Several methods exist for preparing composite catalysts:
1. Co-precipitation: This involves precipitating the active materials together from a solution to form a homogeneous mixture. 2. Sol-gel Process: A method where the precursor materials are mixed in a solution to form a gel, which is then dried and calcined to form the composite catalyst. 3. Impregnation: Here, the support material is impregnated with a solution containing the active component, followed by drying and calcination. 4. Mechanical Mixing: Physical mixing of different catalytic materials to form a composite.
