| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
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| Presentation Title |
Utilizing multi-modal approach to investigate local structure and speciation of metal solutes in molten salt systems.
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| Author(s) |
Nirmalendu Patra, Alejandro Ramos Ballesteros, Santanu Roy, Ruchi Gakhar, Vyacheslav Bryantsev, Anatoly Frenkel, James Wishart, Simerjeet Gill |
| On-Site Speaker (Planned) |
Nirmalendu Patra |
| Abstract Scope |
Understanding the effect of solvent chemistry and radiation on the speciation of metal ions is crucial for predicting the stability and reactivity of molten salts for successful deployment of molten salt reactors. X-ray radiation induced nanoparticle formation and growth in molten salt environments has been studied, and it is also observed that salt composition can affect the speciation of metal ions such as Ni2+ in various chloride molten salts using in-situ X-ray absorption spectroscopy study. In our present work we utilize a multimodal approach of combining X-ray absorption spectroscopy, optical spectroscopy and ab initio molecular dynamics (AIMD) to investigate the speciation of metal solutes in chloride based molten salts. The metal solutes studied include both transition metals (such as nickel - a common corrosion product) and actinides (such as uranium - present in fission products). The role of polarizing power of cations in molten salts and temperature will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Characterization, High-Temperature Materials |