A study of activated carbon nanotubes as double-layer capacitors electrode materials

被引：88

作者：

Li, CS ^{[1
]}

Wang, DZ

Liang, TX

Wang, XF

Ji, L

机构：

[1] Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Inst Nucl Energy Technol, Beijing 102201, Peoples R China

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 29期

关键词：

carbon nanotubes; electric double-layer capacitors; acid activation;

D O I：

10.1016/j.matlet.2004.07.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Activated carbon nanotubes (CNTs) were produced by acid treatment. The activated CNTs and the initial CNTs were both used as the electric double-layer capacitors (EDLCs) electrode materials. The activated CNTs had much higher BET specific surface area, pore volume and lower volume ratio of micropores than those of the initial CNTs. Moreover, some kinds of functional groups were added on the surface of activated CNTs. The specific capacitance of the CNTs activated by mixture acid of H2SO4 and HNO3 was above 2.5 times that of the initial CNTs. The activated CNTs and the initial CNTs were both examined by transmission electron microscopy (TEM) and infrared spectrum apparatus. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：3774 / 3777

页数：4

共 15 条

[1] Modification of the surface chemistry of activated carbons [J].

Figueiredo, JL ;

Pereira, MFR ;

Freitas, MMA ;

Orfao, JJM .

CARBON, 1999, 37 (09) :1379-1389

[2] Electrochemical storage of lithium multiwalled carbon nanotubes [J].

Frackowiak, E ;

Gautier, S ;

Gaucher, H ;

Bonnamy, S ;

Beguin, F .

CARBON, 1999, 37 (01) :61-69

[3] Influence of oxygen treatment on electric double-layer capacitance of activated carbon fabrics [J].

Hsieh, CT ;

Teng, H .

CARBON, 2002, 40 (05) :667-674

[4] HELICAL MICROTUBULES OF GRAPHITIC CARBON [J].

IIJIMA, S .

NATURE, 1991, 354 (6348) :56-58

[5] ELECTRONIC-PROPERTIES OF CARBON NANOTUBES - EXPERIMENTAL RESULTS [J].

ISSI, JP ;

LANGER, L ;

HEREMANS, J ;

OLK, CH .

CARBON, 1995, 33 (07) :941-948

[6] Production of short multi-walled carbon nanotubes [J].

Jia, ZJ ;

Wang, ZY ;

Liang, J ;

Wei, BQ ;

Wu, DH .

CARBON, 1999, 37 (06) :903-906

[7] Electrochemical supercapacitor material based on manganese oxide: preparation and characterization [J].

Jiang, JH ;

Kucernak, A .

ELECTROCHIMICA ACTA, 2002, 47 (15) :2381-2386

[8] Fabrication of high-power electric double-layer capacitors [J].

Kibi, Y ;

Saito, T ;

Kurata, M ;

Tabuchi, J ;

Ochi, A .

JOURNAL OF POWER SOURCES, 1996, 60 (02) :219-224

[9] Oxidation behavior of CNTs and the electric double layer capacitor made of the CNT electrodes [J].

Li, CS ;

Wang, DZ ;

Liang, TX ;

Li, GT ;

Wang, XF ;

Cao, MS ;

Liang, J .

SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES, 2003, 46 (04) :349-354

[10] Study of electrochemical capacitors utilizing carbon nanotube electrodes [J].

Ma, RZ ;

Liang, J ;

Wei, BQ ;

Zhang, B ;

Xu, CL ;

Wu, DH .

JOURNAL OF POWER SOURCES, 1999, 84 (01) :126-129

← 1 2 →