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Title: Surface Nanobubbles Are Stabilized by Hydrophobic Attraction
Authors: Tan, Beng Hau
An, Hongjie
Ohl, Claus-Dieter
Keywords: Hydrophobic Attraction
Issue Date: 2018
Source: Tan, B. H., An, H., & Ohl, C.-D. (2018). Surface Nanobubbles Are Stabilized by Hydrophobic Attraction. Physical Review Letters, 120(16), 164502-.
Series/Report no.: Physical Review Letters
Abstract: The remarkably long lifetime of surface nanobubbles has perplexed researchers for two decades. The current understanding is that both contact line pinning and supersaturation of the ambient liquid are strictly required for the stability of nanobubbles, yet experiments show nanobubbles surviving in open systems and undersaturated environments. We find that this discrepancy can be addressed if the effects of an attractive hydrophobic potential at the solid substrate on the spatial distribution of the gas concentration is taken into account. We also show that, in our model, only substrate pinning is strictly required for stabilization; while hydrophobicity and supersaturation both aid stability, neither is mandatory—the absence of one can be compensated by an excess of the other.
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.120.164502
Rights: © 2018 American Physical Society (APS). This paper was published in Physical Review Letters and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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