电化学2017，Vol.23Issue(2)：217-225,9.DOI:10.13208/j.electrochem.161246
硫化镍/三维网络石墨烯复合材料制备及其在高性能超级电容器的应用研究
Novel Composites between Nano-Structured Nickel Sulfides and Three-Dimensional Graphene for High Performance Supercapacitors
摘要
Abstract
In this paper,a three-dimensional graphene (3DG) network grown on nickel foam was employed as a template for synthesizing graphene-based composite materials of supercapacitor electrode.The composites (crystal Ni3S2 nanorods on the surface of 3DG (abbreviated as Ni3S2/3DG)) were obtained through a one-step hydrothermal reaction.The morphological and structural evolution of the Ni3S2/3DG composites were investigated by SEM,TEM,XRD and Raman spectroscopy.Detailed electrochemical characterization showed that the Ni3S2/3DG-coated electrodes exhibited both a specific capacitance as high as 1825 F·g-1 at 5 mV·s-1 and a discharge capacitance as high as 517 F· g-1 at 10 mA.Remarkably,a high cycling performance (～ 100％ capacitance retention after 1000 cycles) is achieved at a current density of 20 mA.关键词
三维石墨烯/硫化镍/超级电容器/电化学储能Key words
three-dimensional graphene/nickel sulfide/supercapacitor/electrochenical energy storage分类
化学化工引用本文复制引用
王晓敏,窦湟琳,田真,张久俊..硫化镍/三维网络石墨烯复合材料制备及其在高性能超级电容器的应用研究[J].电化学,2017,23(2):217-225,9.基金项目
This work was supported by the National Natural Science Foundation of China (Grant No.51372160 and 51172152). （Grant No.51372160 and 51172152）
