Heat transfer through a dual-walled carbon nanotube

Molecular Dynamics simulations are used to investigate the resistance to heat tranfer between the walls of dual-walled carbon nanotubes (DWCNTs). Recent computional results have indicated that the carbon nanotube to carbon nanotube thermal boundary resistance (TBR) can be as high or higher than the TBR between a nanotube and the surrounding matrix (e.g., epoxy or octane) in thee case of composites. This generates the question of whether heat transfer in multi-walled carbon nanotubes occures through the outer nanotube only or not. We discuss here results for a DWCNT composed of a (5,5) nanotube inside a (10,10) nanotube, as well as the differences between this case and the case of a (6,6) inside a (19,0).