Activity Modulation: The presence of certain elements can either enhance or diminish the catalytic activity. For example, adding
platinum to a catalyst can significantly increase hydrogenation activity.
Selectivity Changes: Elements can alter the selectivity of a catalyst, steering the reaction towards different products. For instance, adding
palladium might favor the formation of one product over another in a complex organic synthesis.
Stability and Longevity: Some elements may improve the stability and lifespan of a catalyst, while others might lead to rapid degradation. For example, the incorporation of
ruthenium can enhance the thermal stability of certain catalysts.
Resistance to Poisoning: The inclusion of specific elements can make catalysts more resistant to poisoning by contaminants. For example,
gold can provide resistance against sulfur poisoning in certain catalytic processes.
