Autonomous pump against concentration gradient

被引：0
作者：
Zhi-cheng Xu
Dong-qin Zheng
Bao-quan Ai
Wei-rong Zhong
机构：
[1] Siyuan laboratory,Department of Physics
[2] Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials,undefined
[3] Jinan University,undefined
[4] Laboratory of Quantum Engineering and Quantum Materials,undefined
[5] ICMP and SPTE,undefined
[6] South China Normal University,undefined
来源：
Scientific Reports | / 6卷
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Using non-equilibrium molecular dynamics and Monte Carlo methods, we have studied the molecular transport in asymmetric nanochannels. The efficiency of the molecular pump depends on the angle and apertures of the asymmetric channel, the environmental temperature and average concentration of the particles. The pumping effect can be explained as the competition between the molecular force field and the thermal disturbance. Our results provide a green approach for pumping fluid particles against the concentration gradient through asymmetric nanoscale thin films without any external forces. It indicates that pumping vacuum can be a spontaneous process.
引用
收藏
相关论文
共 91 条
  • [1] Ge M(1994)Observation of fullerene cones Chem. Phys. Lett. 220 192-196
  • [2] Sattler K(1997)Graphitic cones and the nucleation of curved carbon surfaces Nature 388 451-456
  • [3] Krishnan A(2001)Electronic structure of carbon nanocones Phys. Rev. Lett. 86 5970-5973
  • [4] Charlier JC(2008)Carbon nanocone: a promising thermal rectifier Appl. Phys. Lett. 93 243111-3170
  • [5] Rignanese GM(2008)Pillared graphene: a new 3-D network nanostructure for enhanced hydrogen storage Nano Lett. 8 3166-443
  • [6] Yang N(2010)Graphene wormholes: a condensed matter illustration of dirac fermions in curved space Nuclear Phys. B. 825 426-605
  • [7] Zhang G(2003)Diffusivities of Ar and Ne in carbon nanotubes Mol. Simul. 29 677-4357
  • [8] Li BW(2012)Selective Molecular Sieving through Porous Graphene Nat. Nanotech. 7 728-3328
  • [9] Dimitrakakis GK(2006)Mass transport of O2 and N2 in nanoporous carbon (C168 schwarzite) using a quantum mechanical force field and molecular dynamics simulations Langmuir 22 4620-71
  • [10] Tylianakis E(1999)Nonequilibrium molecular dynamics simulation of transport and separation of gases in carbon nanopores. I. Basic results Chem. Phys. 111 3252-10180
12345678910