Dodecyl sulfate-induced fast faradic process in nickel cobalt oxide-reduced graphite oxide composite material and its application for asymmetric supercapacitor device

被引：351

作者：

Wang, Xu ^{[1
]}

Liu, Wan Shuang ^{[1
]}

Lu, Xuehong ^{[1
]}

Lee, Pooi See ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 43期

关键词：

HIGH-PERFORMANCE SUPERCAPACITORS; LAYERED DOUBLE HYDROXIDES; HIGH-ENERGY DENSITY; ELECTROCHEMICAL CAPACITORS; ELECTRODE MATERIALS; CARBON NANOTUBES; HIGH-POWER; SHEETS; NANOSTRUCTURES; GRAPHENE/MNO2;

D O I：

10.1039/c2jm35307e

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：

In this contribution, we report a facile preparation method of nickel cobalt oxide-reduced graphite oxide (NiCo2O4-rGO) composite material. A fast Faradic process has been realized by sodium dodecyl sulfate (SDS)-induced ultrasmall NiCo2O4 nanocrystals on rGO. As a result, this composite material gives a high specific capacitance of 1222 F g(-1) at 0.5 A g(-1) and 768 F g(-1) at 40 A g(-1), showing an outstanding rate capability. An asymmetric supercapacitor device with high energy and power densities has been successfully assembled based on NiCo2O4-rGO composite material and activated carbon. The optimized device shows a high energy density of 23.32 Wh kg(-1) at a power density of 324.9W kg(-1). In addition, this asymmetric device shows good stability towards multistage current charge-discharge cycles.

引用

页码：23114 / 23119

页数：6

共 46 条

[1]

[Anonymous], 1999, ELECTROCHEMICAL SUPE

[2] INNER AND OUTER ACTIVE SURFACE OF RUO2 ELECTRODES [J].

ARDIZZONE, S ;

FREGONARA, G ;

TRASATTI, S .

ELECTROCHIMICA ACTA, 1990, 35 (01) :263-267

[3] Long-term cycling behavior of asymmetric activated carbon/MnO2 aqueous electrochemical supercapacitor [J].

Brousse, Thierry ;

Taberna, Pierre-Louis ;

Crosnier, Olivier ;

Dugas, Romain ;

Guillemet, Philippe ;

Scudeller, Yves ;

Zhou, Yingke ;

Favier, Frederic ;

Belanger, Daniel ;

Simon, Patrice .

JOURNAL OF POWER SOURCES, 2007, 173 (01) :633-641

[4] Graphene Oxide-MnO2 Nanocomposites for Supercapacitors [J].

Chen, Sheng ;

Zhu, Junwu ;

Wu, Xiaodong ;

Han, Qiaofeng ;

Wang, Xin .

ACS NANO, 2010, 4 (05) :2822-2830

[5] Graphene-MnO2 and graphene asymmetrical electrochemical capacitor with a high energy density in aqueous electrolyte [J].

Deng, Lingjuan ;

Zhu, Gang ;

Wang, Jianfang ;

Kang, Liping ;

Liu, Zong-Huai ;

Yang, Zupei ;

Wang, Zenglin .

JOURNAL OF POWER SOURCES, 2011, 196 (24) :10782-10787

[6] A comparative study of Li-ion battery, supercapacitor and nonaqueous asymmetric hybrid devices for automotive applications [J].

Du Pasquier, A ;

Plitz, I ;

Menocal, S ;

Amatucci, G .

JOURNAL OF POWER SOURCES, 2003, 115 (01) :171-178

[7] Asymmetric Supercapacitors Based on Graphene/MnO2 and Activated Carbon Nanofiber Electrodes with High Power and Energy Density [J].

Fan, Zhuangjun ;

Yan, Jun ;

Wei, Tong ;

Zhi, Linjie ;

Ning, Guoqing ;

Li, Tianyou ;

Wei, Fei .

ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (12) :2366-2375

[8] Synthesis and thermoelectric characterization of polycrystalline Ni1-xCaxCo2O4 (x=0-0.05) spinel materials [J].

Fujishiro, Y ;

Hamamoto, K ;

Shiono, O ;

Katayama, S ;

Awano, M .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2004, 15 (12) :769-773

[9] Studies and characterisations of various activated carbons used for carbon/carbon supercapacitors [J].

Gamby, J ;

Taberna, PL ;

Simon, P ;

Fauvarque, JF ;

Chesneau, M .

JOURNAL OF POWER SOURCES, 2001, 101 (01) :109-116

[10] Statically deposited nanostructured CoxNi1-x layered double hydroxides as electrode materials for redox-supercapacitors [J].

Gupta, Vinay ;

Gupta, Shubhra ;

Miura, Norio .

JOURNAL OF POWER SOURCES, 2008, 175 (01) :680-685

← 1 2 3 4 5 →