Synthesis and characterization of nanoflakes β-Ni(OH)2 microspheres for supercapacitors

摘要：

　　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.

关键词： β-Ni(OH)2 Specific capacitance Supercapacitor

作者: Zhanjun Yu Ying Dai Wen Chen

作者单位: 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,

会议类型: 国际会议

会议名称: the 2011 International Conference on Frontiers of Manufacturing Science and Measuring Technology (第一届制造科学与检测技术国际会议(ICFMM2011))

会议地点: 重庆

会议语种:英文

页码: 306-309

在线出版日期: 2011-06-23（万方平台首次上网日期，不代表论文的发表时间）