Comparing synthesis routes to nano-crystalline zeolite ZSM-5
نویسندگان
چکیده
منابع مشابه
Film Formation and Anticorrosive Behavior of Zn-ZSM-5 Nano-Sized Zeolite Composite Coatings
The zincZeolite Socony Mobil-Five nano-particles (Zn-ZSM-5 NPs) composite was prepared and applied successfully as a new coating material to improve the corrosion resistance of steel. The corrosion type and quality of both pure zinc and our new coating material, Zn-ZSM-5 NPs, were studied using mass loss, impedance and electro-chemical polarization techniques in a sodium chloride solution. Obta...
متن کاملZeolite ZSM-5 Membranes Grown on Porous a-A1203
Zeolites have found widespread applications as catalysts and separation media. A L present, all technologies exploiting these materials use the zeolite in powder composite form. The desire to translate the molecular sieving properties of zeolite powder composites into a membrane configuration has long been recognized. To prepare such a membrane, the crystals must grow in an interlockng fashion ...
متن کاملHigh-pressure cation-exchange treatment of a ZSM-5 zeolite
ZSM-5 zeolite is an aluminosilicate that usually has a high silica-to-alumina ratio. It contains two sets of nanopores. One set of nanopores is straight, with the cross-sectional size of 5.3 5.6 Å; the other set is Sshaped, with the cross-sectional size of 5.2 5.5 Å. An A1 atom at the center of an AlO4 tetrahedron connects to adjacent SiO4 tetrahedron by sharing an O atom and thus generates a n...
متن کاملXylenes Reactions and Diffusions in ZSM-5 Zeolite based Catalyst
Xylenes transformations have been investigated over ZSM-5 zeolite in a riser simulator that mimics closely the operation of commercial fluidized-bed reactors. P-xylene was found to be more reactive than the other isomers followed by o-xylene and m-xylene was found to be least reactive. The order of reactivity is consistent with the order of diffusivity. At low temperature (400°C), isomerization...
متن کاملOptical properties of chalcogen-loaded zeolite (ZSM-5)
Sulfur, selenium, and tellurium were loaded into sub-mm size ZSM-5 single crystals and the optical properties have been comparatively studied. S and Te show similar features, while Se is unique. S and Te have optical absorption edges at wavelengths of ~400 nm with transmission dips at ~450 nm, while Se has the edge at ~550 nm. The three materials provide photoluminescence at visible wavelengths...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Microporous and Mesoporous Materials
سال: 2003
ISSN: 1387-1811
DOI: 10.1016/s1387-1811(02)00558-9