The important role of rubidium hydroxide in the synthesis of hierarchical ZSM-5 zeolite using cetyltrimethylammonium as structure-directing agent

W. Wannapakdee, Lingqian Meng, Arno van Hoof, Aleksei Bolshakov, Chularat Wattanakit, Emiel Hensen (Corresponding author)

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Abstract

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.
Original languageEnglish
Pages (from-to)2493-2497
Number of pages5
JournalEuropean Journal of Inorganic Chemistry
Volume2019
Issue number20
DOIs
Publication statusPublished - 2 Jun 2019

Fingerprint

Rubidium
Zeolites
Physisorption
Carbon Monoxide
Acidity
Surface-Active Agents
Nuclear magnetic resonance spectroscopy
Methanol
Structural properties
Textures
Gels
Transmission electron microscopy
Crystals
hydroxide ion
ZSM-5 zeolite

Keywords

  • Mesoporous materials
  • Rubidium
  • Templated synthesis
  • Zeolites

Cite this

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abstract = "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.",
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T1 - The important role of rubidium hydroxide in the synthesis of hierarchical ZSM-5 zeolite using cetyltrimethylammonium as structure-directing agent

AU - Wannapakdee, W.

AU - Meng, Lingqian

AU - van Hoof, Arno

AU - Bolshakov, Aleksei

AU - Wattanakit, Chularat

AU - Hensen, Emiel

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AB - 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.

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