The important role of rubidium hydroxide in the synthesis of hierarchical ZSM-5 zeolite using cetyltrimethylammonium as structure-directing agent
| Autor: | Emiel J. M. Hensen, Arno J. F. van Hoof, Chularat Wattanakit, Wannaruedee Wannapakdee, Lingqian Meng, Alexsei Bolshakov |
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| Přispěvatelé: | Inorganic Materials & Catalysis |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
010405 organic chemistry
chemistry.chemical_element 010402 general chemistry Rubidium 01 natural sciences Mesoporous materials 0104 chemical sciences Rubidium hydroxide Catalysis Inorganic Chemistry chemistry.chemical_compound Physisorption chemistry Chemical engineering Templated synthesis Zeolites Methanol Zeolite Bifunctional Mesoporous material |
| Zdroj: | European Journal of Inorganic Chemistry, 2019(20), 2493-2497. Wiley-VCH Verlag |
| ISSN: | 1434-1948 |
| DOI: | 10.1002/ejic.201900324 |
| Popis: | Hierarchical ZSM‐5 zeolite with uniform mesopores was synthesized with a simple cetyltrimethylammonium (CTA+) template, which acted as a bifunctional surfactant in a RbOH‐based alkaline synthesis gel. Rb+ plays a key role in obtaining uniform mesopores within ZSM‐5 crystals. The structural, textural properties and the acidity were characterized by XRD, Ar physisorption, TEM, as well as CO IR and 27Al MAS NMR spectroscopy. These data point to partial retention of the initial mesoscale ordered texture of the precursor in the final zeolite. These textural properties result in a strongly improved catalytic performance in the methanol conversion reaction compared to bulk zeolite. |
| Databáze: | OpenAIRE |
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