Abstract
A carbon nanoscroll (CNS) can be formed easily by rolling a graphene sheet around a carbon nanotube (CNT) [Zhang and Li, 2010, APL, 97, 081909]. When the CNS is driven by the rotary CNT to rotate at a high speed, the attractive interaction within the CNS or between the CNS and CNT is crippled by the centrifugal force on the CNS. The unwinding of CNS is triggered when the kinetic energy increment approaches to the variation of interaction energy of the system during CNS formation. Numerical experiments also indicate that the unwinding of CNS happens earlier when the CNT has a higher rotational speed or the system is at a higher temperature.
Highlights
When the carbon nanoscroll (CNS) is driven by the rotary carbon nanotube (CNT) to rotate at a high speed, the attractive interaction within the CNS or between the CNS and CNT is crippled by the centrifugal force on the CNS
Numerical experiments indicate that the unwinding of CNS happens earlier when the CNT has a higher rotational speed or the system is at a higher temperature
As a closely related structure of carbon nanotubes (CNTs),[1] a carbon nanoscroll (CNS), which is formed by rolling up a graphene, has an adjustable radius due to its open axial boundaries
Summary
As a closely related structure of carbon nanotubes (CNTs),[1] a carbon nanoscroll (CNS), which is formed by rolling up a graphene, has an adjustable radius due to its open axial boundaries. Hang Yin[1] and Kun Cai1,2,a 1College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, China 2Research School of Engineering, the Australian National University, Acton, Australian Capital Territory, 2601, Australia (Received 20 July 2015; accepted 27 August 2015; published online 2 October 2015)
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