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The use of ellipsometry for studying adsorption of organic corrosion inhibitors from aqueous solutions on metals. Review. Part 1. Methods for obtaining adsorption isothermsстатья
- Авторы: Andreeva N.P., Kuznetsov Yu I., Shikhaliev Kh S.
- Журнал: International Journal of Corrosion and Scale Inhibition
- Том: 11
- Номер: 4
- Год издания: 2022
- Издательство: Некоммерческое партнерство коррозионистов "Вакор"
- Местоположение издательства: Москва
- Первая страница: 1716
- Последняя страница: 1733
- DOI: 10.17675/2305-6894-2022-11-4-20
- Аннотация: The review is devoted to the application of the ellipsometry method to study the adsorption of organic corrosion inhibitors (CIs) from solutions on the surfaces of metals and alloys. Part 1 of the review focuses on the basics of the method and discusses the necessary simplifications that should be taken into account in the study of real reflective systems. A rationale for using the ellipsometric method to determine small thicknesses of surface layers around 1 nm is given, since the basic equation of ellipsometry is derived for bulk phases. Various methods for obtaining adsorption isotherms from solutions are discussed and a brief analysis of theoretical adsorption isotherms is given. Particular attention is paid to the logarithmic Temkin isotherm. This isotherm is valid in the region of medium coverages (0.2<Θ<0.8) and at sufficiently large heterogeneous factors f (>4). The modified Temkin isotherm proposed by S.F. Timashev is valid in the entire range 0<Θ<1 and for f>0. Articles are cited in which ellipsometry is used to determine the thicknesses of CI surface layers.
- Добавил в систему: Андреева Нина Павловна