What is the Difference Between Homogeneous and Heterogeneous Catalysis in Terms of Heat Profiles?
In homogeneous catalysis, the catalyst and reactants are in the same phase, typically liquid. The reaction heat profile often shows multiple intermediate species and transition states, reflecting the complex interactions between the catalyst and reactants.
In heterogeneous catalysis, the catalyst is in a different phase, usually solid, while the reactants are in a gas or liquid phase. The heat profile in this case might show surface interactions, adsorption, and desorption steps, as well as the formation of surface-bound intermediates.