Nanoscale fluid transport: Size and rate effects

Xi CHEN; Guoxin CAO; Aijie HAN; Venkata K. PUNYAMURTULA; Ling LIU; Patricia J. CULLIGAN; Taewan KIM; Yu QIAO

doi:10.1021/nl802046b

Nanoscale fluid transport: Size and rate effects

Xi CHEN, Guoxin CAO, Aijie HAN, Venkata K. PUNYAMURTULA, Ling LIU, Patricia J. CULLIGAN, Taewan KIM, Yu QIAO^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

258 Citations (Scopus)

Abstract

The transport behavior of water molecules inside a model carbon nanotube is investigated by using nonequilibrium molecular dynamcis (NMED) simulations. The shearing stress between the nanotube wall and the water molecules is identified as a key factor in determining the nanofluidic properties. Due to the effect of nanoscale confinement, the effective shearing stress is not only size sensitive but also strongly dependent on the fluid flow rate. Consequently, the nominal viscosity of the confined water decreases rapidly as the tube radius is reduced or when a faster flow rate is maintained. An infiltration experiment on a nanoporous carbon is performed to qualitatively validate these findings. © 2008 American Chemical Society.

Original language	English
Pages (from-to)	2988-2992
Number of pages	5
Journal	Nano Letters
Volume	8
Issue number	9
Early online date	23 Aug 2008
DOIs	https://doi.org/10.1021/nl802046b
Publication status	Published - 10 Sept 2008
Externally published	Yes

Funding

Acknowledgment: The work was supported by ARO under Grant W911NF-05-1-0288, by NSF and Sandia National Laboratory under Grant CMMI-0623973, and by NSF under Grant CMMI-0643726.

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title = "Nanoscale fluid transport: Size and rate effects",

abstract = "The transport behavior of water molecules inside a model carbon nanotube is investigated by using nonequilibrium molecular dynamcis (NMED) simulations. The shearing stress between the nanotube wall and the water molecules is identified as a key factor in determining the nanofluidic properties. Due to the effect of nanoscale confinement, the effective shearing stress is not only size sensitive but also strongly dependent on the fluid flow rate. Consequently, the nominal viscosity of the confined water decreases rapidly as the tube radius is reduced or when a faster flow rate is maintained. An infiltration experiment on a nanoporous carbon is performed to qualitatively validate these findings. {\textcopyright} 2008 American Chemical Society.",

author = "Xi CHEN and Guoxin CAO and Aijie HAN and PUNYAMURTULA, {Venkata K.} and Ling LIU and CULLIGAN, {Patricia J.} and Taewan KIM and Yu QIAO",

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T1 - Nanoscale fluid transport: Size and rate effects

AU - CHEN, Xi

AU - CAO, Guoxin

AU - HAN, Aijie

AU - PUNYAMURTULA, Venkata K.

AU - LIU, Ling

AU - CULLIGAN, Patricia J.

AU - KIM, Taewan

AU - QIAO, Yu

PY - 2008/9/10

Y1 - 2008/9/10

N2 - The transport behavior of water molecules inside a model carbon nanotube is investigated by using nonequilibrium molecular dynamcis (NMED) simulations. The shearing stress between the nanotube wall and the water molecules is identified as a key factor in determining the nanofluidic properties. Due to the effect of nanoscale confinement, the effective shearing stress is not only size sensitive but also strongly dependent on the fluid flow rate. Consequently, the nominal viscosity of the confined water decreases rapidly as the tube radius is reduced or when a faster flow rate is maintained. An infiltration experiment on a nanoporous carbon is performed to qualitatively validate these findings. © 2008 American Chemical Society.

AB - The transport behavior of water molecules inside a model carbon nanotube is investigated by using nonequilibrium molecular dynamcis (NMED) simulations. The shearing stress between the nanotube wall and the water molecules is identified as a key factor in determining the nanofluidic properties. Due to the effect of nanoscale confinement, the effective shearing stress is not only size sensitive but also strongly dependent on the fluid flow rate. Consequently, the nominal viscosity of the confined water decreases rapidly as the tube radius is reduced or when a faster flow rate is maintained. An infiltration experiment on a nanoporous carbon is performed to qualitatively validate these findings. © 2008 American Chemical Society.

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DO - 10.1021/nl802046b

M3 - Journal Article (refereed)

SN - 1530-6984

VL - 8

SP - 2988

EP - 2992

JO - Nano Letters

JF - Nano Letters

IS - 9

ER -

Nanoscale fluid transport: Size and rate effects

Abstract

Funding

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