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. The method may further comprise aerosolizing a catalyst support precursor mixture, drying the aerosolized catalyst support precursor mixture in a first heating zone to form an aerosolized flow of catalyst support particles, and contacting the catalyst support particles with a catalytically active compound precursor vapor in a second heating zone to form the catalyst comprising the layer of the catalytically active compound deposited on surfaces of the catalyst of catalyst support particles.

Disclosed are a heterogeneous catalyst, a production method thereof, and a method for producing a lignin-derived high-substituted aromatic monomer from a woody biomass material using the heterogeneous catalyst. The heterogeneous catalyst includes a carrier; and a NiAl nano-particle supported on the carrier.

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. The method may further comprise aerosolizing a catalyst support precursor mixture, drying the aerosolized catalyst support precursor mixture in a first heating zone to form an aerosolized flow of catalyst support particles, and contacting the catalyst support particles with a catalytically active compound precursor vapor in a second heating zone to form the catalyst comprising the layer of the catalytically active compound deposited on surfaces of the catalyst of catalyst support particles.

The present invention provides amorphous bi-functional catalytic aluminum metallic glass particles having an aluminum metallic glass core and 2 or more transition metals disposed on the surface of the aluminum metallic glass core to form amorphous bi-functional aluminum metallic glass particles with catalytic activity.

A hollow porous carbon nitride nanospheres composite loaded with AgBr nanoparticles, preparation method thereof, and its application in dye degradation are disclosed. Using silica nanosphere with core-shell structure as a template and hydrogen cyanamide as precursor, melting to enter the pores of mesoporous silica, after calcination, the silica template is etched with ammonium bifluoride to obtain hollow porous carbon nitride nanospheres; dispersing hollow porous carbon nitride nanospheres in deionized water, adding silver nitrate and sodium bromide in sequence, and obtaining silver bromide nanoparticles by in-situ ion exchange method, stirring, washing and centrifuging to obtain the hollow porous carbon nitride nanospheres composite. The hollow porous carbon nitride prepared by the template method has good photocatalytic effect on dye degradation after composite with silver bromide; and it has the advantages of easy production of raw materials, good stability, reusability, etc. It has application prospects in the treatment of dyes.

Disclosed are a perovskite compound, a method for producing the perovskite compound, a catalyst for a fuel cell including the perovskite compound, and a method for producing the catalyst. The perovskite compound overcomes the low stability of palladium due to its perovskite structural properties. Therefore, the perovskite compound can be used as a catalyst material for a fuel cell. In addition, the use of palladium in the catalyst instead of expensive platinum leads to an improvement in the price competitiveness of fuel cells. The catalyst is highly durable and catalytically active due to its perovskite structure.

A TiO.sub.2 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 TiO.sub.2, TiO.sub.(2-x), and TiO.sub.2*H.sub.2O, 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 TiO.sub.2 (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.

According to one or more embodiments, a mesoporous zeolite may included a microporous framework that includes a plurality of micropores having diameters of less than or equal to 2 nm, and a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm. The mesoporous zeolite may included an aluminosilicate material, a titanosilicate material, or a pure silicate material. The mesoporous zeolite may included a surface area of greater than 350 m.sup.2/g and a pore volume of greater than 0.3 cm.sup.3/g.

Provided is a hydrogenation method that with respect to a hydrocarbon mixture containing 1,3-butadiene and vinylacetylene, enables hydrogenation of vinylacetylene while inhibiting reduction of 1,3-butadiene concentration. The hydrogenation method is a method of hydrogenating a hydrocarbon mixture containing 1,3-butadiene and vinylacetylene that includes a step of bringing the hydrocarbon mixture and a hydrogenation catalyst into contact in the presence of hydrogen to hydrogenate at least vinylacetylene. The hydrocarbon mixture contains 1 mass % or more of vinylacetylene. The hydrogenation catalyst includes palladium and has a CO adsorption amount of 0.5 cm.sup.3/g or less.

A process for the preparation of a catalyst comprising palladium, a porous support with a specific surface area in the range 140 to 250 m.sup.2/g, said catalyst being prepared by a process comprising the following steps: a) preparing a colloidal solution of palladium oxide or palladium hydroxide in an aqueous phase; b) adding said solution obtained from step a) to said porous support at a flow rate in the range 1 to 20 litre(s)/hour; said porous support being contained in a rotary impregnation device functioning at a rotational speed in the range 10 to 20 rpm; c) optionally, submitting the impregnated porous support obtained from step b) to a maturation; d) drying the catalyst precursor obtained from step b) or c); e) calcining the catalyst precursor obtained from step d).