Fluctuating Hydrodynamics and Debye-Hückel-Onsager Theory for Electrolytes

Aleksandar Donev, Alejandro L. Garcia, Jean Philippe Péraud, Andrew J. Nonaka, John B. Bell

Research output: Contribution to journalReview articlepeer-review

Abstract

We apply fluctuating hydrodynamics to strong electrolyte mixtures to compute the concentration corrections for chemical potential, diffusivity, and conductivity. We show these corrections to be in agreement with the limiting laws of Debye, Hückel, and Onsager. We compute explicit corrections for a symmetric ternary mixture and find that the co-ion Maxwell-Stefan diffusion coefficients can be negative, in agreement with experimental findings.

Original languageEnglish (US)
Pages (from-to)1-10
Number of pages10
JournalCurrent Opinion in Electrochemistry
Volume13
DOIs
StatePublished - Feb 2019

Keywords

  • Computational fluid dynamics
  • Electrohydrodynamics
  • Fluctuating hydrodynamics
  • Low Mach number methods
  • Multicomponent diffusion
  • Navier-Stokes equations
  • Nernst-Planck equations

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

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