Quantification of external surface and pore mouth acid sites in unit-cell thick pillared MFI and pillared MWW zeolites
نویسندگان
چکیده
منابع مشابه
Catalytic Behavior of Brønsted Acid Sites in MWW and MFI Zeolites with Dual Meso- and Microporosity
The catalytic behavior of Brønsted acid sites in three acidic zeolite materials (one MWW and two MFI zeolites) containing dual meso-/microporosity was studied using ethanol dehydration and monomolecular conversion of propane and isobutane as probe reactions. The meso-/microporous MWW zeolite, MCM-36 or pillared MWW, consists of a zeolitic layer structure, with independent microporosity and meso...
متن کاملSelf-Pillared, Single-Unit-Cell Sn-MFI Zeolite Nanosheets and Their Use for Glucose and Lactose Isomerization.
Single-unit-cell Sn-MFI, with the detectable Sn uniformly distributed and exclusively located at framework sites, is reported for the first time. The direct, single-step, synthesis is based on repetitive branching caused by rotational intergrowths of single-unit-cell lamellae. The self-pillared, meso- and microporous zeolite is an active and selective catalyst for sugar isomerization. High yiel...
متن کاملSupporting Information Pillared Sn-MWW Prepared by a Solid-State-Exchange Method and its Use as a Lewis Acid Catalyst
متن کامل
Coordination pillared-layer type compounds having pore surface functionalization by anionic sulfonate groups.
Pillared-layer type 3D porous coordination polymers with 2-sulfonylterephthalate, 4,4'-bipyridine and Zn(2+) have metal-free sulfonate groups on the pore walls, providing Lewis basic property for acid guest sorption.
متن کاملLayered and pillared metal carboxyethylphosphonate hybrid compounds.
A series of carboxyethylphosphonate hybrid materials has been prepared: Mn(II)(O3PCH2CH2COOH) *H2O (1), Mn(III)(OH)(O3PCH2CH2COOH)*H2O (2), Al3(III)(OH)3(O3PCH2CH2CO2)2 *3H2O (3) and Cr2(III)(OH)3(O3PCH2CH2CO2) *3H2O (4). Compounds 1 and 2 were synthesized from Mn(III)(CH3COO)3 *2H2O under hydrothermal, or refluxing treatments, respectively. The crystal structures of the manganese-bearing solid...
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ژورنال
عنوان ژورنال: Microporous and Mesoporous Materials
سال: 2017
ISSN: 1387-1811
DOI: 10.1016/j.micromeso.2016.12.004