42 results about "Rhenium trioxide" patented technology

An object of the present invention is to provide a composite material formed of an organic compound and an inorganic compound, and has an excellent carrier transporting property, an excellent carrier injecting property to the organic compound, as well as excellent transparency. A composite material of the present invention for achieving the above object is a composite material of an organic compound represented in the general formula below, and an inorganic compound. For the inorganic compound, an oxide of a transition metal, preferably an oxide of a metal belonging to groups 4 to 8 of the periodic table, in particular vanadium oxide, tantalum oxide, molybdenum oxide, tungsten oxide, rhenium oxide, and ruthenium oxide, can be used.

The invention discloses a method for growing rhenium disulfide nanometer sheets on a silicon substrate of a non-oxidation layer. The method comprises the following steps that S1, the silicon substrateis cleaned and is subjected to pretreatment; S2, in a multi-temperature-zone tubular furnace, one aluminum oxide boat is arranged in each of two adjacent temperature regions, wherein the distance between the two aluminum oxide boats is 20 to 30cm; a sulfur source is arranged in the center position of the aluminum oxide boat in the upper stream temperature region; a rhenium source is arranged in the lower stream edge of the aluminum oxide boat of the lower stream temperature region; a growth surface of the silicon substrate faces the downward position; the distance from the silicon substrate to the lower stream edge of the aluminum oxide boat of the lower stream temperature region is 0 to 1cm; S3, then, inert gas is introduced into a dual-temperature-region tubular furnace, heating is performed for reaction; the rhenium disulfide nanometer sheets can grow on the silicon substrate of the non-oxidation layer. The sublimed sulfur is used as a sulfur source; rhenium trioxide is used as a rhenium source; a chemical gas phase precipitation method is used; by regulating the distance between the sulfur source and the rhenium source and the position of the rhenium source in the lower streamtemperature region and the position of the silicon substrate, the rhenium disulfide nanometer sheets on the silicon substrate can directly grow on the silicon substrate of the non-oxidation layer.

The invention relates to an organic electroluminescence device and a preparation method thereof. The organic electroluminescence device comprises an anode conductive substrate, a hole injection room, a hole transmission layer, a luminous layer, an electronic transmission layer, an electron injection layer and a cathode which are sequentially stacked, wherein the cathode comprises sodium salt layer, a doping layer and a metallic sulfide layer which are sequentially stacked on the electron injection layer; the material of the sodium salt layer is sodium carbonate, sodium fluoride, sodium chloride or sodium bromide; The material of the doping layer comprises rhenium oxide, a passivation material and metal; the rhenium oxide is rhenium heptoxide, rhenium dioxide, rhenium trioxide or rhenium sesquioxide; the passivation material is silicon oxide, aluminum oxide, nickelous oxide or copper oxide; the metal is magnesium, strontium calcium or ytterbium; the material of the metallic sulfide room is zinc sulfide, cadmium sulfide, magnesium sulfide or copper sulphide. The organic electroluminescence device is high in luminous efficiency.

The invention provides a growth method of rhenium disulfide monocrystal, including: mixing and placing rhenium trisulfide and excessive sulfur powder according to a ratio into a quartz tube, vacuumizing, holding a temperature of 400 DEG C for one to two days, grinding obtained powder, burning on an alcohol burner, and removing redundant sulfur to obtain high-purity rhenium disulfide polycrystal; mixing the obtained desulfurized rhenium disulfide polycrystal with a transport agent bromine, sealing in a quartz tube, vacuumizing, placing in a multi-temperature furnace, and growing rhenium disulfide monocrystal by a chemical gaseous transport method.

A for preparing Tyrosol and / or Hydroxytyrosol from oil mill wastewaters.includes:a) Microfiltration (MF), Ultrafiltration (UF). Nanofiltration (NF) and Reverse Osmosis (RO) of the OMW;b) Separation of Tyrosol, Hydroxytyrosol and other phenolic compounds from the concentrated RO;c) Oxidation of the obtained Tyrosol to Hydroxytyrosol in the presence of methyl rhenium trioxide and of hydrogen peroxide in a protic solvent.

The invention provides processes for producing phytol, isophytol, and certain phytol derivatives by a method of oxidizing or epoxidizing geranylgeraniol or geranylgeraniol derivatives to form epoxygeranylgeraniol derivatives, reducing or hydrogenating the epoxygeranylgeraniol derivatives to produce epoxyphytol derivatives, and then deoxygenating the epoxyphytol derivatives to produce phytol, isophytol, phytene derivatives, isophytene derivatives, or mixtures thereof. The step of deoxygenating is carried out in the presence of deoxygenation catalysts, including rhenium trioxide compounds. The invention also provides methods for the synthesis of certain novel substituted epoxyphytyl compounds and substituted phytene compounds having removable protecting groups. The produced phytol, isophytol, phytene derivatives, isophytene derivatives, substituted epoxyphytyl compounds and substituted phytene compounds are suitable starting materials for condensation with trimethylhydroquinone derivatives in the presence of Lewis acids to give tocopherol derivatives including alpha-tocopherol, vitamin E.

A composition for the degradation of plastic in the form of an additive used during the manufacturing of plastic. The composition being comprised of a predetermined amount of heptane, cellulose, methyl rhenium trioxide, butylated hydroxytoluene, and polyphenol oxidase. The additive can be selectively programmed to cause the plastic to begin disintegrating at a predetermined time.

The invention relates to a method for directly growing uniform rhenium diselenide nanosheets on a base electrode, a modified electrode and its application. The method includes the following steps: S1: heating the selenium powder until the selenium powder is gasified; heating the rhenium trioxide and the base electrode, and introducing a reducing gas; S2: after the rhenium trioxide is heated to cracking, the gasified selenium powder mixed with it, continue to heat up to 450-700°C, rhenium diselenide grows and deposits on the base electrode; the mass ratio of selenium powder to rhenium trioxide is 200:1-300:1. In the present invention, rhenium diselenide is directly grown on the substrate electrode by chemical vapor deposition method, and used as an electrode for catalytic hydrogen production, which greatly improves the adhesion between rhenium diselenide and the electrode, and at the same time improves the rhenium diselenide. catalytic. In addition, the temperature of the method is low and the process is simple.

The invention discloses a method for preparing a pantoprazole sodium sulfone-nitrogen oxidized impurity. The method comprises the steps: enabling 2-chloromethyl-3,4-dimethoxy pyridine hydrochloride, which serves as a raw material, to react with 5-difluoromethoxy-2-mercapto-1H-benzimidazole so as to produce 5-difluoromethoxy-2-{[(3,4-dimethoxy-2-pyridyl)methyl]sulfo}-1H-benzimidazole; then, oxidizing 5-difluoromethoxy-2-{[(3,4-dimethoxy-2-pyridyl)methyl]sulfo}-1H-benzimidazole in the presence of hydrogen peroxide and acetic acid in a manner of using methyl rhenium trioxide as a catalyst, so as to produce a sulfone-nitrogen oxidized product of pantoprazole; and finally, forming a sodium salt by the sulfone-nitrogen oxidized product of pantoprazole and sodium hydroxide, thereby obtaining the pantoprazole sodium sulfone-nitrogen oxidized impurity. According to the method, the hydrogen peroxide-acetic acid system can oxidize a pyridine ring. The oxidizer methyl rhenium trioxide is adopted as the catalyst and can be complexed with hydrogen peroxide so as to produce peroxide of rhenium, oxygen in the peroxide of rhenium can be transferred to thioether needing oxidization, and thioether can be oxidized into sulfone through controlling the usage amount of the catalyst and the reaction temperature, so that the high-yield and high-purity product can be obtained.

The invention provides a solar cell device comprising an anode, a hole buffer layer, an active layer, a hole barrier layer, an electron buffer layer and a cathode which are laminated in turn. The material of the active layer is mixture of poly 3-hexyl thiophene and methyl butyrate of fullerene. The material of the hole barrier layer comprises oxides of rhenium and graphite. The oxides of rhenium are selected from at least one of rhenium dioxide, rhenium heptoxide, rhenium trioxide and oxide rhenium. The solar cell device is relatively high in energy conversion efficiency. Besides, the invention also provides a preparation method of the solar cell device.