Binderless zeolite coatings on macroporous α-SiC foams

Losch, Pit; Boltz, Marilyne; Soukup, Karel; Song, In‐Hyuck; Yun, Hiu-Suk; Louis, Benoît

doi:10.1016/j.micromeso.2014.01.008

Cited by 25 publications

(16 citation statements)

References 68 publications

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“…Since zeolites are metastable materials, it is possible to shift from one structure to another one [28], or to crystallize in various morphologies by a simple change in the synthesis duration. This phenomenon was already observed for SiC substrate self-reconstruction into zeolites [29,30].…”

Section: Resultssupporting

confidence: 66%

Insights to Achieve a Better Control of Silicon-Aluminum Ratio and ZSM-5 Zeolite Crystal Morphology through the Assistance of Biomass

et al. 2016

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Abstract:The present study attempts to provide insights for both the chemical composition (Si/Al) and the crystal morphology of ZSM-5 zeolites while using biomass template compounds in the synthesis. The solution containing biomass-derivative compounds was obtained after treating biomass in a sodium hydroxide aqueous solution under reflux. The latter alkaline solution was used as a solvent for zeolite nuclei ingredients to form the gel phase under hydrothermal conditions (170˝C during 24, 48 or 72 h). This approach allowed for preparing MFI zeolites having a broad range of Si/Al ratio, i.e., from 25 to 150. Likewise, MFI crystals with different morphologies could be obtained, being different from the pristine zeolite formed in the absence of biomass.

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Section: Resultssupporting

confidence: 66%

Insights to Achieve a Better Control of Silicon-Aluminum Ratio and ZSM-5 Zeolite Crystal Morphology through the Assistance of Biomass

et al. 2016

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“…Versatile templating and non-templating methods have been described to prepare hierarchical zeolites in the form of nanocrystals, composites, and mesoporous crystals [14][15][16][17][18][19][20][21]. Top-down approaches to introduce intracrystalline mesoporosity in zeolites are cheap and the most commonly used.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous ZSM-5 Zeolites in Acid Catalysis: Top-Down vs. Bottom-Up Approach

et al. 2017

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Abstract:A top-down desilication of Al-rich ZSM-5 zeolites and a bottom-up mesopores creating method were evaluated in this study. Three liquid-solid and one gas-solid heterogeneously-catalysed reactions were chosen to establish relationships between zeolites textural properties and their catalytic behavior in acid-catalysed model reactions that are influenced by shape selectivity: Diels-Alder cyclization between isoprene and methylacrylate, Methanol-to-Olefins (MTO) reaction, chlorination of iodobenzene with trichloroisocyanuric acid (TCCA), and Friedel-Crafts acylation of anisole by carboxylic acids with differing sizes. It is found amongst others that no optimal mesoporosity for all the different reactions can be easily obtained, but depending on the chosen application, a specific treatment has to be set to achieve high activity/selectivity and stability.

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“…Silicon carbide is the most promising raw materials for high temperature and excellent performance structural material attributable to its extreme hardness, excellent strength, low bulk density, high thermal conductivity, good thermal shock resistance and excellent resistance to oxidation [9][10][11]. In addition, low weight, low wear, high corrosion resistance and chemical inertness make silicon carbide novel material for biophysics and biomedical applications [7].…”

Section: Introductionmentioning

confidence: 99%