Synthesis and characterization of nanoflakes β-Ni(OH)2 microspheres for supercapacitors
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.
β-Ni(OH)2 Specific capacitance Supercapacitor
Zhanjun Yu Ying Dai Wen Chen
College of Chemistry and Chemical Engineering, Fuyang Teachers College, Anhui, Fuyang 236041, China Institute of Materials Science and Engineering, Wuhan University of Technology, Hubei, Wuhan 430070,
国际会议
重庆
英文
306-309
2011-06-23(万方平台首次上网日期,不代表论文的发表时间)