Fluctuating Hydrodynamics and Debye-Hückel-Onsager Theory for Electrolytes

Journal Article · Thu Oct 25 00:00:00 EDT 2018 · Current Opinion in Electrochemistry

DOI:https://doi.org/10.1016/j.coelec.2018.09.004· OSTI ID:1526576

Donev, Aleksandar ^[1]; Garcia, Alejandro L. ^[2]; Péraud, Jean-Philippe ^[3]; Nonaka, Andrew J. ^[3]; Bell, John B. ^[3]

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1. New York Univ. (NYU), NY (United States). Courant Inst. of Mathematical Sciences
2. San Jose Univ., CA (United States). Dept. of Physics and Astronomy
3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Center for Computational Science and Engineering

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.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• Grant/Contract Number: AC02-05CH11231
• OSTI ID: 1526576
• Journal Information: Current Opinion in Electrochemistry, Vol. 13, Issue C; ISSN 2451-9103
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
fluctuating hydrodynamics
computational fluid dynamics
Navier-Stokes equations
low Mach number methods
multicomponent diffusion
electrohydrodynamics
Nernst-Planck equations