Effect of Cathodic Polarization on the Depassivation of Oxidized Nickel
- Авторы: Kuznetsova O.1, Levin A.1, Tsybin O.1, Sevost’yanov M.1, Bryukvin V.1, Bol’shikh A.1
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Учреждения:
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
- Выпуск: Том 2018, № 7 (2018)
- Страницы: 651-654
- Раздел: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/171997
- DOI: https://doi.org/10.1134/S0036029518070078
- ID: 171997
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Аннотация
The dissolution of nickel in sulfuric acid (100 g/L) is studied by cyclic voltammetry using intermediate cathodic polarization between cycles. The main laws of the joint effect of the potential (from –2.0 to ‒0.2 V) and the duration (32–1800 s) of cathode pulses on the metal depassivation are revealed. Anode nickel oxide films are found to disappear during cathodic polarization of the metal as a result of simultaneous processes of reduction and chemical dissolution of oxides in the electrolyte.
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Об авторах
O. Kuznetsova
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Email: levinn@imet.ac.ru
Россия, Moscow, 119334
A. Levin
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Автор, ответственный за переписку.
Email: levinn@imet.ac.ru
Россия, Moscow, 119334
O. Tsybin
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Email: levinn@imet.ac.ru
Россия, Moscow, 119334
M. Sevost’yanov
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Email: levinn@imet.ac.ru
Россия, Moscow, 119334
V. Bryukvin
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Email: levinn@imet.ac.ru
Россия, Moscow, 119334
A. Bol’shikh
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Email: levinn@imet.ac.ru
Россия, Moscow, 119334
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