Template-free solvothermal synthesis of NiS2 microspheres on graphene sheets for high-performance supercapacitors

被引：72

作者：

Li, Xianfu ^{[1
]}

Shen, Jianfeng ^{[1
]}

Li, Na ^{[1
]}

Ye, Mingxin ^{[1
]}

机构：

[1] Fudan Univ, Ctr Special Mat & Technol, Shanghai 200433, Peoples R China

来源：

MATERIALS LETTERS | 2015年 / 139卷

关键词：

Composite materials; Energy storage and conversion; Graphene; NiS2; Supercapacitor; OXIDE; CARBON; REDUCTION; NANOCOMPOSITES; NANOSHEETS;

D O I：

10.1016/j.matlet.2014.10.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Graphene/NiS2 composite was obtained through a template-free solvothermal reaction using graphene oxide (GO), Na2S2O3 center dot 5H(2)O and NiCl2 center dot 6H(2)O as reactants. Na2S2O3 center dot 5H(2)O plays an important role as the reducing agent for GO as well as the sulfur source for NiS2. Electrochemical behaviour of the graphene/NiS2 composite was studied through cyclic voltammetry and galvanostatic charge-discharge. As for the applications in supercapacitors, graphene/NiS2 composite shows a great value of 478.1 Fig at a current density of 0.5 A/g. Furthermore, the capacitance of graphene/NiS2 decreases only 10.7% of its initial value after 2000 cycles. (C) 2014 Elsevier B.V. All rights reserved,

引用

页码：81 / 85

页数：5

共 18 条

[1] Carbon nanotubes/cobalt sulfide composites as potential high-rate and high-efficiency supercapacitors [J].

Chen, Chia-Ying ;

Shih, Zih-Yu ;

Yang, Zusing ;

Chang, Huan-Tsung .

JOURNAL OF POWER SOURCES, 2012, 215 :43-47

[2] Synthesis of Nitrogen-Doped Porous Carbon Nanofibers as an Efficient Electrode Material for Supercapacitors [J].

Chen, Li-Feng ;

Zhang, Xu-Dong ;

Liang, Hai-Wei ;

Kong, Mingguang ;

Guan, Qing-Fang ;

Chen, Ping ;

Wu, Zhen-Yu ;

Yu, Shu-Hong .

ACS NANO, 2012, 6 (08) :7092-7102

[3] Phase-controlled solvothermal synthesis and characterization of nickel sulfides with good single crystalline nature [J].

Chen, Shuguang ;

Zeng, Kai ;

Li, Haibin ;

Li, Fujin .

JOURNAL OF SOLID STATE CHEMISTRY, 2011, 184 (08) :1989-1996

[4] Chemical Reduction of Graphene Oxide to Graphene by Sulfur-Containing Compounds [J].

Chen, Wufeng ;

Yan, Lifeng ;

Bangal, P. R. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (47) :19885-19890

[5] Vitamin C Is an Ideal Substitute for Hydrazine in the Reduction of Graphene Oxide Suspensions [J].

Fernandez-Merino, M. J. ;

Guardia, L. ;

Paredes, J. I. ;

Villar-Rodil, S. ;

Solis-Fernandez, P. ;

Martinez-Alonso, A. ;

Tascon, J. M. D. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (14) :6426-6432

[6] Interpretation of Raman spectra of disordered and amorphous carbon [J].

Ferrari, AC ;

Robertson, J .

PHYSICAL REVIEW B, 2000, 61 (20) :14095-14107

[7] Shape-engineerable and highly densely packed single-walled carbon nanotubes and their application as super-capacitor electrodes [J].

Futaba, Don N. ;

Hata, Kenji ;

Yamada, Takeo ;

Hiraoka, Tatsuki ;

Hayamizu, Yuhei ;

Kakudate, Yozo ;

Tanaike, Osamu ;

Hatori, Hiroaki ;

Yumura, Motoo ;

Iijima, Sumio .

NATURE MATERIALS, 2006, 5 (12) :987-994

[8] PREPARATION OF GRAPHITIC OXIDE [J].

HUMMERS, WS ;

OFFEMAN, RE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1958, 80 (06) :1339-1339

[9] AMINATION AND AMMOXIDATION OF ACTIVATED CARBONS [J].

JANSEN, RJJ ;

VANBEKKUM, H .

CARBON, 1994, 32 (08) :1507-1516

[10] Highly concentrated, stable nitrogen-doped graphene for supercapacitors: Simultaneous doping and reduction [J].

Jiang, Baojiang ;

Tian, Chungui ;

Wang, Lei ;

Sun, Li ;

Chen, Chen ;

Nong, Xiaozhen ;

Qiao, Yingjie ;

Fu, Honggang .

APPLIED SURFACE SCIENCE, 2012, 258 (08) :3438-3443

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