B01J23/30

ODH CATALYST FORMULATIONS

The oxidative dehydrogenation of ethane comprises contacting a mixture of ethane and oxygen in an ODH reactor with an ODH catalyst under conditions that promote oxidation of ethane into ethylene. Conditions within the reactor are controlled by the operator and include, but are not limited to, parameters such as 5 temperature, pressure, and flow rate. Conditions will vary and can be optimized for a specific catalyst, or whether an inert diluent is used in the mixing of the reactants. Disclosed herein is a catalyst consisting of: Mo.sub.0-1W.sub.0.3-1V.sub.0.2-0.4Te.sub.0.06-0.10Fe.sub.0.0-0.10Nb.sub.0.08-0.18O.sub.X where X is determined by the valance of the metals.

Transition metal support for catalyst electrode and method of manufacturing same

The present invention relates to a transition metal nitride support, a method of manufacturing the same, a metal catalyst and a platinum-alloy catalyst including the transition metal nitride support, and manufacturing methods thereof. The manufactured transition metal support prevents corrosion of the support and aggregation of the platinum catalyst, thereby exhibiting high oxygen reduction catalytic activity. Also, strong metal-support interaction (SMSI) can be stabilized, thus improving the durability of the catalyst. The transition metal support includes large pores uniformly distributed therein, thereby increasing the amount of the catalyst supported and minimizing mass-transfer resistance in a membrane- electrode assembly, increasing the performance of a polymer electrolyte membrane fuel cell. The metal catalyst includes platinum particles loaded on the transition metal nitride support, thus exhibiting superior durability and activity. The manufactured platinum-alloy catalyst decreases the use of expensive platinum, thus generating economic benefits and improving the inherent oxygen reduction performance.

Transition metal support for catalyst electrode and method of manufacturing same

The present invention relates to a transition metal nitride support, a method of manufacturing the same, a metal catalyst and a platinum-alloy catalyst including the transition metal nitride support, and manufacturing methods thereof. The manufactured transition metal support prevents corrosion of the support and aggregation of the platinum catalyst, thereby exhibiting high oxygen reduction catalytic activity. Also, strong metal-support interaction (SMSI) can be stabilized, thus improving the durability of the catalyst. The transition metal support includes large pores uniformly distributed therein, thereby increasing the amount of the catalyst supported and minimizing mass-transfer resistance in a membrane- electrode assembly, increasing the performance of a polymer electrolyte membrane fuel cell. The metal catalyst includes platinum particles loaded on the transition metal nitride support, thus exhibiting superior durability and activity. The manufactured platinum-alloy catalyst decreases the use of expensive platinum, thus generating economic benefits and improving the inherent oxygen reduction performance.

Graphene pellicle lithographic apparatus

A catalyst including: a first layer including a transition metal; a base layer; and an interlayer, wherein the interlayer is disposed between the base layer and the first layer is disclosed. Also disclosed are methods for preparing a catalyst as well as for synthesizing graphene, a pellicle produced using the catalyst or methods disclosed herein, as well as a lithography apparatus including such a pellicle.

SELECTIVE CATALYTIC REDUCTION CATALYST COMPOSITION, CATALYTIC ARTICLE COMPRISING THE SAME AND METHOD FOR PREPARING THE CATAYTIC ARTICLE
20220331782 · 2022-10-20 ·

The present invention relates to a catalyst composition comprising a support, catalytically active species comprising a vanadium species, an antimony species and a tungsten species, and optionally, at least one further species selected from the group consisting of silicon species, aluminum species, zirconium species, titanium species, and cerium species; a catalytic article comprising the same, a method for preparing the catalytic article, and use of the catalyst composition or the catalytic article for selective catalytic reduction of nitrogen oxides in exhaust gases.

SELECTIVE CATALYTIC REDUCTION CATALYST COMPOSITION, CATALYTIC ARTICLE COMPRISING THE SAME AND METHOD FOR PREPARING THE CATAYTIC ARTICLE
20220331782 · 2022-10-20 ·

The present invention relates to a catalyst composition comprising a support, catalytically active species comprising a vanadium species, an antimony species and a tungsten species, and optionally, at least one further species selected from the group consisting of silicon species, aluminum species, zirconium species, titanium species, and cerium species; a catalytic article comprising the same, a method for preparing the catalytic article, and use of the catalyst composition or the catalytic article for selective catalytic reduction of nitrogen oxides in exhaust gases.

CATALYSTS FOR OXIDATIVE COUPLING OF METHANE

Catalysts, catalytic materials having catalysts present on supports and catalytic methods are provided. The catalysts, catalytic material and methods are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane.

CATALYSTS FOR OXIDATIVE COUPLING OF METHANE

Catalysts, catalytic materials having catalysts present on supports and catalytic methods are provided. The catalysts, catalytic material and methods are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane.

PROCESS FOR SELECTIVE DEEP HYDRODESULFURIZATION OF A HYDROCARBON FEEDSTOCK USING AN UNSUPPORTED NANOCATALYST MADE BY LASER PYROLYSIS

A process for producing an unsupported molybdenum sulfide nanocatalyst comprising atomizing a molybdenum oxide solution to form a molybdenum oxide aerosol, pyrolyzing the molybdenum oxide aerosol with a laser beam to form the unsupported molybdenum-based nanocatalyst, and pre-sulfiding at least a portion of the unsupported molybdenum-based nanocatalyst to form an unsupported molybdenum sulfide nanocatalyst, wherein the unsupported molybdenum-based nanocatalyst, the unsupported molybdenum sulfide catalyst or both are in the form of nanoparticles with a diameter of 1-10 nm and in a distorted rutile crystalline structure. A method of selective deep hydrodesulfurization whereby a hydrocarbon feedstock having at least one sulfur-containing component and at least one hydrocarbon is contacted with the unsupported molybdenum sulfide nanocatalyst.

SYNTHETIC METHODS FOR MAKING CARBOXYLIC ACIDS, ESTERS AND LACTONES

The present disclosure pertains to a new synthetic method for the preparation of 3,6-dimethylhexahydrobenzofuran-2-one, a derivative of mint lactone, and an important organoleptic compound which finds use in the flavor and fragrance industries. Applicants' novel synthetic route is also applicable to other alkene compounds.