A diesel oxidation catalyst article is provided, which includes a substrate carrier having a plurality of channels adapted for gas flow and a catalyst composition positioned to contact an exhaust gas passing through each channel. The catalyst composition includes a platinum (Pt) component and a sulfur (S)-containing component impregnated onto a refractory metal oxide support and is effective to abate hydrocarbon and carbon monoxide, as well as oxidize NO to NO.sub.2 in the exhaust gas. Methods of making and using the catalyst article are also provided, as well as emission treatment systems comprising the catalyst article.

A catalyst for converting carbon oxide into methanol, which is a metal oxide including 3565 parts by weight of Cu, 2050 parts by weight of Zn, 210 parts by weight of Al, and 0.15 parts by weight of Si, wherein the metal oxide further includes In, Ce, or a combination thereof, and the content of In and Ce are independently 0.05 wt %5 wt % based on the total weight of Cu, Zn, Al, and Si in the catalyst. A process of converting carbon oxide into methanol using the above catalyst is also provided.

A catalyst for converting carbon oxide into methanol, which is a metal oxide including 3565 parts by weight of Cu, 2050 parts by weight of Zn, 210 parts by weight of Al, and 0.15 parts by weight of Si, wherein the metal oxide further includes In, Ce, or a combination thereof, and the content of In and Ce are independently 0.05 wt %5 wt % based on the total weight of Cu, Zn, Al, and Si in the catalyst. A process of converting carbon oxide into methanol using the above catalyst is also provided.

An efficient and economical process for H.sub.2 evolution by water splitting, catalyzed by layered oxides that function in UV and visible light.

An efficient and economical process for H.sub.2 evolution by water splitting, catalyzed by layered oxides that function in UV and visible light.

Methods, systems, and compositions related to the recycling and/or recovery of activating materials from activated aluminum are disclosed. In one embodiment, an aqueous solution's composition may be controlled to maintain aluminum ions dissolved in solution during reaction of an activated aluminum. In another embodiment, aluminum hydroxide containing the activating materials may be dissolved into an aqueous solution to isolate the activating materials.

This invention discloses a method for co-production of 1-chloro-3,3,3-trifluoropropene, 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene. This method includes inputting the mixed gases of hydrogen fluoride and 1,1,1,3,3-pentachloropropane together with 1,1,2,3-tetrachloropropene into a first reactor for a reaction to obtain a reaction product; directly inputting the reaction product into a second reactor to perform a reaction in the presence of a catalyst; separating hydrogen chloride from the obtained product; obtaining 1-chloro-3,3,3-trifluoropropene, 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene respectively after water washing, alkaline washing, drying and rectifying. This invention has the advantages of flexible production, simple process, small investment, low energy consumption and high conversion rate.

The invention relates to a method for preparing a material made of silicon and/or germanium nanowires, comprising the steps of: i) placing a source of silicon and/or a source of germanium in contact with a catalyst comprising a binary metal sulfide or a multinary metal sulfide, said metal(s) being selected from among Sn, In, Bi, Sb, Ga, Ti, Cu, and Zn, by means of which silicon and/or germanium nanowires are obtained, ii) optionally recovering the silicon and/or germanium nanowires obtained in step (i); the catalyst and, optionally, the source of silicon and/or the source of germanium being heated before, during and/or after being placed in contact under temperature and pressure conditions that allow the growth of the silicon and/or germanium nanowires.

Disclosed is a preparation method for a molecular sieve-multiple oxide composite integral extrusion type denitration catalyst, belonging to the technical fields of atmosphere pollution control and environment-friendly catalytic materials. The preparation method comprises: constructing an organic structure coating on the surface of a metal ion-exchanged molecular sieves and synchronously adding multiple oxide components, thus obtaining an ion-exchanged molecular sieve-multiple oxide composite denitration catalyst active component; and then mixing, kneading into paste, staling, carrying out integral extrusion forming, drying, and calcining, thus obtaining the integral extrusion type denitration catalyst. The molecular sieve-multiple oxide composite integral extraction type denitration catalyst has a denitration efficiency more than 80% at the temperature ranging from 250 C. to 420 C. in the presence of 10% steam and 500 ppm sulfuric dioxide. According to the present invention, the application field of metal-loaded molecular sieve denitration catalysts is widened, and thus the metal-loaded molecular sieve denitration catalysts can be widely applied to the flue gas denitration of stationary sources.

Disclosed is a preparation method for a molecular sieve-multiple oxide composite integral extrusion type denitration catalyst, belonging to the technical fields of atmosphere pollution control and environment-friendly catalytic materials. The preparation method comprises: constructing an organic structure coating on the surface of a metal ion-exchanged molecular sieves and synchronously adding multiple oxide components, thus obtaining an ion-exchanged molecular sieve-multiple oxide composite denitration catalyst active component; and then mixing, kneading into paste, staling, carrying out integral extrusion forming, drying, and calcining, thus obtaining the integral extrusion type denitration catalyst. The molecular sieve-multiple oxide composite integral extraction type denitration catalyst has a denitration efficiency more than 80% at the temperature ranging from 250 C. to 420 C. in the presence of 10% steam and 500 ppm sulfuric dioxide. According to the present invention, the application field of metal-loaded molecular sieve denitration catalysts is widened, and thus the metal-loaded molecular sieve denitration catalysts can be widely applied to the flue gas denitration of stationary sources.