Synthesis of ZSM-5 Films and Monoliths with Bimodal Micro/Mesoscopic Structures

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Abstract

A route to synthesize ZSM-5 crystals with a bimodal micro/mesoscopic pore system has been developed in this study; the successful incorporation of the mesopores within the ZSM-5 structure was performed using tetrapropylammonium hydroxide (TPAOH)-impregnated mesoporous materials containing carbon nanotubes in the pores, which were encapsulated in the ZSM-5 crystals during a solid rearrangement process within the framework. Such mesoporous ZSM-5 zeolites can be readily obtained as powders, thin films, or monoliths.

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