| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Enhanced Electrochemical Method for Detecting Dissolved Non-metallic Contaminants in Molten Salts |
| Author(s) |
Nathan Daniel Bradshaw, Antoine Allanore |
| On-Site Speaker (Planned) |
Nathan Daniel Bradshaw |
| Abstract Scope |
Dissolved non-metallic species, especially of O and H, are reported to have a key role in materials stability in high temperature chloride and fluoride molten salts. In this work we aim to measure the activities of these dissolved impurities in molten salts using electrochemistry. Specifically, we implement Fourier Transformed - Alternating Current Voltammetry. FT-ACV has shown improved measurement accuracy and more complete analysis of electrochemical systems than previously established techniques when used to study metal electrodeposition but remains un-validated for dissolved gas. Herein, molten NaCl-KCl is used as a test system to validate the analytical promises of this approach, in particular the possibility to avoid reliance on a true reference electrode. We also compare the effectiveness of multiple working and counter electrode materials. The results suggest a possible path for on-line monitoring of corrosion-driving impurities in applications which are otherwise difficult to access, including molten salt-based advanced energy applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Other, Other |