par Hurwitz, Heinz Dieter 
;Sanfeld, Albert ;Steinchen, Annie
Référence Electrochimica acta, 9, 7, page (929-961)
Publication Publié, 1964-07
;Sanfeld, Albert ;Steinchen, Annie Référence Electrochimica acta, 9, 7, page (929-961)
Publication Publié, 1964-07
Article révisé par les pairs
| Résumé : | By the application of a local thermodynamic formulation of electrochemical potentials in polarized systems, we calculate the distribution function of charged particles in the diffuse layer. Besides the classical electrostatic work, this function takes into account terms corresponding to (1) the polarization of the system by the ions, (2) the electrostriction and the specific molar volume of the particles, (3) the dielectric saturation in the interfacial electrical field, (4) the stabilizing influence of the ionic atmospheres of the adsorbed particles. By integrating the Poisson equation associated with the calculated distribution function, one obtains the charge density and differential capacitance of the diffuse part of the double layer and also the surface excess of the ionic species in the double layer. The results are discussed on the basis of the Gouy-Chapman model and the experimental curves of Grahame; they help to throw some more light on a number of observed phenomena. Finally, the influence of the diffuse layer on the formation of ion pairs is shown. © 1964. |
