About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Materials and Chemistry for Molten Salt Systems
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Presentation Title |
Exploring the Effect of Radiation and Temperature on the Local Structure of Metal Ions in Molten Salt Environments using X-ray Absorption Spectroscopy |
Author(s) |
Nirmalendu Patra, Kazuhiro Iwamatsu, Mehmet Topsakal, Alejandro Ramos Ballesteros, Ruchi Gakhar, Michael E. Woods, Simon Pimblott, Jay LaVerne, James F. Wishart, Anatoly I. Frenkel, Simerjeet K. Gill |
On-Site Speaker (Planned) |
Nirmalendu Patra |
Abstract Scope |
Understanding the effect of solvent chemistry and radiation on the speciation and local structure of metals is crucial for predicting the stability and reactivity of molten salts for successful deployment of molten salt reactors. Due to the effects of radiation, such as generation of solvated electrons, metal ions can be reduced to a variety of species, including metal nanoparticles. In present work, we investigate the speciation of Ni2+ ion and radiation-induced Ni metal nanoparticle formation in three molten salt systems (ZnCl2, ZnCl2-KCl, MgCl2-KCl) using synchrotron-based X-ray absorption spectroscopy, optical absorption spectroscopy and electron paramagnetic resonance studies. The evolution of local structure of these metal ions as a function of solvent composition, temperature, and radiation dose will be discussed. This work was supported as part of 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, Copper / Nickel / Cobalt, Other |