Catalytic and molecular separation properties of Zeogrids and Zeotiles

Martens, Johan A.; Thybaut, Joris W.; Denayer, Joeri; Sree, Sreeprasanth Pulinthanathu; Aerts, Alexander; Reyniers, Marie-Françoise; Speybroeck, Véronique Van; Waroquier, Michel; Buekenhoudt, Anita; Vankelecom, Ivo F.J.; Buijs, Wim; Persoons, Jeroen; Baron, Gino V.; Bals, Sara; Tendeloo, Gustaaf Van; Marin, Guy; Jacobs, Pierre; Kirschhock, Christine

doi:10.1016/j.cattod.2011.01.036

Cited by 15 publications

(14 citation statements)

References 70 publications

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“…Hierarchical porous solids consisting of mesoporous materials with microporous walls can be obtained by direct synthesis or by adding mesopores to an existing mesoporous material [Chal et al, 2011, Hua et al, 2011,Reichinger et al, 2012,Serrano et al, 2013, Ivanova and Knyazeva, 2013,Moller and Bein, 2013. The benefits of connecting pore networks with different porosity scales are well-known in the fields of catalysis and phase separation [Holm et al, 2011,Hua et al, 2011,Martens et al, 2011, Sachse et al, 2011, Sachse et al, 2012.…”

Section: Introductionmentioning

confidence: 99%

Adsorption-based characterization of hierarchical metal–organic frameworks

2013

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Nitrogen adsorption at 77 K on Metal OrganicFramework is investigated by means of molecular simulations. We consider both regular Cu-BTC crystal and a MOFbased hierarchical porous solid consisting of a mesopore carved out of a Cu-BTC crystal. The t-plot method is applied to these solids by using a non-porous Cu-BTC surface as the reference sample. The values of the mesoporous and external surface areas are determined from the t-plot, and the validity of the method for this type of hierarchical solid is discussed.

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Section: Introductionmentioning

confidence: 99%

Adsorption-based characterization of hierarchical metal–organic frameworks

2013

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“…Heating is needed for growing of larger crystals (Kirschhock et al, 1999b;Ravishankar et al, 1999;Kremer et al, 2005b). Idealized representations of protozeolitic particles (Martens et al, 2011) (Figure 1) explaining the NMR spectroscopic fingerprints and the bathochromic shifting of spectroscopic fingerprints, such as the Pentasil IR absorption band at 540-550 cm −1 according to the evolution from an isolated five-ring to full embedment in MFI framework (Lesthaeghe et al, 2008). The comparison of molecular simulations and experimental data of IR bands in nanoparticles extracted from silicalite-1 clear solutions supported their structured nature.…”

Section: Zeogrids and Zeotilesmentioning

confidence: 99%

“…Several hierarchical structures have been obtained from nanoslab suspensions by using surfactant templates for ordering their assembly (Kirschhock et al, 2005;Martens et al, 2011). An overview of different types of hierarchical silicate structures realized using this approach is provided in Table 1.…”

Section: Zeogrids and Zeotilesmentioning

confidence: 99%

Hierarchical COK-X Materials for Applications in Catalysis and Adsorptive Separation and Controlled Release

et al. 2022

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Over the years, COK has developed a family of silicate materials and metal–organic framework hybrids with hierarchical porosity and functionality, coined zeogrids, zeotiles, and COK-x (stemming from the Flemish name of the laboratory “Centrum voor Oppervlaktechemie en Katalyse”). Several of these materials have unique features relevant to heterogeneous catalysis, molecular separation, and controlled release and found applications in the field of green chemistry, environmental protection, and pharmaceutical formulation. Discovery of a new material typically occurs by serendipity, but the research was always guided by hypothesis. This review provides insight in the process of tuning initial research hypotheses to match material properties to specific applications. This review describes the synthesis, structure, properties, and applications of 12 different materials. Some have simple synthesis protocols, facilitating upscaling and reproduction and rendering them attractive also in this respect.

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“…Martens et al describe "zeogrids" and "zeotiles," which are characterized by hierarchical pore systems and can be formed by self-assembly of MFI-building blocks in the presence of supramolecular SDAs (173). The materials are claimed to behave different from both normal zeolites and ordered mesoporous materials.…”

Section: Fcc Processesmentioning

confidence: 99%