What are the key features of the Mars-van Krevelen mechanism?
Several key features distinguish the MvK mechanism:
Lattice oxygen participation: The MvK mechanism uniquely involves the transfer of oxygen from the catalystâs lattice to the substrate. Role of oxygen vacancies: Oxygen vacancies play a crucial role, as they need to be replenished to maintain catalytic activity. Surface reactions: The reactions occur on the surface of the catalyst, emphasizing the importance of surface properties. Reversibility: The catalyst undergoes reversible oxidation and reduction cycles.