Highly selective growth of vertically aligned double-walled carbon nanotubes by a controlled heating method and their electric double-layer capacitor properties

Takayuki Iwasakr, Tasuku Maki, Daisuke Yokoyama, Hironori Kumagai, Yasuhiro Hashimoto, Takuma Asari, Hiroshi Kawarada

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    Vertically aligned double-walled carbon nanotubes (DWCNTs) with the highest selectivity of 90% were synthesized by a controlled heating method and their electric double-layer capacitor characteristics were evaluated. DWCNT arrays had a specific capacitance of 83 F/g, which is one of the highest values among CNT arrays in a nonaqueous solution and is almost equivalent to that for single-walled CNT (SWCNT) arrays reported previously. At the same specific capacitance, DWCNTs with superior structural properties are more promising for practical capacitors than SWCNTs.

    Original languageEnglish
    Pages (from-to)53-55
    Number of pages3
    JournalPhysica Status Solidi - Rapid Research Letters
    Volume2
    Issue number2
    DOIs
    Publication statusPublished - 2008

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    Carbon Nanotubes
    electrochemical capacitors
    Carbon nanotubes
    carbon nanotubes
    Heating
    heating
    Capacitance
    capacitance
    Structural properties
    Capacitors
    capacitors
    selectivity
    Supercapacitor

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Materials Science(all)

    Cite this

    Highly selective growth of vertically aligned double-walled carbon nanotubes by a controlled heating method and their electric double-layer capacitor properties. / Iwasakr, Takayuki; Maki, Tasuku; Yokoyama, Daisuke; Kumagai, Hironori; Hashimoto, Yasuhiro; Asari, Takuma; Kawarada, Hiroshi.

    In: Physica Status Solidi - Rapid Research Letters, Vol. 2, No. 2, 2008, p. 53-55.

    Research output: Contribution to journalArticle

    Iwasakr, Takayuki ; Maki, Tasuku ; Yokoyama, Daisuke ; Kumagai, Hironori ; Hashimoto, Yasuhiro ; Asari, Takuma ; Kawarada, Hiroshi. / Highly selective growth of vertically aligned double-walled carbon nanotubes by a controlled heating method and their electric double-layer capacitor properties. In: Physica Status Solidi - Rapid Research Letters. 2008 ; Vol. 2, No. 2. pp. 53-55.
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    AU - Kumagai, Hironori

    AU - Hashimoto, Yasuhiro

    AU - Asari, Takuma

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