Used as a precursor in the synthesis of cerium oxide (CeO₂) nanoparticles, which are widely applied in catalytic converters for automotive emission control due to their oxygen storage capacity. Employed in the preparation of catalysts for petroleum refining and chemical processing, where it promotes selective oxidation reactions. Serves as a dopant or additive in solid oxide fuel cells to enhance ionic conductivity and lower operating temperatures. Utilized in the fabrication of anti-reflective and conductive coatings for glass and optical devices through sol-gel processes. Applied in research and development of luminescent materials and phosphors for lighting and display technologies. Also used in tanning processes in the leather industry to improve heat stability and water resistance of hides.