|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||REWAS 2022: Energy Technologies and CO2 Management
||Macroscopic Modeling and Phase Field Modeling of Solar Grade Silicon by Molten Salt Electrolysis
||Aditya Moudgal, Mohammad Asadikiya, Douglas Moore, Gabriel Espinosa, Lucien Wallace, Alexander Wadsworth, Alexander Alonzo, Peter Catalino, Andrew Charlebois, Evan Costa, Tyler Melo, Adam Clayton Powell, Yu Zhong, Uday Pal
|On-Site Speaker (Planned)
Conventional production of solar silicon by the Siemens Process is energy intensive, has inherent safety challenges and is expensive due to multiple operations. Therefore, there have been concentrated efforts since the 1970’s to produce silicon electrochemically. Toward this end, a new molten salt electrolyte was engineered at Boston University which improves properties such as SiF4 volatility, low electrolyte bath conductivity and high viscosity, low silica solubility by and order of magnitude or better. This talk builds on this work by modeling an electrochemical cell and solving conservation equations of mass, momentum, charge and heat and diffusion to understand transport in the molten salt bath. The phase field model will model electrodeposition and give insights into interface stability by solving the Cahn-Hilliard equation. The talk will also correlate these models to lab scale experiments.
||Electrometallurgy, Computational Materials Science & Engineering, Modeling and Simulation