Search Results - "Dib, Eddy"
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One-pot synthesis of silanol-free nanosized MFI zeolite
Published in Nature materials (01-10-2017)“…The synthesis of nanostructured zeolites enables modification of catalytically relevant properties such as effective surface area and diffusion path length…”
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2
Evaluation of Zeolite Composites by IR and NMR Spectroscopy
Published in Molecules (Basel, Switzerland) (19-09-2024)“…In this study, we assessed the quantity, strength, and acidity of zeolite composites comprising Silicalite-1 grown on ZSM-5 crystals using a combination of…”
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3
Interplay between alkali-metal cations and silanol sites in nanosized CHA zeolite and implications for CO2 adsorption
Published in Communications chemistry (29-06-2023)“…Silanols are key players in the application performance of zeolites, yet, their localization and hydrogen bonding strength need more studies. The effects of…”
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Intermolecular interactions in AST zeolites through 14N NMR and DFT calculations
Published in Acta crystallographica. Section C, Crystal structure communications (01-03-2017)“…The structure of the silica AST zeolites (octadecasil) synthesized in fluoride medium using tetramethylammonium (TMA) as the organic structure‐directing agent…”
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5
Flexibility in zeolites: origin, limits, and evaluation
Published in Chemical science (Cambridge) (15-11-2023)“…Numerous pieces of evidence in the literature suggest that zeolitic materials exhibit significant intrinsic flexibility as a consequence of the spring-like…”
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6
Control the position of framework defects in zeolites by changing the symmetry of organic structure directing agents
Published in Microporous and mesoporous materials (01-02-2021)“…Double quantum-single quantum (DQ/SQ) 1H NMR spectroscopy has been used to localize the siloxy/silanol defects in two pure silica MFI zeolite samples…”
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Tuning the atomic ordering of AFI framework with templates charge
Published in Microporous and mesoporous materials (01-01-2025)“…In this work, AlPO4-5 (AFI) zeotype materials were synthesized using the microwave approach in the presence of two organic templates i.e. tripropylamine (R)…”
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Role of Al Distribution in CO2 Adsorption Capacity in RHO Zeolites
Published in Journal of physical chemistry. C (12-01-2023)“…Tailoring the CO2 adsorption performance of high-aluminum-containing zeolites is typically considered from the perspective of controlling the type and location…”
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ZSM‑5 Zeolite: Complete Al Bond Connectivity and Implications on Structure Formation from Solid-State NMR and Quantum Chemistry Calculations
Published in The journal of physical chemistry letters (04-01-2018)“…Al site distribution in the structurally complex and industrially important ZSM-5 zeolite is determined by studying the spectroscopic response of Al(OSi)4…”
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10
Chemical Shift Anisotropy: A Promising Parameter To Distinguish the 29Si NMR Peaks in Zeolites
Published in Journal of physical chemistry. C (08-06-2023)“…Using a combination of (i) symmetry-based recoupling in 29Si NMR, (ii) spin dynamics-based simulations, and (iii) DFT-based theoretical calculations, we show…”
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Chemical Shift Anisotropy: A Promising Parameter To Distinguish the 29 Si NMR Peaks in Zeolites
Published in Journal of physical chemistry. C (08-06-2023)“…Using a combination of (i) symmetry-based recoupling in 29 Si NMR, (ii) spin dynamics-based simulations and (iii) DFT-based theoretical calculations, we show…”
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12
Role of Al Distribution in CO 2 Adsorption Capacity in RHO Zeolites
Published in Journal of physical chemistry. C (12-01-2023)Get full text
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Silicalite-1 formation in acidic medium: Synthesis conditions and physicochemical properties
Published in Microporous and mesoporous materials (01-01-2022)“…Zeolites are the catalytic materials that are widly applied in the processing of conventional and renewable fuels and chemicals. The present study provides a…”
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Insight on MWW siliceous zeolites: From 2D precursors toward 3D structure
Published in Microporous and mesoporous materials (15-02-2024)“…ITQ-1 layered zeolites, with MWW framework, were prepared using different synthesis and calcination procedures and fully characterized by means of X-ray…”
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Highly hydrophobic zeolite ZSM-8 with perfect framework structure obtained in a strongly acidic medium
Published in Microporous and mesoporous materials (01-01-2024)“…The synthesis of zeolites in a strongly acidic medium is a new and nearly unexplored chemistry field. In addition to the previously reported silicalite-1 and…”
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16
Superacidity and spectral signatures of hydroxyl groups in zeolites
Published in Microporous and mesoporous materials (01-09-2022)“…The hydroxyls, Brønsted acid sites (BAS) and silanols, provide key contributions in the global acidity of zeolites and have significant impact on their…”
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Structure-Directing Agent Governs the Location of Silanol Defects in Zeolites
Published in Chemistry of materials (24-11-2015)Get full text
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The role of mixed alkali metal cations on the formation of nanosized CHA zeolite from colloidal precursor suspension
Published in Journal of colloid and interface science (15-12-2021)“…[Display omitted] A clear understanding of the crystal formation pathways of zeolites remains one of the most challenging issues to date. Here we investigate…”
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Impact of Mineralizing Agents on Aluminum Distribution and Acidity of ZSM‐5 Zeolites
Published in Angewandte Chemie International Edition (06-02-2023)“…Intensive research on improving the catalytic properties of zeolites is focused on modulating their acidity and the distribution of associated Al sites…”
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DFT‑D Study of 14N Nuclear Quadrupolar Interactions in Tetra‑n‑alkyl Ammonium Halide Crystals
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (15-05-2014)“…The density functional theory-based method with periodic boundary conditions and addition of a pair-wised empirical correction for the London dispersion energy…”
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