ECS Advances is pleased to highlight a recent article that makes an important contribution to the understanding of high-temperature electrochemical processes: “Evaluating Platinum, Gold, Glassy Carbon, and Graphite Anodes for Chlorine Evolution in Molten Calcium Chloride Salt.” Authored by Cameron Vann, Shelssie Klvacek, Carlos Mejia, and Devin Rappleye, this work provides timely and practical insights into materials selection for chlorine evolution under extreme conditions.
The chlorine evolution reaction (CER) in molten calcium chloride (CaCl₂) carries several critical technologies, including chlorination, metal refining, rare earth processing, and the treatment and purification of used nuclear fuel. Despite its importance, long-term anode stability and performance in molten salt environments remain persistent challenges. This study directly addresses those challenges through a systematic comparison of four commonly considered anode materials: platinum, gold, glassy carbon, and graphite. (more…)