ZSM-5 and ferrierite single crystals with lower Si/Al ratios: Synthesis and single-crystal synchrotron X-ray diffraction studies

Less twinned and high Al-containing ZSM-5 (MFI, Al3.8Si92.2O192, Si/Al = 24.1) and high Al-containing ferrierite (FER, Al2.0Si34.0O72, Si/Al = 16.7) large single crystals were synthesized by hydrothermal methods using mixed organic structure-directing agents and confirmed by single-crystal X-ray diffraction and SEM-EDX techniques. These large zeolite single crystals with an average size of 100 and 280 μm on an edge for ZSM-5 and ferrierite, respectively, were found to exhibit good qualities for potential use in advanced applications.

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► Less twinned ZSM-5 and ferrierite large single crystals with high Al were synthesized.
► ZSM-5 single crystals exhibited good qualities for structure determination.
► Single crystals of ferrierite obtained here are suitable for crystallographic work.