摘要:
The present invention provides a facile heteroepitaxial method for growing conductive zinc-catecholate frameworks on bio-fibers with biomimetic connections, which is beneficial to fabricate biocompatible and high-performance photodetectors and chemiresistors, and the corresponding bio-fiber based metal-organic framework. In this method, a conductive layer is first introduced on the surface of polysaccharide bio-fibers, before well-aligned zinc oxide nanoarrays were densely constructed on the bio-fibers by a physiological coagulation mechanism. The obtained fibrous materials may be used in devices, including in electronic components, having the advantages of good stability, environmental-friendly, flame retardancy, and high response.
摘要:
A lithium-ion battery separator includes a substrate defining inter-particle pores and a zeolite coating on a surface of the substrate. The zeolite coating includes zeolite particles. The zeolite particles are hydrophobic and have an average diameter smaller than an average pore size of inter-particle pores of the substrate, such that some of the zeolite particles are positioned in some of the inter-particle pores. The separator is non-flammable. In a lithium-ion battery, the substrate is a first electrode, and a second electrode is in direct contact with the zeolite coating. The lithium-ion battery includes a non-flammable salt-concentrated electrolyte, and the zeolite coating has a high wettability for the electrolyte. The lithium-ion battery is non-flammable.
摘要:
La présente invention concerne un solide cristallisé, appelé IZM-5, comprenant une composition chimique exprimée sur une base anhydre, en termes de moles, définie par la formule générale suivante: Sn a Zn b S 8 : cR où R représente au moins une espèce organique azotée; S le soufre, «a» est la quantité molaire de l'étain, noté Sn, compris entre 0,1 et 5; «b» est la quantité molaire du zinc, noté Zn, compris entre 0,2 et 8; «c» est la quantité molaire de l'espèce organique azotée R compris entre 0 et 4.
摘要:
A process for producing zeolites comprising: a) calcining a clay material to form an amorphous material from clay components in the clay material, b) leaching the material from step (a) in a leaching solution to produce a solution containing dissolved aluminium and dissolved silica and a solid residue, c) separating the solid residue from the solution, and d) crystallising zeolites from the solution from step (c).
摘要:
It relates to a microporous aluminotitanosilicate crystalline zeolite, method of preparation and applications thereof. It extends to a catalytic hydroxylation, by reaction of a compound of formula (I) with H 2 O 2 in the presence of a catalyst comprising the zeolite.
摘要:
Provided are process for the manufacture of ethylene glycol starting from ethylene oxide (EO) and said process using a reaction mixture comprising EO, a Ti-MWW zeolite and water.
摘要:
A catalyst includes a zeolite, wherein the zeolite has: a CHA framework; a particle size less than or equal to 100 nanometers; and a silica to alumina mole ratio in the range of about 50:1 to about 150:1. The catalyst can include a metal dopant. The catalyst can be used for purifying a product by flowing a reactant across the catalyst to form the product; and condensing or separating the product. The product can be an olefin or alkenes with an increased carbon chain. The catalyst can be used for selective catalytic reduction of nitrogen oxide or a gas to liquid reaction. A method of producing the catalyst can include selecting the concentration of a crystal growth inhibitor based on the ratio of the silica precursor and an alumina precursor such that the zeolite crystals have a mean particle size less than or equal to 100 nanometers.
摘要:
A method, comprising i) contacting an aqueous solution of an organic ligand salt of the formula A X (L -X ) with a mesoporous material (MPM) to form an impregnated mesoporous salt material of the formula A X (L -X )/MPM, ii) treating the impregnated mesoporous salt material with an aqueous acidic solution to form an impregnated mesoporous acid material of the formula H X (L -X )/MPM, iii) contacting an aqueous solution of a metal precursor of the formula M +y (B)y with the impregnated mesoporous acid material to form an impregnated mesoporous metal organic framework precursor of the formula [M +y (B) y ][H x (L -x )]/MPM, and iv) at least one of 1) heating the impregnated mesoporous metal organic framework precursor in the absence of a solvent or 2) exposing the impregnated mesoporous metal organic framework precursor to a volatile vapor in the absence of a solvent such that the heating or the exposing forms a hybrid material of the formula (M +y L -x )/MPM, wherein the hybrid material comprises a nano-crystalline metal organic framework (MOF) embedded within the mesoporous material.