2D materials enhance catalytic reactions through several mechanisms: - High Surface Area: Provides more active sites for reactants to interact with. - Electronic Properties: Can be engineered to optimize the interaction with specific molecules, thereby lowering activation energies and enhancing reaction rates. - Defects and Edges: Defects, vacancies, and edges in 2D materials can serve as highly active sites for catalysis. - Heterostructures: Combining different 2D materials to form heterostructures can lead to synergistic effects that enhance catalytic performance.