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Current issue   Ukr. J. Phys. 2014, Vol. 59, N 1, p. 95-97
https://doi.org/10.15407/ujpe59.01.0095    Paper

Bulavin L.A.1, Kekicheff P.2, Sysoev V.M.1, Sheiko N.L.1,2

1 Taras Shevchenko National University of Kyiv, Faculty of Physics
(4, Prosp. Academician Glushkov, Kyiv 03187, Ukraine; e-mail: bulavin221@gmail.com, sysoev@univ.kiev.ua)
2 Institut Charles Sadron, CNRS
(23, Rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France;
e-mail: patrick.kekicheff@ics-cnrs.unistra.fr)

Mechanism of Nanobubble Formation in Water on a Hydrophobic Surface

Section: General problems of theoretical physics
Original Author's Text: Ukrainian

Abstract: A possibility for nuclei of a new phase to emerge in the form of nanobubbles in water contacting with a hydrophobic surface (the “vapor–liquid” phase transition) at temperatures significantly lower than the ordinary phase transition temperature is discussed. A new mechanism has been proposed to explain this temperature reduction; namely, the repulsive forces significantly increase the chemical potential of the molecules in the liquid phase near the hydrophobic surface in comparison with that in the gas phase. The corresponding estimates show that, at the normal atmospheric pressure, the phase transition temperature can be shifted by about 50 K.

Key words: nanobubble, hydrophobic surface, phase transition phase transition shift, Laplace pressure, near-wall potential.


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