Controlled synthesis of nickel sulfide/graphene oxide nanocomposite for high-performance supercapacitor

被引：178
作者：
Wang, Aming [1 ]
Wang, Hailong [1 ]
Zhang, Shengyi [1 ]
Mao, Changjie [1 ]
Song, Jiming [1 ]
Niu, Helin [1 ]
Jin, Baokang [1 ]
Tian, Yupeng [1 ]
机构：
[1] Anhui Univ, Dept Chem, Hefei 230039, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2013年 / 282卷
基金：
中国国家自然科学基金;
关键词：
Graphene oxide; Nickel sulfide; Nanocomposite; Supercapacitor; NITROGEN-DOPED GRAPHENE; ELECTROCHEMICAL PERFORMANCE; ELECTRODES; COMPOSITE; ENERGY; NANOSHEETS; NANOWIRES; FACILE; SHEETS;
D O I：
10.1016/j.apsusc.2013.06.038
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
As a novel supercapacitor material, nickel sulfide/graphene oxide (NiS/GO) nanocomposite was synthesized by a hydrothermal process in the presence of graphene oxide. For the NiS/GO nanocomposite as-obtained, the characterization results show that the NiS particles (50 nm) distribute evenly on the GO sheets. The electrochemical property and impedance of the NiS/GO nanocomposite were studied by cyclic voltammetry and electron impedance spectroscopy analysis, respectively. The results show that the introduction of the GO enhanced the electrode conductivity, and then improved the supercapacitive behavior of the NiS/GO nanocomposite. The galvanostatic charge/discharge measurement results indicate that the NiS/GO nanocomposite has a high specific capacitance (800 F g(-1) at 1 A g(-1)) and long cycle life (over 1000 cycles). (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：704 / 708
页数：5
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