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

Authors
Ahn, Hyo-JinKim, Won BaeSeong, Tae-Yeon
Issue Date
9월-2008
Publisher
ELSEVIER SCIENCE INC
Keywords
micro-electrochemical capacitors; Co(OH)(2); CNT array; AAO; capacitance
Citation
ELECTROCHEMISTRY COMMUNICATIONS, v.10, no.9, pp.1284 - 1287
Indexed
SCIE
SCOPUS
Journal Title
ELECTROCHEMISTRY COMMUNICATIONS
Volume
10
Number
9
Start Page
1284
End Page
1287
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/122757
DOI
10.1016/j.elecom.2008.06.018
ISSN
1388-2481
Abstract
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.
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공과대학 (신소재공학부)
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