How Do Sulfur Compounds Affect Catalytic Activity?
The impact of sulfur compounds on catalytic activity largely depends on the type of catalyst and the nature of the sulfur compound. For instance, in the case of metal catalysts, sulfur can form strong bonds with the metal surface, leading to deactivation. However, in some catalytic processes such as the hydrogenation of unsaturated hydrocarbons, sulfur compounds can improve selectivity by modifying the electronic properties of the catalyst.