Schottky defects play a crucial role in catalysis by:
1. Increasing Surface Area: The vacancies create additional surface area, providing more active sites for catalytic reactions. 2. Enhancing Reactivity: The presence of vacancies can alter the electronic structure of the material, making it more reactive. 3. Facilitating Diffusion: The defects enable easier diffusion of reactants and products, especially in solid-state reactions.