A new class of solid Lewis acid catalysts based on interlayer expansion of layered silicates of the RUB-36 type with heteroatoms

Baerdemaeker, Trees De; Gies, Hermann; Yilmaz, Bilge; Müller, Ulrich; Feyen, Mathias; Xiao, Feng‐Shou; Zhang, Weiping; Yokoi, Toshiyuki; Bao, Xinhe; Vos, Dirk De

doi:10.1039/c4ta01384k

Cited by 26 publications

(27 citation statements)

References 44 publications

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“…Derivatives of 2D layers with the CDO zeolite topology are currently being explored. As shown in Table 3, interlayer-expansion by the silyation [115,116,118,119,125] and pillaring [33] of PLS-1 has led to COD zeolites with expanded and pillared structures.…”

Section: D Layers With 8-mr Zeolite (Cas Cdo Mtf Nsi Rth Rwr) Tmentioning

confidence: 99%

“…Materials 2020, 13, 1822 11 of 52 [115,116,118,119,125] and pillaring [33] of PLS-1 has led to COD zeolites with expanded and pillared structures. HPM (nanostructured hybrid biohybrid and porous materials)-2 is a new layered organosilicate containing 2D layers with an MTF topology, yielding zeolite MTF by calcination [100].…”

Section: D Layers With 8-mr Zeolite (Cas Cdo Mtf Nsi Rth Rwr) Tmentioning

confidence: 99%

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Two-Dimensional Zeolite Materials: Structural and Acidity Properties

Schulman

Liu

2020

Materials

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Zeolites are generally defined as three-dimensional (3D) crystalline microporous aluminosilicates in which silicon (Si4+) and aluminum (Al3+) are coordinated tetrahedrally with oxygen to form large negative lattices and consequent Brønsted acidity. Two-dimensional (2D) zeolite nanosheets with single-unit-cell or near single-unit-cell thickness (~2–3 nm) represent an emerging type of zeolite material. The extremely thin slices of crystals in 2D zeolites produce high external surface areas (up to 50% of total surface area compared to ~2% in micron-sized 3D zeolite) and expose most of their active sites on external surfaces, enabling beneficial effects for the adsorption and reaction performance for processing bulky molecules. This review summarizes the structural properties of 2D layered precursors and 2D zeolite derivatives, as well as the acidity properties of 2D zeolite derivative structures, especially in connection to their 3D conventional zeolite analogues’ structural and compositional properties. The timeline of the synthesis and recognition of 2D zeolites, as well as the structure and composition properties of each 2D zeolite, are discussed initially. The qualitative and quantitative measurements on the acid site type, strength, and accessibility of 2D zeolites are then presented. Future research and development directions to advance understanding of 2D zeolite materials are also discussed.

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Section: D Layers With 8-mr Zeolite (Cas Cdo Mtf Nsi Rth Rwr) Tmentioning

confidence: 99%

Section: D Layers With 8-mr Zeolite (Cas Cdo Mtf Nsi Rth Rwr) Tmentioning

confidence: 99%

Two-Dimensional Zeolite Materials: Structural and Acidity Properties

Schulman

Liu

2020

Materials

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“…Recently, it has also been shown to be possible to introduce catalytic activity in the pillars. 32 , 33 Excellent reviews of the above strategies are available. 8 , 9 …”

Section: Introductionmentioning

confidence: 99%

Synthesis of the RTH-type layer: the first small-pore, two dimensional layered zeolite precursor

2015

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“…In explorative studies, it could be shown that other, functionalized linker groups can be inserted and that by increasing the linker dimensions, the pore size could be expanded [ 48 -50 ]. The latest Rietveld analysis of an IEZ material showed that using Fe 3+ in aqueous solution as linker species, a microporous, metal-expanded, thermally stable silicate framework could be formed exposing the reactive metal linker site to the pore space [ 51 ]. The direction of an active component on a specifi c framework site is demonstrated with the concept of interlayer expanded zeolites and proven based on various structure analyses.…”

Section: Data Mining: Generating a Starting Structure Model On The Bamentioning

confidence: 98%

Structure Analysis in Zeolite Research: From Framework Topologies to Functional Properties

Gies

Marler

2016

Green Chemistry and Sustainable Technology

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The solution and the refi nement of crystal structures of microporous materials are of prime interest for the synthesis and application community in porous solid research. The structure of a material reveals not only the geometry of the bonding network of the rigid framework but also the location of the nonframework constituents responsible for the porosity of the material. Analyzing the structure, therefore, unveils the synthesis protocol including nucleation and growth. The properties related to the porous net correspond to the local structure, i.e., the composition and the geometry of local confi gurations. It thus inspires ideas about possible properties and modifi cations to improve functionality.The chapter is intended to highlight the contribution of crystallographic analysis of microporous materials and in particular porous silicates to the success of this class of materials. It does not survey the continuous growth of materials in the fi eld but show how the insight gained from crystallographic studies acted as catalyst in the further development of the fi eld.

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A new class of solid Lewis acid catalysts based on interlayer expansion of layered silicates of the RUB-36 type with heteroatoms

Abstract: Interlayer expansion of the layered zeolite precursor RUB-36 in presence of an Fe source simultaneously achieved the expansion and the introduction of catalytic activity.

Cited by 26 publications

References 44 publications

Two-Dimensional Zeolite Materials: Structural and Acidity Properties

Two-Dimensional Zeolite Materials: Structural and Acidity Properties

Synthesis of the RTH-type layer: the first small-pore, two dimensional layered zeolite precursor

Structure Analysis in Zeolite Research: From Framework Topologies to Functional Properties

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