Pseudomorphic synthesis of mesoporous zeolite Y crystals

Chal, Robin; Cacciaguerra, Thomas; Donk, Sander van; Gérardin, Corine

doi:10.1039/c0cc02073g

Cited by 93 publications

(78 citation statements)

References 15 publications

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“…The equivalent specific surface area amounts to 883 and 837 m 2 g -1 for HY and HY-TA, respectively. These results compare well to those previously reported in the literature [42]. The HY-MIm and HY-MPy materials presents similar surface area (805 m 2 g -1 ) but with different capillary condensation regimes.…”

Section: Mesoporous Y Zeolite By Ionic Liquid Based Surfactant Templasupporting

confidence: 82%

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Mesoporous Y zeolite through ionic liquid based surfactant templating

Sachse

Wuttke

Díaz

et al. 2015

Microporous and Mesoporous Materials

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a b s t r a c t New surfactant molecules based on ionic liquids, such as [C16MIm]Cl and [C16MPy]Cl were employed in the rearrangement of Y zeolite to introduce mesopores of different morphologies. We evidence that the templating efficiency of these ionic liquids is identical as for the classically used ammonium based surfactant (CTAC) in the synthesis of siliceous MCM-41. Yet, their templating behavior differs importantly when used in the surfactant templating approach to produce mesoporous Y zeolite. This finding indicates that the micellization ability of these surfactants within the zeolite confined spaces differs to the one in solution and hence has a major impact on the textural properties of the final zeolite phase. Hierarchical porous zeolite Y with novel textural properties could be disclosed.

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Section: Mesoporous Y Zeolite By Ionic Liquid Based Surfactant Templasupporting

confidence: 82%

“…C n H 2nþ1 (CH 3 ) 3 NBr, n ¼ 8e18). This process has proven to be an efficient strategy for the introduction of ordered mesopores in various zeolites, such as Y [42], MOR [43], BEA [44] and ZSM-5 [45].…”

Section: Introductionmentioning

confidence: 99%

Mesoporous Y zeolite through ionic liquid based surfactant templating

Sachse

Wuttke

Díaz

et al. 2015

Microporous and Mesoporous Materials

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show abstract

“…Although it is recently developed to make uniform size of mesopores by desilication in the presence of cetyltrimethylammonium bromide (CTABr) surfactant [26,32], the mesopores generated via post-demetallation are very uncontrollable and undesirably formed. However, the post-demetallation route Fig.…”

Section: Post-synthetic Demetallation Of Zeolite Crystalsmentioning

confidence: 99%

Hierarchically Nanoporous Zeolites and Their Heterogeneous Catalysis: Current Status and Future Perspectives

Somorjai

2014

Catal Lett

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The research field of hierarchically nanoporous zeolites has been growing at an enormous pace over the past decades. Hierarchically nanoporous zeolites have versatile structural properties such as high surface area and large pore volume that can alleviate diffusional limitations of conventional zeolites with solely microporous framework. In this review, various synthesis strategies to hierarchically nanoporous zeolites and their structural advantages in catalytic reactions will be reviewed. In the first part, many novel synthetic approaches for hierarchically nanoporous zeolites such as post-demetallation, softtemplating, hard-templating, and dual-pore-generating surfactant-directed methods will be introduced. In the second part, catalytic applications of hierarchically nanoporous zeolites on various chemical reactions involving isomerization, cracking, alkylation and oxidation will be discussed. The present comprehensive review will provide future opportunities and perspectives on the research of hierarchically nanoporous zeolites including their applications to catalytic reactions.

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“…Based on this principle, Groen et al prepared MFI zeolites possessing uniform mesoporosity, using submicron zeolite crystals instead of large bulk zeolite crystals [ 49 ]. Later, Chal et al added ammonium surfactants such as cetyltrimethylammonium bromide (CTAB) in the desilication of the ZSM-5 [ 52 ]. The addition of CTAB was very effective in generating mesopores with a uniform diameter.…”

Section: Post-synthetic Chemical Treatment To Generate Mesostructure mentioning

confidence: 97%

Mesostructured Zeolites

Ryoo¹,

Cho²,

Mota³

2016

Green Chemistry and Sustainable Technology

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Mesoporous materials constructed with microporous zeolitic frameworks (i.e., mesoporous zeolites) are of great interest owing to the very short diffusion path lengths across thin zeolite layers and the presence of large external surfaces containing strong Brønsted acid sites. These characteristics of mesoporous zeolites are highly advantageous for a wide range of applications, particularly in heterogeneous catalysis. The mesoporous materials show unprecedentedly high catalytic performances (e.g., high catalytic conversion and catalytic longevity) as zeolites in various petrochemical reactions and fi ne-chemical organic reactions and especially in reactions involving bulky molecules. In this chapter, we describe the various methods currently available for the synthesis of mesoporous zeolites.

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Pseudomorphic synthesis of mesoporous zeolite Y crystals

Cited by 93 publications

References 15 publications

Mesoporous Y zeolite through ionic liquid based surfactant templating

Mesoporous Y zeolite through ionic liquid based surfactant templating

Hierarchically Nanoporous Zeolites and Their Heterogeneous Catalysis: Current Status and Future Perspectives

Mesostructured Zeolites

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