94 results about "Nickel Protoxide" patented technology

The invention discloses a high-temperature type lithium manganate anode material for a power lithium ion battery. The high-temperature type lithium manganate anode material consists of a core material as shown in a formula Li1+xMn2-y-zAyQzO4, and a coating layer on the surface of the core material, wherein the coating layer is one or more of cobaltosic oxide, aluminum oxide and nickel protoxide. The anode material is excellent in high-temperature property, and is good in specific discharge capacity, capacity retention ratio and electrochemical circulation property at high temperature. In addition, the preparation method of the anode material disclosed by the invention is simple in production process, easy to achieve and low in cost, and can be applied to large-scale industrialization production.

The invention discloses a formulation of an AC zinc oxide resistance chip. The formulation is characterized by comprising the following additives and a main material ZnO by weight percentage: 4.0 to 4.9 percent of Bi2O3, 3.0 to 4.0 percent of Sb2O3, 0.5 to 1.0 percent of SiO2, 2.0 to 3.0 percent of Co2O3, 0.50 to 0.80 percent of Cr2O3, 0.50 to 0.80 percent of MnCO3, 0.70 to 0.90 percent of NiO, 0.03 to 0.05 percent of aluminum nitrate, 0.10 to 0.20 percent of glass dust, 0.07 to 0.10 percent of B2O3 and 85.0 to 88.0 percent of ZnO. The formulation of the resistance chip has the following characteristics and advantages: the nickel protoxide and the glass dust are introduced into the formulation, so that the stability and the aging performance of the internal structure of the resistance chip is more excellent; and 2, dosage of cobalt sesquioxide, dibismuth trioxide and diantimony trioxide are added in the formulation, the mixture ratio of each composition is more reasonable, and the non-linearity coefficient of the resistance chip can be improved, the pressure ratio is reduced, the circulation capability is improved, and the comprehensive performance is excellent.

The invention relates to a nanometer metal ceramic inertia anode material for electrolytic aluminum and a preparation method thereof. The anode material is prepared by adding metal Cu powder and nanometer NiO into a metal ceramic matrix NiO-NiFe2O4 prepared from Ni2O3 and Fe2O3 which serve as raw materials, wherein the anode material comprises the following raw materials in percentage by mass: 52 to 54 percent of Ni2O3, 31 to 33 percent of Fe2O3 and 15 to 20 percent of Cu powder; and the addition amount of the nanometer NiO is 3 to 6 percent of the total mass of the raw materials. The preparation method comprises the following steps of: mixing nickel protoxide powder and iron oxide powder, and sintering to obtain a ground mass NiO-NiFe2O4; (2) grinding and sieving the ground mass; (3) adding copper powder and the nanometer NiO in the powder, and performing ultrasonic processing in industrial ethanol; (4) adding a dispersing agent and regulating a pH value, performing ball milling, and regulating the pH value again; (5) standing, precipitating, filtering and drying to obtain powder; (6) adding a plasticizing agent, mixing uniformly and compacting; and (7) sintering and cooling compacted blanks to obtain the nanometer metal ceramic inertia anode material. In the nanometer metal ceramic inertia anode material, the conductivity can reach 102 <-1>cm<-1> at the temperature of 1,000 DEG C, so the anode material can be used for aluminum electrolysis industry.

The invention discloses a preparation method and application of an interface modification layer based on a nickel protoxide hole transport layer. The preparation method comprises the following steps: (1) immersing the nickel protoxide hole transport layer in the aqueous solution of an interface modification agent; and (2) adsorbing the interface modification agent to a side of the nickel protoxide hole transport layer and forming the interface modification layer, wherein the interface modification agent is an organic molecule with an amino group at one end and a carboxyl group at the other end. By using the characteristics of the organic molecule with an amino group at one end and a carboxyl group at the other end, the organic molecule can be adsorbed to the nickel protoxide hole transport layer to form the interface modification layer to change the surface contact angle of the nickel protoxide hole transport layer, passivate the interface defect of the nickel protoxide hole transport layer and a perovskite film, improve the open-circuit voltage and the stability of a perovskite solar cell prepared subsequently, and further improve the overall performance of the perovskite solar cell.

The invention relates to a pole plate material of a super-capacitor, and a preparation method thereof, which are based on the micro-electro-mechanical-system silicon process and belong to the filed of capacitor manufacturing. In the pole plate material of the super-capacitor, a nickel protoxide thin film is wrapped on a silicon micro-channel substrate layer. The preparation method of the material comprises the following steps: an electrochemistry method is used for making a silicon micro-channel which is then taken as a substrate; after surface pretreatment is finished, a nickel layer is deposited in an electroless nickel plating solution; finally, fast thermal annealing is carried out in the atmosphere of oxygen; and nickel protoxide/silicon micro-channel compound material is formed. The pole plate material of the super-capacitor has large specific area and high chemical activity, is beneficial for electrolyte to be in better contact with active materials and can obtain relatively high charge storage capability and better capacitance characteristic; in addition, the combination of the pole plate material with the current micro-electronic processing technique can cause the super-capacitor to be easier for miniaturization and integration.

The invention discloses a method for producing nickel protoxide. In the method, a nickel plate is dissolved with hydrochloric acid to prepare a nickel chloride solution, the prepared nickel chloride solution reacts through a spray pyrolysis process to produce a high-quality nickel protoxide semi-finished product, the high-quality nickel protoxide semi-finished product is then subjected to calcinating and washing to reduce impurities in nickel protoxide, and the granularity of the high-quality nickel protoxide is reduced through the drying and grinding process to obtain the finished product. The method is specially used for overcoming the defects that nickel protoxide production cost is high, the environmental pollution is high and the product quality is low, the high-quality nickel protoxide is produced through the spray pyrolysis method, and the method is simple in technological operation, low in production cost, small in environmental pollution and remarkable in effect and has quitehigh actual application value.

The invention discloses a synthesis method of nickel protoxide precursor nickel carbonate. According to the method, parallel-flow and low-pH-value semi-synthesis for magnesium removal, pulpifying and high-pH-value alkaline leaching for sulfur removal as well as pulpifying and washing for sodium removal are performed, through precise control on the pH value, fractional precipitation, filtering and washing, impurities including magnesium, sodium and sulfate radicals are removed from a supernatant, and high-quality nickel protoxide precursor nickel carbonate is prepared. The method is low in processing cost, high in metal recovery rate, low in requirement for equipment materials, low in investment cost, low in technical threshold, simple, convenient, good in effect, good in nickel carbonate quality, stable and reliable in product quality, good in economy, high in profit, convenient to popularize and apply industrially and capable of recycling water resources, and is a green industrial project which is worthy of popularization, low in cost, low in energy consumption and high in benefit.

The invention relates to a preparation method of a solid oxide fuel cell two-layer anode, and relates to a preparation method of a solid oxide fuel cell anode, which aims at solving the problems of the traditional slurry coating method for preparing a SOFC thick anode that the anode is fractured and separated. The preparation method comprises the following steps: I, pressing electrolyte powder to form a green body, and sintering the green body to obtain an electrolyte supporting body; II, mixing nickel protoxide with electrolyte to obtain a mixture I, grinding the mixture I, and dividing the ground powder into initial powder a and initial powder b; III, adding a pore-forming agent into the initial powder a, mixing the pore-forming agent and the initial powder a to obtain a mixture II, pressing the mixture II to form an anode blank, and sintering the anode blank to obtain a porous anode block; IV, adding a binder into the initial powder b to obtain a mixture III, and smearing the mixture III onto the electrolyte supporting body; V, arranging the porous anode block on the anode blank which is coated with the slurry, and sintering to prepare the two-layer anode. According to the preparation method, a slurry coating method and a dry pressure method are combined to prepare the two-layer anode, the thickness of the anode can reach 0.1 to 3mm, and the deformation, fracturing and separation of the thick anode in the high temperature sintering process can be avoided.

The invention discloses a preparation method of a nanometer nickel protoxide-nickel-silicon alloy lithium ion battery negative electrode material and belongs to the technical field of preparing lithium ion battery electrode material. The feature of the lithium battery negative electrode material is that the lithium battery negative electrode material has a highly-ordered micro-nano silicon micro-channel substrate, and an excellent conductive NiSi layer electric charge collecting layer, and a NiO nanometer active layer has large specific surface area and an electrode orderly porous channel is suitable for an electrolyte solution to immerge. The preparation method of the battery cathode material is highly compatible with a traditional integrated circuit manufacturing process, and mainly comprises three main processes of etching to form the highly-ordered micro-nano silicon micro-channel substrate by using a photoinduced low temperature electrochemical pulse voltage wet method, depositing metallic nickel via an electroless plating process and rapid thermal annealing and oxidizing. The highly-ordered three-dimensional micro-nano porous NiO/Si-MCP (nickel protoxide/ silicon microchannel) negative electrode material has excellent physical and electrochemical support for immerging the electrolyte, transporting charges and embedding and de-embedding lithium ions, and could be used for preparing the integratable lithium ion battery electrode material.

The invention relates to the technical field of waste catalyst recovery, and discloses multi-element recycling of a residual oil hydrogenation waste catalyst. A multi-element recycling method comprises the following steps of adding a certain proportion of sodium carbonate into the waste catalyst, carrying out high-temperature roasting in a rotary kiln, carrying out a sodium modification reaction, carrying out sodium modification on valuable metals such as vanadium and molybdenum into soluble salt, and recycling vanadium and molybdenum through a wet process after water leaching; after an alumina carrier is changed into the soluble salt, separating from a material, then controlling the pH value, and introducing carbon dioxide to prepare an aluminum hydroxide product; and after molybdenum and vanadium are extracted and aluminum oxide is removed, enriching nickel in the material, then recycling nickel from nickel-rich slag through a wet process, and finally obtaining nickel protoxide. The method solves the problem of large investment of traditional pyrogenic process dealumination, and the dealumination section does not need natural gas, so that the energy consumption is reduced, and the secondary hazardous waste amount is small; and the dealumination effect is good, the aluminum recovery rate exceeds 95%, and the aluminum content in the nickel-rich slag is less than 10%.

The invention relates to the synthesis of an anode material for a lithium ion battery, and provides a hollow sphere anode material and a preparation method thereof. The preparation method comprises the following steps of enabling first mixed liquor containing glucose and nickel ammonium sulfate to subject to hydrothermal reaction to obtain first suspension liquid; drying the first suspension liquid to obtain first sediment of solid spheres; roasting the first sediment to obtain hollow spheres and a nickel protoxide precursor; mixing manganese acetate, lithium acetate and a solvent to obtain second mixed liquor; mixing and evaporating the second mixed liquor and the nickel protoxide precursor to obtain second sediment, and roasting the second sediment to obtain the hollow sphere anode material; the anode material is formed by packing nano-sized primary particles into micron-sized hollow sphere secondary particles. A hollow sphere micron-sized matrix structure can slow down the dissolution of the primary particles in electrolyte in a continuous cyclic process, so that the hollow sphere anode material cannot easily collapse in the cyclic process, showing excellent electrochemical performance.

The invention discloses a NiO/SiN wire and a method for preparing an integrated supercapacitor electrode material with high performance by adopting the material. The preparation method comprises the following steps: (1) the SiN wire is taken as a framework, a nickel membrane is sedimented on the SiN wire by the electroless plating technique to produce a nickel-silicon nanometer wire composite; and (2) the produced nickel-silicon nanometer wire composite is subject to rapid thermal annealing oxidation treatment. The invention adopts the advantages of the SiN wire that the scale is small, the specific surface is large, the surface atom has a large amount of nonsaturated bonds, and the tensiometric property is great, and takes the SiN wire as the framework for loading the NiO nanometer structure. The NiO/SiN wire has high specific capacitance, low equivalent essential resistance and good charging and discharging properties, is compatible with the integrated circuit technique and can be used for preparing the integrated supercapacitor electrode material with high performance.