Several techniques are used to apply coatings to catalysts, including:
Impregnation: This method involves soaking the catalyst support in a solution containing the coating material, followed by drying and calcination. Deposition-Precipitation: This technique involves the precipitation of the coating material from a solution directly onto the catalyst support. Sol-Gel Method: In this process, a colloidal solution (sol) is transformed into a gel, which is then dried and calcined to form the coating. Atomic Layer Deposition (ALD): This method involves the sequential deposition of atomic layers of the coating material, allowing for precise control of the coating thickness.
