Zipper mechanism of nanotube fusion: Theory and experiment
(2004) Physical Review Letters — Vol. 92, n° 7 (2004)
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- Abstract
- We propose a new microscopic mechanism to explain the unusually fast fusion process of carbon nanotubes. We identify the detailed pathway for two adjacent (5,5) nanotubes to gradually merge into a (10,10) tube, and characterize the transition states. The propagation of the fused region is energetically favorable and proceeds in a morphology reminiscent of a Y junction via a zipper mechanism, involving only Stone-Wales bond rearrangements with low activation barriers. The zipper mechanism of fusion is supported by a time series of high-resolution transmission electron microscopy observations.
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Yoon, M., Han, S., Kim, G., Lee, S., Berber, S., Osawa, E., Ihm, J., Terrones, M., Banhart, F., Charlier, J.-C., Grobert, N., Terrones, H., Ajayan, P. M., & Tomanek, D. (2004). Zipper mechanism of nanotube fusion: Theory and experiment. Physical Review Letters, 92(7). https://doi.org/10.1103/PhysRevLett.92.075504 (Original work published 2004)