Disclosed herein are base metal catalyst devices for removing ozone, volatile organic compounds, and other pollutants from an air flow stream. A catalyst device includes a housing, a solid substrate disposed within the housing, and a catalyst layer disposed on the substrate. The catalyst layer includes a first base metal catalyst at a first mass percent, a second base metal catalyst at a second mass percent, and a support material impregnated with at least one of the first base metal catalyst or the second base metal catalyst. The preferred catalyst composition is a combination of manganese oxide and copper oxide.

A method of upcycling polymers to useful hydrocarbon materials. A catalyst with nanoparticles on a substrate selectively docks and cleaves longer hydrocarbon chains over shorter hydrocarbon chains. The nanoparticles exhibit an edge to facet ratio to provide for more interactions with the facets.

A method of upcycling polymers to useful hydrocarbon materials. A catalyst with nanoparticles on a substrate selectively docks and cleaves longer hydrocarbon chains over shorter hydrocarbon chains. The nanoparticles exhibit an edge to facet ratio to provide for more interactions with the facets.

A method to stably produce trifluoroethylene with a high selectivity by reacting 1,1,1,2-tetrafluoroethane with a solid reactant and suppressing the formation of by-products such as polymer carbon is provided. In the method, a material gas containing 1,1,1,2-tetrafluoroethane passes through a layer consisting of a particulate solid reactant having an average particle size of from 1 μm to 5,000 μm to bring the solid reactant and 1,1,1,2-tetrafluoroethane into contact with each other in a state where the layer consisting of the solid reactant is fluidized.

A method to stably produce trifluoroethylene with a high selectivity by reacting 1,1,1,2-tetrafluoroethane with a solid reactant and suppressing the formation of by-products such as polymer carbon is provided. In the method, a material gas containing 1,1,1,2-tetrafluoroethane passes through a layer consisting of a particulate solid reactant having an average particle size of from 1 μm to 5,000 μm to bring the solid reactant and 1,1,1,2-tetrafluoroethane into contact with each other in a state where the layer consisting of the solid reactant is fluidized.

The present invention provides a catalyst comprising a transition metal, an inorganic support, a zeolite, and a layered double hydroxide. Using of the catalyst according to the present invention in an olefin production process exhibits high activity and high selectivity with decreased deactivation rate, therefore longer reaction cycle can be performed and catalyst life is prolonged.

Provided is a method for manufacturing a mesoporous inorganic oxide, which includes preparing a mixture of a metal salt selected from the group consisting of at least one kind of alkali metal-containing compound, at least one kind of alkaline earth metal-containing compound, and any combination thereof and an amorphous inorganic oxide; sintering the mixture of a metal salt and an amorphous inorganic oxide; and removing the metal salt contained in the sintered mixture, and a mesoporous inorganic oxide that is manufactured by the above method and is composed of an aggregate of inorganic oxide particles having a size of from 2 nm to 5 nm.

According to the present invention, it is possible to provide a method for manufacturing a mesoporous inorganic oxide which has a simplified manufacturing process, has a short period of manufacturing time of about 1 day, does not generate secondary environmental contaminants to be environmentally friendly, and enables mass production, and a mesoporous inorganic oxide which has a dramatically decreased particle size and thus has an increased specific surface area and increased active sites.

Provided is a method for manufacturing a mesoporous inorganic oxide, which includes preparing a mixture of a metal salt selected from the group consisting of at least one kind of alkali metal-containing compound, at least one kind of alkaline earth metal-containing compound, and any combination thereof and an amorphous inorganic oxide; sintering the mixture of a metal salt and an amorphous inorganic oxide; and removing the metal salt contained in the sintered mixture, and a mesoporous inorganic oxide that is manufactured by the above method and is composed of an aggregate of inorganic oxide particles having a size of from 2 nm to 5 nm.

According to the present invention, it is possible to provide a method for manufacturing a mesoporous inorganic oxide which has a simplified manufacturing process, has a short period of manufacturing time of about 1 day, does not generate secondary environmental contaminants to be environmentally friendly, and enables mass production, and a mesoporous inorganic oxide which has a dramatically decreased particle size and thus has an increased specific surface area and increased active sites.

The present invention relates to a catalyst system for olefin metathesis, the catalyst system comprising: a) a first system zone substantially comprising a layered double hydroxide; and b) a second system zone comprising a metathesis catalyst.

The present invention relates to a catalyst system for olefin metathesis, the catalyst system comprising: a) a first system zone substantially comprising a layered double hydroxide; and b) a second system zone comprising a metathesis catalyst.