NF@Ni3S2超级电容器电极材料的性能研究  

Pine-like NF@Ni3S2 nano-structureas arrays for high-performance supercapacitors

作　　者：吕世权[1] 王丹阳 LYU Shi-quan;WANG Dan-yang(College of Physics,Jilin Normal University,Siping 136000,China)

机构地区：[1]吉林师范大学物理学院,吉林四平136000

出　　处：《吉林师范大学学报（自然科学版）》2020年第2期35-39,共5页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(51902126,61605059);吉林省科技发展计划项目(20181414008GH)。

摘　　要：采用泡沫镍作为镍源和电流收集体,通过水热法合成了NF@Ni3S2复合电极材料.利用X射线衍射(XRD)、扫描电子显微镜(SEM)、X光电子能谱(XPS)、比表面积和电化学表征对电极材料进行分析和表征.研究结果表明,合成的NF@Ni3S2复合电极展示了较高的电化学性能.独特松树状三维结构具有较高的比表面积,能与电解液充分接触,OH-离子能够快速进入电极内部,有效地提升电极/电解质界面氧化还原反应和电子传输速度.NF@Ni3S2电极材料具有较高的面积比电容,在电流密度为1 A·cm-2时的电容为1441.90 mF·cm-2.In this paper,NF@Ni3S2 composite electrode material was synthesized by hydrothermal method using nickel foam as nickel source and current collector.The NF@Ni3S2 composite electrode was characterized by X-ray diffraction(XRD),scanning electron microscope(SEM),X-ray photoelectron spectroscopy(XPS),specific surface area and electrochemical measurements.The results demonstrate that the electrode has a higher electrochemical performance.Due to the unique three-dimensional pine-like structure,OH-ions can penetrate the inner of the electrode quickly,and rate of the redox reaction and electron transmission are effectively promoted at the electrode/electrolyte interface.NF@Ni3S2 electrode material shows a high specific capacitance of 1441.90 mF·cm-2 at the current density of 1 A·cm-2.

关 键 词：水热法 三维结构 比电容 

分 类 号：O646[理学—物理化学]