111 results about "Osmium" patented technology

The invention provides a multi-component platinum-bismuth-based intermetallic ordered nanosheet as well as a preparation method and application thereof, and relates to the technical field of multi-metal alloy catalysts. The multi-component platinum-bismuth-based intermetallic ordered nanosheet provided by the invention comprises a platinum element, a bismuth element and auxiliary metal elements, the auxiliary elements comprise 1-4 of an iridium element, a ruthenium element, an osmium element, a rhodium element, a tin element and a lead element, and the multi-component platinum-bismuth-based intermetallic ordered nanosheet has an intermetallic ordered structure and a two-dimensional nanosheet morphology. The multi-component platinum-bismuth-based intermetallic ordered nanosheet provided by the invention is stable in structure, is applied to a fuel cell as a catalyst, and has excellent electro-catalytic performance, including formic acid oxidation electro-catalytic performance and alcohol oxidation electro-catalytic performance. The invention provides the preparation method of the multi-component platinum-bismuth-based intermetallic ordered nanosheet, the preparation condition is mild, the operation is simple, and the problems of catalyst agglomeration and the like caused by conversion from high-temperature calcination to an ordered phase are effectively avoided.

A light-emitting device including an organometallic compound having a metal such as is platinum (Pt), palladium (Pd), copper (Cu), silver (Ag), gold (Au), rhodium (Rh), ruthenium (Ru), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), or thulium (Tm) is provided. The light-emitting device may include a first electrode, a second electrode facing the first electrode, an interlayer between the first electrode and the second electrode and comprising an emission layer. The light-emitting device may be included in an electronic apparatus.

Sensors containing one or more metal oxides as the sensor material are used for detecting pathogen-derived VOCs, e.g., VOCs emitting from infectious wounds. The metal oxides may contain one or more metal elements selected from aluminum, antimony, bismuth, boron, cerium, chromium, cobalt, copper, gold, indium, iridium, iron, lanthanum, lead, manganese, molybdenum, nickel, niobium, osmium, palladium, platinum, rhodium, ruthenium, selenium, silicon, silver, tantalum, tellurium, terbium, tin, titanium, tungsten, vanadium, ytterbium, yttrium, zinc, and zirconium. A sensor device may have one or more sensors, which detects and records a variety of VOCs that are indicative of existence of pathogens, and the pathogens are associated with dieses and / or infections.

A sensor comprising one or more metal oxides as sensor material is used to detect pathogen-derived VOCs, such as those released from an infected wound. The metal oxides can comprise one or more metal elements selected from aluminum, antimony, bismuth, boron, cerium, chromium, cobalt, copper, gold, indium, iridium, iron, lanthanum, lead, manganese, molybdenum, nickel, niobium, osmium, palladium, platinum, rhodium, ruthenium, selenium, silicon, silver, tantalum, tellurium, terbium, tin, titanium, tungsten, vanadium, ytterbium, yttrium, zinc, and zirconium. The sensor device can have one or more sensors that detect and record various VOCs indicative of the presence of pathogens, which are associated with mortality and / or infection.

A method may include operating a dehydrogenation process whereby a hydrocarbon-containing feed is converted to light olefins, wherein the dehydrogenation process utilizes a fluidized process catalyst that circulates between a reactor and a combustor. The method may comprise withdrawing the process catalyst from the dehydrogenation process, modifying the process catalyst to form a modified catalyst, and adding the modified catalyst back to the dehydrogenation process. The process catalyst may include from 0.1 wt. % to 10 wt. % of one or more metals chosen from gallium, indium, thallium, or combinations thereof, from 1 ppmw to 1000 ppmw of one or more metals chosen from platinum, palladium, rhodium, iridium, ruthenium, osmium, or combinations thereof, and at least 85 wt. % support. Modifying the process catalyst may include adding one or more of manganese, iron, chromium, or vanadium.

A method may include contacting a hydrocarbon-containing feed with a catalyst in a reactor to form an olefin-containing effluent, then at least partially separating the olefin-containing effluent from the catalyst. Passing the catalyst to a combustor and heating the catalyst by combusting a supplemental fuel. The supplemental fuel includes methane in an amount greater than or equal to 1 mol. %. Passing the catalyst from the combustor to the reactor, such that at least a portion of the catalyst continuously cycles between the reactor and the combustor. The catalyst includes from 0.1 wt. % to 10 wt. % of one or more metals chosen from gallium, indium, thallium or combinations thereof, from 5 ppmw to 1000 ppmw of one or more metals chosen from platinum, palladium, rhodium, iridium, ruthenium, osmium, or combinations thereof, from 100 ppmw to 30000 ppmw of chromium, and at least 85 wt. % support.

The invention provides an ammonia gas synthesis method based on an osmium-platinum catalyst and nitrogen oxide, and solves the technical problem of high production cost caused by high price of a catalyst used for hydrogen reduction of nitrogen oxide in the prior art. The method comprises the following steps: respectively preparing NO, H2 and inert gas according to preset requirements; weighing an osmium-platinum catalyst, and adding the osmium-platinum catalyst into the tubular reactor containing the quartz wool; h2 is introduced into the tubular reactor, the reactor is heated to 200-400 DEG C, the osmium-platinum catalyst is pretreated at the temperature, and then the osmium-platinum catalyst continues to be cooled to the room temperature under purging of H2; meanwhile, NO, H2 and inert gas are introduced into the reactor to form mixed gas, the temperature in the tubular reactor is raised to a preset temperature, then heat preservation is conducted, the mixed gas reacts under the action of the osmium-platinum catalyst, and then ammonia gas can be synthesized. The method has lower energy consumption and higher yield, and the used catalyst is lower in cost and better in performance.

The invention discloses a complex with metal located at the center of a rotaxene plane as well as a preparation method and application of the complex, and particularly relates to five types of novel complexes with metal located at the center of the rotaxene plane, in particular to five types of novel complexes with osmium located at the center of the rotaxene plane: [55753] osmium [15] rotaxene, [55735] osmium [15] rotaxene, [55663] osmium [15] rotaxene, [55636] osmium [15] rotaxene and [5555] osmium [15] rotaxene. The [55753] osmium [15] rotaxene 1a-1c can be prepared by respectively reacting P4a, P4b and P4c which are used as raw materials; the [55753] osmium [15] rotaxene 1d-1f can be prepared by a reaction of 1a-1c; [55735] osmium [15] rotaxene 2a-2c, [55663] osmium [15] rotaxene 3a and [55636] osmium [15] rotaxene 4a can be prepared from 1d-1f through different reactions; the [55555] osmium [15] rotaxene 5a-5c can be prepared by a reaction of 2a-2c; the [55555] osmium [15] rotaxene 5d-5f can be prepared by a reaction of 5a-5c; 5 g of [55555] osmium [15] rotaxene, 5 h, 5 i and 5 j can be prepared from 5 d through different reactions. The novel complex with the metal located in the plane center of the rotaxene can be used for catalyzing benzylamine oxidative coupling reaction to prepare imine, the reaction can be carried out in a room-temperature air atmosphere, the amount of the catalyst can be as low as 1 mol%, and the highest yield can reach 85% after 24 hours.

A grease composition that includes at least an oil-based medium, a thickener, and a fullerene-like nano-structure. The fullerene-like nano-structure includes a plurality of layers each comprised of a metal chalcogenide composition has a molecular formula of MX2, where M is a metallic element selected from the group consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), niobium (Nb), molybdenum (Mo), technetium (Tc), ruthenium (Ru), rhodium (Rh), palladium (Pd), silver (Ag), cadmium (Cd), hafnium (Hf), tantalum (Ta), tungsten (W), rhenium (Re), osmium (Os), iridium (Ir), platinum (Pt), gold (Au), mercury (Hg) and combinations thereof, and X is a chalcogen element selected from the group consisting of sulfur (S), selenium (Se), tellurium (Te), oxygen (O) and combinations thereof.

A catalyst suitable for dehydrogenation of hydrocarbons may include from 0.0005 wt.% to 0.1 wt.% of platinum, palladium, rhodium, iridium, ruthenium, osmium, or combinations thereof; from 0.1 wt.% to 10 wt.% of gallium, indium, thallium, or combinations thereof; from 0.1 wt.% to 5 wt.% of lanthanum, yttrium, or zirconium; at least 85 wt.% support, and from 0 wt.% to 0.001 wt.% cerium.

Disclosed is an eye drop composition for treating and preventing eye diseases. The eye drop composition for treating and preventing eye diseases contains, as active ingredients, minerals that have lost at least one electron, selected from germanium (Ge), silver (Ag), iridium (Ir), nickel (Ni), palladium (Pd), tantalum (Ta), antimony (Sb), zinc (Zn), indium (In), boron (B), astatine (At), thallium (Tl), magnesium carbonate (MgCO3), tin (Sn), iron (Fe), calcium sulfide (CaS), molybdenum (Mo), chromium (Cr), sodium (Na), tungsten (W), gallium (Ga), strontium (Sr), potassium (K), beryllium (Be), barium (Ba), magnesium (Mg), scandium (Sc), yttrium (Y), calcium (Ca), titanium (Ti), vanadium (V), hafnium (Hf), bromine (Br), zirconium (Zr), copper (Cu), manganese (Mn), rubidium (Rb), technetium (Tc), platinum (Pt), niobium (Nb), gold (Au), phosphate (Pi), rhenium (Re), ruthenium (Ru), cobalt (Co), zinc oxide (ZnO), aluminum (Al), selenium (Se), bismuth (Bi), phosphorus (P), rhodium (Rh), silicon (Si), iodine (I), tellurium (Te), sulfur (S), lithium (Li), osmium (Os), magnesium hydroxide (Mg(OH)2), and cesium (Cs), wherein the minerals are at least five types of minerals. The eye drop composition is very safe for the human body, and thus can be very effectively used as an eye drop agent for treating and preventing eye diseases, as well as for completely curing cataracts.

The invention relates to the field of electron tubes, and discloses a low-evaporation three-layer film cathode assembly for a space traveling wave tube, which comprises a tungsten substrate positioned on a substrate; the first layer of rhenium film and the rhenium film cover the tungsten substrate; the carbon nanotube composite material layer is deposited on the rhenium film; the second osmium-tungsten film is deposited on the carbon nanotube layer; the third osmium-ruthenium film is deposited on the osmium-tungsten film; wherein the thicknesses of the rhenium film, the carbon nanotube layer, the osmium-tungsten film and the osmium-ruthenium film are respectively controlled to be 0.5-2 mu m, 10-50 nm, 50-200 nm and 20-100 nm, and the carbon nanotube composite material layer is obtained by growing on the rhenium film through chemical vapor deposition. By adopting the osmium-tungsten and osmium-ruthenium films with high crystallinity and the optimized carbon nanotube composite material layer, the electron emission efficiency of the cathode assembly is remarkably improved, so that the energy required by electron emission is reduced, and the electron output quantity under the same working condition is increased.

There is provided a method for decreasing leakage of matter from an object to a surrounding, said object being coated with a coating at least partially applied on the object, said coating comprising an at least partially covering layer comprising silver, said object optionally comprising area(s) without said layer, said coating comprising metal particles applied on the layer and optionally on areas without said layer, said metal particles comprising palladium and at least one metal selected from the group consisting of gold, ruthenium, rhodium, osmium, iridium, niobium, neodymium and platinum and wherein the amount of the metal particles is in the interval 0.01-8 μg / cm . Advantages include that leakage of matter such as latex allergens of metal ions can be reduced while the coating is both biocompatible and antimicrobial. Further, the blood clotting can be reduced.

An anode (1) for an electrochemical system, in particular an alkali metal secondary battery, comprises a current collector (2) and a nucleation layer (3) located on the current collector (2). On the nucleation layer (3) is an artificial SEI layer (4) which has at least one ta-C layer containing at least one dopant selected from the group of dopant elements comprising hydrogen, silicon, nitrogen, oxygen, silver, tin, zinc, antimony, lead, gold, platinum, bismuth, magnesium, potassium, sodium, calcium, nickel, aluminum, gallium, indium, boron, germanium, tellurium, ruthenium and osmium, wherein the total content of dopant elements is at least 0.1 atomic% and not more than 20 atomic%.

The application discloses a CT cathode tube cathode surface coating and a preparation method thereof. The coating is prepared by improving a magnetron sputtering process, using iridium (Ir) and osmium (Os) as metal targets, and depositing a metal coating with a thickness of 10-20 microns on a molybdenum base. The prepared metal coating has a bonding force to the base which can exceed 100 N, and the coating is dense and has good uniformity, and can be used as a cathode for exciting electrons on the surface of a cathode tube in a CT X-ray tube.

The application discloses application of a titanium carbide loaded osmium metal hydrogen evolution and deuterium evolution catalyst in water electrolysis separation of hydrogen isotopes, the carrier of the hydrogen evolution and deuterium evolution catalyst is titanium carbide, the active component is osmium metal loaded on the carrier, and the loading amount of the osmium metal is 7-15% of the mass of the carrier. The hydrogen isotope separation efficiency is improved by improving the composition and structure of the hydrogen evolution and deuterium evolution catalyst. The osmium metal is loaded on the titanium carbide base, the hydrogen evolution selectivity is improved and the energy consumption is reduced through strong mutual action of the metal-carrier.

The invention discloses an application of a titanium carbide loaded osmium metal hydrogen evolution and deuterium evolution catalyst in water electrolysis separation of hydrogen isotopes, a carrier of the hydrogen evolution and deuterium evolution catalyst is titanium carbide, an active component is osmium metal loaded on the carrier, and the loading amount of the osmium metal is 7-15% of the mass of the carrier. The hydrogen isotope separation efficiency is improved by improving the composition and the structure of the hydrogen and deuterium evolution catalyst. Osmium metal is loaded on a titanium carbide substrate, and hydrogen evolution selectivity is improved and energy consumption is reduced through strong interaction of metal and a carrier.

The invention relates to the technical field of osmic acid solution preparation, in particular to an osmic acid solution preparation device and a use method thereof, and solves the technical problems that in the prior art, when a highly toxic osmic acid ampoule bottle is manually treated, the exposure risk of an operator is high, and the dissolution speed of osmic acid crystals is low when the ampoule bottle is directly put into a ground bottle. The invention discloses an osmic acid solution preparation device and a use method thereof. The osmic acid solution preparation device comprises a glass shell, and a moving overturning and clamping assembly capable of clamping and automatically overturning an ampoule bottle, a bottle opening mechanism for breaking off the head of the ampoule bottle, a glass gas outlet pipe system for blowing dry gas into the bottle to transfer crystals and a cover closing mechanism for automatically closing a cover of a receiving bottle are arranged in the glass shell. The full-process automatic sealing operation of transferring the ampoule bottle filled with the osmic acid crystal from bottle opening, overturning and crystal purging to automatic cover closing of the ground bottle is realized, so that an operator is completely isolated from the highly toxic osmic acid crystal and steam thereof in the whole preparation process.

The disclosure relates to a catalyst suitable for electrochemical reduction reactions of one or more carbon oxides, comprising a nitride-doped multi-metallic material comprising a primary metal being copper and one or more secondary metals selected from silver, gold, platinum, palladium, ruthenium, iridium, osmium, and any mixture thereof, wherein the nitride-doped multi-metallic material comprises, as determined by XRD, copper, copper nitride and copper-Me alloy wherein Me is one of the secondary metals and to a gas diffusion electrode suitable for electrolysis of one or more carbon oxides comprising such a catalyst.

The invention relates to a novel functional material for X-ray protection, in particular to a liquid metal flexible shielding material and a preparation method and application thereof. The material comprises liquid metal and solid metal, the liquid metal serves as a solvent to be filled in gaps of the solid metal, the liquid metal is gallium, gallium indium, gallium indium tin, gallium indium tin zinc or mercury, and the solid metal is selected from one or more of indium, tin, gold, platinum, iridium, zirconium, niobium, molybdenum, ruthenium, osmium, rhenium, rhodium, tungsten, antimony, palladium, tantalum, hafnium, lutetium, lead, ytterbium, thulium, bismuth, silver, erbium, holmium, dysprosium, terbium, gadolinium, samarium, neodymium, lanthanum, praseodymium, cerium and europium. On the basis of compounding of the liquid metal solvent and the solid metal solute based on the liquid metal combinatology, the liquid metal and the solid metal are jointly used for protecting X-ray radiation, the comprehensive performance of X-ray protection is improved, and meanwhile the variety and number range of selectable metal elements is widened.

A method can include contacting a hydrocarbon-containing feed with a catalyst in a reactor to form an olefin-containing effluent, and then separating the olefin-containing effluent at least partially from the catalyst. The catalyst is passed to a combustor and heated by combusting a supplemental fuel. The supplemental fuel comprises methane in an amount greater than or equal to 1 mol%. The catalyst is passed from the combustor to the reactor such that at least a portion of the catalyst is continuously circulated between the reactor and the combustor. The catalyst comprises from 0.1% to 10% by weight of one or more metals selected from gallium, indium, thallium, or a combination thereof, from 5 ppmw to 1000 ppmw of one or more metals selected from platinum, palladium, rhodium, iridium, ruthenium, osmium, or a combination thereof, from 100 ppmw to 30000 ppmw of iron, and at least 85% by weight of a support.

The invention discloses a method for generating citral through continuous chemical combination based on a micro-channel reactor. According to the method disclosed by the invention, efficient continuous synthesis from acetal to citral is realized in the micro-channel reactor by utilizing the superfine modified metal supported catalyst. The cracking reaction and the two-step rearrangement reaction are carried out in a micro-channel reactor. Metal elements in the superfine modified metal catalyst comprise one or more of common metals or transition metals such as iron, sodium, potassium, aluminum, magnesium, copper, zinc, titanium, gold, platinum, palladium, nickel, rhodium, osmium, ruthenium, vanadium, cobalt, chromium, molybdenum and the like, the particle size is not higher than 0.1 mu m, and a carrier is a nanoscale material. According to the method disclosed by the invention, the reaction time and procedures of the existing process can be greatly shortened, a complex multi-step process is reduced into a continuous reaction in one reactor, and a large amount of high-purity citral can be rapidly obtained.

Provided is a method for producing a fluorene compound (a fluorene diol compound having a cyclohexane structure) with excellent yield and purity. A method for producing a fluorene compound, comprising a hydrogenation step of hydrogenating a fluorene compound represented by the following formula (1) in the presence of a catalyst and a solvent to obtain a fluorene compound represented by the following formula (2), the catalyst being at least one metal catalyst selected from the group consisting of ruthenium, palladium, rhodium, osmium, iridium, platinum, and nickel, and the solvent being at least one selected from the group consisting of an ether-based solvent and an ester-based solvent. [In formulas (1) and (2), each of m independently represents an integer of 0 or 1, and each of n independently represents an integer of 0 to 6.]

A cemented carbide comprising a plurality of tungsten carbide particles and a binder phase, wherein the cemented carbide comprises a total of 80% by volume or more of the tungsten carbide particles and the binder phase, the cemented carbide comprises 0.1 vol % or more and 20 vol % or less of the binder phase, the cemented carbide comprises at least one first element selected from the group consisting of boron, aluminum, silicon, iron, nickel, germanium, ruthenium, rhenium, osmium, iridium, and platinum, the cemented carbide comprises a total of 0.01 atomic % or more and 10 atomic % or less of the first element, the binder phase comprises 50% by mass or more of cobalt, the first element is segregated in a first interface region between the tungsten carbide particles adjacent to each other, and the first element is present at a C site of tungsten carbide in the first interface region.

The present invention relates to a method of producing adipic acid, including a step (hydrogenation step) of reacting 3-hydroxyadipic acid-3,6-lactone with hydrogen in an aqueous solvent in a presence of a hydrogenation catalyst. The hydrogenation catalyst preferably includes one kind or two or more kinds of transition metal elements selected from the group consisting of palladium, platinum, ruthenium, rhodium, rhenium, nickel, cobalt, iron, iridium, osmium, copper, and chromium.

The method may include operating a dehydrogenation process in which a hydrocarbon-containing feed is converted to light olefins, and the dehydrogenation process utilizes a fluid process catalyst that circulates between a reactor and a combustor. The method may include recovering the process catalyst from the dehydrogenation process, reforming the process catalyst to form a reformed catalyst, and returning and adding the reformed catalyst to the dehydrogenation process. The process catalyst includes at least one metal selected from 0.1 wt% to 10 wt% of gallium, indium, thallium, or a combination thereof, at least one metal selected from 1 ppmw to 1000 ppmw of platinum, palladium, rhodium, iridium, ruthenium, osmium, or a combination thereof, and at least 85 wt% of a carrier. Reforming the process catalyst may include adding one or more of manganese, iron, chromium, or vanadium.

A membrane-catalyst layer structure is provided that can maintain good power generation performance or good electrolysis performance for a long time, respectively. A membrane-catalyst layer structure is provided in which a first catalyst layer and a second catalyst layer are sandwiched opposite each other by a membrane comprising at least a polymer electrolyte membrane. The first and second catalyst layers comprise platinum and / or iridium as a first metal, and the first and / or second catalyst layers further comprise at least one element selected from gold, silver, copper, nickel, palladium, cobalt, rhodium, iron, ruthenium, and osmium as a second metal. The membrane comprises a compound N having a nitrogen-containing heterocycle.

A superabrasive compact and a method of making the superabrasive compact are disclosed. A superabrasive compact may comprise a diamond body. The diamond body comprises a first volume of diamond having a plurality of toughening agents dispersed in the diamond matrix constituted with diamond grains. The toughening agents have sizes ranging from about 100 nanometers to about 500 micrometers. The toughening agents have volume ratio of in the diamond body ranging from about 0.5% to about 40%. The toughening agents are at least one of tungsten, tantalum, molybdenum, niobium, iron, chromium, zirconium, titanium, platinum, iridium, hafnium, osmium, ruthenium, rhodium, vanadium, alloys, carbides / nitrides, metal oxides or ceramics containing thereof.

Water containing less than 60 Hz of minerals is disclosed. The water containing less than 60 Hz of minerals contains, as active ingredients, 0.04-34 parts by weight of minerals from which at least one electron has been removed, among germanium (Ge), silver (Ag), iridium (Ir), nickel (Ni), palladium (Pd), tantalum (Ta), antimony (Sb), zinc (Zn), indium (In), boron (B), astatine (At), thallium (Tl), magnesium carbonate (MgCO3), tin (Sn), iron (Fe), calcium sulfide (CaS), molybdenum (Mo), chromium (Cr), sodium (Na), tungsten (W), gallium (Ga), strontium (Sr), potassium (K), beryllium (Be), barium (Ba), magnesium (Mg), scandium (Sc), yttrium (Y), calcium (Ca), titanium (Ti), vanadium (V), hafnium (Hf), bromine (Br), zirconium (Zr), copper (Cu), manganese (Mn), rubidium (Rb), technetium (Tc), platinum (Pt), niobium (Nb), gold (Au), phosphate (Pi), rhenium (Re), ruthenium (Ru), cobalt (Co), zinc oxide (ZnO), aluminum (Al), selenium (Se), bismuth (Bi), phosphorus (P), rhodium (Rh), silicon (Si), iodine (I), tellurium (Te), sulfur (S), lithium (Li), osmium (Os), magnesium hydroxide (Mg(OH)2), and cesium (Cs), mixed with 100 parts by weight of water, wherein there are at least 5 types of minerals.

The invention relates to a multilayer interference pigment (1) comprising in succession: a metal core (2) in the form of flakes, said metal core (2) comprising a material selected from the group consisting of gold, silver, palladium, rhodium, ruthenium, platinum, osmium, iridium and alloys thereof; a first layer (3) of transparent dielectric material; and a second discontinuous metal layer (4).