Electrochemistry of zirconium in molten chlorides

Title

Electrochemistry of zirconium in molten chlorides

 Author

Xu, L. (Northeastern University China)
Xiao, Y (Anhui University of Technology)
Xu, Q (Shanghai University)
Song, Qiushi (Northeastern University China)
Yang, Y. (TU Delft (OLD) MSE-3; Anhui University of Technology) ORCID 0000-0003-4584-6918

 Date

2017

 Abstract

In this work, the electrochemical behavior of zirconium was studied on an inert molybdenum electrode at 550 °C in a LiCl-KCl-K2ZrF6 molten salt system, which is considered as an ideal electrolyte for the zirconium electrorefining process. Several transient electrochemical techniques were used such as cyclic voltammetry, chronopotentiometry, square wave voltammetry, and open circuit chronopotentiometry. The reduction of Zr (IV) was determined to follow a two-step mechanism of Zr (IV)/Zr (II) and Zr (II)/Zr. The diffusion coefficient of Zr (IV) was investigated with cyclic voltammetry and chronopotentiometry, and the results turned out to be in fair agreement from the both methods, as to be 4.26×10-5 and 4.98×10-5 cm2/s, respectively. The present study aims to provide a theoretical reference for the Zr electrorefining process.


 Subject

Electrochemistry
Molten salt
Redox mechanism
Zirconium

 To reference this document use:

http://resolver.tudelft.nl/uuid:16eb02a3-9208-4235-804d-2e7b18db36dd

 DOI

https://doi.org/10.20964/2017.07.51

 ISSN

1452-3981

 Source

International Journal of Electrochemical Science, 12 (7), 6393-6403

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2017 L. Xu, Y Xiao, Q Xu, Qiushi Song, Y. Yang
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