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Diamond Needles Actuating Triple-Walled Carbon Nanotube to Rotate via Thermal Vibration-Induced Collision

by 1, 2, 2,*, 1,* and 1
1
School of Highway, Chang’an University, Xi’an 710064, China
2
College of Water Resources and Architecturally Engineering, Northwest A&F University, Yangling 712100, China
*
Authors to whom correspondence should be addressed.
Int. J. Mol. Sci. 2019, 20(5), 1140; https://doi.org/10.3390/ijms20051140
Received: 7 February 2019 / Revised: 26 February 2019 / Accepted: 28 February 2019 / Published: 6 March 2019
(This article belongs to the Section Physical Chemistry and Chemical Physics)
A rotary nanomotor is an essential component of a nanomachine. In the present study, a rotary nanomotor from wedged diamonds and triple-walled nanotubes was proposed with the consideration of boundary effect. The outer tubes and mid-tubes were used as nanobearing to constrain the inner tube. Several wedges of the diamond were placed near the inner tube for driving the inner tube to rotate. At a temperature lower than 300 K, the inner tube as the rotor had a stable rotational frequency (SRF). It is shown that both the rotational direction and the value of SRF of the rotor depended on the temperature and thickness of the diamond wedges. The dependence was investigated via theoretical analysis of the molecular dynamics simulation results. For example, when each diamond wedge had one pair of tip atoms (unsaturated), the rotational direction of the rotor at 100 K was opposite to that at 300 K. At 500 K, the rotating rotor may stop suddenly due to breakage of the diamond needles. Some conclusions are drawn for potential application of such a nanomotor in a nanomachine. View Full-Text
Keywords: nanomotor; carbon nanotube; diamond; molecular dynamics nanomotor; carbon nanotube; diamond; molecular dynamics
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MDPI and ACS Style

Li, H.; Wang, A.; Shi, J.; Liu, Y.; Cheng, G. Diamond Needles Actuating Triple-Walled Carbon Nanotube to Rotate via Thermal Vibration-Induced Collision. Int. J. Mol. Sci. 2019, 20, 1140. https://doi.org/10.3390/ijms20051140

AMA Style

Li H, Wang A, Shi J, Liu Y, Cheng G. Diamond Needles Actuating Triple-Walled Carbon Nanotube to Rotate via Thermal Vibration-Induced Collision. International Journal of Molecular Sciences. 2019; 20(5):1140. https://doi.org/10.3390/ijms20051140

Chicago/Turabian Style

Li, Hui, Aiqin Wang, Jiao Shi, Yongjian Liu, and Gao Cheng. 2019. "Diamond Needles Actuating Triple-Walled Carbon Nanotube to Rotate via Thermal Vibration-Induced Collision" International Journal of Molecular Sciences 20, no. 5: 1140. https://doi.org/10.3390/ijms20051140

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