There are several strategies to enhance the poison resistance of catalysts:
Material selection: Choosing materials that inherently resist poisoning, such as noble metals, can be effective. For instance, platinum is known for its resistance to sulfur poisoning. Structural modification: Modifying the structure of catalysts to prevent poisons from accessing active sites. This can include designing catalyst supports that block or repel specific poisons. Surface treatment: Coating catalysts with protective layers that prevent poisons from binding to active sites while allowing reactants to reach them. Regeneration techniques: Developing methods to remove or deactivate poisons from the catalyst surface, restoring their activity.
