There are several factors that can contribute to the short lifetimes of catalysts:
Thermal Degradation: High temperatures can cause catalysts to lose their structural integrity. Poisoning: The presence of impurities or reactants that strongly adsorb onto the active sites of the catalyst, rendering them inactive. Sintering: The coalescence of catalyst particles at high temperatures, leading to a decrease in surface area. Coking: The deposition of carbonaceous materials on the catalyst surface, which blocks active sites.
