van de Graaf.Molecular mechanics studies on MFI-type zeolites:Part3.The monoclinic-orthorhombic phase transition. Zeolites . 1993de Vos Burchart E,Jansen J C,van de Graaf B,et al.Molecular Mechanics Studies on MFI-Type Zeolites.Part 4. Energetics of Crystal Growth Directing Agents. Zeolites ....
An MFI-type zeolite has been prepared in the system Na2O SiO2 Al2O3 H2N(CH2)6NH2 NH4F. The X-ray diffraction (XRD) pattern of the as-synthesized samples matches well with that of ZSM-5 synthesized in the hydrothermal system. Scanning electron microscopy (SEM) shows that large crystals of...
For the first time, two groups of iron-containing zeolites (MFI type) of general compositions (Hx)[Fex3+Si12x4+O24] (FeHZSM-5, module Si/Fe=34; hydrothermal method) and Fe2O3/(Hx)[Al3+xSi4+12xO24]×wH2O with the Fe2O3polycrystalline initial content 10, 35, 50 wt%. (Fe2O...
Methods of increasing the stability of the catalytic effect of MFI type zeolites and the total service life of catalysts based on themzeoliteMFImethanol into aromatic hydrocarbonsIncreasing the operational stability of MFI-type zeolite catalysts is topical for the creation of highly efficient catalysts ...
MFI-type zeolitesMesoporous SBA-15Solid-state NMR spectroscopyDesorption enthalpiesThe interaction and nature of surface sites for water and methanol sorption on MFI-type zeolites and mesoporous SBA-15 were investigated by solid-state NMR spectroscopy and correlated with the d...
In addition, we investigated the effect of the location of the acid sites using MFI-type zeolites with different external surface areas and core-shell MFI- type zeolites coated with silicalite-1 as inert shell layers. It was also found that both the acid sites on the outer surface and those...
Watanabe, R.; Yokoi, T.; Tatsumi, T., Synthesis and application of colloidal nanocrystals of the MFI-type zeolites. J. Colloid Interf. Sci. 2011, 356, (2), 434-441.Watanabe, R.; Yokoi, T.; Tatsumi, T. Synthesis and Application of Colloidal Nanocrystals of the MFI-Type Zeolites. J...
In automotive sensing applications, to avoid ammonia being oxidized by NO according to the SCR reaction in Equation (1), H-ZSM-5 or other catalytically inactive zeolites with a high Si/Al ratio are preferred. Such zeolite materials are relatively less conductive due to the larger distances ...
It is shown that the spontaneous formation of self-pillared pentasil zeolites can be induced by using either MEL or MFI zeolite as seeds, which shows the advantages of a high-yield and high-acid site concentration compared with the conventional ZSM-5 zeolite. As a result, the self-pillared ...
Beerdsen Edith,Dubbeldam, David,Smit, Berend,Vlugt, Thijs J H,Calero, Sofia.Simulating the effect of nonframework cations on the adsorption of alkanes in MFI-type zeolites.Journal of Physical Chemistry B. 2003Beerdsen E, Dubbeldam D, Smit B, et al. Simulating the effect of nonframework ...