Elsevier

Chemical Physics

Volume 111, Issue 2, 15 January 1987, Pages 223-240
Chemical Physics

A local density functional approximation for the ion distribution near a charged electrode in the restricted primitive model electrolyte

https://doi.org/10.1016/0301-0104(87)80136-2Get rights and content

Abstract

A local HNC/MSA approximation is developed and applied to the 1:1 restricted primitive model electrolyte. Improvement of ion density profiles in front of a charged electrode is achieved by employing ion—ion direct correlation functions from homogeneous systems of non-neutral composition as found locally in the inhomogeneous double layer. This approximation is related to the density functional approach for inhomogeneous fluids. The local HNC/MSA method predicts, at higher surface charges, layering of counterions and charge inversion as seen in Monte Carlo data, a strong increase of the surface potential with charging and a maximum in the double layer capacitance.

References (42)

  • D. Henderson et al.

    Chem. Phys. Letters

    (1979)
  • J. Callaway et al.

    Solid State Phys.

    (1984)
  • P. Nielaba et al.

    Chem. Phys. Letters

    (1985)
  • M. Parrinello et al.

    Chem. Phys. Letters

    (1979)
  • G. Gouy

    J. Phys. Radium

    (1910)
  • D.L. Chapman

    Phil. Mag.

    (1913)
  • O. Stern

    Z. Elektrochem.

    (1924)
  • C.W. Outhwaite

    Mol. Phys.

    (1974)
  • C.W. Outhwaite et al.

    J. Chem. Soc. Faraday Trans. II

    (1983)
  • D. Henderson et al.

    Mol. Phys.

    (1976)
  • D. Henderson et al.

    J. Chem. Phys.

    (1978)
  • S.L. Carnie et al.

    J. Chem. Phys.

    (1981)
  • S.L. Carnie et al.

    Mol. Phys.

    (1984)
  • T.L. Croxton et al.

    Mol. Phys.

    (1981)
  • L. Blum et al.

    J. Phys. Chem.

    (1983)
  • S.L. Carnie et al.

    Advan. Chem. Phys.

    (1984)
  • G.M. Torrie et al.

    J. Chem. Phys.

    (1980)
  • G.M. Torrie et al.

    J. Chem. Phys.

    (1982)
  • G.M. Torrie et al.

    J. Chem. Phys.

    (1984)
  • W.F. Saam et al.

    Phys. Rev.

    (1977)
  • R. Evans et al.

    Mol. Phys.

    (1983)
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