Electrochemical behavior of zirconium in the (NaCl-KCl-NaF- ZrO2) molten salt

DOI

10.2991/ifeesm-17.2018.290How to use a DOI?

Keywords

NaCl-KCl-NaF-ZrO2, Zirconium, Electrochemical reduction mechanism, Electro crystallization process

Abstract

As a refractory metal, zirconium has a wide range of applications in many fields. The method of electrode position to produce metal zirconium is more available, it is important to study the behavior of zirconium in the molten salt. The electrochemical reaction mechanism and electrocrystallization process of zirconium in the NaCl–KCl–NaF–ZrO2 molten salt were studied at 973 K by means of cyclic voltammetry, chronopotentiometry, and chronoamperometry techniques. The results show that the electrochemical reaction process of zirconium in the NaCl–KCl–NaF–ZrO2 molten salt system is a reversible process and controlled by ion diffusion rate. Zirconium ion in this system is reduced to Zr(0) in only one step and the diffusion coefficient of Zr ion in the system is 3.274×10-5cm2 s-1. The electrocrystallization process of zirconium is an instantaneous hemispheroid three-dimensional nucleation process.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Tao Ma
AU  - Zhi-Jie Wu
AU  - Hui-Rong Li
AU  - Yu-Peng Cao
AU  - Yun-Gang Li
PY  - 2018/02
DA  - 2018/02
TI  - Electrochemical behavior of zirconium in the (NaCl-KCl-NaF- ZrO2) molten salt
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 1596
EP  - 1603
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.290
DO  - 10.2991/ifeesm-17.2018.290
ID  - Ma2018/02
ER  -