Patching and tearing single-wall carbon nanotube ropes into multiwall carbon nanotubes

Physical Review Letters 89, 255501 - 4 (2002)

Patching and tearing single-wall carbon nanotube ropes into multiwall carbon nanotubes

M.J. López, A. Rubio, J.A. Alonso, S. Lefrant, K. Méténier, S. Bonnamy

Bundles of single-wall carbon nanotubes (SWCNTs) coalesce forming multiwall carbon nanotubes (MWCNTs), containing from two to six nested tubes, under thermal treatment at high temperatures [(2200–2400) °C]. This structural transformation is confirmed by extensive molecular dynamics (MD) simulations. The simulations suggest a “patching-and-tearing” mechanism for the single-wall–to–multiwall transformation underlying the “concerted” coalescence of the tubes that begins with their polymerization. Tubes of different sizes and chiralities are considered.

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http://dx.doi.org/10.1103/PhysRevLett.89.255501

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