Self-assembled double ladder structure formed inside carbon nanotubes by encapsulation of H8Si8O12

Zheng Liu, Soon Kil Joung, Toshiya Okazaki, Kazu Suenaga, Yoshiaki Hagiwara, Tetsu Ohsuna, Kazuyuki Kuroda, Sumio Iijima

    Research output: Contribution to journalArticle

    23 Citations (Scopus)

    Abstract

    Unique low-dimensional SiO2-based nanomaterials can be encapsulated and synthesized inside the nanometer-scale one-dimensional internal spaces of carbon nanotubes (CNTs). In this study, various singlewalled CNTs (SWNTs) and double-walled CNTs (DWNTs) having different diameters are used as containers for cubic octameric H8Si8O12 molecules. High-resolution transmission electron microscopy (HRTEM), Fourier transform infrared (FT-IR) spectroscopy, and Raman spectroscopy observations revealed that, depending on the diameter of the CNTs, two types of structures are formed inside the SWNTs and DWNTs: In the case of those CNTs having inner diameters ranging from 1.2 to 1.4 nm, a new ordered self-assembled structure composed of H8Si4bO8n-4 molecules was formed through the transformation of H8Si8O12; however, in the case of CNTs having inner diameters larger than 1.7 nm, a disordered structure was formed. This behavior may indicate that strong interactions occur between the CNTs and the encapsulated H8Si4nO8a-4 molecules.

    Original languageEnglish
    Pages (from-to)1160-1166
    Number of pages7
    JournalACS Nano
    Volume3
    Issue number5
    DOIs
    Publication statusPublished - 2009 May 26

    Fingerprint

    Carbon Nanotubes
    Ladders
    Encapsulation
    ladders
    Carbon nanotubes
    carbon nanotubes
    Molecules
    High resolution transmission electron microscopy
    molecules
    Nanostructured materials
    Fourier transform infrared spectroscopy
    Containers
    Raman spectroscopy
    containers
    infrared spectroscopy
    transmission electron microscopy
    high resolution

    Keywords

    • Carbon nanotubes
    • Double ladder structure
    • Electron microscopy
    • Octahydridosilsesquioxane
    • Structure evaluation

    ASJC Scopus subject areas

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

    Cite this

    Liu, Z., Joung, S. K., Okazaki, T., Suenaga, K., Hagiwara, Y., Ohsuna, T., ... Iijima, S. (2009). Self-assembled double ladder structure formed inside carbon nanotubes by encapsulation of H8Si8O12 ACS Nano, 3(5), 1160-1166. https://doi.org/10.1021/nn9002727

    Self-assembled double ladder structure formed inside carbon nanotubes by encapsulation of H8Si8O12 . / Liu, Zheng; Joung, Soon Kil; Okazaki, Toshiya; Suenaga, Kazu; Hagiwara, Yoshiaki; Ohsuna, Tetsu; Kuroda, Kazuyuki; Iijima, Sumio.

    In: ACS Nano, Vol. 3, No. 5, 26.05.2009, p. 1160-1166.

    Research output: Contribution to journalArticle

    Liu, Z, Joung, SK, Okazaki, T, Suenaga, K, Hagiwara, Y, Ohsuna, T, Kuroda, K & Iijima, S 2009, 'Self-assembled double ladder structure formed inside carbon nanotubes by encapsulation of H8Si8O12 ', ACS Nano, vol. 3, no. 5, pp. 1160-1166. https://doi.org/10.1021/nn9002727
    Liu Z, Joung SK, Okazaki T, Suenaga K, Hagiwara Y, Ohsuna T et al. Self-assembled double ladder structure formed inside carbon nanotubes by encapsulation of H8Si8O12 ACS Nano. 2009 May 26;3(5):1160-1166. https://doi.org/10.1021/nn9002727
    Liu, Zheng ; Joung, Soon Kil ; Okazaki, Toshiya ; Suenaga, Kazu ; Hagiwara, Yoshiaki ; Ohsuna, Tetsu ; Kuroda, Kazuyuki ; Iijima, Sumio. / Self-assembled double ladder structure formed inside carbon nanotubes by encapsulation of H8Si8O12 In: ACS Nano. 2009 ; Vol. 3, No. 5. pp. 1160-1166.
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