Ionic diffusion in dynamically-disordered materials: Motion on a renewing, percolative lattice

Mark C. Lonergan, A. Nitzan, Mark A Ratner

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Diffusion in concentrated ionic solutions involves ionic motion subject both to interionic Coulomb forces and to the fluctuating potentials arising from solvent motion. To study how these reflect themselves in the ion transport, we examine a problem in which Coulomb particles hop on a lattice that is percolative (some jumps are forbidden) and renewing (the forbidden jumps evolve in time). Diffusivity and tracer correlation are both effected by both renewal and Coulomb interaction. Coulomb effects can destroy the validity of the dynamic percolation result that the diffusivity is proportional to the renewal rate; non-exponential decay of the energy fluctuation correlation function is observed.

Original languageEnglish
Pages (from-to)269-288
Number of pages20
JournalJournal of Molecular Liquids
Volume60
Issue number1-3
DOIs
Publication statusPublished - 1994

Fingerprint

ionic diffusion
diffusivity
tracers
Coulomb interactions
decay
Ions
ions
interactions
energy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Atomic and Molecular Physics, and Optics

Cite this

Ionic diffusion in dynamically-disordered materials : Motion on a renewing, percolative lattice. / Lonergan, Mark C.; Nitzan, A.; Ratner, Mark A.

In: Journal of Molecular Liquids, Vol. 60, No. 1-3, 1994, p. 269-288.

Research output: Contribution to journalArticle

@article{07a08ab07d9645128b21d9f2e2df40c6,
title = "Ionic diffusion in dynamically-disordered materials: Motion on a renewing, percolative lattice",
abstract = "Diffusion in concentrated ionic solutions involves ionic motion subject both to interionic Coulomb forces and to the fluctuating potentials arising from solvent motion. To study how these reflect themselves in the ion transport, we examine a problem in which Coulomb particles hop on a lattice that is percolative (some jumps are forbidden) and renewing (the forbidden jumps evolve in time). Diffusivity and tracer correlation are both effected by both renewal and Coulomb interaction. Coulomb effects can destroy the validity of the dynamic percolation result that the diffusivity is proportional to the renewal rate; non-exponential decay of the energy fluctuation correlation function is observed.",
author = "Lonergan, {Mark C.} and A. Nitzan and Ratner, {Mark A}",
year = "1994",
doi = "10.1016/0167-7322(94)00749-7",
language = "English",
volume = "60",
pages = "269--288",
journal = "Journal of Molecular Liquids",
issn = "0167-7322",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Ionic diffusion in dynamically-disordered materials

T2 - Motion on a renewing, percolative lattice

AU - Lonergan, Mark C.

AU - Nitzan, A.

AU - Ratner, Mark A

PY - 1994

Y1 - 1994

N2 - Diffusion in concentrated ionic solutions involves ionic motion subject both to interionic Coulomb forces and to the fluctuating potentials arising from solvent motion. To study how these reflect themselves in the ion transport, we examine a problem in which Coulomb particles hop on a lattice that is percolative (some jumps are forbidden) and renewing (the forbidden jumps evolve in time). Diffusivity and tracer correlation are both effected by both renewal and Coulomb interaction. Coulomb effects can destroy the validity of the dynamic percolation result that the diffusivity is proportional to the renewal rate; non-exponential decay of the energy fluctuation correlation function is observed.

AB - Diffusion in concentrated ionic solutions involves ionic motion subject both to interionic Coulomb forces and to the fluctuating potentials arising from solvent motion. To study how these reflect themselves in the ion transport, we examine a problem in which Coulomb particles hop on a lattice that is percolative (some jumps are forbidden) and renewing (the forbidden jumps evolve in time). Diffusivity and tracer correlation are both effected by both renewal and Coulomb interaction. Coulomb effects can destroy the validity of the dynamic percolation result that the diffusivity is proportional to the renewal rate; non-exponential decay of the energy fluctuation correlation function is observed.

UR - http://www.scopus.com/inward/record.url?scp=0028462431&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028462431&partnerID=8YFLogxK

U2 - 10.1016/0167-7322(94)00749-7

DO - 10.1016/0167-7322(94)00749-7

M3 - Article

AN - SCOPUS:0028462431

VL - 60

SP - 269

EP - 288

JO - Journal of Molecular Liquids

JF - Journal of Molecular Liquids

SN - 0167-7322

IS - 1-3

ER -