Abstract: A structure in which a plurality of particles each containing a hydrogen absorption metal element are arranged in a fixed member such that the plurality of particles are apart from each other. An entire surface of each of the plurality of particles is surrounded by the fixed member. The fixed member contains at least one of an oxide and a nitride.

Abstract: A Pd-supporting Zr-based composite oxide wherein by having a Zr-containing composite oxide support and Pd supported thereon and by showing, upon XAFS (X-ray absorption fine structure) analysis, a maximum peak in a Pd bond distance range of 2.500-3.500 ?, the maximum peak being located in a position of 3.050-3.110 ?.

Abstract: The present invention relates to a method for producing a silica aerogel blanket, the method comprising recovering a supercritical waste liquid generated after performing a step of supercritical drying, neutralizing the recovered supercritical waste liquid by adding an acid thereto for recycling, and reusing the recycled supercritical waste liquid, and a silica aerogel blanket produced thereby.

Abstract: Described is an adsorbent, a vacuum heat insulating material having the same and a refrigerator, which are capable of adsorbing a target material in a reduced pressure environment. A refrigerator includes an outer casing forming an exterior, an inner casing provided inside the outer casing and forming a storage chamber and a vacuum heat insulating material positioned between the outer casing and the inner casing, and including an adsorbent that adsorbs a heat transfer medium. The adsorbent includes a first adsorption component provided to adsorb oxygen, and including a transition metal oxide having an oxygen deficiency structure, and a second adsorption component provided to adsorb moisture.

Abstract: A composition and method for producing the ultra-tough nanocomposite aerogel are disclosed. The ultra-tough nanocomposite aerogel may include a dispersion of at least one filler in an aerogel. This method is used to improve the mechanical properties of aerogel by preserving the microstructural and thermal properties of the aerogel, as the addition of the filler leads to an increase in the mechanical properties without any significant increase in the density.

Abstract: Provided is a method for producing a zinc ferrite catalyst, the method comprising: preparing a zinc precursor solution; preparing a ferrite precursor solution; obtaining a first precipitate by bringing the zinc precursor solution into contact with an alkaline solution; obtaining a second precipitate by adding the ferrite precursor solution to the first precipitate; and drying and firing the second precipitate after filtering the second precipitate.

Abstract: The present invention relates to a process for producing mixed oxide catalysts on the basis of molybdenum and bismuth oxides in which the precursor compounds of the components of mixed oxide catalysts provided in the form of a solution and/or suspension are subjected to a spray-drying with a specific temperature regime and the spray particles obtained in this way are then calcined to yield a catalytic active mass, and to the mixed oxide catalysts obtainable by this process and to the use of these catalysts in the partial oxidation of olefins, in particular in the partial gas phase oxidation of propene to acrolein and acrylic acid. The spray drying of the precursor compounds containing solution or suspension is performed in concurrent with a gas stream having a specific entrance temperature. Alternatively, when the main gas stream has a higher entrance temperature, an additional colder gas stream can be fed in downstream.

Abstract: The invention relates to a porous carrier system for reducing the emission of formaldehyde in a wood-based material, which comprises a formaldehyde-binding substance A and a hydroxide-releasing substance B. The invention further relates to a method for producing the porous carrier system, the use of the porous carrier system to reduce the emission of formaldehyde in a wood-based material, a wood-based material comprising the porous carrier system, and a method for producing said wood-based material.

Abstract: Provided are a preparation method of a silica aerogel-containing blanket which includes mixing a water glass solution, a polar organic solvent, and a silazane-based surface modifier to prepare a sol, preparing a silica gel-base material composite by immersion and gelation of a base material for a blanket in the sol, and drying the silica gel-base material composite, and a silica aerogel-containing blanket prepared by using the preparation method. A silica aerogel-containing blanket having a high degree of hydrophobicity as well as excellent physical properties, particularly, low tap density, high porosity, and excellent mechanical flexibility can be prepared by the minimal use of a surface modifier without a surface modification step by the above method.

Abstract: A ceria-zirconia-based composite oxide containing a composite oxide of ceria and zirconia is provided, in which primary particles having a particle diameter of 1.5 to 4.5 ?m account for, on a particle number basis, at least 50% of all primary particles in the ceria-zirconia-based composite oxide, and the molar ratio of cerium to zirconium in the ceria-zirconia-based composite oxide is between 43:57 and 55:45.

Abstract: A filter aid composition may include a first acid-treated silica-based filter aid having a first particle size distribution and a second acid-treated silica-based filter aid having a second particle size distribution. A method of making a filter aid composition may include providing a first silica-based filter aid having a first particle size distribution, providing a second silica-based filter aid having a second particle size distribution, and blending the first silica-based filter aid with the second silica-based filter aid to form the filter aid composition. A method of filtering a fluid may include providing a filter aid composition including a first acid-treated silica-based filter aid and a second acid-treated silica-based filter aid and filtering the fluid through the filter aid composition. The filter aid composition may have a multimodal particle size distribution such that the first particle size distribution has a d50 greater than the second particle size distribution.

Abstract: The present invention concerns a method for the preparation of metal oxide hollow nanoparticles comprising the steps of: —providing an aqueous suspension of nanoparticles of an oxide of a first element having at least two oxidation states coupled with a substrate; —placing in contact the aqueous suspension with an aqueous solution of a salt of a second element having at least two oxidation states having a standard reduction potential lower than the standard reduction potential of said first transition metal to obtain hollow nanoparticles.

Abstract: The present specification provides a ferrite catalyst, a method for preparing the same and a method for preparing butadiene using the same.

Abstract: The present disclosure relates to a method for preparing aluminosilicate particles having excellent dispersion, a reinforcing material for rubber including the aluminosilicate particles, and a rubber composition for tires including the same. The reinforcing material for rubber including the aluminosilicate particles prepared by the method of the present disclosure can exhibit excellent dispersibility in the rubber composition and an enhanced reinforcing effect, so that it can be suitably used in eco-friendly tires requiring high efficiency and high fuel efficiency.

Abstract: A method of producing a catalyst comprises generating an aerosolized flow of catalyst support particles, heating a catalytically active compound precursor to produce a catalytically active compound precursor vapor, contacting the aerosolized flow of catalyst support particles with the catalytically active compound precursor vapor, and condensing the catalytically active compound precursor onto the catalyst support particles to produce the catalyst comprising catalytically active compound deposited on surfaces of the catalyst support particles.

Abstract: Catalyst articles comprising palladium and related methods of preparation and use are disclosed. Disclosed is a catalyst article comprising a first catalytic layer formed on a substrate, wherein the first catalytic layer comprises palladium impregnated on a ceria-free oxygen storage component and platinum impregnated on a refractory metal oxide, and a second catalytic layer formed on the first catalytic layer comprising platinum impregnated on an oxygen storage component and rhodium impregnated on a zirconia-coated or yttria-coated alumina. The palladium component of the catalyst article is present in a higher proportion relative to the other platinum group metal components. The catalyst articles provide improved reductions in NOx in exhaust gases, particularly after lean-rich aging.

Abstract: A TiO2 photocatalytic particle comprises at least one core with a crystalline anatase structure, a first layer is at least partly surrounding the core, and comprising one from TiO2, TiO(2-x), and TiO2*H2O, said first partly ordered layer comprising parts where molecules are aligned with an imaginary extension of the crystal planes of the core, the first layer is in close contact with a second outer layer, at least partly enclosing the first layer and the core. The second layer comprises one from layered titanium dioxide and titanium dioxide in TiO2 (B)-form, said second layer is partly ordered, and said second layer comprising sheets aligned with crystal planes transversal to the outer surface of said particle. Advantages include that the outer layer of the particles can be modified to be optimized for the particular application which is an advantage for catalysis and other application where the properties of the outermost surface is of importance.

Abstract: It is provided a process of producing amorphous silica from a raw material, such as serpentine, containing silica comprising the steps of mixing the raw material with a hydrochloric acid solution; leaching the raw material obtaining a slurry comprising a liquid fraction and a solid fraction containing silica and minerals; separating the liquid fraction and the solid fraction; removing the minerals from the solid fraction by magnetic separation producing a purified solid silica; drying the purified solid silica; and heating the purified solid silica to remove hydroxyl groups from the silica surface and reducing specific surface area of the resulting amorphous silica.

Abstract: The present invention is directed to a nanostructured binary oxide TiO2—Al2O3 with high acidity and its synthesis process via the sol-gel method, hydrotreating and thermal activation. The nanostructured binary oxide TiO2—Al2O3 with high acidity consists basically of titanium oxide and aluminum oxide with the special characteristic of being obtained as nanostructures, in their nanocrystal-nanotube evolution, which provides special physicochemical properties such as high specific area, purity and phase stability, acidity stability and different types of active acid sites, in addition to the capacity to disperse and stabilize active metal particles with high activity and selectivity mainly in catalytic processes.

Abstract: The present disclosure relates to catalyst support materials and cobalt catalyst materials including such support materials, and their uses in Fischer-Tropsch processes. In certain aspects, a catalyst support material includes alumina, silicon oxide and titanium dioxide. In other aspects, a catalyst material includes a catalyst support material as described herein, with a catalytic metal such as cobalt disposed thereon.