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Estimation of the specific adsorption of I-, Br-, and Cl- ions in systems (Tl-Ga)/[N-methylformamide + 0.1m M KA + 0.1(1 - M) M KClO4] based on the analysis of two-dimensional pressure curves obtained by integration of differential capacitanceстатья
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Дата последнего поиска статьи во внешних источниках: 7 декабря 2013 г.
- Авторы: Emets V.V., Damaskin B.B.
- Журнал: Russian Journal of Electrochemistry
- Том: 49
- Номер: 11
- Год издания: 2013
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1013
- Последняя страница: 1019
- DOI: 10.1134/S1023193513110062
- Аннотация: By means of an ac bridge, the differential capacitance vs. potential curves are measured in systems (Tl-Ga)/[N-MF + 0.1m M KI + 0.1(1 - m) M KClO 4], (Tl-Ga)/[N-MF + 0.1m M KBr + 0.1(1 - m) M KClO4], and (Tl-Ga)/[N-MF + 0.1m M KCl + 0.1(1 - m) M KClO4] for the following fractions m of the surfaceactive anion: 0, 0.02, 0.05, 0.1, 0.2, 0.5, and 1. Based on the analysis of curves of two-dimensional pressure found by integrating the differential capacitance, it is shown that the data on the specific adsorption of anions I-, Br-, and Cl- in the mentioned systems can be quantitatively described by the Frumkin isotherm. The main adsorption parameters of I-, Br-, and Cl- anions at the (Tl-Ga)/N-MF interface are determined. It is found that on the (Tl-Ga)/N-MF interface, the same as on the (In-Ga)/N-MF interface, the adsorption energy of ions increases in the sequence Cl- < Br - < I-, in contrast to the Ga/N-MF interface, where the energy increases in the reverse sequence: I- ? Br- < I-. For all halide ions (Hal-), the adsorption energy and the energy of metal-Halinteraction increase in the sequence (Tl-Ga) < (In-Ga) < Ga.
- Добавил в систему: Дамаскин Борис Борисович