Electroreduction of Mo(VI) Compounds in Ammonium–Acetate Solutions
- Авторы: Kuznetsov V.V.1, Volkov M.A.1, Zhirukhin D.A.1, Filatova E.A.1
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Учреждения:
- Mendeleev University of Chemical Technology of Russia
- Выпуск: Том 54, № 11 (2018)
- Страницы: 1006-1011
- Раздел: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/189957
- DOI: https://doi.org/10.1134/S1023193518130256
- ID: 189957
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Аннотация
The kinetics of cathodic reactions in ammonium acetate solutions proposed for electrodeposition of metallic molybdenum was studied. The reduction of molybdenum compounds in the oxidation state +6 was found to occur stepwise according to the scheme Mo(VI) → Mo(V) → Mo(III). The waves observed on the polarograms are complicated by adsorption effects. The reduction of molybdenum to the metallic state is possible only at high negative potentials of the cathode; under the polarographic analysis conditions, this wave was not recorded. The deposit that formed on the surface of the solid cathode during cathodic polarization (i = 0.5 A cm–2) contains both molybdenum in the metallic state and molybdenum oxides. The ratio between the electrolysis products depends on the temperature of solution: a decrease in the temperature leads to an increase in the amount of metallic molybdenum.
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Об авторах
V. Kuznetsov
Mendeleev University of Chemical Technology of Russia
Автор, ответственный за переписку.
Email: vitkuzn1@mail.ru
Россия, Moscow, 125047
M. Volkov
Mendeleev University of Chemical Technology of Russia
Email: vitkuzn1@mail.ru
Россия, Moscow, 125047
D. Zhirukhin
Mendeleev University of Chemical Technology of Russia
Email: vitkuzn1@mail.ru
Россия, Moscow, 125047
E. Filatova
Mendeleev University of Chemical Technology of Russia
Email: vitkuzn1@mail.ru
Россия, Moscow, 125047
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