Short communication, Note
https://doi.org/10.5599/jese.2422
Rhenium exchange current density and transfer coefficient in the KF-KBF4-B2O3 molten salt
Aleksandr A. Chernyshev
; Institute of High Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620137, Russia
Alexey Apisarov
; Institute of High Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620137, Russia
Andrey Isakov
; Institute of High Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620137, Russia
Yury Zaikov
; Institute of High Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620137, Russia
Abstract
The present paper is devoted to the study of the exchange current density of Re transfer in the high-temperature molten salt system using the Tafel dependencies. This data allowed precise information on the electrochemical behavior of the reaction mechanism. The exchange current density of the redox Re0/Re7+ pair was found to be 381.27 mA cm-2 at 773 K at 1 wt.% of KReO4 in KF-KBF4-B2O3 molten salt. The cathode transfer coefficient was calculated using the inclination angle tangent of Tafel graphs.
Keywords
Refractory metal; electroreduction; electrolysis; Tafel plots; kinetic parameters
Hrčak ID:
321328
URI
Publication date:
1.10.2024.
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