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Adsorption of Cl-, Br-, and I- ions from 0.1 M solutions in methanol on Ga, (In-Ga), and (Tl-Ga) electrodesстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 декабря 2014 г.
- Авторы: Emets V.V., Damaskin B.B.
- Журнал: Russian Journal of Electrochemistry
- Том: 50
- Номер: 3
- Год издания: 2014
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 201
- Последняя страница: 207
- DOI: 10.1134/S1023193514030057
- Аннотация: Adsorption of Cl-, Br-, and I- (Hal -) ions from 0.1 M solutions in methanol (MeOH) is studied on the liquid renewable Ga, (In-Ga), and (Tl-Ga) electrodes by the methods of differential capacitance and jet electrode. It is shown that the adsorption parameters and the series of surface activity of halide ions in MeOH essentially depend on the metal nature. On the (In-Ga) and (Tl-Ga) electrodes, as well as on the Hg electrode, the surface activity of halide ions increases in the series: Cl- < Br- < I-; on the Ga electrode, it varies in another series: Br- < Cl- < I-. The data for the Ga/MeOH interface support the result, which was first obtained on the Ga/N-methyl formamide (N-MF) interface, that the effect of inversion of surface activity series can be observed not only in the aprotic solvents, but also in the protic solvents. The data, which were obtained in MeOH, are compared with the corresponding data, which were obtained in N-MF, dimethyl formamide (DMF), acetonitrile (AN), and water. For Ga, (In-Ga), and (Tl-Ga) electrodes, the adsorption of Hal- varies in the series: H2O < MeOH ≈ N-MF < DMF < AN. The data obtained in MeOH indicate that the energy of metal-Hal- interaction (О”G M-Hal) increases in the series (Tl-Ga) < (In-Ga) < Ga as the electronic work function increases. This is in agreement with the data, which were obtained in other solvents, and is the evidence for the donor-acceptor nature of metal-Hal- interaction, where the Hal- ions are the donors of electron pair with respect to the metal. В© 2014 Pleiades Publishing, Ltd.
- Добавил в систему: Дамаскин Борис Борисович