| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Materials Compatibility and Potential Stability of Reference Electrodes for Molten FLiBe |
| Author(s) |
Francesco Carotti, Raluca Olga Scarlat |
| On-Site Speaker (Planned) |
Francesco Carotti |
| Abstract Scope |
FLiBe (2LiF-BeF2) molten salt is considered as heat transfer fluid for advanced nuclear energy systems, including fluoride salt-cooled high-temperature reactors (FHRs). Electrochemical techniques play a key role in FLiBe technology development as they enable monitoring of FLiBe redox potential and characterization of salt chemical and transport phenomena. Any electrochemical setup requires a reference electrode (RE) that provides an in-situ potential reference. This talk will present and compare the performances of the REs most commonly adopted in FLiBe electrochemical studies: Ni/Ni(II) thermodynamic RE, dynamic RE and Pt quasi-RE. The results in terms of potential stability, thermodynamics and background noise for each electrode type are discussed, providing a metric for RE selection in laboratory and industrial application. In addition, the results of a full material characterization on the Ni/Ni(II) RE are presented, pointing at the suitability of the RE materials for long term operations in FLiBe. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Nuclear Materials, |