In Situ Recrystallization of Mesoporous Carbon-Silica Composite for the Synthesis of Hierarchically Porous Zeolites.

ABSTRACT: Hierarchically porous ZSM-5 was prepared by utilizing a two-step crystallization procedure with carbon-silica composites as precursors. The hierarchically porous zeolites obtained a regular mesoporous structure with aluminum incorporated into the carbon-silica composite frameworks. The carbon-silica composite zeolites were characterized by XRD, TEM, SEM, and nitrogen adsorption/desorption. As-prepared hierarchical zeolites were used in the 1,3,5-triisopropylbenzene (TIPB) cracking reaction and exhibited significantly high TIPB conversion, while the accessibility factors were also determined.

SUBMITTER: Du J 

PROVIDER: S-EPMC7178382 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature