QR-код документа
N94
Nurdillayeva, R. N.
Electrochemical behavior of cupronickel electrode in acidic media. [Текст] / R. N. Nurdillayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 38-46
Рубрики: chemistry
Кл.слова (ненормированные):
cupronickel -- Cu-Ni alloy -- alternating current -- titanium electrode -- hydrochloric acid -- electrolysis -- current density -- current efficiency
Аннотация: The electrochemical properties of the cupronickel electrode polarized by an alternating current in an aqueous solution of hydrochloric acid were studied for the first time. The electrochemical dissolution of cupronickel was carried out in a polarization mode with a frequency of 50 Hz in pairs with a titanium electrode. The current efficiency of dissolution of Cu-Ni alloys dependence on the current density at the titanium (20-120 kA/m2) and cupronickel (200-1200 A/m2) electrodes, the concentration of a hydrochloric acid solution (0.5-5.0 M), the electrolysis duration (0.5-1.75 h) and the alternating current effect (50-300 Hz) were considered. It was observed that the current efficiency of the alloy dissolution decreases linearly with increasing current density at the cupronickel electrode, while the current density at the titanium electrode passes through a maximum value at 60 kA/m2.
Держатели документа:
WKU
Доп.точки доступа:
Abdilda, N. Sh.
Bayeshov, A.B.
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