Several techniques are widely used for material deposition in catalysis:
Impregnation: In this method, the support material is soaked in a solution containing the catalytic precursor. After soaking, the material is dried and calcined to obtain the final catalyst. Chemical Vapor Deposition (CVD): This technique involves the deposition of a thin film of catalytic material from the gas phase onto the substrate. CVD is particularly useful for creating uniform coatings. Electrodeposition: This electrochemical process deposits material from a solution onto an electrode. It is commonly used for creating metal catalysts. Atomic Layer Deposition (ALD): A highly controlled process that deposits layers of material one atomic layer at a time. ALD is known for its precision and uniformity. Sol-Gel Process: Involves the transition of a system from a liquid "sol" into a solid "gel" phase. This method is useful for creating porous catalytic materials.
