化工学报Issue(7)：2849-2854,6.DOI:10.3969/j.issn.0438-1157.2014.07.047
石墨烯纳米片/CoS2复合材料的制备及其在超级电容器中的应用
Preparation of graphene nanosheet/CoS2 composite and its application in supercapacitors
摘要
Abstract
The graphene nanosheet(GNS)/CoS2 composite was prepared by the one-step hydrothermal method. The crystal structure and morphology were characterized by XRD and SEM. Electrochemical properties were determined by cyclic voltammetry and electrochemical impedance spectroscopy. Graphite oxide (GO) was gradually reduced to form graphene nanasheet during the hydrothermal process, which could provide abundant contact sites for the formation of CoS2 crystal nucleus, thus leading to uniform distribution of CoS2particles on the surface of graphene. Such novel structure composite not only significantly enhanced the effective contact area between CoS2 and electrolyte, but also improved electrochemical utilization of CoS2 electrode materials. Meanwhile, it facilitated electrical conductivity of the material, resulting in increased specific capacitance.关键词
CoS2/石墨烯/超级电容器/复合材料/电化学性能Key words
CoS2/graphene/supercapacitors/composites/electrochemical performance分类
化学化工引用本文复制引用
李吉,魏彤,闫俊,龙从来,范壮军..石墨烯纳米片/CoS2复合材料的制备及其在超级电容器中的应用[J].化工学报,2014,(7):2849-2854,6.基金项目
国家自然科学基金项目（21003028）。@@@@supported by the National Natural Science Foundation of China (21003028) （21003028）
