Tracer experiments are utilized to answer several fundamental questions in catalysis:
1. Mechanistic Insight: How do reactants convert into products? By tracing the path of specific atoms, researchers can deduce mechanistic steps and intermediates. 2. Kinetic Studies: What are the rate-determining steps? Tracers can help in identifying slow and fast steps within a catalytic cycle. 3. Catalyst Efficiency: How effectively is the catalyst facilitating the reaction? By measuring the distribution and fate of the tracer, one can infer the efficiency and active sites of the catalyst.