Structure–direction towards the new large pore zeolite NUD-3
Fei‐Jian Chen, Zihao Gao, Jian Li, Luis Gómez‐Hortigüela, Cong Lin, Le Xu, Hong‐Bin Du, Carlos Márquez‐Álvarez, Junliang Sun, Miguel Á. Camblor
Abstract
The new zeolite NUD-3 possesses a three-dimensional system of large pore channels that is topologically identical to those of ITQ-21 and PKU-14. However, the three zeolites have distinctly different frameworks: a particular single 4-membered ring inside the denser portion of the zeolite is missing in PKU-14, disordered in ITQ-21 and fully ordered in NUD-3. We document these differences and use molecular simulations to unravel the mechanism by which a particular structure directing agent dication, 1,1'-(1,2-phenylenebis(methylene))bis(3-methylimidazolium), is able to orient this inner ring.
Topics & Concepts
ZeoliteCrystallizationCrystallographyMaterials scienceChemistryCatalysisOrganic chemistryZeolite Catalysis and SynthesisMetal-Organic Frameworks: Synthesis and ApplicationsMesoporous Materials and Catalysis