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1172 results about "Nickel oxides" patented technology
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Nickel forms a series of mixed oxide compounds which are commonly called nickelates. A nickelate is an anion containing nickel or a salt containing a nickelate anion, or a double compound containing nickel bound to oxygen and other elements. Nickel can be in different or even mixed oxidation states, ranging from +1, +2, +3 to +4. The anions can contain a single nickel ion, or multiple to form a cluster ion. The solid mixed oxide compounds are often ceramics, but can also be metallic. They have a variety of electrical and magnetic properties. Rare-earth elements form a range of perovskite nickelates, in which the properties vary systematically as the rare-earth element changes. Fine tuning of properties is achievable with mixtures of elements, applying stress or pressure, or varying the physical form.
Magnetoresistive structure having a novel specular and barrier layer combination
InactiveUS7684160B1Magnetic-field-controlled resistorsConductive/insulating/magnetic material on magnetic film applicationYttriumTitanium oxide
A method and system for providing a magnetoresistive structure is disclosed. The magnetoresistive structure includes a pinned layer, a nonmagnetic spacer layer, a free layer, a specular layer, a barrier layer, and a capping layer. The spacer layer resides between the pinned layer and the free layer. The free layer is electrically conductive and resides between the specular layer and the nonmagnetic spacer layer. The specular layer is adjacent to the free layer and includes at least one of titanium oxide, yttrium oxide, hafnium oxide, magnesium oxide, aluminum oxide, nickel oxide, iron oxide, zirconium oxide, niobium oxide, and tantalum oxide. The barrier layer resides between the specular layer and the capping layer. The barrier layer is nonmagnetic and includes a first material. The capping layer includes a second material different from the first material.
Owner:WESTERN DIGITAL TECH INC
Catalyst and method for reducing nitrogen oxides in exhaust streams with hydrocarbons or alcohols
A catalyst system and a method for reducing nitrogen oxides in an exhaust gas by reduction with a hydrocarbon or oxygen-containing organic compound reducing agent are provided. The catalyst system contains a silver catalyst and a modifier catalyst, where the modifier catalyst contains a modifier oxide, where the modifier oxide is selected from the group consisting of iron oxide, cerium oxide, copper oxide, manganese oxide, chromium oxide, a lanthanide oxide, an actinide oxide, molybdenum oxide, tin oxide, indium oxide, rhenium oxide, tantalum oxide, osmium oxide, barium oxide, calcium oxide, strontium oxide, potassium oxide, vanadium oxide, nickel oxide, tungsten oxide, and mixtures thereof. The modifier oxide is supported on an inorganic oxide support or supports, where at least one of the inorganic oxide supports is an acidic support. The catalyst system of the silver catalyst and the modifier catalyst provides higher NOx conversion than either the silver catalyst or the modifier catalyst alone.
Owner:CATALYTIC SOLUTIONS INC
Hydrogenating and pour point depressing catalyst and its preparing method
ActiveCN101143333AControl contentUnobstructed channelMolecular sieve catalystsRefining to eliminate hetero atomsPartial oxidationAdhesive
Owner:CHINA PETROLEUM & CHEM CORP +1
Thin film transistor, thin film transistor substrate, processes for producing the same, liquid crystal display using the same, and related devices and processes; and sputtering target, transparent electroconductive film formed by use of this,transparent electrode, and related devices and processes
InactiveUS20070170434A1Reduce light transmittanceConductive layers on insulating-supportsSemiconductor/solid-state device detailsIndiumLiquid-crystal display
Provided are a thin film transistor substrate having a transparent electroconductive film in which residues and so on resulting etching are hardly generated; a process for producing the same; and a liquid crystal display using this thin film transistor substrate. A thin film transistor substrate, comprising a transparent substrate, a source electrode formed over the transparent substrate, a drain electrode formed over the transparent substrate, and a transparent pixel electrode formed over the transparent substrate, wherein the transparent pixel electrode is a transparent electroconductive film which is made mainly of indium oxide, and further comprises one or two or more oxides selected from tungsten oxide, molybdenum oxide, nickel oxide and niobium oxide, and the transparent pixel electrode is electrically connected to the source electrode or the drain electrode; a process for producing the same; and a liquid crystal display using this thin film transistor substrate.
Owner:IDEMITSU KOSAN CO LTD
Hydrogenation refined catalyst, preparation method and application
The invention realtes to a hydrofining hydrotreating catalyst, preparation and application thereof. The catalyst has Mu, Co, Ni as active component, adding adjuvant, and alumina as carrier. Calculated by total weight of the catalyst, including: 14-20% of molybdena, 1-6% of powder blue, 1-4% of nickel oxide, 1-3% of oxide of adjuvant alkaline metal, 1-5% of adjuvant p or / and Sb oxide, 2-6% of Si or / and Sn oxide; pore volume of the catalyst is 0.45-0.65 cm<3> / g, surface area to volume ratio is 150-280 m<2> / g. The catalyst is suit for C5-C8 oil with low distillate, especially for two stage of hydrofining hydrotreating of C6-C8 distillate oil, hydrogenizating saturated mono olefin utmost while hydrodesulfurizating, enables suit for oil with versatile sulfur content and high airspeed.
Owner:PETROCHINA CO LTD
Light-emitting element and light-emitting device using the same
InactiveUS20050116633A1Luminous stabilityEfficient emissionsDischarge tube luminescnet screensElectroluminescent light sourcesEngineeringCopper oxide
It is an object of the invention is to provide a light-emitting element in which failure of the light-emitting element due to separation can be controlled and stable luminescence can be obtained with high-efficiency and for a long stretch of time by controlling separation of layers constituting the light-emitting element. According to one aspect of a light-emitting element of the invention, the light-emitting element sandwiches a plurality of layers between a pair of electrodes, wherein at least one layer of the plurality of layers is a layer containing a substance selected from bismuth oxide, cobalt oxide, chromium oxide, copper oxide, nickel oxide, and titanium oxide, or at least one layer of layers different from a light-emitting layer among the plurality of layers is a mixed region of one substance selected from bismuth oxide, cobalt oxide, copper oxide, magnesium oxide, nickel oxide, zinc oxide, and titanium oxide and an organic compound.
Owner:SEMICON ENERGY LAB CO LTD
Unsaturated hydrocarbon hydrogenation catalyst, preparation method and applications thereof
ActiveCN102218323ASolve the problem of hydrogenationExpansion of comprehensive utilization channelsHydrocarbon by hydrogenationMetal/metal-oxides/metal-hydroxide catalystsCoalCerium oxide
The invention discloses an unsaturated hydrocarbon hydrogenation catalyst which comprises a carrier, an active component and an additive; the active component is a mixture of nickel oxides and other metal oxides; the additive is at least two out of magnesia oxide, lanthanum oxide and ceria; counted by weight percentage, the unsaturated hydrocarbon hydrogenation catalyst comprises 5-15% of nickel oxides, 1-10% of other metal oxides, 1-10% of additive and remaining quantity of carrier; and the metal oxide is one or more oxides out of molybdenum oxide, cobalt oxide and ferric oxide. The invention also discloses a preparation method and applications of the unsaturated hydrocarbon hydrogenation catalyst. The unsaturated hydrocarbon hydrogenation catalyst has the advantages of high hydrogenation precision, strong side effect resistance, good thermal stability, long service life and the like, can be used for processing tail gas in indirect coal oil production industrial and can be also used for processing unsaturated hydrocarbon in synthesis gas.
Owner:THE NORTHWEST RES INST OF CHEM IND
Hydrodewaxing catalyst and its preparation method
ActiveCN102451748AImprove the effect of impurity removalInhibit carbon depositionMolecular sieve catalystsRefining to eliminate hetero atomsImpurityChemistry
The invention discloses a hydrodewaxing catalyst and its preparation method. With the weight of the catalyst as the reference, the catalyst contains the following components of: by weight, 5-10% of tungsten oxide, 1-5% of nickel oxide, 40-50% of nanometer ZSM-5 molecular sieve, 10-40% of macroporous alumina and the balance being a binder. The catalyst is prepared by the following steps of: firstly kneading the nanometer ZSM-5 molecular sieve, macroporous alumina and the binder to prepare a carrier, dipping loaded active metal, and finally carrying out hydrothermal treatment. The hydrodewaxing catalyst provided by the invention has a good shape-selective catalysis function and simultaneously has a good hydrofinishing function, and is especially suitable for the hydrofinishing and pour point reduction processes of a waxy hydrocarbon oil material containing high content of impurities such as sulfur, nitrogen and the like.
Owner:CHINA PETROLEUM & CHEM CORP +1
Photocatalyst responding to visible light, and preparation method and application
ActiveCN1600424ASimple preparation processLow costWater/sewage treatment by irradiationMetal/metal-oxides/metal-hydroxide catalystsPhotocatalytic reactionCopper oxide
A semiconductor photocatalyst responsive to visual light is composed of the particles of metallic oxide chosen from iron oxide, nickel oxide, cabolt oide, copper oxide, etc, the non-metal element chosen from N, C, S, B and P and semiconductor nanoparticles chosen frmo TiO2, SnO2, ZnO, CdS and WO3.
Owner:INST OF CHEM CHINESE ACAD OF SCI
Hydrogenation catalyst of containing phosphor with alumina being as carrier, and preparation
ActiveCN1872960AHigh activityHigh desulfurization activityRefining to eliminate hetero atomsPhosphorMolybdenum
This invention provides a method for preparing hydrogenation catalyst containing phosphorus supported by aluminum oxide. The catalyst is composed of nickel oxide 1-10 wt.%, molybdena oxide and tungsten oxide 10-50 wt.%, phosphorus oxide 1-10 wt.%, and aluminum oxide. The molar ratio of tungsten oxide to molybdena oxide is 2.6-30. The method comprises introducing nickel oxide, molybdena oxide, tungsten oxide and phosphorus oxide into aluminum oxide carrier. The catalyst has such advantage as high hydrogenation activity.
Owner:CHINA PETROLEUM & CHEM CORP +1
Fluorinated and phosphor-contained hydrogenation catalyst with silicon oxide-alumina as carrier and its production
ActiveCN1853780AHigh activityImprove desulfurizationPhysical/chemical process catalystsRefining to eliminate hetero atomsNickel oxidesChemistry
An F and P contained hydrocatalyst with silicon oxide-aluminum oxide as its carrier contains nickel oxide (1-10 Wt%), molybdenum oxide and tungsten oxide (10-50), F (1-10) , phosphorus oxide (0.5-8) and carrier (rest). It has high hydrorefining performance. It is prepared by introducing F, P, Mo, Ni and W to carrier.
Owner:CHINA PETROLEUM & CHEM CORP +1
Phosphor-contained hydrogenation catalyst with silicon oxide-alumin as carrier and its production
ActiveCN1853781AHigh activityPhysical/chemical process catalystsRefining to eliminate hetero atomsPhosphorSilicon oxide
A P-contained hydrocatalyst with silicon oxide-aluminum oxide as its carrier contains nickel oxide (1-10 Wt%), molybdenum oxide and tungsten oxide (10-50), phosphorus oxide (1-9) and carrier (rest). It has high hydrorefining performance. It is prepared by introducing P, Mo, Ni and W to carrier.
Owner:CHINA PETROLEUM & CHEM CORP +1
Non-aqueous electrolytic secondary cell
InactiveUS6436577B1Improve cycle performanceLow viscosityNon-aqueous electrolyte accumulatorsOrganic electrolyte cellsSolventTitanium oxide
In a non-aqueous electrolyte secondary battery provided with a positive electrode 1, a negative electrode 2, and a non-aqueous electrolyte solution, a lithium-containing composite nickel oxide is used as a chief component of the positive electrode material for the positive electrode, a lithium-containing titanium oxide is used as a chief component of the negative electrode material for the negative electrode, and the solvent of the non-aqueous electrolyte solution contains a cyclic carbonic ester and a chain carbonic ester in such a manner that the cyclic carbonic ester and chain carbonic ester are contained in amounts of not less than 10% by volume of the whole solvent, respectively, and the total content of the cyclic carbonic ester and the chain carbonic ester is not less than 60% by volume of the whole solvent.
Owner:SANYO ELECTRIC CO LTD
Efficient Reversible Electrodes For Solid Oxide Electrolyzer Cells
An electrolyzer cell is disclosed which includes a cathode to reduce an oxygen-containing molecule, such as H2O, CO2, or a combination thereof, to produce an oxygen ion and a fuel molecule, such as H2, CO, or a combination thereof. An electrolyte is coupled to the cathode to transport the oxygen ion to an anode. The anode is coupled to the electrolyte to receive the oxygen ion and produce oxygen gas therewith. In one embodiment, the anode may be fabricated to include an electron-conducting phase having a perovskite crystalline structure or structure similar thereto. This perovskite may have a chemical formula of substantially (Pr(1-x)Lax)(z-y)A′yBO(3-∂), wherein 0≦x≦0.5, 0≦y≦0.5, and 0.8≦z≦1.1. In another embodiment, the cathode includes an electron-conducting phase that contains nickel oxide intermixed with magnesium oxide.
Owner:COORSTEK INC
Green biodiesel
InactiveUS7563915B2Reduce wasteSignificant energyFatty oils/acids recovery from wasteFatty acid esterificationCalcium silicateBiodiesel
Methods for improved manufacture of green biodiesel focus on the selection and use of one or more solid metallic oxide base catalyst(s) selected from the group consisting of calcium oxide (CaO), calcium aluminum oxide (CaO—Al2O3), calcium titanate (CaTiO3), barium titanate (BaTiO3), magnesium aluminum oxide (MgO—Al2O3), zinc oxide (ZnO), copper (II) oxide (CuO), nickel oxide (NiO), manganese oxide (MnO), titanium oxide (TiO), vanadium oxide (VO), cobalt oxide (CoO), iron oxide (FeO), chromite (FeCr2O4), hydrotalcite (Mg6Al2(CO3)(OH)16.4(H2O), magnetite (Fe3O4), magnesium silicate and calcium silicate.
Owner:PENN STATE RES FOUND
Positive electrodes for lithium batteries and their methods of fabrication
InactiveUS20050186474A1Low costImprove cycle performanceSecondary cellsPositive electrodesSpinelLithium manganese oxide
The present invention discloses positive electrodes and their methods of fabrication. These electrodes are low in cost. Lithium rechargeable batteries that use these positive electrodes have excellent cycling properties at high temperature. The positive electrode of the embodiments of this invention comprises of a current collector coated by two layers of active materials for positive electrodes. The active material for the first layer of coating is one or more active materials selected from the following: spinel lithium manganese oxide, and spinel lithium manganese oxide derivatives. The active material for the second layer of coating is one or more active material selected from the following: lithium cobalt oxide, lithium cobalt oxide derivatives, lithium nickel oxide, and lithium nickel oxide derivatives. To fabricate these positive electrodes, a first layer of coating comprising of the active materials stated above is applied onto a current collector and then dried before a second layer of coating is applied onto the surface of the first layer of coating. The positive electrode is obtained after the current collector with the two layers of coating is dried a second time and then pressed to form a slice.
Owner:BYD AMERICA CORP
Diesel hydrodesulfurization and denitrification catalyst and preparation method thereof
InactiveCN103551162AGood dispersionIncrease profitMetal/metal-oxides/metal-hydroxide catalystsRefining to eliminate hetero atomsHydrodesulfurizationOxide composite
The invention discloses a diesel hydrodesulfurization and denitrification catalyst. The catalyst comprises the following compositions: a carrier, an additive, and an active metal, wherein the carrier is an Al2O3-ZrO2-TiO2-SiO2 multibasic oxide composite carrier; the additive is phosphorus; nickel, cobalt, molybdenum and tungsten are taken as active components; through taking the catalyst as a benchmark, in terms of oxides, the catalyst comprises the following components in percentage by weight, 1-6wt% of cobalt oxide, 1-15wt% of nickel oxide, 2-12wt% of molybdenum oxide, 12-35wt% of tungsten oxide and 1.5-5wt% of an additive phosphorus pentoxide; and the pore volume of the catalyst is not less than 0.2 mL / g, the specific surface area of the catalyst is not less than 140 m<2> / g, and the mechanical strength of the catalyst is not less than 15N / mm; and the composite carrier comprises the following components in percentage by weight: 2-15wt% of titanium oxide, 2-20wt% of silicon oxide, 5-15wt% of zirconium oxide, and the balance of aluminum oxide.
Owner:CHINA NAT OFFSHORE OIL CORP +2
Electrode comprising lithium nickel oxide layer, method for preparing the same, and electrochromic device comprising the same
ActiveUS7564611B2Limit on applied voltageMaintain good propertiesCell electrodesNon-linear opticsElectricityLithium
The present invention provides A method for preparing an electrode containing lithium nickel oxide wherein nickel has a single oxidation number, which comprises the following steps: a) preparing an electrode containing the lithium nickel oxide (LixNi1−yO, 0.4<x<1, 0<y<1) layer formed on the conductive substrate; and b) applying oxidative voltage to the electrode, and then applying reductive voltage thereto, an electrode prepared by the method and an electrochromic device containing the same.The electrode containing the lithium nickel oxide layer of the present invention exhibits wider optical electrochromic range and fast reaction speed, so that it can contribute to improving electrochromism and other optical properties of an electrochromic device.
Owner:LG ENERGY SOLUTION LTD
Electrochemical device
InactiveUS7604717B2Faster, more economically viable and simpler to carry outCellsOptical filtersMinor elementThin layer
The invention relates to an essentially metallic target of a cathodic sputtering device, in particular a magnetic-field-assisted device, the said target mainly comprising nickel alloyed with at least one other minor element in order to reduce or eliminate its ferromagnetism. The invention also relates to the use of the target to manufacture an electrochromic material with anodic colourization as a thin layer based on alloyed nickel oxide.
Owner:SAINT-GOBAIN GLASS FRANCE
Hydrogenation catalyst with silicon oxide-alumina as carrier and its preparation
ActiveCN1840618AHigh activityImprove hydrogenation activityRefining to eliminate hetero atomsSilicon oxideHydrocarbon
Owner:CHINA PETROLEUM & CHEM CORP +1
Pyrolysis gasoline nickel system selective hydrogenation catalyst and preparation method thereof
ActiveCN103657670AGood choiceImprove stabilityMetal/metal-oxides/metal-hydroxide catalystsRefining by selective hydrogenationHydrogenation reactionActive component
The invention provides a pyrolysis gasoline nickel system selective hydrogenation catalyst and a preparation method of the pyrolysis gasoline nickel system selective hydrogenation catalyst and belongs to a catalyst containing metal or metal oxide or hydroxide. The pyrolysis gasoline nickel system selective hydrogenation catalyst is characterized by being provided with a mesopore-macropore or double-mesopore compound pore channel, taking aluminum oxide as a carrier, taking nickel as a main active component, taking molybdenum as an auxiliary active component and taking the metal oxide as an auxiliary agent; the pyrolysis gasoline nickel system selective hydrogenation catalyst is composed of following components in parts by weight: 15-19 parts of nickel oxide, 6.5-20 parts of molybdenum oxide, 2.2-4.5 parts of the auxiliary agent and the balance of the aluminum oxide; the auxiliary agent is one or the combination of more than two of potassium oxide, magnesium oxide and lanthanum oxide. The invention provides the pyrolysis gasoline nickel system selective hydrogenation catalyst which is large in pore capacity and high in specific surface, has good reaction activity, high hydrogenation reaction selectivity, good stability, good arsenic dissolving and glue resisting capabilities and is provided with the compound pore channel, and the preparation method of the pyrolysis gasoline nickel system selective hydrogenation catalyst. When the catalyst is used for selectively hydrogenating full-fraction pyrolysis gasoline, the average diene hydrogenation rate is 99%.
Owner:CHINA PETROLEUM & CHEM CORP
Fluorinated hydrogenation catalyst with silicon oxide-alumina as carrier and its production
ActiveCN1853779AHigh activityPhysical/chemical process catalystsRefining by aromatic hydrocarbon hydrogenationSilicon oxideChemistry
Owner:CHINA PETROLEUM & CHEM CORP +1
Method for preparing lithium ion battery anode material doped with nanometer oxide
InactiveCN101719546AInitial reversible capacity improvement and enhancementIncreased initial reversible capacityCell electrodesCapacitanceLithium iron phosphate
The invention relates to a method for preparing a lithium ion battery anode material doped with a nanometer oxide, belonging to the technical field of manufacturing processes of lithium ion battery batteries. The method is characterized in that trace amount of nanometer oxide power is doped in the preparation process of lithium manganate, lithium cobaltoxide and lithium iron phosphate; the doping amount is 0.5-1.0 mol percent of lithium salts; and the nanometer oxide is selected from one or two of alumina, magnesia, titanium oxide, chromic oxide, nickel oxide, monox and zirconia and the nanometer oxide is subject to ball milling, drying, sieving, calcinating, crushing, grading and other processes to obtain the nanometer oxide doped or coated lithium ion battery anode material. The lithium ion battery anode material has reversible initial capacitance, and remarkably-improved attenuation property, charging-discharging properties, high-temperature circulating property and electrochemistry stability.
Owner:SHANGHAI UNIV
Positive electrode active material for non-aqueous electrolyte-based secondary battery, production method therefor and non-aqueous electrolyte-based secondary battery using the same
ActiveUS20070231691A1Large capacityLow costNon-aqueous electrolyte accumulatorsActive material electrodesAir atmosphereHeat stability
The present invention provides a positive electrode active material for a non-aqueous electrolyte-based secondary battery, composed of a lithium / nickel composite oxide with high capacity, low cost and excellent heat stability, an industrially suitable production method therefor, and a high safety non-aqueous electrolyte-based secondary battery. A lithium / nickel composite oxide is produced by the following steps (a) to (c): (a) Nickel hydroxide or nickel oxyhydroxide having a specified component is prepared at a temperature of 600 to 1100° C., under air atmosphere. (b) Fired powders are prepared after mixing said nickel oxide and a lithium compound, and then by firing at a maximal temperature range of 650 to 850° C., under oxygen atmosphere. (c) Obtained fired powders are washed with water within a time satisfying the following equation (2) and then filtered and dried. A<B / 40 (2) wherein, A represents washing time represented by unit of minute; and B represents slurry concentration represented by unit of g / L).
Owner:SUMITOMO METAL MINING CO LTD +1
Oxides for Wound Healing and Body Repair
The invention provides a homogeneous composition comprising a hemostatically effective amount of a charged oxide, wherein the composition has an isoelectric point, as measured in calcium chloride, below 7.3 or above 7.4. Typically, the charged oxide is selected from the group consisting of silaceous oxides, titanium oxides, aluminum oxides, calcium oxides, zinc oxides, nickel oxides and iron oxides. In some embodiments, the composition further comprises a second oxide selected from the group consisting of calcium oxide, sodium oxide, magnesium oxide, zinc oxide, phosphorus oxide and alumina. In a typical embodiment of the invention, the charged oxide is silaceous oxide, the second oxide comprises calcium oxide and the ratio, by molar ratio, of silaceous oxide to calcium oxide is 0.25 to 15. Optionally, the composition further comprises phosphorous oxide. Also described are methods of making and using such compositions.
Owner:RGT UNIV OF CALIFORNIA
Nickel oxide nano rod array material, method for preparing same and application thereof
ActiveCN102154695AShape is easy to controlSimple methodPolycrystalline material growthFrom normal temperature solutionsHigh current densityCapacitance
The invention discloses a nickel oxide nano rod array material, a method for preparing the same and application thereof, and belongs to the technical field of inorganic advanced nano materials. The nickel oxide nano rods are vertically and orderly grown on the nickel foam substrate, and the nickel oxide nano rods are 100 to 800 nanometers long and 5 to 30 nanometers wide. The preparation method comprises the following steps of: putting the nickel foam substrate in concentrated hydrochloric acid, deionized water and ethanol for ultrasonic cleaning respectively; dissolving soluble nickel salt and urea in deionized water to obtain clear solution; obliquely putting the nickel foam substrate in a reaction kettle, and moving the clear solution to the reaction kettle for hydrothermal reaction, and after reaction, using the cooling water to cool the reaction kettle to the room temperature; taking the nickel foam substrate out of the reaction kettle, and cleaning the nickel foam substrate withwater and ethanol; and drying the product in an oven, and calcining the dried product. The one-piece product has a very big capacitance value which can be well kept even under high current density and is high in cycle performance, so that the product is a super capacitor material with a great application prospect.
Owner:BEIJING UNIV OF CHEM TECH
Hydrotreating catalyst of containing molecular sieve, and preparation method
This invention provides a hydrogenation catalyst containing molecular sieve, which is composed of nickel oxide 1-10 wt. %, molybdena oxide and tungsten oxide 10-50 wt. %, and carrier. The catalyst is prepared by introducing nickel, molybdena and tungsten into the carrier containing molecular sieve. The catalyst has such advantages as high desulfurization and denitrification activity, and high ring-opening activity.
Owner:CHINA PETROLEUM & CHEM CORP +1
Graphene/nickel oxide laminated-structure composite film and preparation method thereof
ActiveCN101733985AImprove conductivityHigh strengthLayered productsNickel oxides/hydroxidesCapacitanceComposite film
The invention relates to a graphene / nickel oxide laminated-structure composite film and a preparation method thereof. The preparation method comprises the following steps: putting graphite oxide and a solvent in the proportion of 0.5-2:1 (mg / mL) into a beaker, and carrying out the ultrasonic treatment for 0.5-5 hours to obtain the finely disseminated graphene oxide solution; adding a nickel nitrate solution to the graphene oxide solution in the volume proportion of 1:1-10, continuing to carry out the ultrasonic treatment for 0.5-5 hours to obtain the graphene oxide / nickel nitrate solution; vacuum-drying at 70-90 DEG C to obtain the graphene oxide / nickel nitrate film; and carrying out the heat treatment on the film at 330-1000 DEG C in the protective atmosphere to obtain the graphene / nickel oxide laminated-structure composite film. The composite film has favorable electric properties and mechanical properties; and the specific capacitance can reach 180-1300 F / g, the thickness is 0.02-10 mu m, and the particle size of the nickel oxide in the film is 1-200 nm. The invention has the advantages of simple preparation process, easy operation, controllable film thickness, scalable shape, adjustable scale, low cost and easy amplification of technique.
Owner:TIANJIN UNIV
Hydrogenation catalyst and production thereof
ActiveCN1853777AHigh activityMetal/metal-oxides/metal-hydroxide catalystsRefining by aromatic hydrocarbon hydrogenationMolybdenum oxideAluminium oxide
Owner:CHINA PETROLEUM & CHEM CORP +1
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