Electrochemical behavior of hafnium in (NaCl–KCl–NaF–HfO2) molten salt

DOI

10.2991/ifeesm-17.2018.289How to use a DOI?

Keywords

NaCl-KCl-NaF-HfO2, Hafnium, Electrochemical reduction mechanism, Electro crystallization process

Abstract

The electrochemical reaction mechanism and electro crystallization process of hafnium in the NaCl-KCl-NaF-HfO2 molten salt were examined at 973K by means of cyclic voltammetry, chronopotentiometry, and chronoamperometry techniques. The results show that the electrochemical reduction mechanism of hafnium in the NaCl-KCl-NaF-HfO2 molten salt system is Hf4++4e Hf. The electro crystallization process of hafnium is found to be an instantaneous hemispheroid three-dimensional nucleation process and the hafnium ion diffusion coefficient of 4.744×10-4cm2 s-1 is tested in this study.

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  - Yu Bo
AU  - Hui-Rong Li
AU  - Mei-Le Deng
AU  - Yun-Gang Li
PY  - 2018/02
DA  - 2018/02
TI  - Electrochemical behavior of hafnium in (NaCl–KCl–NaF–HfO2) molten salt
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 1588
EP  - 1595
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.289
DO  - 10.2991/ifeesm-17.2018.289
ID  - Ma2018/02
ER  -