Mechanistic Insights into Aqueous Phase Propanol Dehydration in H-ZSM-5 Zeolite
Sign Up to like & getrecommendations! Published in 2017 at "Aiche Journal"
DOI: 10.1002/aic.15517
Abstract: Aqueous phase dehydration of 1-propanol over H-ZSM-5 zeolite was investigated using density functional theory (DFT) calculations. The water molecules in the zeolite pores prefer to aggregate via the hydrogen bonding network and be protonated at… read more here.
Keywords: aqueous phase; water; propanol; zsm zeolite ... See more keywords
Differentiating Diffusivity in Different Channels of ZSM‐5 Zeolite by Pulsed Field Gradient (PFG) NMR
Sign Up to like & getrecommendations! Published in 2019 at "ChemCatChem"
DOI: 10.1002/cctc.201901689
Abstract: Differentiating the diffusivity in straight channel and sinusoidal channel of ZSM‐5 zeolite is a prerequisite for catalyst optimization for the required product distribution with specific orientation. Herein, the intracrystalline diffusivities of n‐butane and iso‐butane in… read more here.
Keywords: pfg nmr; diffusion; zsm zeolite; field gradient ... See more keywords
Development of mesoporous ZSM-5 zeolite with microporosity preservation through induced desilication
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DOI: 10.1007/s10853-020-04855-5
Abstract: Alkali treatment is a widely used strategy to create mesopores for microporous zeolites to decrease the diffusion limitation in micropores. However, many of the micropore losses existed due to the uncontrollable destruction of framework. In… read more here.
Keywords: desilication; mesoporous zsm; development mesoporous; zsm zeolite ... See more keywords
Hierarchical ZSM-5 zeolite designed by combining desilication and dealumination with related study of n-heptane cracking performance
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Porous Materials"
DOI: 10.1007/s10934-018-0587-2
Abstract: The effect of the basic (NaOH) and/or acid (citric acid and EDTA-2Na) treatment of ZSM-5 zeolite has been studied comparing the structural and acidic features and their catalytic performance in n-heptane cracking. The properties of… read more here.
Keywords: heptane cracking; desilication dealumination; desilication; acid ... See more keywords
A facile and green method for the synthesis of hierarchical ZSM-5 zeolite aggregates from rice husk ash
Sign Up to like & getrecommendations! Published in 2018 at "Research on Chemical Intermediates"
DOI: 10.1007/s11164-018-3326-z
Abstract: Hierarchical ZSM-5 zeolite has been successfully synthesized from rice husk ash by a facile and solvent-free method. The obtained samples were characterized by X-ray diffraction, X-ray fluorescence, scanning electron microscopy, magic angle spinning nuclear magnetic… read more here.
Keywords: zsm zeolite; spectroscopy; hierarchical zsm; synthesis ... See more keywords
Seed-assisted, template-free synthesis of ZSM-5 zeolite from natural aluminosilicate minerals
Sign Up to like & getrecommendations! Published in 2018 at "Applied Clay Science"
DOI: 10.1016/j.clay.2018.03.025
Abstract: Abstract The hydrothermal synthesis of zeolite from chemical Al/Si source in the presence of structure directing agent is considered to be a resource extensive, energy consuming, and environmental unfriendly process. Herein, we report a novel,… read more here.
Keywords: seed; zeolite; zsm zeolite; seed assisted ... See more keywords
H-ZSM-5 zeolite model crystals: Structure-diffusion-activity relationship in methanol-to-olefins catalysis
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Catalysis"
DOI: 10.1016/j.jcat.2016.11.005
Abstract: Abstract Large ZSM-5 zeolite crystals synthesized in fluoride medium show an astonishing activity, stability as well as selectivity towards light olefins in the Methanol-To-Olefins (MTO) reaction. By proper control of the synthesis parameters, ZSM-5 single… read more here.
Keywords: diffusion; catalysis; structure; methanol olefins ... See more keywords
One-step synthesis of hierarchical lamellar H-ZSM-5 zeolite and catalytic performance of methanol to olefin
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Solid State Chemistry"
DOI: 10.1016/j.jssc.2021.122132
Abstract: Abstract In this paper, a hierarchical lamellar H-ZSM-5 zeolite (HLHZ) was successfully synthesized for methanol to olefin (MTO) by one-step crystallization, using urea instead of sodium hydroxide, and PEG2000 as soft-template. Urea was conducive to… read more here.
Keywords: hierarchical lamellar; zsm; chemistry; zsm zeolite ... See more keywords
Activation of Mo and V oxides supported on ZSM-5 zeolite catalysts followed by in situ XAS and XRD and their uses in oxydehydration of glycerol
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DOI: 10.1016/j.mcat.2018.07.029
Abstract: Abstract This paper describes the activation and catalytic performance of a multifunctional catalyst consisting of mixed oxides of vanadium and molybdenum supported on an acidic ZSM-5 zeolite. The zeolite was wet-impregnated with an aqueous solution… read more here.
Keywords: activation; xrd; glycerol; xas ... See more keywords
Catalytic performance of commercial Cu-ZSM-5 zeolite modified by desilication in NH3-SCR and NH3-SCO processes
Sign Up to like & getrecommendations! Published in 2017 at "Microporous and Mesoporous Materials"
DOI: 10.1016/j.micromeso.2017.03.017
Abstract: Abstract In the presented manuscript an influence of the mesoporosity generation in commercial ZSM-5 zeolite on its catalytic performance in two environmental processes, such as NO reduction with ammonia (NH 3 -SCR, Selective Catalytic Reduction… read more here.
Keywords: sco; catalytic performance; zsm zeolite;
Hydrothermally stable acid-modified ZSM-22 zeolite for selective propylene production via steam-assisted catalytic cracking of n-hexane
Sign Up to like & getrecommendations! Published in 2018 at "Microporous and Mesoporous Materials"
DOI: 10.1016/j.micromeso.2017.10.016
Abstract: Abstract To enhance the textural properties and the hydrothermal stability of porous catalysts, ZSM-22 zeolite samples were treated with different concentrations of HF aqueous solutions (0.7, 1.0 and 1.5 wt%). ZSM-22 samples that were treated with… read more here.
Keywords: zsm samples; catalytic cracking; modified zsm; acidity ... See more keywords