Reverse Micelles in Carbon Dioxide with Ionic‐Liquid Domains

Abstract

The fluorinated surfactant N-ethyl perfluorooctylsulfonamide can form reverse micelles with an ionic liquid as the inner component in supercritical CO2. These reverse micelles can solubilize salts and gold nanoparticles can be formed with HAuCl4 (see TEM image). The micellar systems may combine some of the advantages of supercritical CO2 and ionic liquids as solvents with benefits for potential applications.