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MFI Zeolite with Small and Uniform Intracrystal Mesopores


  • The support of this research through NSF grant CHE-0211029 is gratefully acknowledged.


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The nucleation of a ZSM-5 zeolite in the presence of silylated polyethylenimine polymers affords composite crystals that contain phase-segregated polymer. Calcination of the crystals results in zeolites with uniform intracrystal mesopores smaller than 10 nm, which are ideally suited for size-selective catalytic conversions of large molecules.

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