Colloidal catalysts can be broadly classified into several categories based on their composition and structure:
Metal nanoparticles: These include colloidal gold, silver, platinum, and palladium, which are commonly used in various catalytic processes. Metal oxides: Colloidal oxides like titanium dioxide and zinc oxide are used for photocatalysis and environmental applications. Bimetallic nanoparticles: These consist of two different metals and can have enhanced catalytic properties due to synergistic effects. Core-shell nanoparticles: These have a core of one material and a shell of another, providing unique catalytic properties and stability.
