Used as an ionic liquid in electrochemical applications, particularly in batteries and supercapacitors, due to its high conductivity and stability. It serves as an electrolyte in dye-sensitized solar cells, enhancing efficiency. Also employed in catalysis for organic synthesis, offering a green solvent alternative. Utilized in gas separation processes, where it selectively absorbs specific gases like CO2. Applied in lubrication for advanced machinery, reducing friction and wear.