Some common sources of variability in catalytic experiments include:
Temperature: Small changes in temperature can significantly affect reaction rates and selectivity. Pressure: Particularly in gas-phase reactions, pressure variations can alter the extent of reactant adsorption on the catalyst surface. Reactant Concentration: Variability in the concentration of reactants can change the reaction order and the rate-limiting step. Impurities: The presence of impurities can poison the catalyst and alter its activity and selectivity. Catalyst Preparation: Differences in the synthesis and pre-treatment of catalysts can result in variability in their surface properties and active sites.
