Study of the Adsorption of the IFKhAN-92 Inhibitor on the Surface of Chromium–Nickel Steel from Hydrochloric and Sulfuric Acid Solutions by Ellipsometry
- Авторлар: Andreeva N.1, Kuznetsov D.1, Avdeev Y.1
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Мекемелер:
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
- Шығарылым: Том 55, № 7 (2019)
- Беттер: 1280-1286
- Бөлім: Corrosion Inhibitors
- URL: https://journals.rcsi.science/2070-2051/article/view/205737
- DOI: https://doi.org/10.1134/S2070205119070025
- ID: 205737
Дәйексөз келтіру
Аннотация
The method of reflective ellipsometry has been used to study the adsorption of the IFKhAN-92 inhibitor that is a triazole derivative on 12Kh18N10T nickel–chromium steel from dilute solutions of HCl and H2SO4 (t = 20 ± 2°C). It is shown that the adsorption process of this inhibitor is satisfactorily described by Temkin isotherm; its parameters are calculated. The values of free energy of adsorption of the inhibitor determined on the basis of this isotherm are ≈55 kJ/mol, which allows one to conclude about the chemisorption nature of the interaction of triazole molecules and the metal surface. An increase in the adsorption of the IFKhAN-92 inhibitor on chromium–nickel steel in H2SO4 solution with the addition of rhodanide-anions has been noted.
Негізгі сөздер
Авторлар туралы
N. Andreeva
Frumkin Institute of Physical Chemistry and Electrochemistry,Russian Academy of Sciences
Email: avdeevavdeev@mail.ru
Ресей, Moscow, 119071
D. Kuznetsov
Frumkin Institute of Physical Chemistry and Electrochemistry,Russian Academy of Sciences
Email: avdeevavdeev@mail.ru
Ресей, Moscow, 119071
Ya. Avdeev
Frumkin Institute of Physical Chemistry and Electrochemistry,Russian Academy of Sciences
Хат алмасуға жауапты Автор.
Email: avdeevavdeev@mail.ru
Ресей, Moscow, 119071