The present invention is a catalyst for a photocatalytic reaction for the production of hydrogen by hydrolysis and a preparation method thereof. A preparation method of a catalyst for a photocatalytic reaction for the production of hydrogen by hydrolysis, comprising: after dispersing the ZnO nanorods into a solvent, adding TiCl.sub.4 and water, followed by hydrothermal treatment, washing and drying to obtain a ZnO@TiO.sub.2(B) nanoflower catalyst, i.e. the catalyst. According to the present invention, a catalyst for a photocatalytic reaction for the production of hydrogen by hydrolysis and a preparation method thereof, embedding ZnO nanocrystals into a TiO.sub.2(B) lattice can improve the stability of photocatalytic hydrogen production.

The present disclosure provides a catalyst for a water gas shift reaction at middle temperature, the catalyst comprising a catalytically active component containing 40 to 80 mol % of copper (Cu), 15 to 50 mol % of zinc (Zn), and 1 to 13 mol % of aluminum (Al), relative to all metals of the catalyst, wherein an aluminum-rich layer is present in a surface layer of a particle of the catalyst. Furthermore, the present disclosure provides a preparation method of the catalyst, and a hydrogen preparation method using the same.

The present disclosure provides catalysts, comprising: copper; zinc; one or more first elements selected from iron, nickel, or cobalt; aluminum; oxygen; optionally, one or more second elements selected from a Group V, VI, VII, VIII, IX, X, and XI metal (e.g., manganese, silver, niobium, zirconium, molybdenum, ruthenium, or palladium); and optionally, one or more Group IA metals, and wherein the first element is present in an amount of about 1 to about 40 wt. % (e.g., about 1 to about 10 wt. %, about 25 to about 40 wt. %, about 30 to about 40 wt. %, or about 35 to about 40 wt. %) of the total amount of the copper, zinc, first element, the optional second element, and the optional Group IA metal, and methods of using said catalyst in the production of ethanol and higher alcohols from carbon dioxide.

A metal oxide catalyst synthesized using supercritical carbon dioxide extraction is provided, wherein the metal oxide catalyst includes an active site containing at least one type of metal oxide and a support for loading the active site and the metal oxide is an oxide of a metal selected from the group consisting of transition metals (atomic number 21 to 29, 39 to 47, 72 to 79, or 104 to 108), lanthanide (atomic number 57 to 71), post-transition metals (atomic number 13, 30 to 31, 48 to 50, 80 to 84, and 112), and metalloids (atomic number 14, 32 to 33, 51 to 52, and 85) in the periodic table, and a combination thereof.

Catalyst for oxygen storage capacity applications that include a zinc doped manganese-iron spinel mixed oxide material. The zinc doped manganese-iron spinel mixed oxide material may be synthesized by a co-precipitation method using a precipitation agent such as sodium carbonate and exhibits a high oxygen storage capacity.

The present disclosures and inventions relate to a catalyst and methods for making same, which are useful in Fischer-Tropsch reactions.

A nanocomposite catalyst includes a support, a multiplicity of nanoscale metal oxide clusters coupled to the support, and one or more metal atoms coupled to each of the nanoscale metal oxide clusters. Fabricating a nanocomposite catalyst includes forming nanoscale metal oxide clusters including a first metal on a support, and depositing one or more metal atoms including a second metal on the nanoscale metal oxide clusters. The nanocomposite catalyst is suitable for catalyzing reactions such as CO oxidation, water-gas-shift, reforming of CO.sub.2 and methanol, and oxidation of natural gas.

The present disclosure provides a method of preparing a catalyst for synthesizing dimethyl ether or methylacetate from synthetic gas that includes preparing a nanosheet ferrierite zeolite (FER), and co-precipitating the nanosheet ferrierite zeolite and a precursor of a Cu—Zn—Al-based oxide (CZA) to obtain a hybrid CZA/FER catalyst.

The present invention relates to a catalyst for a hydrocarbon resin hydrogenation reaction and a preparation method for the same, wherein the catalyst is a nickel powder catalyst including nickel (Ni), copper (Cu), and sulfur (S), and more particularly, a nickel-based catalyst for a hydrogenation reaction, which is added to a hydrogenation reaction in order to improve the color of the hydrocarbon resin. According to an embodiment of the present invention, provided is a catalyst for a hydrogenation reaction, includes 40-80 parts by weight of nickel, 0.01-5 parts by weight of copper, 1-10 parts by weight of sulfur, and 10-60 parts by weight of a silica support based on 100 parts by weight of the entire dried catalyst including a support. Therefore, the catalyst can improve the quality of hydrocarbon resin. Furthermore, the catalyst can provide colorless, odorless, and transparent water-white hydrocarbon resin with improved thermal stability by removing unsaturated bonds in the hydrocarbon resin.

An oligomerization catalyst, oligomer products, methods for making and using same. The catalyst can include a supported nickel phosphate compound. The catalyst is stable at oligomerization temperatures of 500° C. or higher and particularly useful for making oligomer products containing C4 to C26 olefins having a boiling point in the range of 170° C. to 360° C.