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  • Wall mediated transport in confined spaces: exact theory for low density

    Author(s)
    Jepps, OG
    Bhatia, SK
    Searles, DJ
    Griffith University Author(s)
    Jepps, Owen
    Year published
    2003
    Metadata
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    Abstract
    We present a theory for the transport of molecules adsorbed in slit and cylindrical nanopores at low density, considering the axial momentum gain of molecules oscillating between diffuse wall reflections. Good agreement with molecular dynamics simulations is obtained over a wide range of pore sizes, including the regime of single-file diffusion where fluid-fluid interactions are shown to have a negligible effect on the collective transport coefficient. We show that dispersive fluid-wall interactions considerably attenuate transport compared to classical hard sphere theory.We present a theory for the transport of molecules adsorbed in slit and cylindrical nanopores at low density, considering the axial momentum gain of molecules oscillating between diffuse wall reflections. Good agreement with molecular dynamics simulations is obtained over a wide range of pore sizes, including the regime of single-file diffusion where fluid-fluid interactions are shown to have a negligible effect on the collective transport coefficient. We show that dispersive fluid-wall interactions considerably attenuate transport compared to classical hard sphere theory.
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    Journal Title
    Physical Review Letters
    Volume
    91
    Issue
    12
    Publisher URI
    http://prl.aps.org/
    DOI
    https://doi.org/10.1103/PhysRevLett.91.126102
    Copyright Statement
    © 2003 American Physical Society. Reproduced in accordance with the copyright policy of the publisher. This journal is available online - use hypertext links.
    Subject
    Mathematical sciences
    Physical sciences
    Engineering
    History, heritage and archaeology
    Publication URI
    http://hdl.handle.net/10072/6344
    Collection
    • Journal articles

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