Sandwich-Type Zeolite Intergrowths with MFI and the Novel Extra-Large Pore IDM-1 as Ordered End-Members

Stacking faults are two-dimensional planar defects frequently arising in zeolites, modifying their properties and potentially affecting performance catalysis separation applications. In classical zeolite intergrowths, a topologically unique layer may often pile up after some spatial transformation (lateral translation, rotation, and/or reflection) that occur different amounts or directions with about similar probabilities, leading to difficult control disorder. Here, we present new kind of intergrowth requires an additional distinct rather than one. the so-called pentasil layers produces well-known medium pore MFI. Intercalation strict alternation second sandwiched between expands structure produce extra-large IDM-1. disorder modulates structural expansion along stacking direction. The disordered materials have been studied by simulation X-ray diffraction patterns using program DIFFaX Cs-corrected high-resolution electron microscopy. We show does not at random but extended domains can be controlled all way from MFI IDM-1 just varying concentration synthesis mixture.