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.

The present invention relates to a selective catalytic reduction catalyst for the treatment of an exhaust gas of a diesel engine comprising (i) a flow-through substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the flow-through substrate extending therethrough; (II) a coating disposed on the surface of the internal walls of the substrate, where-in the surface defines the interface between the passages and the internal walls, wherein the coating comprises a vanadium oxide supported on an oxidic material comprising titania, and further comprises a mixed oxide of vanadium and one or more of iron, erbium, bismuth, cerium, europium, gadolinium, holmium, lanthanum, lutetium, neodymium, praseodymium, promethium, samarium, scandium, terbium, thulium, ytterbium, yttrium, molybdenum, tungsten, manganese, cobalt, nickel, copper, aluminum and antimony.

A mesoporous mixed oxide catalyst that comprises silicon and at least one metal M that is selected from the group that consists of the elements of groups 4 and 5 of the periodic table and mixtures thereof, with the mass of metal M being between 0.1 and 20% of the mixed oxide mass.

A mesoporous mixed oxide catalyst that comprises silicon and at least one metal M that is selected from the group that consists of the elements of groups 4 and 5 of the periodic table and mixtures thereof, with the mass of metal M being between 0.1 and 20% of the mixed oxide mass.

An iron-free supported catalyst for the selective conversion of hydrocarbons to carbon nanotubes may include cobalt and vanadium as active catalytic metals in any oxidation state on a catalyst support comprising aluminum oxide hydroxide. The mass ratio of cobalt to vanadium is between 2 and 15; the mass ratio of cobalt to aluminum is between 5.8 10.sup.−2 and 5.8 10.sup.−1; and the mass ratio vanadium to aluminum is between 5.8 10.sup.−3 and 8.7 10.sup.−2. The present disclosure is further related to a method for the production of this iron-free supported catalyst and to a method for the production of carbon nanotubes using the iron-free supported catalyst.

The invention relates to a V-Ni.sub.2P/g-C.sub.3N.sub.4 photocatalyst, a preparation method, and application thereof. The V-Ni.sub.2P/g-C.sub.3N.sub.4 photocatalyst is a composite material of V-Ni.sub.2P and g-C.sub.3N.sub.4, wherein V-Ni.sub.2P has the spherical structure formed by nanosheets; the mass ratio of the V-Ni.sub.2P and g-C.sub.3N.sub.4 is (0.01 to 0.2):1.

Provided is a method of preparing an intermetallic catalyst. The method includes form core-shell particles including a transition metal oxide coating layer by irradiating ultrasonic waves to a precursor mixture solution including a noble metal precursor, a transition metal precursor, and a carrier to; forming intermetallic particles including a transition metal oxide coating layer by annealing the core-shell particles; and removing the transition metal oxide coating layer from the intermetallic particles.

A multi-function catalyst article for treating both NO and carbon monoxide emissions in a flow of a combustion exhaust gas from a stationary emission source comprises a honeycomb monolith substrate comprising one or more channels which are open at both ends and extend along an axial length thereof and through which, in use, a combustion exhaust gas flows, which catalyst article comprising a catalyst composition comprising a combination of a first, vanadium-containing SCR catalyst component and a second component which is a compound of a transition metal comprising copper, manganese, cobalt, molybdenum, nickel or cerium or a mixture of any two or more thereof and optionally a third, crystalline molecular sieve component.

A catalyst comprising a barium niobate-based cubic perovskite structure where, Mg and Ca has been used to dope the niobium sites along with Fe, Ni, Co, Y, and Pr.

An iron-free supported catalyst for the selective conversion of hydrocarbons to carbon nanotubes may include cobalt and vanadium as active catalytic metals in any oxidation state on a catalyst support comprising aluminum oxide hydroxide. The mass ratio of cobalt to vanadium is between 2 and 15; the mass ratio of cobalt to aluminum is between 5.8 10.sup.−2 and 5.8 10.sup.−1; and the mass ratio vanadium to aluminum is between 5.8 10.sup.−3 and 8.7 10.sup.−2. The present disclosure is further related to a method for the production of this iron-free supported catalyst and to a method for the production of carbon nanotubes using the iron-free supported catalyst.