Used as a catalyst in organic synthesis, particularly in coupling reactions and polymerization processes due to its strong Lewis acidity and thermal stability. Employed in electrochemical applications, including ionic liquids for batteries and fuel cells, where it enhances ionic conductivity and electrochemical performance. Also utilized in luminescent materials and sensors, where cerium ions contribute to light-emitting properties under specific excitation. Its non-coordinating anion supports high solubility in polar solvents, making it suitable for homogeneous reaction systems.