A method of making a supported catalytic species comprising an alloy of at least two metals, comprises the steps of: (i) combining a particulate support material, a solution of a first metal compound, a solution of a second metal compound, and a solution of an alkaline precipitating agent to form a slurry mixture; (ii) agitating the resultant mixture; and (iii) contacting the solids with a reducing agent, wherein the first metal in the first metal compound and the second metal in the second metal compound is each independently selected from the group consisting of gold, palladium, platinum, rhodium, iridium, silver, osmium and ruthenium; and wherein the first metal is not the same as the second metal.

The invention discloses a dinuclear rhodium complex-doped platinum/hollow mesoporous silica sphere composite material, and a preparation method and an application thereof. The preparation method comprises the following steps: preparing hollow mesoporous silica by a selective etching technology, uniformly distributed a precious metal platinum in the channels of the hollow mesoporous silica by using simple impregnation, and mixing the obtained catalyst with dinuclear rhodium complex adsorbed silica gel to obtain the composite material integrating a chromogenic probe with the catalyst. The preparation method is simple, and the chromogenic performance of the dinuclear rhodium complex material and catalysis performance of the catalyst can achieve simultaneous detection and catalyst of CO; and the dinuclear rhodium complex has obvious response to CO, and has chromogenic change in the presence of 50 ppm CO, and the product prepared through the preparation method has excellent CO detection and treatment properties, and highly facilitates industrial application.

The present invention relates to an air refining and purifying sterilization module and an air refining and purifying sterilizer including the same, and more particularly, to an air refining and purifying sterilization module and an air refining and purifying sterilizer including the same with excellent sterilization, purification, deodorization, and ventilation performance with respect to various pollutants generated in smoking rooms including tobacco smoke and carbon monoxide and every living spaces as improved catalyst performance. The present invention provides an air purifying sterilizer module in which the photocatalyst unit is formed of an alloy coated metal foam carried with a photocatalytic material and an air purifying sterilizer including the same in the air purifying sterilizer module including a filter unit, a photocatalyst unit, and an ultraviolet lamp. The air purifying sterilizer module and the air purifying sterilizer including the same of the present invention can be widely used by replacing an air purifying sterilizer and an air purifier in the related art in smoke rooms, office spaces, living spaces such as apartments, hospitals, and medical facilities.

In one embodiment, there is disclosed an apparatus for decontaminating exhaust gasses. The apparatus includes a monolith catalytic substrate having a length and a width. The substrates length separates first and second opposed ends. The first end and second ends each have a one piece retention ring fitted thereon. The apparatus includes a housing having a length separating opposed, spaced apart open first and second ends. The housing has a side wall extending substantially unbroken there between to define a body having an interior space. The monolith catalytic substrate is disposed in said interior space. The housing has a greater length than said monolith catalytic substrate. The substrate is centered in the housing and the housing is swaged at the first and second ends respectively to engage the retention rings and retain the monolith catalytic substrate within the interior space in said housing.

There is disclosed a microporous crystalline material comprising a metal containing chabazite having a crystal size greater than 0.5 microns and a silica-to-alumina ratio (SAR) greater than 15, wherein the metal containing chabazite retains at least 80% of its initial surface area and micropore volume after exposure to temperatures of up to 900? C. in the presence of up to 10 volume percent water vapor for up to 1 hour. Methods of using the disclosed crystalline material, such as in the SCR of NO.sub.x in exhaust gas are also disclosed, as are methods of making such materials.

Disclosed in certain implementations is a catalysis composition that includes a metal catalyst and a support material impregnated with the metal catalyst.

In one aspect, catalyst modules and catalytic reactors are provided which, in some embodiments, mitigate inefficiencies and/or problems associated with fluid stream pressure drop. A catalyst module comprises a layer of structural catalyst bodies arranged in a pleated format, the structural catalyst bodies forming pleat inlet faces and pleat outlet faces, wherein fluid flow channels defined by inner partition walls of the structural catalyst bodies extend from the pleat inlet faces to the pleat outlet faces. The pleat inlet faces form an angle () with an inlet face of the module.

Disclosed in certain implementations is a catalysis composition that includes a metal catalyst and a support material impregnated with the metal catalyst.

The invention provides an automotive catalyst composite effective for abating carbon monoxide, hydrocarbons, and NOx emission in an automotive exhaust gas stream, which includes a catalytic material on a carrier, the catalytic material including a plurality of core-shell support particles comprising a core and a shell surrounding the core, the core including a plurality of particles having a primary particle size distribution d.sub.90 of up to about 5 ?m, wherein the core particles comprise particles of one or more metal oxides, the shell including nanoparticles of one or more metal oxides, wherein the nanoparticles have a primary particle size distribution d90 in the range of about 5 nm to about 1000 nm (1 ?m), and one or more platinum group metals (PGMs) on the core-shell support. The invention also provides an exhaust gas treatment system and related method of treating exhaust gas utilizing the catalyst composite.

The present disclosure provides for ambient temperature catalyst compositions for trace contaminant control (e.g., for environmental control assemblies for space systems) and related methods of fabrication and use. More particularly, the present disclosure provides for ambient temperature catalytic oxidation (ATCO) catalyst compositions for trace contaminant control with improvements to carbon monoxide and hydrogen capture, and related methods of fabrication and use.