On the Influence of Ion Excluded Volume (Steric) Effects on the Double-Layer Polarization of a Nonconducting Spherical Particle in an AC Field

2010 ◽  
Vol 114 (18) ◽  
pp. 8389-8397 ◽  
Author(s):  
Hui Zhao
Keyword(s):  
Spherical Particle ◽  
Double Layer ◽  
Steric Effects ◽  
Excluded Volume ◽  
Ac Field

Excluded volume driven counterion condensation inside nanotubes in a concave electrical double layer model

2005 ◽  
Vol 67 (1) ◽  
pp. 91-99 ◽  
Author(s):  
Klemen Bohinc ◽  
Jan Gimsa ◽  
Veronika Kralj-Iglič ◽  
Tomaž Slivnik ◽  
Aleš Iglič
Keyword(s):  
Double Layer ◽  
Electrical Double Layer ◽  
Excluded Volume ◽  
Counterion Condensation ◽  
Layer Model ◽  
Double Layer Model

The electrophoretic mobility of large colloidal particles

1981 ◽  
Vol 59 (13) ◽  
pp. 1878-1887 ◽  
Author(s):  
Richard Wyndham O'Brien ◽  
Robert John Hunter
Keyword(s):  
Spherical Particle ◽  
Electrophoretic Mobility ◽  
Double Layer ◽  
Reliable Method ◽  
Colloidal Particles ◽  
Analytical Approximation ◽  
Large Spherical Particle ◽  
Computer Calculations ◽  
Complicated Nature ◽  
Large Spherical

Analytical approximation formulae linking ζ potential and electrophoretic mobility have been derived for a variety of limiting conditions. In this paper we present a simplified derivation of an equation first established by Dukhin and his collaborators for a large spherical particle with a thin double layer. Although potentially a very useful expression it has been little used to date, partly because of the complicated nature of Dukhin's derivation and partly because of the lack of a reliable method of testing its validity. The expression compares very favourably with the computer calculations of O'Brien and White, provided κa is sufficiently large.

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