Catalytic fast pyrolysis of cellulose to aromatics over hierarchical nanocrystalline ZSM-5 zeolites prepared using sucrose as a template
Sign Up to like & getrecommendations! Published in 2018 at "Catalysis Communications"
DOI: 10.1016/j.catcom.2018.03.016
Abstract: Abstract In this work, hierarchical ZSM-5 zeolites were prepared by a hard template method (pre-crystallization and dry gel) using sucrose to obtain suitable mesopores for the catalytic fast pyrolysis (CFP) of cellulose to produce aromatics.… read more here.
Keywords: fast pyrolysis; zsm zeolites; catalytic fast; using sucrose ... See more keywords
Hydrophobic-hydrophilic balance of ZSM-5 zeolites on the two-phase ketalization of glycerol with acetone
Sign Up to like & getrecommendations! Published in 2020 at "Catalysis Today"
DOI: 10.1016/j.cattod.2020.07.008
Abstract: Abstract Herein, ZSM-5 zeolites of several Si/Al mole ratios, and varying hydrophobicity were used as catalysts in the ketalization of glycerol. The water formed in the reaction adsorbs on acidic sites, hampering the catalytic conversion… read more here.
Keywords: phase; ketalization glycerol; glycerol acetone; zsm zeolites ... See more keywords
Reaction rate enhancement by reducing surface diffusion barriers of guest molecules over ZSM-5 zeolites: a structured illumination microscopy study
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2021.132760
Abstract: Abstract Mass transfer of guest molecules is crucial for zeolite catalysis. Compared to intracrystalline diffusion, the surface barriers in zeolite catalysis have been less understood. Taking furfuryl alcohol oligomerization catalyzed by ZSM-5 zeolites as model… read more here.
Keywords: guest molecules; microscopy; zsm zeolites; surface ... See more keywords
Insights to the hydrothermal synthesis of highly crystalline aluminum-free Na[Co]ZSM-5 zeolites and their CO2 adsorption performance
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2021.161225
Abstract: Abstract In this work, MFI-type cobaltosilicates as inorganic polymers consisting of tetrahedral TO4 (T = Si and Co) building units were synthesized by utilization of a novel pretreatment method aimed for the silicon precursor activation. Crystallization of… read more here.
Keywords: co2 adsorption; adsorption; zsm zeolites; co2 ions ... See more keywords
Polynuclear Co-oxo cations in the catalytic oxidation of CO on Co-modified ZSM-5 zeolites
Sign Up to like & getrecommendations! Published in 2019 at "Materials Chemistry and Physics"
DOI: 10.1016/j.matchemphys.2018.11.005
Abstract: Abstract Structure, reducibility and catalytic activity in the oxidation of CO were studied for Co-modified ZSM-5 zeolites (Co/Al = 0.1–0.9) prepared via impregnation, solid-state and wet ion exchange. According to TEM, XPS, DRIFTS, UV–vis-DRS, H2 -TPR and… read more here.
Keywords: modified zsm; zsm zeolites; oxidation; catalytic oxidation ... See more keywords
Improved catalytic performance and decreased coke formation in post-treated ZSM-5 zeolites for methanol aromatization
Sign Up to like & getrecommendations! Published in 2017 at "Microporous and Mesoporous Materials"
DOI: 10.1016/j.micromeso.2016.11.014
Abstract: Abstract The effects of the zeolite structure and acidity on the catalyst life and coke formation in the methanol-to-aromatics (MTA) reaction were investigated using several MFI zeolites with different degrees of mesoporosity and acidity. These… read more here.
Keywords: improved catalytic; zsm zeolites; coke formation; mesoporosity ... See more keywords
Phosphorus modified hierarchically structured ZSM-5 zeolites for enhanced hydrothermal stability and intensified propylene production from 1-butene cracking
Sign Up to like & getrecommendations! Published in 2017 at "Microporous and Mesoporous Materials"
DOI: 10.1016/j.micromeso.2017.03.037
Abstract: Abstract Hierarchically structured ZSM-5 zeolites (HSZ) were synthesized by a mesoporogen-free procedure and subsequently modified with varied amounts of phosphorus (1–3 wt%) through impregnation of phosphoric acid solution. Materials characterization using various techniques showed that the… read more here.
Keywords: zsm zeolites; structured zsm; hierarchically structured; hydrothermal stability ... See more keywords
Synergy effect between hierarchical structured and Sn-modified H[Sn, Al]ZSM-5 zeolites on the catalysts for glycerol aromatization
Sign Up to like & getrecommendations! Published in 2018 at "Microporous and Mesoporous Materials"
DOI: 10.1016/j.micromeso.2017.08.039
Abstract: Abstract Hierarchical H[Sn, Al]ZSM-5 zeolites were successfully prepared by hydrothermal method with directly incorporating Sn species into framework of HZSM-5 zeolites followed by alkali treatment. The prepared samples were characterized by XRD, BET, SEM-EDX, TEM,… read more here.
Keywords: zsm zeolites; glycerol aromatization; zsm; synergy effect ... See more keywords
Effect of framework Al siting on catalytic performance in methanol to aromatics over ZSM-5 zeolites
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Fuel Chemistry and Technology"
DOI: 10.1016/s1872-5813(19)30058-1
Abstract: Abstract ZSM-5 zeolites with different framework Al (AlF) siting were hydrothermally synthesized by adding mineralizer, urea, or by changing the silicon source. The morphology, textural properties, AlF siting, and acidity of different ZSM-5 zeolites were… read more here.
Keywords: methanol aromatics; zsm zeolites; framework; catalytic performance ... See more keywords
Hierarchical ZSM-5 Zeolites with Tunable Sizes of Building Blocks for Efficient Catalytic Cracking of i-Butane
Sign Up to like & getrecommendations! Published in 2018 at "Industrial & Engineering Chemistry Research"
DOI: 10.1021/acs.iecr.8b02421
Abstract: Hierarchical ZSM-5 zeolites have been receiving increasing attention from both fundamental research and industrial applications. From the chemical engineering viewpoint, the introduction of building block of ZSM-5 could give consideration to both external surface acidities… read more here.
Keywords: building blocks; catalytic cracking; zsm zeolites; hierarchical zsm ... See more keywords
Probing Disorder in Al-ZSM-5 Zeolites by 14N NMR Spectroscopy
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.7b04861
Abstract: 14N solid-state NMR spectroscopy is used to investigate and quantify the nanometer scale disorder promoted by Al/Si substitution in ZSM-5 zeolites. After a preliminary characterization by SEM, XRD, and multinuclear (1H, 13C, 19F, 27Al, 29Si)… read more here.
Keywords: zsm zeolites; disorder; nmr spectroscopy; 14n nmr ... See more keywords