title: Electromanipulating water flow in nanochannels.
abstract: In sharp contrast to the prevailing view that a stationary charge outside a nanochannel impedes water permeation across the nanochannel, molecular dynamics simulations show that a vibrational charge outside the nanochannel can promote water flux. In the vibrational charge system, a decrease in the distance between the charge and the nanochannel leads to an increase in the water net flux, which is contrary to that of the fixed-charge system. The increase in net water flux is the result of the vibrational charge-induced disruption of hydrogen bonds when the net water flux is strongly affected by the vibrational frequency of the charge. In particular, the net flux is reaches a maximum when the vibrational frequency matches the inherent frequency of hydrogen bond inside the nanochannel. This electromanipulating transport phenomenon provides an important new mechanism of water transport confined in nanochannels.
authors.affiliation: State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580 (China); Institute of Condensed Matter Physics, Zhejiang Normal University, Jinhua 321004 (China).
authors.forename: Jianlong
authors.initials: J
authors.lastname: Kou
authors.forename: Jun
authors.initials: J
authors.lastname: Yao
authors.forename: Hangjun
authors.initials: H
authors.lastname: Lu
authors.forename: Bo
authors.initials: B
authors.lastname: Zhang
authors.forename: Aifen
authors.initials: A
authors.lastname: Li
authors.forename: Zhixue
authors.initials: Z
authors.lastname: Sun
authors.forename: Jianguang
authors.initials: J
authors.lastname: Zhang
authors.forename: Yunzhang
authors.initials: Y
authors.lastname: Fang
authors.forename: Fengmin
authors.initials: F
authors.lastname: Wu
authors.forename: Jintu
authors.initials: J
authors.lastname: Fan
mesh_terms: D006860:Hydrogen Bonding; D056004:Molecular Dynamics Simulation; D049329:Nanostructures / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry; D014867:Water / Q000737:chemistry*; D014872:Water Movements
chemical_list: D037742:Nanotubes, Carbon; D014867:Water
keywords: electromanipulation; nanochannels; water transport