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

Ahn, Hyo-Jin; Kim, Won Bae; Seong, Tae-Yeon

doi:10.1016/j.elecom.2008.06.018

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

Ahn, Hyo-Jin;
Kim, Won Bae;
Seong, Tae-Yeon

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46

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49

초록

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.

키워드

micro-electrochemical capacitors; Co(OH)(2); CNT array; AAO; capacitance; DOUBLE-LAYER CAPACITORS; SUPERCAPACITOR ELECTRODES; NANOCOMPOSITE ELECTRODES; MANGANESE OXIDE; FABRICATION

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

저자: Ahn, Hyo-Jin; Kim, Won Bae; Seong, Tae-Yeon

DOI: 10.1016/j.elecom.2008.06.018

발행일: 2008-09

유형: Article

저널명: Electrochemistry Communications

권: 10

호: 9

페이지: 1284 ~ 1287