10 results about "Copper(II) oxide" patented technology

Provided are copper nanoparticles that: (I) have excellent dispersibility in an organic solvent and thus makes a paste containing the copper nanoparticles from which a highly smooth coating film can be formed; and (II) have excellent sinterability at low temperatures. At least a portion of the surface layer of each of the copper nanoparticles coated by a reducing agent is a film that contains copper oxide and optionally contains copper carbonate. The surfaces of the copper nanoparticles are coated with a reducing agent, where the mass carbon concentration is 0.10% to 2.00%.

The invention discloses a CuO / In2O3 two-dimensional porous nanosheet gas sensitive material, a gas sensitive element and application of the gas sensitive element. A mixture of deionized water, ethanol and ethylene glycol is used as a solvent, indium nitrate is used as a precursor, and two-dimensional porous flaky indium oxide is obtained through hydrothermal and calcination treatment. Then, indium oxide is used as a matrix, copper oxide nanoparticles are compounded on the surface, and the CuO / In2O3 composite gas-sensitive material is obtained. The composite gas-sensitive material is a two-dimensional porous sheet, the two-dimensional porous sheet has a large effective surface area, the porous structure provides a rapid and continuous charge transfer channel and a gas diffusion channel, and CuO provides an alkaline site for adsorption of acidic H2S gas, so that the gas-sensitive material can be used as a gas-sensitive material for adsorption of acidic H2S gas. The CuO / In2O3 gas sensor has the advantages of high sensitivity, high selectivity, fast response and low detection limit on H2S gas at room temperature. The CuO / In2O3 composite gas-sensitive material prepared by the invention has a wide application prospect in the aspect of H2S gas detection, and the CuO / In2O3 composite gas-sensitive material is simple in synthesis process, short in synthesis time, low in cost and suitable for mass production.

To provide copper nanoparticles that (I) exhibit excellent dispersibility in organic solvents, thereby forming a highly smooth coating film from a paste containing the copper nanoparticles, and (II) possess excellent sinterability at low temperatures.SOLUTION: In reducing agent-coated copper nanoparticles, at least a part of the surface layer contains cupric oxide and optionally contains cupric carbonate. A surface of the copper nanoparticles is coated with a reducing agent and has a mass carbon concentration of 0.10% or more and 2.00% or less.SELECTED DRAWING: None

The invention discloses application of nano copper oxide, a degradation agent and a method for reducing quinclorac in soil and increasing crop yield. The degradation agent comprises nano copper oxide, bacteroides and menococcus virens. The method comprises the following steps: (1) adding bacteroides and pseudomonas virens into acidic wet soil polluted by quinclorac; (2) adding nano copper oxide into the soil; and (3) planting crops. According to the invention, the nano copper oxide is added into the soil, and cooperates with the synergistic use of bacteroides and chloromeniscus, so that efficient and sustainable degradation of quinclorac is realized, the crop yield is increased, and the dual benefits of pesticide degradation and crop yield increase are realized.

Black IR-reflective or transmissive pigments from which LiDAR-responsive black coatings can be formed, wherein the pigments exhibit similar blackness M to non-IR-reflective carbon black y Values. The CuO particles exhibit small crystallites with a (−111) / (111) reflection intensity ratio of less than 18 nm and less than 1.2. The method of forming the CuO particles includes precipitating CuCO3 or CuCO3 / Cu(OH)2 using an alkaline carbonate as a precipitant and calcining the precipitate at about 300 °C to about 400 °C.

A black IR reflective or transmissive pigment from which LiDAR responsive black coatings can be formed where the pigment displays a Blackness My value similar to non-IR reflective carbon black. The CuO particles display small crystallites of less than 18 nm and an (−111) / (111) reflectance intensity ratio of less than 1.2. A method of forming the CuO particles includes precipitation of CuCO3 or CuCO3 / Cu(OH)2 using an alkali carbonate as a precipitant and calcining the precipitate at about 300° C. to about 400° C.

The application discloses a preparation method of an electrochemical sensor for simultaneously detecting creatinine and uric acid, and relates to the technical field of medical detection. The technical scheme points of the application are as follows: ethanol, ethylene glycol and deionized water are uniformly mixed, then carbon nanotubes and anhydrous copper acetate are uniformly mixed with the mixture, and then the mixture is subjected to hydrothermal reaction, and after the reaction is completed and the mixture is cooled, the carbon nanotube / copper oxide / cuprous oxide nanocomposite is obtained by purification. In the application, the electrochemical sensor prepared by using the copper nanoparticle-related carbon nanocomposite can enhance the electron transmission capacity, thereby improving the electrochemical activity; meanwhile, the application can be used for detecting two biological molecules of creatinine and uric acid, has a low detection limit and a wide detection linear range, the creatinine detection limit is 0.002mM, the detection range is 0.01mM-1mM, the uric acid detection limit is 0.0004mM, and the detection range is 0.001mM-5mM.

The present invention relates to a hybrid structure for sensors comprising copper oxide nanoparticles, a conductive film layer made of stainless steel, and a flexible polymeric substrate. In addition, the invention also discloses a technological process for manufacturing said hybrid structure, which, owing to the specific properties of copper(II) oxide nanoparticles, may be used as the functional and / or sensing part of an electrochemical sensor for applications in a range of industries, including, but not limited to, the medical, food and agricultural sectors.

A manufacturing method described in the present invention provides antimicrobial copper-containing polyurethane foams by embedding microparticles of metallic copper (Cu), cuprous oxide (Cu2O), cupric oxide (CuO), or cuprous iodide (CuI), or combinations thereof, into polyurethane foams, wherein said microparticles are homogenously distributed throughout the formed polymeric matrix of said foam. The method combines these copper-containing microparticles, or polyurethane liquid additive containing these particles, mixed in polyol with isocyanate.

The application discloses application of nano copper oxide, a degradation agent and a method for reducing 2,4-dichlorophenoxyacetic acid in soil and improving crop yield. The degradation agent comprises nano copper oxide, Bacteroides and green curved bacteria. The method comprises the following steps: (1) adding Bacteroides and green curved bacteria into acidic wet soil polluted by 2,4-dichlorophenoxyacetic acid; (2) adding nano copper oxide into the soil; and (3) planting crops. The nano copper oxide is added into the soil, and is used in cooperation with Bacteroides and green curved bacteria, so that the 2,4-dichlorophenoxyacetic acid is efficiently and sustainably degraded, the crop yield is increased, and the dual benefits of pesticide degradation and crop yield increase are realized.