What are the Key Mechanisms in Multi-Step Catalysis?
There are several key mechanisms through which multi-step catalysis can occur:
Adsorption and Desorption: Reactants are adsorbed onto the catalyst's surface, where intermediate species form and eventually desorb as products. Formation of Transition States: Catalysts stabilize high-energy transition states, making it easier for the reaction to proceed through multiple steps. Enzyme Catalysis: Enzymes often operate through multi-step mechanisms involving substrate binding, intermediate formation, and product release. Homogeneous Catalysis: Soluble catalysts in the same phase as the reactants facilitate multi-step reactions via complex formation and breakdown.