60 results about "Ni oxide" patented technology

A high-reliability electronic component without reduction in insulation resistance under high-temperature and high-humidity conditions has satisfactory solderability of external electrodes. The electronic component includes a main body and external electrodes disposed on surfaces of the main body, the external electrodes include underlying electrode layers each containing a metal, alloy layers each disposed on the corresponding underlying electrode layer, Ni plating layers each disposed on the corresponding alloy layer, Ni oxide layers each disposed on the corresponding Ni plating layers, and upper plating layers each disposed on the corresponding Ni oxide layer, each Ni oxide layer having a thickness of about 150 nm or less, and each Ni plating layer having an average particle size of Ni particles of about 2 μm or more. To form the Ni plating layers having reduced grain boundaries, heat treatment is performed at about 500° C. to about 900° C. inclusive in a reducing atmosphere having an oxygen concentration of about 100 ppm or less.

A carbon substance comprises a structure and line-shaped bodies, the structure having a size ranging from about 1 μm to about 100 μm and including carbon and a metal or a metallic oxide, and the line-shaped bodies having diameters smaller than about 200 nm and including carbon as a main component thereof and growing radially from a surface of the structure. A method for manufacturing the carbon substance uses a thermal decomposition of a source gas containing carbon in the vicinity of a catalyst, wherein the catalyst comprises a first and a second materials, the first material being Ni or a Ni oxide and the second material being In or an In oxide; and the thermal decomposition is performed at a temperature ranging from about 675° C. to about 750° C. An electron emission element uses the carbon substance as an electron emission material. A composite material includes the carbon substance in its matrix.

The invention provides a catalyst for hydro-denitrification of inferior heavy distillate oil and a preparation method and application of the catalyst. The preparation method comprises the following steps of: performing surface acid treatment on aluminum oxide and an HY molecular sieve separately; mechanically compounding the aluminum oxide subjected to the acid treatment and the HY molecular sieve subjected to the acid treatment into a carrier; dipping steeping liquid containing catalyst active components to load the catalyst active components; and drying to obtain the catalyst for hydro-denitrification of heavy distillate oil. In the carrier, the content of the HY molecular sieve subjected to the acid treatment is 5 to 20 percent, the active components comprise Mo and/or W, and Co and/or Ni, the steeping liquid also comprises a complexing agent, the Mo and/or W oxide content of the catalyst is 10 to 30 percent, and the Co and/or Ni oxide content of the catalyst is 1 to 10 percent. The catalyst has the characteristics of reasonable acidic distribution, a large number of active metal stacking piles and complete metal vulcanization, has a high hydro-denitrification activity to the inferior heavy distillate oil, and has high hydro-desulfurization performance.

The invention discloses a preparation method of a metal phosphide-porous carbon framework composite material. The method comprises the following steps: calcining a bimetallic metal organic framework material to obtain a porous carbon framework material, respectively placing the porous carbon framework material and a phosphorus source in two ends of a tubular furnace, introducing an inert gas, heating the tubular furnace to a certain temperature, carrying out a phosphating reaction, and washing the obtained reaction product with an acid to obtain the metal phosphide-porous carbon framework composite material. The invention also discloses the metal phosphide-porous carbon framework composite material and an application thereof. The metal phosphide-porous carbon framework composite material prepared through the preparation method has the advantages of large specific surface area, small particle size of metal phosphide, and excellent catalytic hydrogen desorption performance. The porous metal phosphide with a large specific surface area is obtained by using a bimetallic metal organic framework as a self-template through a selective phosphating technology capable of phosphating Co3O4 ornickel oxide but incapable of phosphating zinc oxide under the same conditions; and the preparation method has the advantages of simplicity, novelty and low cost.

The invention relates to a lithium secondary battery anode, including active anode material and water absorbent scattered in the active anode material. The active anode material includes Li-Mn oxide, Li-Ni oxide, Li-Co oxide, and other compound oxides of Li and transition metal; the water absorbent includes lithiated molecular sieve, activated carbon, active aluminum oxide, silica gel, calcium oxide, calcium sulfate, etc, and has strong water absorptivity with dew point lower than -56deg.C. The water absorbent can completely absorb residual water in lithium secondary battery manufacturing procedure and osmotic water due to air permeability of water molecules as use, preventing the poisoning of lithium ion battery, thus prolonging the service life of lithium secondary battery. The invention also relates to a lithium secondary battery using this anode.

The present invention provides enamelware and a glaze improving the bondability between the steel substrate and enamel layer and superior in resistance to dew point corrosion by sulfuric acid and hydrochloric acid, that is, a steel substrate of a composition containing, by mass %, Cu: 0.05 to 0.5%, Si: 0.1 to 2.0%, Mn: 0.05 to 2.0%, P: 0.005 to 0.10%, and S: 0.005 to 0.1%, restricting C to C: 0.20% or less, and comprising a balance of Fe and unavoidable impurities on the surface of which an enamel layer of a thickness of 50 to 700 μm is provided. At that time, the content of Co oxides in the enamel layer is made, converted to Co, 0.01 to 10% and/or the content of Ni oxides is made, converted to Ni, 0.05 to 20% or the total content of Ni in the steel substrate and enamel layer is made 0.005 to 4.5% with respect to the total mass of the enamelware and/or the total content of Co is made 0.008 to 4.0% with respect to the total mass of the enamelware.

The invention provides an oxidative catalyst prepared with hydrotalcite as the forerunner material, which comprises (wt %): 5- 40% NiO, 5- 15% Fe2O3, and the rest being MgO, Al2O3, and the oxides of other transient metal element, the mole ratio of divalent metallic ion to trivalent metal ion in whole oxides being among 1: 1- 10: 1. The catalyst has a perfect reaction activity and a high selectivity.

The invention discloses a preparing method of high-capacitance Sn-Ni alloy composite Li ion battery negative electrode material in the Li ion battery domain, which comprises the following steps: matching Sn and Ni oxide in the alloy composition according to proportion; adding fitful proportional carbon powder as reducer; grinding composition evenly; placing the composition in the flowing inert argon environment at 5-30 deg.c per min to 800-1200 deg.c for 1-6 h; interrupting; cooling the furnace to indoor temperature. The invention simplifies the preparing technology and reduces the cost, which produces high-specific content and stable circulation property Sn-Co Li ion battery negative material.

The composite protectant for hydrogenation catalyst includes one protectant substrate of ceramic, and one layer of Mo or Ni oxide supported on the surface of the protectant substrate and combined closely through high temperature sintering. The porous composite protectant can support the main catalyst during the hydrogenation reaction process, filter off organic impurity from the material oil to avoid catalyst poisoning and prevent raise in pressure drop in the reactor, and raise catalysis efficiency with the supported Mo or Ni oxide to participate the hydrogenating polymerization reaction. The composite protectant may be applied widely as catalyst protectant in the petroleum hydrogenating process.

The invention discloses a phosphorus-doped ferronickel oxide nitrogen-doped carbon nanofiber composite material which is characterized in that the phosphorus-doped ferronickel oxide nitrogen-doped carbon nanofiber composite material is prepared by taking nitrogen-doped carbon nanofibers as a carrier and growing NiFe-LDH nanosheets on the surface of the nitrogen-doped carbon nanofibers in situ. Thepreparation method comprises an annealing process and a high-temperature phosphorus doping process. The phosphorus-doped ferronickel oxide nitrogen-doped carbon nanofiber composite material has the advantages of large specific surface area, good conductivity, stable physical and chemical properties, excellent electrochemical performance and the like.

The invention relates to a tubular (porous) Ti/W/Ni oxide thin film catalytic electrode in-site loaded with platinum (palladium) nanoparticles and a preparation method therefor, and belongs to the technical field of energy materials and electro-catalysis, for solving technical problems by providing the nano-tubular (porous) Ti/W/Ni oxide thin film catalytic electrode in-site loaded with the platinum (palladium) nanoparticles, having a simple preparation process, high possibility of large-scale industrial production without using noble metal salts and strong reducing agents in the production process, and low environmental harm, and the preparation method therefor; for fulfilling the purpose, the invention adopts the technical scheme as follows: depositing a Ti/W/Ni-Pt/Pd alloy thin film into a titanium sheet, a tungsten sheet, a nickel titanium alloy sheet or the surface of a conductive glass, then taking the metal sheet or the conductive glass deposited with the Ti/W/Ni-Pt/Pd alloy thin film as the positive electrode, and taking a graphite rod/sheet or a platinum filament/sheet as the negative electrode for performing an anodic oxidation treatment to obtain the nanotube/porous Ti/W/Ni oxide thin film catalytic electrode in-site loaded with the platinum/palladium nanoparticles, wherein the metal Pt/Pd in the electrode is in-site embedded in the nanotube/porous wall of the nanotube/porous Ti/W/Ni oxide and exists in the form of the metal-state nanoparticles.

Disclosed is a dielectric composition, which is advantageous in light of increased homogeneity and insulation resistance, a method of preparing the same and a multi-layer ceramic capacitor using the same. The dielectric composition consists of a dielectric component represented by (Ba1-x-yCaxAy)m(Ti1-a-b-cZraB'bB''c)O3+m, (wherein, 0.01<=x<=0.10, 0.003<=y<=0.015, 0.16<=a<=0.20, 0.003<=b<=0.015, 0<=c<=0.015, 1.000<=m<=1.010; the component A is selected from among Y oxides, La oxides, Ho oxides, Dy oxides, Er oxides, Hf oxides and combinations thereof; the component B' is selected from among Mn oxides, Co oxides, Ni oxides and combinations thereof; and the component B'' is selected from among V oxides, Nb oxides, Ta oxides and combinations thereof), and a sintering aid represented by zLi2O-2(1-z)SiO2(0<=Z<=0.9).

The invention relates to a bimetallic (non-precious metal) catalyst for producing ethyl alcohol through C2 acid ester hydrogenation, and a preparation method and application of the bimetallic (non-precious metal) catalyst. The catalyst is prepared from M1-M2/SiO2, wherein M1 and M2 are one of non-precious metal Cu, Co and Ni oxides, the molar ratio of M1 to M2 is (40:1) to (1:40), and the M1-M2/SiO2 is prepared through a co-ammonia still method. The catalyst can highly selectively convert C2 acid ester into the ethyl alcohol under the reaction conditions that the temperature is 150-250 DEG C,the hydrogen pressure is 1-5 MPa, the liquid air speed is 0.1-0.8 h<-1>, and the molar ratio of hydrogen to the C2 acid ester is 100-300.

The invention discloses an ozone catalytic oxidation composite catalyst, which comprises a carrier, an active component and an auxiliary agent, the carrier comprises gamma-Al2O3, the active component is an oxide of Fe, Cu and Ni, and the auxiliary agent is a Ce oxide. In the active component, the mass ratio of Fe oxide to Cu oxide to Ni oxide is 1: (1.5-6): (1.5-6); the mass of the auxiliary agent Ce oxide is 25-85% of the mass of the active component Fe oxide; the loading capacity of the active component metal oxide is 5-10% based on the total mass of the catalyst. The ozone catalytic oxidation catalyst provided by the invention has the advantages of easily available raw materials, low cost and simple preparation method, and can effectively treat high-concentration coking wastewater, and the COD removal rate can reach 83%.

The invention discloses a method for preparing an N-doped porous carbon coated Mn-Co-Ni oxide core-shell structure electrode material, which comprises the following steps: (1) dissolving a manganese source, a cobalt source and a nickel source in a solvent I to obtain a mixed solution; (2) performing spray pyrolysis on the mixed solution, and collecting to obtain precursor powder; (3) uniformly mixing the precursor powder, a doping agent, a carbon and nitrogen source and an oxidizing agent in a solvent II, and then performing vacuum drying to obtain a product; and (4) carrying out high-temperature calcination on the product under protective gas to obtain the N-doped porous carbon coated Mn-Co-Ni oxide core-shell structure electrode material. The material has a special core-shell structure and a relatively large specific surface area, is high in specific capacity and good in stability, is beneficial to relieving volume expansion and permeation and diffusion of electrolyte, and is convenient for transmission of lithium ions.

The invention discloses a nickel-zinc ferrite material and a preparation method thereof. The nickel-zinc ferrite material comprises main components and auxiliary components, wherein the main components consist of the following components in percentage by mole: 48%-51% of Fe oxide, 12%-18% of Ni oxide, 15%-23% of Zn oxide and 4%-7% of Co oxide, with the balance being Cu oxide; and the auxiliary components comprise a Mn compound and a Ca compound. The nickel-zinc ferrite provided by the invention has the characteristics of wide applicable frequency range, high magnetic conductivity peak frequency, small specific loss coefficient, high saturation magnetization, low coercive force and high Curie temperature, and presents wide application prospects.

The invention discloses a composite catalyst for coking wastewater treatment, the composite catalyst comprises a carrier, an active component and an auxiliary agent, the carrier comprises gamma-Al2O3, the active component is an oxide of Fe, Cu and Ni, and the auxiliary agent is a Cd oxide. In the active component, the mass ratio of Fe oxide to Cu oxide to Ni oxide is 1: (1.5-7): (1.5-7); the mass of the auxiliary agent Cd oxide is 20-70% of the mass of the active component Fe oxide; the loading capacity of the active component metal oxide is 5-10% based on the total mass of the catalyst. According to the composite catalyst for coking wastewater treatment, the raw materials are easy to obtain, the cost is low, the preparation method is simple, high-concentration coking wastewater can be effectively treated, and the COD removal rate can reach 85%.

A low-cost and easy-to-fabricate mixed e⁻ and CO₃²⁻ conducting membrane for advanced high-flux and selective electrochemical CO₂ separation from flue gas is provided. The membrane includes a CO₃²⁻-conducting molten carbonate phase and an e⁻-conducting lithiated Ni-oxide interphase that can be formed in situ during operation. The membrane exhibits a CO₂ flux density greater than 0.8 mL/(minute·cm²) at 850° C. with a selectivity ranging from about 100 to about 500 and excellent stability for up to about 450 hours. Further, the self-formed interphase Li_0.4Ni_1.6O₂ is highly electron conducting and can provide electrons to the co-reduction of CO₂ and O₂ into CO₃²⁻. Such a membrane is an alternative to the conventional “size-sieving” inorganic and “dissolution-diffusion” organic counterparts for CO₂ capture from flue gas.

The invention discloses an ozone catalytic oxidation catalyst, which comprises a carrier, an active component and an auxiliary agent, the carrier comprises gamma-Al2O3, the active component is an oxide of Fe, Cu and Ni, and the auxiliary agent is a Co oxide. In the active component, the mass ratio of Fe oxide to Cu oxide to Ni oxide is 1: (1.5-6): (1.5-6); the mass of the auxiliary Co oxide is 30-80% of the mass of the active component Fe oxide; the loading capacity of the active component metal oxide is 5-10% based on the total mass of the catalyst. The ozone catalytic oxidation catalyst provided by the invention has the advantages of easily available raw materials, low cost and simple preparation method, and can effectively treat high-concentration coking wastewater, and the COD removal rate can reach 80%.