About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
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Presentation Title |
N-15: Revealing Local Ionic Metal Structures in Molten Salt Environments Applying X-ray Absorption Spectroscopy |
Author(s) |
Luis E. Betancourt, Yang Liu, Mehmet Topsakal, Ruchi Gakhar, Michael Woods, Phillip Halstenberg, Santanu Roy, James F. Wishart, Vyacheslav S. Bryantsev, Anatoly I. Frenkel, Simerjeet K. Gill |
On-Site Speaker (Planned) |
Luis E. Betancourt |
Abstract Scope |
Molten Salt Reactors (MSR) are leading candidates among Generation IV advanced nuclear power reactor designs considered for development in US. Reactivity of molten salts for the successful deployment of MSR system requires fundamental understanding of solvent chemistry, radiation induced effects as well as local structure of metals to predict their stability and reactivity. In present work, we use in-situ X-ray absorption spectroscopy (XAS) to probe the speciation of metal ions e.g transition metals (Ni,Co) as well as lanthanides (Sm,Pr) in various molten salt systems (ZnCl2-KCl, ZnCl2, LiCl-KCl) to understand the role of solvent composition as well as temperature on coordination environment of metal ion in various solvent mixtures. Evolution of local structure of various metal ions as function of solvent composition and temperature will be discussed. Work is supported by the Molten Salts in Extreme Environments, Energy Frontier Research Center, funded by the U.S. Department of Energy Office of Science. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Nuclear Materials, Nanotechnology |