What is the effect of specific surface area of catalyst on the performance of catalyst? Describe the advantages and disadvantages of molecular sieves with large specific surface area.

The catalyst has a large specific surface area, the contact area with the reactant molecules is large, in principle, the catalyst activity is high, and the molecules passing through the molecular sieve with a large specific surface area should be smaller. Mesoporous materials such as MCM-41 specific surface area 1000 square meters per gram

ZSM-5 about 300-500 square meters per gram