Several types of catalysts involve oxygen in their mechanism:
1. Heterogeneous Catalysts: These include metal oxides and supported metal catalysts. Metal oxides like titanium dioxide and cerium oxide are commonly used in oxidation reactions. 2. Homogeneous Catalysts: These catalysts operate in the same phase as the reactants. Examples include transition metal complexes that activate oxygen for organic transformations. 3. Enzymatic Catalysts: Enzymes such as oxidases and oxygenases use molecular oxygen to catalyze biochemical reactions.
