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Modeling of Surface Segregation Effects Observed on Renewed Electrodes of Eutectic Alloysстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Дата последнего поиска статьи во внешних источниках: 30 октября 2013 г.
- Авторы: Safonov V.A., Choba M.A.
- Журнал: ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE
- Том: 227
- Номер: 8
- Год издания: 2013
- Первая страница: 1159
- Последняя страница: 1172
- DOI: 10.1524/zpch.2013.0363
- Аннотация: Experimental data on the transients of the electric double layer (EDL) capacitance measured after the mechanical renewal of the surface of electrodes of eutectic Sn-Pb and Ag-Bi alloys with small concentrations of second components at the interface with sodium fluoride solutions are analyzed and generalized. The observed transients are associated with the surface segregation of second components of alloys at the boundary with the solution. Phenomenological models of the electrode/solution interface which make it possible to calculate the surface coverage of the metal phase with different alloy components in different times after the renewal are proposed and substantiated. It is shown that the kinetics of surface segregation of lead and bismuth atoms at the alloy electrode interfaces with electrolyte solutions can be described in the first approximation by a model of nonsteady-state surface diffusion.
- Добавил в систему: Чоба Мария Алексеевна