Kinetics of nucleation in highly polar substances in the presence of ions

Anikin, G. V.; Plotnikov, S. N.

doi:10.1134/s0036024406130140

Cited by 3 publications

(1 citation statement)

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“…At this, instead of central electric field, we have to consider the influence on nucleation of the axisymmetrical electric field that distorts the spherical shape of a nucleating droplet. This problem is different from the problem of ion-induced nucleation at arbitrary location of the ion 45 due to the presence of the particle serving as condensation nucleus and the contribution of the disjoining pressure of the condensing liquid film being taken into account.…”

Section: Introductionmentioning

confidence: 96%

Vapor nucleation on a wettable nanoparticle carrying a non-central discrete electric charge

Warshavsky

Podguzova

Tatyanenko

et al. 2013

The Journal of Chemical Physics

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We have studied thermodynamics of vapor nucleation on a spherical wettable dielectric nanoparticle carrying a discrete electric charge located at a certain distance from the particle center. New general equations for the chemical potential of a condensate molecule in the droplet around the particle, the work of the droplet formation and the droplet shape as functions of the effective radius of condensate film, and the value of an electric charge and its location with respect to the particle center have been derived analytically. These equations take into account both the effects of the non-central electric field and the disjoining pressure in the thin liquid film forming the droplet. Under the assumption of small distortion of the droplet shape in the axisymmetric electric field of non-central discrete charge from the spherical one, these equations have been simultaneously solved analytically. The obtained explicit formulas for the condensate chemical potential, the work of droplet formation, and the droplet shape have been numerically investigated for the case of the charge adsorbed below and above the surface of the particle. It has been shown that the effect of the electric field of non-central charge reveals itself in decreasing the maximum value of the condensate chemical potential in the droplet and shifting it away from the particle surface. As a result, the threshold value of the vapor supersaturation for barrierless nucleation and the activation barrier for barrier nucleation on the charged nanosized nuclei diminish in comparison with nucleation on nuclei with central charge. The effect is larger for smaller nuclei. It decreases with increase in the dielectric constant of the nuclei in the case of charge location below the particle surface.

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Section: Introductionmentioning

confidence: 96%