On the influence of ionic association on the capacitance of an electrical double layer

Myroslav Holovko, Vitalyj Kapko, Douglas Henderson, D. Boda

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

The concept of ionic association is applied to give an explanation of the anomalous temperature dependence of the capacitance of the electrical double layer. It is shown that, except in the intermediate region where the temperature derivative of the capacitance changes sign, a Bjerrum-like correction of the mean spherical approximation, with Ebeling's expression for the association constant, satisfactorily reproduces the computer simulation data at high and low temperatures. Including polarization effects that arise from ionic pairs improves the description in this region.

Original languageEnglish
Pages (from-to)363-368
Number of pages6
JournalChemical Physics Letters
Volume341
Issue number3-4
DOIs
Publication statusPublished - Jun 22 2001

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Capacitance
capacitance
computerized simulation
Temperature
temperature dependence
polarization
approximation
Polarization
Derivatives
Computer simulation
temperature

ASJC Scopus subject areas

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

Cite this

On the influence of ionic association on the capacitance of an electrical double layer. / Holovko, Myroslav; Kapko, Vitalyj; Henderson, Douglas; Boda, D.

In: Chemical Physics Letters, Vol. 341, No. 3-4, 22.06.2001, p. 363-368.

Research output: Contribution to journalArticle

Holovko, Myroslav ; Kapko, Vitalyj ; Henderson, Douglas ; Boda, D. / On the influence of ionic association on the capacitance of an electrical double layer. In: Chemical Physics Letters. 2001 ; Vol. 341, No. 3-4. pp. 363-368.
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