657results about "Molybdenum oxides/hydroxides" patented technology

A light emitting element of the invention includes n pieces of light emitting layers (n is a natural number) between first and second electrodes. A first layer and a second layer are provided between the mth light emitting layer (m is a natural number of 1≦m≦n) and the m+1th light emitting layer. The first and second layers are contacted to each other. The first layer contains a substance that transports holes easily and a substance with an electron accepting property. The second layer contains a substance that transports electrons easily and a substance with an electron donating property. Molybdenum oxide is used as the substance with the electron accepting property.

Disclosed are: a metal oxide film, which is formed by a coating method that is one of the methods for producing a metal oxide film, and which has a good balance between excellent transparency and high electrical conductivity, while having excellent film strength; and a method for producing the metal oxide film. Specifically disclosed is a method for producing a metal oxide film, which comprises: a coating step wherein a coating film is formed on a substrate using a metal oxide film-forming coating liquid that contains various organic metal compounds; a drying step wherein the coating film is changed into a dry coating film; and a heating step wherein an inorganic film is formed from the dry coating film. The method for producing a metal oxide film is characterized in that in the heating step, the dry coating film, which is mainly composed of the various organic metal compounds, is heated to a temperature at which at least mineralization of organic metal compound components occurs or higher in an oxygen-containing atmosphere at a temperature not higher than the temperature that is lower by 10 DEG C than the dew point, so that the organic components in the dry coating film are removed by thermal decomposition or combustion, or by thermal decomposition and combustion, thereby forming a metal oxide fine particle layer which is densely filled with metal oxide fine particles that are mainly composed of various metal oxides.

The invention relates to a molybdenum oxide based nano photothermal conversion material and a preparation method thereof. The photothermal material is a MoO<3-x> nano material, wherein x is not less than 0 and not more than 1. The preparation method of the photothermal material comprises the following steps: adding H2O2 to elementary molybdenum, stirring the materials and then diluting the materials, thus obtaining a molybdenum precursor solution; adding a surfactant to the molybdenum precursor solution, stirring the mixture uniformly and then carrying out hydrothermal reaction and centrifugation, thus obtaining the molybdenum oxide based nano photothermal conversion material. The efficient molybdenum oxide based nano photothermal material is prepared by the simple, environment-friendly and cheap method provided by the invention and shows a huge application value in cancer treatment.

A method of manufacture an article of a cathode (positive electrode) material for lithium batteries. The cathode material is a lithium molybdenum composite transition metal oxide material and is prepared by mixing in a solid state an intermediate molybdenum composite transition metal oxide and a lithium source. The mixture is thermally treated to obtain the lithium molybdenum composite transition metal oxide cathode material.

A closed loop combustion system for the combustion of fuels using a molten metal oxide bed.

The invention discloses a method for preparing two-dimensional nanosheets by microwave-assisted liquid phase stripping of a layered material. The method comprises the following specific steps: 1) carrying out wet grinding of precursor powder of the layered material with a liquid medium in a mortar; 2) washing the wet-ground mixture with a same liquid medium and transferring into a microwave reaction tube; 3) placing the microwave reaction tube into a microwave reaction device, and carrying out microwave irradiation; 4) after microwave irradiation, washing and filtering the microwave mixture, and collecting a filter membrane; 5) carrying out ultrasonic dispersion of the obtained filter membrane in an organic solvent, and carrying out centrifugal separation, wherein a supernatant is a nanosheet dispersion liquid, and a precipitate is a separated unpeeled phase; and 6) filtering the obtained nanosheet dispersion liquid, collecting a filter membrane, and carrying out vacuum drying to obtain the nanosheet powder. The method is universal, fast and efficient in peeling various layered materials, and the prepared nanosheets are ultra-thin, large in size, small in peeling size reduction andhigh in chemical stability, and have broad application prospects in basic scientific researches, electronics, catalysis, energy, sensing and other hot fields.

A process for synthesizing nanoband of MoO3 monocrystal includes dissolving soluble molybdate and perchloric acid in water, and hydrothermal reaction at 100-200 deg.C while controlling the concentration of H ions (10mol / L[H]>0.01mol / L) and the speed of dropping acid (10mL / min>V7 0.1mL / m). Its advantages are unique ize and shape of product, and high output rate.

The invention relates to the technical field of nonferrous metallurgy, in particular to a method for preparing nanometer molybdenum trioxide and using pure molybdenum trioxide as a raw material. The pure molybdenum trioxide is used as the raw material, the nanometer molybdenum trioxide is prepared by means of plasma sublimation, pure molybdenum trioxide powder is fed into a plasma subliming furnace via a feeding device and is sublimed in plasma flow, operation time ranges from 10ms to 100ms, obtained gaseous molybdenum trioxide is in shock cooling by the aid of shock cooling media and collected by a receiving device, the nanometer molybdenum trioxide is obtained, and content of MoO3 is higher than 99.80%. The molybdenum trioxide is prepared by the aid of a plasma sublimation method, the high-purity nanometer molybdenum trioxide with the granularity within 80nm can be obtained in a super-short time period, and automatic and continuous production is truly realized.

The invention discloses porous molybdenum trioxide as well as a preparation method, a hydrogenation catalyst and a dehydrogenation catalyst thereof. The preparation method of the porous molybdenum trioxide comprises the following steps: S1, preparing an aqueous solution of molybdenum-containing soluble acid and / or molybdenum-containing soluble salt; S2, adding a template material with a three-dimensional cubic meso-porous structure in the aqueous solution to acquire a mixture; S3, drying and calcining the mixture to acquire a calcined product; and S4, removing the template material in the calcined product to acquire the porous molybdenum trioxide. According to the preparation method disclosed by the invention, with adoption of the template material with the three-dimensional cubic meso-porous structure, the molybdenum-containing soluble acid and / or the molybdenum-containing soluble salt are adsorbed in three-dimensional cubic meso pores, and the porous molybdenum trioxide with a complementary structure of the template material pore structure can be acquired by virtue of subsequent treatment on the mixture.

This invention discloses a method for preparing MoO3 nanostructure and its thin film in IR sintering furnace. The method comprises: heating and evaporating Mo evaporation source in atmospheric environment in an IR sintering furnace, reacting with oxygen in air to form MoO3, and depositing on a substrate to form MoO3 nanostructure and its thin film. The method has such advantages as simple process, high yield and low cost, and is suitable for preparing large-area MoO3 nanostructure and its thin film.

A process for the preparation of nanostructured materials in high phase purities using cavitation is disclosed. The method comprises mixing a metal containing solution with a precipitating agent and passing the mixture into a cavitation chamber. The chamber consists of a first element to produce cavitation bubbles, and a second element that creates a pressure zone sufficient to collapse the bubbles. The process is useful for the preparation of mixed metal oxide catalysts and materials for piezoelectrics and superconductors.