Blank Tests Blank tests are conducted in the absence of the catalyst to determine the baseline activity of the reaction. This helps in establishing whether the observed activity is due to the catalyst or if the reaction can proceed without it.
Poisoning Tests In poisoning tests, a known inhibitor is introduced to the reaction to deactivate the catalyst. If the reaction rate significantly drops, it confirms the role of the catalyst in the reaction.
Hot Filtration Tests Hot filtration tests involve filtering the reaction mixture at an elevated temperature to remove the catalyst. The reaction is then monitored to see if it continues or stops. Continued activity after removing the catalyst may indicate homogeneous catalysis or leaching of active sites.
Recycling Tests Recycling tests evaluate the reusability of the catalyst by using it in multiple reaction cycles. A consistent performance across cycles indicates good catalyst stability and robustness.
Isotope Labeling Isotope labeling involves using isotopically labeled reactants to trace the reaction pathway and intermediates. This helps in understanding the mechanism of catalysis and confirming the involvement of the catalyst in specific steps.
