Vertically aligned double-walled carbon nanotube electrode prepared by transfer methodology for electric double layer capacitor

Yuichi Honda, Masayuki Takeshige, Hideki Shiozaki, Takaharu Kitamura, Kenji Yoshikawa, Supriya Chakrabarti, Osamu Suekane, Lujun Pan, Yoshikazu Nakayama, Masaki Yamagata, Masashi Ishikawa

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

We successfully prepared a vertically aligned double-walled carbon nanotube (DWCNT) sheet by a transfer procedure from a silicon substrate as a DWCNT seedbed that was covered with catalyst grains to an aluminum sheet as a current collector for application to a high-performance electrode for an electric double layer capacitor (EDLC). The charge-discharge characteristics and EDLC performances of the aligned DWCNT electrode were evaluated and compared with those of a vertically aligned multi-walled CNT (MWCNT) electrode. The gravimetric capacitance of the DWCNT electrode was ca. four times larger than that of the MWCNT electrode. The rate capability of the DWCNT electrode was found to be excellent. This is mainly ascribed to our transfer technique.

LanguageEnglish
Pages1580-1584
Number of pages5
JournalJournal of Power Sources
Volume185
Issue number2
DOIs
Publication statusPublished - 1 Dec 2008

Fingerprint

Carbon Nanotubes
electrochemical capacitors
Carbon nanotubes
carbon nanotubes
methodology
Electrodes
electrodes
Aluminum sheet
Silicon
Supercapacitor
accumulators
Capacitance
capacitance
Catalysts
aluminum
catalysts
Substrates
silicon

Keywords

  • Double-walled carbon nanotube
  • Electric double layer capacitor
  • Rate capability
  • Transfer
  • Vertically aligned DWCNT

Cite this

Honda, Yuichi ; Takeshige, Masayuki ; Shiozaki, Hideki ; Kitamura, Takaharu ; Yoshikawa, Kenji ; Chakrabarti, Supriya ; Suekane, Osamu ; Pan, Lujun ; Nakayama, Yoshikazu ; Yamagata, Masaki ; Ishikawa, Masashi. / Vertically aligned double-walled carbon nanotube electrode prepared by transfer methodology for electric double layer capacitor. In: Journal of Power Sources. 2008 ; Vol. 185, No. 2. pp. 1580-1584.
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Honda, Y, Takeshige, M, Shiozaki, H, Kitamura, T, Yoshikawa, K, Chakrabarti, S, Suekane, O, Pan, L, Nakayama, Y, Yamagata, M & Ishikawa, M 2008, 'Vertically aligned double-walled carbon nanotube electrode prepared by transfer methodology for electric double layer capacitor', Journal of Power Sources, vol. 185, no. 2, pp. 1580-1584. https://doi.org/10.1016/j.jpowsour.2008.09.020

Vertically aligned double-walled carbon nanotube electrode prepared by transfer methodology for electric double layer capacitor. / Honda, Yuichi; Takeshige, Masayuki; Shiozaki, Hideki; Kitamura, Takaharu; Yoshikawa, Kenji; Chakrabarti, Supriya; Suekane, Osamu; Pan, Lujun; Nakayama, Yoshikazu; Yamagata, Masaki; Ishikawa, Masashi.

In: Journal of Power Sources, Vol. 185, No. 2, 01.12.2008, p. 1580-1584.

Research output: Contribution to journalArticle

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AU - Honda, Yuichi

AU - Takeshige, Masayuki

AU - Shiozaki, Hideki

AU - Kitamura, Takaharu

AU - Yoshikawa, Kenji

AU - Chakrabarti, Supriya

AU - Suekane, Osamu

AU - Pan, Lujun

AU - Nakayama, Yoshikazu

AU - Yamagata, Masaki

AU - Ishikawa, Masashi

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AB - We successfully prepared a vertically aligned double-walled carbon nanotube (DWCNT) sheet by a transfer procedure from a silicon substrate as a DWCNT seedbed that was covered with catalyst grains to an aluminum sheet as a current collector for application to a high-performance electrode for an electric double layer capacitor (EDLC). The charge-discharge characteristics and EDLC performances of the aligned DWCNT electrode were evaluated and compared with those of a vertically aligned multi-walled CNT (MWCNT) electrode. The gravimetric capacitance of the DWCNT electrode was ca. four times larger than that of the MWCNT electrode. The rate capability of the DWCNT electrode was found to be excellent. This is mainly ascribed to our transfer technique.

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