The Microemulsion is a transparent thermodynamically constant isotropic distribution of two immiscible liquids such as a nonpolar liquid (oil) and a polar liquid (aqueous) sustained by a surfactant. The microemulsion is an encouraging process leading to the synthesis of catalysts at the nanoscale with a narrow size distribution. Changing the size of inverted micelles leads to control over the size of catalytic particles, ranging from 1–100 nm.
Microemulsions are thermodynamically constant, isotropic, optically transparent solutions composed of two intrinsically immiscible solvents in the appearance of one or more surfactants, and have obtained the broad application for catalytic reactions and methods.
Catalytic cracking is an extensive process in the oil industry where petroleum vapor moves through a low-density bed of catalysts, which makes the heavier fractions crack producing lighter more valuable products. In the petrochemicals industry, they are used for creating polyolefins on a very large scale.