Co(OH)2-combined carbon-nanotube array electrodes for high-performance micro-electrochemical capacitors

被引：51

作者：

Ahn, Hyo-Jin ^{[2
]}

Kim, Won Bae ^{[2
]}

Seong, Tae-Yeon ^{[1
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea

[2] GIST, Dept Mat Sci & Engn, Kwangju 500712, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 09期

关键词：

micro-electrochemical capacitors; Co(OH)(2); CNT array; AAO; capacitance;

D O I：

10.1016/j.elecom.2008.06.018

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We have investigated binder-free Co(OH)(2)-combined carbon-nanotube (CNT) array electrodes using anodized aluminum oxide (AAO) templates for micro-electrochemical capacitors. It is shown that compared to the capacitors fabricated with CNT only electrodes (6.3 F/cm(3) at 100 mV/s), those with the Co(OH)(2)-combined CNT array electrodes produce much higher capacitance (12.74 F/cm(3) at 100 mV/s) together with superior high-rate capacitance. The improved electrochemical behavior is explained in terms of high capacitance of amorphous Co(OH)(2) electrode and the use of CNT arrays as effective current collector. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1284 / 1287

页数：4

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