Catalysts can also be classified based on their mechanism of action: - Acid-Base Catalysts: These catalysts function by donating or accepting protons (H+ ions) to facilitate the reaction. Common examples include sulfuric acid and potassium hydroxide. - Surface Catalysts: These catalysts work by providing a surface for the reactants to adhere to, thereby increasing the rate of reaction. Metals like platinum and palladium are typical surface catalysts. - Redox Catalysts: These catalysts facilitate oxidation-reduction reactions. They often involve transition metals that can change oxidation states, such as iron and vanadium oxides.
