Journal of Materials Research and Technology, 2020 In this work, novel mesoporous sodium aluminum silicate hydrate/analcime and zeolite Y/faujasite nanocomposites were fabricated utilizing the hydrothermal method using glutamic acid and L-arginine as organic structure-directing agents.
Ehab A. Abdelrahman +6 more
doaj +1 more source
SYNTHESIS OF FAUJASITE ZEOLITES WITH CROWN-ETHER TEMPLATES [PDF]
, 2011 [[abstract]]The function of crown ethers in the synthesis of faujasite zeolites has been studied. Hexagonal faujasite (EMT) was prepared from 18-crown-6 ether and not from 15-crown-5 ether as the organic template under hydrothermal conditions, whereas ...
WU, CN;CHAO, KJ
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Cation-Induced Disruption of the Local Structure of Water in Faujasite [PDF]
, 2023 The changes in the structure of water confined in faujasite were resolved by a series of ab initio molecular dynamic simulations of explicit water molecules in faujasite with varying Si/Al ratio and counterions present.
Richard C. Shiery (10104507) +1 more
core +1 more source
Water Interaction in Faujasite Probed by in Situ X‑ray Powder Diffraction [PDF]
, 2017 Using in situ X-ray diffraction and the Rietveld method combined with the maximum entropy method, we investigated the interaction of water with sodium faujasite and determined the sodium and water sorption sites as a function of water content.
Carlos A. C. Perez (3708538) +3 more
core +3 more sources
Potential Zeolites Related to Faujasite: Structures and Energetics [PDF]
, 2021 We describe five new zeolitic framework types, fav, faw, fax, fay, and sod-t, that are structurally related to faujasite. They are derived from isomorphic expansions of the tetrahedral nets associated with selected Frank-Kasper phases.
Treacy, Michael +3 more
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Structure of natural and NH4 -exchanged Sasbach faujasite: a single-crystal study [PDF]
, 2018 The interest for the environmental, industrial and technological applications of Si-rich zeolites is very high. Among the large-pore zeolites, faujasite is one of the most exploited.
Fantini, Riccardo +20 more
core +1 more source
Ab initio molecular dynamics simulations of lanthanide coordination structures in water and in faujasite [PDF]
, 2023 Atomic and molecular resolution can provide unique insights into the ambiguous mechanisms by which lanthanum increases the hydrothermal stability of faujasite in cracking catalysts, as well as in cation exchange in faujasite.
Shiery, Richard
core
Nature of Enhanced Brønsted Acidity Induced by Extraframework Aluminum in an Ultrastabilized Faujasite Zeolite: An in Situ NMR Study [PDF]
, 2021 The enhancing effect of extraframework Al (EFAl) species on the acidity of bridging hydroxyl groups in a steam-calcined faujasite zeolite (ultrastabilized Y, USY) was investigated by in situ monitoring the H/D exchange reaction between benzene and ...
Almutairi, Sami M.T. +4 more
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A Study of Dealuminated Faujasites
Journal of Catalysis, 1994 Abstract We have examined a series of steamed and chemically dealuminated faujasites, with lattice parameters varying from 2.4488 to 2.4242 nm, using a range of techniques in order to obtain a better understanding of the acid sites in these materials.
A.I. Biaglow +3 more
openaire +1 more source
Relationship between acidity and catalytic reactivity of Faujasite Zeolite: a periodic DFT study [PDF]
, 2016 The fundamental aspects of Brønsted acidity and catalytic reactivity of faujasite-type zeolites were investigated by periodic DFT calculations. The adsorption energies of ammonia and pyridine on the Brønsted acid site (BAS) were used to determine the ...
Li, G Guanna +7 more
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