Interfacial adsorption with molecular reorientation

Condensed film formation of binary mixtures of cetyltrimethylammonium bromide and cetyldimethylbenzylammonium chloride in a wide potential region at the mercury/electrolyte interface

“…6, this time is not enough for all the potentials. The time chosen was then 220 s. These C vs t curves show that there are a lot of possibilities during the adsorption and orientation of the molecules at the interface [3], but there are finally two possibilities when the films are formed, since the final equilibrium value have two different values, approximately 4 and 1.5 µF/cm 2 .…”

“…The bare mercury surface adsorbs the molecules up to a fully covered surface. During the adsorption the structure of the adsorbed layer changes, including the formation of ordered structures, and comprises different transformational phases in two or three dimensions [1][2][3]. In some cases, condensed films are formed in usually limited potential regions where very low capacitance values are observed [4,5].…”

Effect of deaeration on the adsorption of a mixture of cetyltrimethylammonium bromide and cetyldimethylbenzylammonium chloride at the mercury/electrolyte solution interface

“…The adsorption of surfactants to a mercury/solution interface is often studied by measuring the differential capacitance C of the double layer [5][6][7][8][9][10]. These measurements are closely related to an understanding of the structure and the interaction of the adsorbed species at the interface as well as the interaction between them and the electrode surface.…”