Used as a high-performance catalyst in automotive exhaust systems to promote oxidation of harmful emissions. Enhances efficiency in fuel cells due to its excellent oxygen ion conductivity at high temperatures. Applied in solid oxide fuel cells (SOFCs) as an electrolyte material for improved energy conversion. Serves as a coating material in thermal barrier coatings for turbine engines, providing heat resistance and oxidation protection. Utilized in sensors for detecting oxygen and other gases owing to its redox properties. Also employed in advanced ceramics and nanocomposites to improve mechanical strength and thermal stability.