Thermal conductivity of liquid/carbon nanotube core-shell nanocomposites

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

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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
Issue number1
Publication statusPublished - 4 Jan 2017
Externally publishedYes

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