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Journal of Molecular Modeling

, 25:262 | Cite as

Defect-driven rotating system based on a double-walled carbon nanotube and graphene

  • Xiaotian Lin
  • Qiang HanEmail author
Original Paper
  • 59 Downloads

Abstract

A nanoscale rotating system that consists of a double-walled carbon nanotube (DWCNT) and graphene and is driven by a defect in the graphene is proposed, and its rotating dynamics and driving mechanism are investigated through molecular dynamics simulations. A potential energy difference caused by the presence of the vacancy defect on the graphene substrate causes the outer tube in the DWCNT to stably rotate in a specific direction. The rotational speed of the outer tubem initially increases before reaching a stable speed. This phenomenon indicates that the driving torque is a difference between the sides of the outer tube in the van der Waals potential; this difference in potential is caused by the presence of the defect in the graphene. In addition, the effects of the system temperature, the radius and chiral vectors of the DWCNT, and the location of the defect in the graphene are investigated. The theoretical work reported here should provide a reference for the design of motion systems based on carbon nanotubes and graphene and their applications.

Keywords

Carbon nanotube Molecular dynamics Rotate Defect 

Notes

Acknowledgments

The authors wish to acknowledge the support from the Natural Science Foundation of China (11772130).

Compliance with ethical standards

Declaration of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Engineering Mechanics, School of Civil Engineering and TransportationSouth China University of TechnologyGuangzhouPeople’s Republic of China

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