2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 9: Molten Salts and Ionic Liquids, Energy Production
| Editors: | Kongoli F, Gaune-Escard M, Turna T, Mauntz M, Dodds H.L. |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 390 pages |
| ISBN: | 978-1-987820-24-9 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
CD shopping page
Electrical Conductivity Of Molten (3licl-2kcl) - Cdcl2 Mixtures
Alexei Potapov1; Alexander Salyulev1; Vladimir Khokhlov1; Vladimir Shishkin1;1INSTITUTE OF HIGH TEMPERATURE ELECTROCHEMISTRY, Ekaterinburg, Russian Federation;
Type of Paper: Regular
Id Paper: 138
Topic: 13
Abstract:
At the present time, molten salt mixtures containing cadmium dichloride are widely used as reaction media for synthesizing nuclear materials as well as for obtaining semiconducting thin films.
In the present work, the electrical conductivity of 14 compositions of (3LiCl-2KCl) - CdCl2 mixtures was measured with increments of ~ 10 mol.% CdCl2 using capillary quartz cells with platinum electrodes. The concentration range of 0–10% has been studied in more detail because it is presumably the most important for practical purposes. In order to determine the onset of the crystallization temperature, the lower temperature of the measurements was set at 5–10 degrees below the liquidus temperature for all compositions. This allowed the liquidus line of the system to be plotted based on conductivity data. The upper temperature was 880-900 K. Molar conductivity and activation energy calculations were carried out. These showed that the molar conductivity of molten CdCl2 (106.6 S·cm2/mol) is greater than the conductivity of LiCl-KCl (84.74 S·cm2/mol at 600 0C) and that the activation energy gradually decreases from 13.8 kJ/mol (LiCl-KCl) to 10.2 kJ/mol (CdCl2), with a blurred broad maximum around 60 mol.% CdCl2 (600 0C).
The results were interpreted in terms of coexistence and mutual influence of the complexes formed by the Li+ and Cd2+ cations.
This work was supported by the Ministry of Education and Science of the Russian Federation, project No. 14.607.21.0084 (RFMEFI60714X0084).