The Effect of the Structure of an Electric Double Layer on the Stability of Bulk Nanobubbles

Abstract

The electrostatic stabilization of bulk nanobubbles is investigated taking into account the structure of a double layer consisting of diffusion and Stern regions, with the permittivity of the latter being significantly lower than that of the former. It is shown that a narrow hydrated Stern layer significantly increases the negative electrostatic pressure and, at certain values of the surface charge, can compensate for the huge compressive Laplace pressure by preventing the diffusion dissolution of bulk nanobubbles.