摘要:
A photocatalytic functional film has a structure of a substrate, a barrier layer and a photocatalytic layer stacked one on another. The barrier layer is an amorphous TiO2 film, the photocatalyst layer comprises an amorphous TiO2 film, and particles of visible light responsive photocatalytic material formed on the surface of the amorphous TiO2 film. A method for producing a photocatalytic functional film includes: adding an alcohol solvent and an acid to a titanium precursor to obtain a TiO2 amorphous sol by dehydration and de-alcoholization reaction; applying and drying the TiO2 amorphous sol on a substrate to form a barrier layer; and applying and drying a composition formed by mixing particles of visible light responsive photocatalyst material with the TiO2 amorphous sol on the barrier layer, to form a photocatalyst layer.
摘要:
Disclosed here are material formulations of use in the conversion of exhaust gases, where the formulations may include Copper (Cu), Cerium (Ce), Tin (Sn), Niobium (Nb), Zirconium (Zr), Calcium (Ca) and combinations thereof.
摘要:
This invention provides new, effective pyrolysis catalysts adapted for use in pyrolysis of biomass, to the preparation of such catalysts, and to the use of such catalysts in the pyrolysis of biomass in the absence of added air, added molecular oxygen, and added molecular hydrogen, and liquids such as water. The catalysts are layered HTCs and related materials which are impregnated with specified pairs of metals, which impregnated layered HTCs and related materials have been calcined in air at elevated temperatures.
摘要:
Processes for preparing an amine are described which comprise reacting a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group of ammonia, primary and secondary amines, in the presence of a zirconium dioxide-, copper- and nickel-containing catalyst. The catalytically active composition of the catalyst, before its reduction with hydrogen, comprises oxygen compounds of zirconium, of copper, of nickel, in the range from 1.0 to 5.0% by weight of oxygen compounds of cobalt, calculated as CoO, and in the range from 0.2 to 5.0% by weight of oxygen compounds of sulfur, of phosphorus, of gallium, of lead and/or of antimony, calculated in each case as H2SO4, H3PO4, Ga203, PbO and Sb203 respectively.
摘要翻译:描述了制备胺的方法,其包括使伯醇或仲醇,醛和/或酮与氢和选自氨,伯胺和仲胺的氮化合物在二氧化锆,铜 - 和含镍催化剂。 催化剂的催化活性组合物在用氢还原之前,包括锆的镍氧化合物,镍的氧化合物为1.0至5.0重量%,钴的氧化合物(以CoO计),范围为 0.2至5.0重量%的硫,磷,镓,铅和/或锑的氧化合物,分别计算为H 2 SO 4,H 3 PO 4,Ga 2 O 3,PbO和Sb 2 O 3。
摘要:
Disclosed is a nano-sized Cu based catalyst and a method of preparing the same including dissolving, in an aqueous solution, a first component comprising a Cu precursor, a second component precursor comprising one or more selected from the group consisting of a transition metal, an alkaline earth metal and a Group IIIb metal, and a third component precursor comprising one or more selected from the group consisting of alumina, silica, silica-alumina, magnesia, titania, zirconia and carbon and then performing stirring; precipitating the stirred mixture solution using Na2CO3 and NaOH to form a catalyst precursor precipitate; and washing and filtering the formed catalyst precursor precipitate. Also a method of preparing alcohol is provided, including reacting hydrogen with carboxylic acid including a single acid or an acid mixture of two or more acids derived from a microorganism fermented solution, using the nano-sized Cu based catalyst.
摘要翻译:公开了一种纳米尺寸Cu基催化剂及其制备方法,包括在水溶液中溶解包含Cu前体的第一组分,第二组分前体,其包含一种或多种选自过渡金属, 碱土金属和IIIb族金属,第三组分前体,其包含选自氧化铝,二氧化硅,二氧化硅 - 氧化铝,氧化镁,二氧化钛,氧化锆和碳中的一种或多种,然后进行搅拌; 使用Na 2 CO 3和NaOH沉淀搅拌的混合物溶液以形成催化剂前体沉淀物; 并且洗涤和过滤形成的催化剂前体沉淀。 还提供了一种制备醇的方法,包括使用纳米尺寸的Cu基催化剂使氢气与包含单一酸或来自微生物发酵溶液的两种或更多种酸的酸混合物的羧酸反应。
摘要:
Photocatalytic water splitting is employed as a method to directly obtain clean hydrogen from solar radiation by using hybrid nanoparticles with metallic cores and semiconductor photocatalytic shells. Efficient unassisted overall photocatalytic splitting of water is based on resonant absorption from surface plasmon in metal core/semiconductor shell hybrid nanoparticles, which can extend the absorption spectra further towards the visible-near infrared range, thus dramatically increasing the solar energy conversion efficiency. When used in combination with scintillator nanoparticles, the hybrid photocatalytic nanoparticles can be used for conversion of nuclear energy into hydrogen.
摘要:
The instant invention relates to a bulk metal hydrotreating catalyst used for hydrotreating diesel boiling range feedstreams to produce low sulfur diesel products.
摘要:
Compositions of matter, including: a composition consisting of iron oxide and magnesium oxide; a composition comprising iron oxide, manganese oxide and magnesium oxide; a composition comprising a small amount of iron oxide and a larger amount of an oxide of a Lanthanum Series metal, particularly lanthanum and cerium; and a composition comprising iron oxide and niobium oxide. The above compositions are particularly useful as catalytic compositions for the conversion of C.sub.3 and C.sub.4 hydrocarbons to less saturated hydrocarbons, particularly ethylene and propylene and preferably ethylene, in the presence of steam. The steam substantially increases the active life of the catalytic composition, before regeneration is necessary, as well as significantly increasing the selectivity to ethylene. Limiting the amount of bound or fixed sulfur in the catalytic compositions also improves the catalysts.
摘要:
A catalyst for catalytically reducing nitrogen oxides present in an exhaust gas in the presence of a reducing gas to convert said nitrogen oxides to harmless substances, which comprises a mixture consisting essentially of the oxides of V and Nb.
摘要:
Disclosed is a nano-sized Cu based catalyst and a method of preparing the same including dissolving, in an aqueous solution, a first component comprising a Cu precursor, a second component precursor comprising one or more selected from the group consisting of a transition metal, an alkaline earth metal and a Group IIIb metal, and a third component precursor comprising one or more selected from the group consisting of alumina, silica, silica-alumina, magnesia, titania, zirconia and carbon and then performing stirring; precipitating the stirred mixture solution using Na2CO3 and NaOH to form a catalyst precursor precipitate; and washing and filtering the formed catalyst precursor precipitate. Also a method of preparing alcohol is provided, including reacting hydrogen with carboxylic acid including a single acid or an acid mixture of two or more acids derived from a microorganism fermented solution, using the nano-sized Cu based catalyst.
摘要翻译:公开了一种纳米尺寸Cu基催化剂及其制备方法,包括在水溶液中溶解包含Cu前体的第一组分,第二组分前体,其包含一种或多种选自过渡金属, 碱土金属和IIIb族金属,第三组分前体,其包含选自氧化铝,二氧化硅,二氧化硅 - 氧化铝,氧化镁,二氧化钛,氧化锆和碳中的一种或多种,然后进行搅拌; 使用Na 2 CO 3和NaOH沉淀搅拌的混合物溶液以形成催化剂前体沉淀物; 并且洗涤和过滤形成的催化剂前体沉淀。 还提供了一种制备醇的方法,包括使用纳米尺寸的Cu基催化剂使氢气与包含单一酸或来自微生物发酵溶液的两种或更多种酸的酸混合物的羧酸反应。