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Low Dimensional Heat and Mass Transport in Carbon Nanotubes

[+] Author Affiliations
Junichiro Shiomi, Shigeo Maruyama

The University of Tokyo, Tokyo, Japan

Yuan Lin, Carl Fredrik Carlborg, Gustav Amberg

Royal Institute of Technology (KTH), Stockholm, Sweden

Paper No. MNHMT2009-18541, pp. 337-346; 10 pages
doi:10.1115/MNHMT2009-18541
From:
  • ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer
  • ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3
  • Shanghai, China, December 18–21, 2009
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 978-0-7918-4391-8 | eISBN: 978-0-7918-3864-8
  • Copyright © 2009 by ASME

abstract

This report covers various issues related to heat and mass transport in carbon nanotubes. Heat and mass transport under quasi-one-dimensional confinement has been investigated using molecular dynamics simulations. It is shown that the quasi-ballistic heat conduction manifests in the length and diameter dependences of carbon nanotube thermal conductance. Such quasi-ballistic nature of carbon nanotube heat conduction also influences the thermal boundary conductance between carbon nanotubes and the surrounding materials. The quasi-one-dimensional structure also influences the mass transport of water through carbon nanotubes. The confinement gives rise to strongly directional dynamic properties of water. Here, it is demonstrated that the confined water can be efficiently transported by using the temperature gradient. Furthermore, the simulations reveal the diameter-dependent anisotropic dielectric properties, which could be used to identify intrusion of water into carbon nanotubes.

Copyright © 2009 by ASME

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