The effects of unequal ionic sizes for an electrolyte in a charged slit

Asymmetric size of ions and orientational ordering of water dipoles in electric double layer model - an analytical mean-field approach

“…Further generalisation of the modified GI given in this paper model should include also the Helmholtz/Stern layer taking into account unequal distances of closest approach for cations and anions ions [25,[53][54][55]. This modification would change the relative height for both maxima of the differential capacitance camel-like curve [25] and also move them to higher magnitudes of the potential/voltage [25,56].…”

Monte Carlo simulation of the electrical properties of electrolytes adsorbed in charged slit-systems

“…The reference point for the electrical potential then can be set in this bulk region. If the walls, however, are close to each other so that the two DLs overlap (slit), the bulk region disappears [24][25][26][27][28][29][30][31][32][33][34]. Slits are generally simulated in the grand canonical (GC) ensemble, where the electrolyte in the slit is in equilibrium with a virtual bulk phase represented by its temperature and the chemical potentials of the ionic species.…”

“…The studies for electrolytes confined in a slit considered only a single slit (we will call it the "lonely slit") in equilibrium with a bulk in the GC ensemble [24][25][26][27][28][29][30][31][32][33][34]. In this work we are primarily concerned with the electrical properties of the slit.…”

Equilibrium Electric Double Layer of Charged Spherical Colloidal Particles: Effect of Different Distances of Minimum Ion Approach to The Particle Surface

“…This limiting local concentration behavior can be expressed by means of a Langmuir type function: [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] where K i are integration constants (Appendix A), which are generally different for each ionic species. Their values are equal to the value of the ionic concentrations at spatial points where the electric potential is zero.…”

“…Roughly, two types of methods have been used to include ion interactions into the theoretical model: microscopic descriptions of the system with different approach levels [9][10][11][12][13][14][15] and phenomenological theories using macroscopic differential equations to describe the behavior of the system. [16][17][18][19][20][21][22][23][24][25][26][27][28][29] Microscopic descriptions have the advantage of precisely representing the interactions responsible for the macroscopic behavior of the system, but only in equilibrium. On the contrary, phenomenological theories, less strict in the description of the interactions, make it possible to analyze the system behavior both in equilibrium and perturbed by an external signal.…”