123results about "Oxy/sulfo carbides" patented technology

The invention relates to a method for producing dimeric and / or trimeric silicon compounds, in particular silicon halogen compounds. The claimed method is also suitable for producing corresponding germanium compounds. The invention also relates to a device for carrying out said method to the use of the produced silicon compounds.

Compositions including oxycarbide-based nanorods and / or carbide-based nanorods and / or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including oxycarbide-based nanorods and / or carbide based nanorods and / or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are also provided. The compositions and rigid porous structures of the invention can be used either as catalyst and / or catalyst supports in fluid phase catalytic chemical reactions. Processes for making supported catalyst for selected fluid phase catalytic reactions are also provided. The fluid phase catalytic reactions catalyzed include hydrogenation, hydrodesulfurisation, hydrodenitrogenation, hydrodemetallisation, hydrodeoxigenation, hydrodearomatization, dehydrogenation, hydrogenolysis, isomerization, alkylation, dealkylation and transalkylation.

Compositions including carbide-containing nanorods and / or oxycarbide-containing nanorods and / or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including oxycarbide-containing nanorods and / or carbide containing nanorods and / or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are also provided. The compositions and rigid porous structures of the invention can be used either as catalyst and / or catalyst supports in fluid phase catalytic chemical reactions. Processes for making supported catalyst for selected fluid phase catalytic reactions are also provided.

The invention discloses a preparation method of a sulfonated two-dimensional titanium carbide nanosheet. The preparation method comprises the following steps of preparing two-dimensional titanium carbide by utilizing aluminum atomic layers in hydrofluoric acid chemical stripping layer-shaped titanium aluminum carbide; preparing aminobenzenesulfonic acid diazonium salt; performing sulfonation reaction of the two-dimensional titanium carbide and the aminobenzenesulfonic acid diazonium salt, so as to prepare the sulfonated two-dimensional titanium carbide nanosheet. The sulfonated two-dimensional titanium carbide nano material prepared by adopting the preparation method has good dispersibility in water and common organic solvents, and the single-layer or few-layer sulfonated two-dimensional titanium carbide nanosheet with large size and high quality can be obtained after ultrasonic treatment is performed on dispersion liquid. The preparation method has the characteristics of low production cost, easiness in obtaining raw materials, simplicity and controllability in a preparation process and the like.

The invention discloses (Ti,M)C nano solid solution powder and a preparation method thereof. The (Ti,M)C nano solid solution powder is prepared from the following components in percentage by weight: 35 to 79.9 percent of Ti, 0.1 to 35 percent of M and the balance of C, wherein the M is at least one of W, Mo, Cr, Ta, V and Nb. The preparation method comprises the following steps of mixing Ti powder, carbon black powder and a powdery raw material of the component M, carrying out high-energy ball milling, drying a mixture obtained after the ball milling, then putting the dried mixture into a crucible, adding a halogenating agent, afterwards, in the protection condition of an Ar gas, carrying out heat preservation for 2h to 4h at 900 to 1,000 DEG C, so as to obtain halogenating agent mixed (Ti,M)C nano solid solution powder, finally, dissolving the halogenating agent by using distilled water, centrifuging and drying, so that the (Ti,M)C nano solid solution powder is subsequently obtained.The method provided by the invention can be used for completing the carbonization and solid-solution reactions of (Ti,M)C at 900 to 1,000 DEG C; the prepared (Ti,M)C solid solution powder has the characteristic of a single-phase component and has the average particle size which is less than 100nm; the powder is high in purity and the content of the C is easy to precisely regulate and control.

The present disclosure provides a series of new and improved porous polyamide aerogels derived from multifunctional aromatics that combine the high mechanical strength of aramids with the pore structure of aerogels. The polyamide aerogels have a hyperbranched structure, relatively low density, high porosity and may be derived from functionalized monomers having more aromatic groups than functional groups. The present disclosure also provides a new method for producing the porous polyamide aerogels by polymerizing an aromatic multifunctional carboxylic acid or a ferrocene multifunctional carboxylic acid with a polyfunctional aromatic isocyanate at moderate reaction conditions followed by drying with liquid CO2. Also disclosed are various methods of use of these polyamide aerogels in a variety of applications.

The present invention belongs to the field of inorganic nonmetallic materials, and relates to a synthetic method of high-purity ultrafine ZrC-SiC composite powders. The synthetic method comprises the following steps: taking only zirconium silicate or zirconium silicate added with one or both of zirconium oxide or colloidal silica as a zirconium source and a silicon source material, taking sucrose or glucose as a carbon source material, and taking acrylamide monomer and a methylene-bisacrylamide cross-linking agent as a gel material to prepare the high purity ultrafine ZrC-SiC composite powders. The ZrC-SiC composite powders synthesized by the synthetic method provided by the present invention are mixed very uniformly and are quite high in purity, and the purity is greater than or equal to 99%, and the particle size d is less than or equal to 50 [mu]m. An aqueous pulp containing acrylamide monomer and the methylene bisacrylamide cross-linking agent is subjected to in-situ gel curing, C can closely coat the surfaces of solid phase powder particles very uniformly, so that segregation of raw materials in dehydration and reaction processes is avoided, and carbothermal reduction synthesis reaction can be carried out fully.

The invention discloses a SiOC composite electrode material. The present invention relates to a SiOC composite material in microparticulate form, characterized in that the microparticles are formed, in whole or in part, of an amorphous SiOC matrix with Si ranging from 20 wt% to 60 wt%, O from 20 wt% to 40 wt% and C from 10 wt% to 50 wt%, based on the total weight of the SiOC matrix, wherein amorphous or crystallized silicon particles are embedded within said SiOC matrix and wherein the microparticles are of core / coating structure with a core formed of said amorphous SiOC matrix and coated with at least one amorphous carbon layer; and to a method for producing such SiOC composite material. It also relates to an electrode active material, an electrode and a battery, especially a lithium-ion battery, including the aforementioned SiOC composite material.

A catalytic composition from earth-abundant transition metal salts and biomass is disclosed. A calcined catalytic composition formed from soybean powder and ammonium molybdate is specifically exemplified herein. Methods for making the catalytic composition are disclosed as are electrodes for hydrogen evolution reactions comprising the catalytic composition.

Compositions including modified carbide-containing nanorods and / or modified oxycarbide-containing nanorods and / or modified carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including modified oxycarbide-containing nanorods and / or modified carbide containing nanorods and / or modified carbon nanotubes bearing modified carbides and oxycarbides and methods of making the same are also provided. The compositions and rigid porous structures of the invention can be used either as catalyst and / or catalyst supports in fluid phase catalytic chemical reactions. Processes for making supported catalyst for selected fluid phase catalytic reactions are also provided.