Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 57, Issue 47, Pages 15330-15353Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201711422
Keywords
crystallization; interzeolite transformation; OSDAs; zeolites
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Funding
- Spanish Government (MINECO through Severo Ochoa) [SEV-2016-0683]
- Spanish Government [MAT2015-71261-R]
- European Union [ERC-AdG-2014-671093]
- Fundacion Ramon Areces
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Since the early reports by Barrer in the 1940s on converting natural minerals into synthetic zeolites, the use of precrystallized zeolites as crucial inorganic directing agents to synthesize other crystalline zeolites with improved physicochemical properties has become a very important research field, allowing the design, particularly in recent years, of new industrial catalysts. This Review highlights how the presence of some crystalline fragments in the synthesis media, such as small secondary building units (SBUs) or layered substructures, not only favors the crystallization of other zeolites with similar SBUs or layers, but also permits control over important parameters affecting their catalytic activity (chemical composition, crystal size, or porosity, etc.). Recent advances in the preparation of 3D and 2D zeolites through seeding and zeolite-to-zeolite transformation processes will be discussed extensively in this Review, including their preparation in the presence or absence of organic structure-directing agents (OSDAs). The aim is to introduce general guidelines for more efficient approaches for target zeolites.
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