How Do Oxygen Vacancies Affect Catalytic Activity?
Oxygen vacancies can act as active sites for various catalytic processes. These vacancies facilitate the adsorption and activation of reactant molecules, which can lower the activation energy of the reaction. For example, in the context of photocatalysis, oxygen vacancies can trap photogenerated electrons, thereby reducing the rate of electron-hole recombination and enhancing the photocatalytic efficiency.
