Vapor-liquid equilibrium in electric field gradients

Sela Samin, Yoav Tsori

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We investigate the vapor-liquid coexistence of polar and nonpolar fluids in the presence of a nonuniform electric field. We find that a large enough electric field can nucleate a gas bubble from the liquid phase or a liquid droplet from the vapor phase. The surface tension of the vapor-liquid interface is determined within squared-gradient theory. When the surface potential (charge) is controlled, the surface tension increases (decreases) compared to the zero-field interface. The effect of the electric field on the fluid phase diagram depends strongly on the constitutive relation for the dielectric constant. Finally, we show that gas bubbles can be nucleated far from the bounding surfaces.

Original languageEnglish
Pages (from-to)75-83
Number of pages9
JournalJournal of Physical Chemistry B
Volume115
Issue number1
DOIs
StatePublished - 13 Jan 2011

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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