| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
In-situ Spectro-electrochemistry of Molten Chloride Salts |
| Author(s) |
Ruchi Gakhar, William C. Phillips, Steven Frank |
| On-Site Speaker (Planned) |
Ruchi Gakhar |
| Abstract Scope |
Known historically as electrochemical media for high temperature processes, molten salts have regained the attention of the community for their use in advanced nuclear and solar thermal power plants. Owing to the structural complexities of fused salt systems, the chemical properties of these mixtures depend on melt composition and temperature in intricate ways, borne out primarily by changes in coordination geometry around the metal ions in the melt. In addition to the formal charge on the metal ion, the polarizing power of the bulk melt cation and the octahedral site preference energy are the primary factors defining the coordination geometry. To understand the metal speciation in molten salt systems, a novel and versatile spectro-electrochemical furnace has been designed at Idaho National Laboratory for in-situ spectroscopic and electrochemical measurements. Variations in coordination chemistry for transition metal chlorides as a function of salt melt composition, temperature and analyte concentration will be discussed. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |