Super-robust, lightweight, conducting carbon nanotube blocks cross-linked by de-fluorination

Yoshinori Sato, Makoto Ootsubo, Go Yamamoto, Gregory Van Lier, Mauricio Terrones Maldonado, Shinji Hashiguchi, Hisamichi Kimura, Akira Okubo, Kenichi Motomiya, Balachandran Jeyadevan, Toshiyuki Hashida, Kazuyuki Tohji

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

We produced large binder-free multi-walled carbon nanotube (MWNT) blocks from fluorinated MWNTs using thermal heating and a compressing method in vacuo. This technique resulted in the formation of covalent MWNT networks generated by the introduction of sp3-hybridized carbon atoms that cross-link between nanotubes upon de-fluorination. The resulting carbon nanotube blocks are lighter than graphite, can be machined and polished, and possess average bending strengths of 102.2 MPa, a bending modulus of 15.4 GPa, and an electrical conductivity of 2.1 × 102 S/cm. Although each nanotube exhibits a random structure in these blocks, the mechanical properties are 3 times higher than those obtained for commercial graphite. On the basis of theoretical molecular dynamics simulations, a model is presented for the nanotube interconnecting mechanism upon de-fluorination.

Original languageEnglish (US)
Pages (from-to)348-356
Number of pages9
JournalACS Nano
Volume2
Issue number2
DOIs
StatePublished - Feb 1 2008

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Fluorination
Carbon Nanotubes
fluorination
Nanotubes
Carbon nanotubes
nanotubes
Graphite
carbon nanotubes
conduction
graphite
flexural strength
compressing
Bending strength
Binders
Molecular dynamics
Carbon
mechanical properties
molecular dynamics
Heating
Atoms

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Sato, Y., Ootsubo, M., Yamamoto, G., Van Lier, G., Terrones Maldonado, M., Hashiguchi, S., ... Tohji, K. (2008). Super-robust, lightweight, conducting carbon nanotube blocks cross-linked by de-fluorination. ACS Nano, 2(2), 348-356. https://doi.org/10.1021/nn700324z
Sato, Yoshinori ; Ootsubo, Makoto ; Yamamoto, Go ; Van Lier, Gregory ; Terrones Maldonado, Mauricio ; Hashiguchi, Shinji ; Kimura, Hisamichi ; Okubo, Akira ; Motomiya, Kenichi ; Jeyadevan, Balachandran ; Hashida, Toshiyuki ; Tohji, Kazuyuki. / Super-robust, lightweight, conducting carbon nanotube blocks cross-linked by de-fluorination. In: ACS Nano. 2008 ; Vol. 2, No. 2. pp. 348-356.
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Sato, Y, Ootsubo, M, Yamamoto, G, Van Lier, G, Terrones Maldonado, M, Hashiguchi, S, Kimura, H, Okubo, A, Motomiya, K, Jeyadevan, B, Hashida, T & Tohji, K 2008, 'Super-robust, lightweight, conducting carbon nanotube blocks cross-linked by de-fluorination', ACS Nano, vol. 2, no. 2, pp. 348-356. https://doi.org/10.1021/nn700324z

Super-robust, lightweight, conducting carbon nanotube blocks cross-linked by de-fluorination. / Sato, Yoshinori; Ootsubo, Makoto; Yamamoto, Go; Van Lier, Gregory; Terrones Maldonado, Mauricio; Hashiguchi, Shinji; Kimura, Hisamichi; Okubo, Akira; Motomiya, Kenichi; Jeyadevan, Balachandran; Hashida, Toshiyuki; Tohji, Kazuyuki.

In: ACS Nano, Vol. 2, No. 2, 01.02.2008, p. 348-356.

Research output: Contribution to journalArticle

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AU - Terrones Maldonado, Mauricio

AU - Hashiguchi, Shinji

AU - Kimura, Hisamichi

AU - Okubo, Akira

AU - Motomiya, Kenichi

AU - Jeyadevan, Balachandran

AU - Hashida, Toshiyuki

AU - Tohji, Kazuyuki

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