| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Thermochemical Measurements of Electroactive Species in Molten Salts using Cathodic Decomposition Electrodes |
| Author(s) |
Timothy Lichtenstein, Jarrod Gesualdi, Eva Schneiderlochner, Krista L. Hawthorne |
| On-Site Speaker (Planned) |
Timothy Lichtenstein |
| Abstract Scope |
Electrochemical measurements to determine thermochemical property values of molten salts require the use of well-defined standard reference electrodes for effective reproducible measurements. Conventional standard reference electrodes used in molten salt systems are based upon the anodic decomposition of a molten salt constituent, which can generate corrosive gases that react with reference electrode materials and cause instability in the measurement. Furthermore, emerging salt systems may not have well-characterized reference electrodes or contain mixed anions that complicate thermochemical measurements. We have demonstrated the use of the Cathodic Decomposition Electrode (CDE) in chloride and fluoride systems for thermochemical measurements. Here, we have validated potentials measured with the CDE using transient electrochemical measurements, performed electromotive force measurements to obtain high quality thermochemical values of analytes in molten salts, and demonstrated CDEs as references for transient measurements of analytes. Thermochemical calculations and methods for CDE use in other molten salt systems will also be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Pyrometallurgy, |