Crystallographic Structure Determination of MFI-Zeolite Nanosheets
نویسندگان
چکیده
Ultrathin MFI-zeolite nanosheets can be packed on porous supports to create molecular sieve membranes. The nanosheets on porous support reduce morphological damage seen in regular MFIzeolite crystals [1]. MFI-zeolite belongs to pentasil family of zeolites where the periodic building unit (PerBU) is composed of 12 interconnected SiO4 tetrahedral (T12) units of 41m2 (D2d) symmetry [2]. Rotation of T12-units about c-axis, along with translation by 0.5 unit cell in [001] direction forms righthanded or left-handed pentasil chains consisting of five membered rings. Alternating leftand righthanded chains, when connected along [100] direction through inversion symmetry, form MFI-zeolite structure.
منابع مشابه
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