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Why Surface Nanobubbles Live for Hours
被引:262
|作者:
Weijs, Joost H.
[1
]
Lohse, Detlef
[1
]
机构:
[1] Univ Twente, Phys Fluids Grp, MESA Inst Nanotechnol, JM Burgers Ctr Fluid Dynam, NL-7500 AE Enschede, Netherlands
关键词:
HYDROPHOBIC SURFACES;
WATER;
D O I:
10.1103/PhysRevLett.110.054501
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
We present a theoretical model for the experimentally found but counterintuitive exceptionally long lifetime of surface nanobubbles. We can explain why, under normal experimental conditions, surface nanobubbles are stable for many hours or even up to days rather than the expected microseconds. The limited gas diffusion through the water in the far field, the cooperative effect of nanobubble clusters, and the pinned contact line of the nanobubbles lead to the slow dissolution rate. DOI: 10.1103/PhysRevLett.110.054501
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页数:5
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