Adsorption of dicarboxylic ions on the (210) gold face from solutions at constant cationic strength

Adsorption of dicarboxylic ions on polycrystalline gold electrode from solutions at constant cationic strength

“…3 it can be concluded that the Ma anions are more strongly adsorbed when compared to the Su anions. A similar situation was found for the (210) gold electrode but here the difference in u i was larger (1). For the (31 1) gold electrode, however, Su anions are more strongly adsorbed than Ma anions (2).…”

“…Moreover, the ui(cr) curves are similar to those observed for various systems of mixed electrolyte solutions, both at constant ionic (10-13) and constant cationic strength (1,2). In other words, the inversion of variation of a' as a function of concentration of anions under investigation is observed and shown in Fig.…”

“…On comparing present results with those obtained on single crystals of gold (1,2), it should be mentioned that the C(E) curves are different. The main difference is the lack of a peak in the positive potential range for single crystals.…”

“…The adsorption of dicarboxylic anions on single crystals of gold so far has been the object of two quantitative studies (1,2). In ref.…”

“…In ref. 2, thermodynamic analysis of the adsorption of dicarboxylic anions on a (3 1 1) face of gold, carried out using the same method of calculation, shows that the Su anions are more strongly adsorbed than Ma anions. These results were interpreted not only in terms of the geometric structure and electric properties of a given ion but also of the arrangement of metal atoms on the electrode surface.…”