Thermal conductivity of liquid/carbon nanotube core-shell nanocomposites

Yutaka Yamada, Alexandros Askounis, Tatsuya Ikuta, Koji Takahashi, Yasuyuki Takata, Khellil Sefiane

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Hollow carbon nanotubes (CNTs) were impregnated with an ionic liquid, resulting in a composite core-shell nanostructure. Liquid infusion was verified by transmission electron microscopy and rigorous observations unveiled that the nanocomposite is stable, i.e., liquid did not evaporate owing to its low vapor pressure. A series of individual nanostructures were attached on T-type heat sensors and their thermal behavior was evaluated. The liquid core was found to reduce the thermal conductivity of the base structure, CNT, from ca. 28 W/mK to ca. 15 W/mK. These findings could contribute to a better understanding of nanoscale thermal science and potentially to applications such as nanodevice thermal management and thermoelectric devices.

Original languageEnglish
Article number015104
JournalJournal of Applied Physics
Volume121
Issue number1
DOIs
Publication statusPublished - Jan 7 2017

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Yamada, Y., Askounis, A., Ikuta, T., Takahashi, K., Takata, Y., & Sefiane, K. (2017). Thermal conductivity of liquid/carbon nanotube core-shell nanocomposites. Journal of Applied Physics, 121(1), [015104]. https://doi.org/10.1063/1.4973488