Metal-Mediated Chlorine Transfer for Molten Salt-Driven Thermodynamic Change on Silicon Production.

ABSTRACT: The development of silicon (Si) material poses a great challenge with profound technological advancements for semiconductors, photo/photoelectric systems, solar cells, and secondary batteries. Typically, Si production involves the thermochemical reduction of silicon oxides, where chloride salt additives help properly revamp the reaction mechanism. Herein, we unravel the chemical principles of molten AlCl₃ salt in metallothermic reduction. Above its melting temperature (T_m ≈ 192 °C), three AlCl₃ molecules coordinate with each metal (M) atom (e.g., conventional Al and Mg, or even thermodynamically unfeasible Zn) to form metal-AlCl₃ complexes, M(AlCl₃)₃. In the molten AlCl₃ salt media, all complexes directly lead to

SUBMITTER: Je M 

PROVIDER: S-EPMC11775547 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature