Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31917
Title: Nano watermill driven by revolving charge
Authors: Zhou, XY
Kou, JL
Nie, XC
Wu, FM
Liu, Y 
Lu, HJ
Issue Date: 2015
Source: Chinese physics B, 2015, v. 24, no. 7, 074702
Abstract: A novel nanoscale watermill for the unidirectional transport of water molecules through a curved single-walled carbon nanotube (SWNT) is proposed and explored by molecular dynamics simulations. In this nanoscale system, a revolving charge is introduced to drive a water chain confined inside the SWNT, the charge and the tube together serving as a nano waterwheel and nano engine. A resonance-like phenomenon is found, and the revolving frequency of the charge plays a key role in pumping the water chain. The water flux across the SWNT increases with respect to the revolving frequency of the external charge and it reaches its maximum when the frequency is 4 THz. Correspondingly, the number of hydrogen bonds in the water chain inside the SWNT decreases dramatically as the frequency increases from 4 THz to 25 THz. The mechanism behind the resonance phenomenon has been investigated systematically. Our findings are helpful for the design of nanoscale fluidic devices and energy converters.
Keywords: Carbon nanotube
Molecular dynamics simulations
Revolving charge
Water pumping
Publisher: Chinese Physical Society
Journal: Chinese physics B 
ISSN: 1674-1056
DOI: 10.1088/1674-1056/24/7/074702
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

3
Last Week
0
Last month
0
Citations as of Sep 6, 2020

WEB OF SCIENCETM
Citations

1
Last Week
0
Last month
0
Citations as of Sep 19, 2020

Page view(s)

161
Last Week
0
Last month
Citations as of Sep 20, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.