An in situ carbonaceous mesoporous template for the synthesis of hierarchical ZSM-5 zeolites by one-pot steam-assisted crystallization.

Blackened catalyst: Zeolites with large external surface area and mesopore volume were synthesized by a one-pot templating strategy, in which the crystallization proceeded concurrently with in situ carbonization templating to produce a mesoporous structure. The hierarchical materials exhibited superior catalytic performance over conventional zeolites in Friedel-Crafts acylation of anisole.