(OH)2 Microspheres for Supercapacitors

Zhan Jun Yu; Ying Dai; Wen Chen

doi:10.4028/www.scientific.net/AMR.230-232.306

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 230-232Synthesis and Characterization of Nanoflakes...

Synthesis and Characterization of Nanoflakes β-Ni(OH)₂ Microspheres for Supercapacitors

Abstract:

Nanoflakes β-Ni(OH)₂ microspheres were successfully synthesized by a facile hydrothermal. The microstructures and morphology were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Electrochemical properties studies were carried out using cyclic voltammetry (CV), galvanostaitc charge/discharge and electrochemical impedance spectroscopy methods, respectively. The results exhibited that the β-Ni(OH)₂ single electrode had high specific capacitance in KOH electrolyte. A maximum specific capacitance of 1929 F/g could be achieved in 6 M aqueous KOH with 0 to 0.4 V potential at a charge-discharge current density of 6 mA/cm². Therefore, the obtained nanoflakes β-Ni(OH)₂ microspheres can be a potential application electrode material for supercapacitors.

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Periodical:

Advanced Materials Research (Volumes 230-232)

Pages:

306-309

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.230-232.306

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Cite this paper

Online since:

May 2011

Authors:

Zhan Jun Yu, Ying Dai, Wen Chen

Keywords:

Specific Capacitance, Super-Capacitor (SC), β-Ni(OH)₂

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