Morphology controlled synthesis of H-type MFI zeolite with unique stacking structures by one-pot solvent-free strategy.
Sign Up to like & getrecommendations! Published in 2019 at "ChemSusChem"
DOI: 10.1002/cssc.201900663
Abstract: H-type aluminosilicate zeolites are extensively used as solid acidic catalysts and supports in industrial catalysis. However, the conventional synthesis methods involving hydrothermal synthesis and ion-exchange process suffer from severe water pollutions and toxic gas emissions.… read more here.
Keywords: type; type mfi; synthesis; mfi zeolite ... See more keywords
H/D reactivity and acidity of Brønsted acid sites of MWW zeolites: Comparison with MFI zeolite
Sign Up to like & getrecommendations! Published in 2019 at "Applied Catalysis A: General"
DOI: 10.1016/j.apcata.2019.02.024
Abstract: Abstract Acid site strength in MWW and MFI zeolites was investigated by isotopic exchange reaction between deuterated hydroxyl groups of zeolites and ethane molecules. The course of the reaction was monitored by FT-IR spectroscopy through… read more here.
Keywords: strength; reaction; acid sites; mww zeolites ... See more keywords
Cerium-polysulfide redox flow battery with possible high energy density enabled by MFI-Zeolite membrane working with acid-base electrolytes.
Sign Up to like & getrecommendations! Published in 2021 at "Chemosphere"
DOI: 10.1016/j.chemosphere.2021.132680
Abstract: A pH change can enable high-energy-density RFB (redox flow battery) in an aqueous medium. Nevertheless, a membrane to prevent the ion crossover is needed. This study adopted cerium and polysulfide in an acid-base combined electrolyte… read more here.
Keywords: mfi zeolite; base; energy density; acid base ... See more keywords
High-performance MFI zeolite hollow fiber membranes synthesized by double-layer seeding with variable temperature secondary growth
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2020.118573
Abstract: Abstract Hydrophobic MFI zeolite membranes are perm-selective to organic compounds over water and offer applications for organic/water separations. However, reproducible synthesis of MFI zeolite membranes with high organic selectivity remains a challenge. This paper reports… read more here.
Keywords: seed; zeolite; layer; mfi zeolite ... See more keywords
Conversion of ethyl acetate into benzene–toluene–xylene fraction over MFI zeolite-based catalysts
Sign Up to like & getrecommendations! Published in 2020 at "Mendeleev Communications"
DOI: 10.1016/j.mencom.2020.07.017
Abstract: Ethyl acetate conversion over MFI zeolite-based catalysts synthesized by the hydrothermal-microwave method was investigated for the first time. MFI zeolites in the proton form and promoted with zinc and chromium catalyzed ethyl acetate conversion to… read more here.
Keywords: mfi zeolite; conversion; zeolite based; based catalysts ... See more keywords
Entrapped NbOx clusters in MFI zeolite for sustainable acid catalysis
Sign Up to like & getrecommendations! Published in 2020 at "Microporous and Mesoporous Materials"
DOI: 10.1016/j.micromeso.2020.110361
Abstract: Abstract Entrapping the small NbOx clusters into MFI zeolite crystals was directly prepared via a facile hydrothermal method, assisting with the sodium citrate and EDTA-2Na to dissolve and chelate the niobium precursors. The existing states… read more here.
Keywords: clusters mfi; mfi zeolite; spectroscopy; acid catalysis ... See more keywords
Reaction of methanol to olefin using a membrane contactor on a silica substrate
Sign Up to like & getrecommendations! Published in 2021 at "Separation and Purification Technology"
DOI: 10.1016/j.seppur.2020.117647
Abstract: Abstract A MFI zeolite membrane was synthesized on a porous silica substrate. The defect-free MFI zeolite membrane was synthesized via a secondary growth method using seed crystals (Si/Al = 20) on a silica substrate in a parent… read more here.
Keywords: seed; mfi zeolite; silica substrate; contactor ... See more keywords
Cooperative Structure Direction of Diammonium Surfactants and Sodium Ions to Generate MFI Zeolite Nanocrystals of Controlled Thickness
Sign Up to like & getrecommendations! Published in 2017 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.6b05338
Abstract: The structure-directing effect of C18H37—N+(CH3)2—C6H12—N+(CH3)2—C6H13(Br–)2 surfactant (C18–6–6) for the formation of MFI zeolite nanosheets was investigated under various synthesis conditions containing a small amount of C18–6–6 in the presence or absence of Na+. Each synthesis… read more here.
Keywords: zeolite; zeolite nanosheets; mfi zeolite; small amount ... See more keywords
Unraveling the Effect of Silanol Defects on the Insertion of Single-Site Mo in the MFI Zeolite Framework.
Sign Up to like & getrecommendations! Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.1c03076
Abstract: The preparation of defect-free MFI crystals containing single-site framework Mo through a hydrothermal postsynthesis treatment is reported. The insertion of single Mo sites in the MFI zeolite samples with different crystal sizes of 100, 200,… read more here.
Keywords: framework; insertion; single site; insertion single ... See more keywords
Direct Evidence for Single Molybdenum Atoms Incorporated in the Framework of MFI Zeolite Nanocrystals.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.9b02589
Abstract: Direct evidence of the successful incorporation of atomically dispersed molybdenum (Mo) atoms into the framework of nanosized MFI zeolite is demonstrated for the first time. Homogeneous distribution of Mo with a size of 0.05 nm… read more here.
Keywords: molybdenum atoms; framework; mfi; mfi zeolite ... See more keywords
Decationation of MFI Zeolite with the Use of Direct-Current Electric Field
Sign Up to like & getrecommendations! Published in 2019 at "Petroleum Chemistry"
DOI: 10.1134/s0965544119080036
Abstract: A method is proposed for converting an MFI zeolite from the Na- to the H-form using an electric field in a dc electrodialyzer at low voltages in the range of 3 to 12 V. According… read more here.
Keywords: electric field; decationation mfi; mfi zeolite; decationation ... See more keywords