Electrochemical characterization of carbon nanotubes as electrode in electrochemical double-layer capacitors

被引：376

作者：

Chen, JH ^{[1
]}

Li, WZ ^{[1
]}

Wang, DZ ^{[1
]}

Yang, SX ^{[1
]}

Wen, JG ^{[1
]}

Ren, ZF ^{[1
]}

机构：

[1] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA

来源：

CARBON | 2002年 / 40卷 / 08期

关键词：

carbon nanotubes; electrodes; chemical vapor deposition; scanning electron microscopy (SEM); sputtering;

D O I：

10.1016/S0008-6223(01)00266-4

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：

Carbon nanotubes uniformly 50 nm in diameter were directly grown on graphite foil. Cyclic voltammetry (CV) shows that the carbon nanotube/graphite foil electrode has a high specific capacitance (115.7 F/g at a scan rate of 100 mV/s) and exhibits typical double-layer behavior. A rectangular-shaped CV curve persists even at a scan rate of 100 mV/s in 1.0 M H2SO4 aqueous solution, which suggests that the carbon nanotube electrode could be an excellent candidate as the electrode in electrochemical double-layer capacitors. In addition, the influence of the potential scan rate, aging, and the electrolyte solution on the specific capacitance of nanotube electrodes was also studied. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1193 / 1197

页数：5

共 25 条

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