Rare Earth Materials Could Improve Hydrogen Production Across Multiple Routes

A review of rare earth element-containing materials finds that cerium, lanthanum, and other REEs can improve redox behavior, oxygen mobility, electrochemical activity, charge separation, hydrogen storage, and membrane performance across several hydrogen-production technologies. Most advances remain at laboratory scale, with wider deployment dependent on cost, resource availability, extraction impacts, long-term stability, recycling, and techno-economic feasibility.