Author/Editor		Bohinc, Klemen; Iglič, Aleš; Slivnik, Tomaž; Fošnarič, MIha; Gimsa, Jan; Kralj-Iglič, Veronika
Title		Effect of ion size on the properties of spherical electric double layers
Type		članek
Source		In: Zajc B, editor. Zbornik 11. mednarodne elektrotehniške in računalniške konference ERK 2002. Zvezek A. Vabljena predavanja, elektronika, telekomunikacije, avtomatika, simulacije, identifikacije, modeliranje, močnostna elektrotehnika, merilna tehnika - ISEMEC 2002; 2002 sep 23-25; Portorož. Ljubljana: Slovenska sekcija IEEE, Region 8,
Publication year		2002
Volume		str. 319-22
Language		eng
Abstract		The effect of counterion sixe on the electric properties of the electrolyte solution in contact, with charygd surfaces of spherical symmetry is considered. Electrostatic interaction is considered by means of the mean electrostatic field while the finite size of ions and solvent molecules have been described by the excluded volume effect within the lattice statistics. Different sizes of the ions are described by different values of the lattice constant. In the model an increasing ion size is reducing the number of counterions near the charged surface, subsequently leading to an increased electrostatic potential. The number density of counterions close to the charyed surface is saturating at large surface charge densities. Our results coincide with published experimental data emphasizing the importance of the excluded volume effect.
Descriptors		ELECTROLYTES IONS PARTICLE SIZE MEMBRANES, ARTIFICIAL ELECTROSTATICS MODELS, THEORETICAL