In Situ Raman Analysis of Electrode Processes in High-Temperature Molten Salts: An Undergraduate Chemistry Experiment

High-temperature molten-salt electrochemistry (MSE) is a branch of chemistry that has applications across various sectors, including the chemical, metallurgical, materials, nuclear, and even deep space exploration industries. Consequently, it is significant for chemistry undergraduates to engage in experimental training focused on high-temperature MSE. In this study, we developed an instrument for in situ Raman spectroscopic analysis of electrode processes in molten salts. Utilizing this instrument, we designed a rigorous and feasible experimental scheme, along with a comprehensive evaluation method. The integration of in situ Raman spectroscopy and our experimental protocol enables students to gain profound insights into molten-salt electrode processes while deepening their understanding of the underlying reaction mechanisms. Notably, this pedagogical approach not only cultivates students’ interest in chemistry but also enhances their scientific reasoning skills and exposes them to cutting-edge knowledge.