Title: From the bulk electrolyte solution to the electrochemical interface
Author(s):

H. Cachet (CNRS, UMR 8235, Laboratoire Interfaces et Systèmes Electrochimiques, 4 Place Jussieu, F-75005 Paris, France; Sorbonne Universités, UPMC, Université Paris 06, UMR 8235, LISE, 4, Place Jussieu, F-75005 Paris, France)

This paper is aiming at presenting some relevant contributions of Jean-Pierre Badiali during the first ten years of his growing scientific activity. This presentation does not contain new materials but is based on a number of selected papers published in the seventies, a part of them written in French. The presentation is organized around three points. The first point, corresponding to his PhD thesis, is concerned with the study of ion-solvent and ion-ion interactions in a solution using complex dielectric permittivity measurements in the Hertzian and microwave frequency range. The second one is concerned with an analysis of the ion pair absorption band observed in the far infrared region in terms of an interionic potential energy. The third one is concerned with the metal-solution interface and his significant advances on (i) the Lippmann equation linking electrocapillary and electrical measurements and (ii) the contribution of the metal to the differential interfacial capacity.

Key words: dielectric spectroscopy, ionic conductivity, surface tension, interfacial capacitance
PACS: 71-10.Ay, 73-20.At, 77-22, 78-30.cd, 82-45.Fk

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