There are various methods to prepare multimetallic catalysts, including:
1. Co-precipitation: This involves the simultaneous precipitation of metal precursors from a solution. 2. Impregnation: In this method, a support material is impregnated with a solution containing the desired metals. 3. Sol-gel: This technique involves the formation of a gel from a colloidal solution that contains the metal precursors. 4. Physical Vapor Deposition (PVD): Metals are vaporized and then deposited onto a substrate. 5. Chemical Vapor Deposition (CVD): Similar to PVD but involves chemical reactions to deposit the metals.
