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  • Stability, Dynamics, and Tolerance to Undersaturation of Surface Nanobubbles

    Author(s)
    Tan, Beng Hau
    An, Hongjie
    Ohl, Claus-Dieter
    Griffith University Author(s)
    An, Hongjie
    Year published
    2019
    Metadata
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    Abstract
    The theoretical understanding of surface nanobubbles—nanoscale gaseous domains on immersed substrates—revolves around two contrasting perspectives. One perspective, which considers gas transport in the nanobubbles’ vicinity, explains numerous stability-related properties but systematically underestimates the dynamical response timescale by orders of magnitude. The other perspective, which considers gas transport as the bulk liquid equilibrates with the external environment, recovers the experimentally observed dynamical timescale but incorrectly predicts that nanobubbles progressively shrink until dissolution. We propose a ...
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    The theoretical understanding of surface nanobubbles—nanoscale gaseous domains on immersed substrates—revolves around two contrasting perspectives. One perspective, which considers gas transport in the nanobubbles’ vicinity, explains numerous stability-related properties but systematically underestimates the dynamical response timescale by orders of magnitude. The other perspective, which considers gas transport as the bulk liquid equilibrates with the external environment, recovers the experimentally observed dynamical timescale but incorrectly predicts that nanobubbles progressively shrink until dissolution. We propose a model that couples both perspectives, which is capable of explaining the stability, dynamics, and unexpected tolerance of surface nanobubbles to undersaturated environments.
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    Journal Title
    Physical Review Letters
    Volume
    122
    Issue
    13
    DOI
    https://doi.org/10.1103/physrevlett.122.134502
    Subject
    Mathematical Sciences
    Physical Sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/386576
    Collection
    • Journal articles

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