Lanthanum enhances catalytic activity through several mechanisms:
Electronic Effects: Lanthanum can alter the electronic environment of active sites, improving their ability to interact with reactant molecules. Structural Effects: Lanthanum helps maintain the structural integrity of catalysts at high temperatures, preventing sintering and deactivation. Basicity: Lanthanum oxides have strong basic properties, which can promote certain reactions, such as the dehydrogenation of alkanes.
