Mechanism of Nanobubble Formation in Water on a Hydrophobic Surface

  • L. A. Bulavin Taras Shevchenko National University of Kyiv, Faculty of Physics
  • P. Kekicheff Institut Charles Sadron, CNRS
  • V. M. Sysoev Taras Shevchenko National University of Kyiv, Faculty of Physics
  • N. L. Sheiko Taras Shevchenko National University of Kyiv, Faculty of Physics, Institut Charles Sadron, CNRS
Keywords: nanobubble, hydrophobic surface, phase transition phase transition shift, Laplace pressure, near-wall potential

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.

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Published
2018-10-18
How to Cite
Bulavin, L., Kekicheff, P., Sysoev, V., & Sheiko, N. (2018). Mechanism of Nanobubble Formation in Water on a Hydrophobic Surface. Ukrainian Journal of Physics, 59(1), 95. https://doi.org/10.15407/ujpe59.01.0095
Section
General problems of theoretical physics

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