7 results about "Bismuth salts" patented technology

This invention discloses an electrolyte, its preparation method, and its application. The electrolyte comprises a deep eutectic solvent and an electrolyte salt. The deep eutectic solvent includes hydrogen bond acceptors and hydrogen bond donors, with a molar ratio of 1:(0.2-5). The electrolyte salt includes at least one of zinc, aluminum, magnesium, iron, calcium, manganese, cobalt, antimony, or bismuth salts. This electrolyte provides anions and cations that can act on the insertion and extraction of the positive electrode active material of the battery. The electrolyte has a wide voltage range and is a novel electrolyte system using a deep eutectic solvent. When used in aqueous batteries (e.g., with a zinc-containing negative electrode), it can suppress the formation of zinc dendrites, resulting in dendrite-free aqueous batteries with fewer side reactions. The resulting batteries exhibit good cycle stability and high coulombic efficiency.

The invention discloses a preparation method of a bismuth hydroxide ultrathin nanotube catalyst and application of the bismuth hydroxide ultrathin nanotube catalyst in electrocatalytic carbon dioxide reduction, and belongs to the technical field of electrocatalytic reduction. The preparation method of the bismuth hydroxide ultrathin nanotube catalyst comprises the following steps: self-assembling a bismuth source (such as bismuth nitrate) and a ligand (such as hexamethylenetetramine) in an alcohol-water mixed solution containing an amphiphilic polymer to obtain sol with a uniformly dispersed precursor, thereby effectively regulating and controlling the precipitation rate of bismuth salt; and finally realizing controllable growth of bismuth hydroxide into a hollow tubular structure with nanoscale thickness in a subsequent solvothermal reaction. The method is low in cost, simple in process and mild in reaction condition, and the synthesized bismuth hydroxide ultrathin nanotube catalyst keeps high Faraday efficiency in an extremely wide current density range in the process of electrocatalytically reducing carbon dioxide into formic acid (salt) and shows excellent electrochemical performance.

A teat sealant composition free of bismuth salts, a method for preparing the same, and a method for preventing new intra-breast infections or mastitis.

The present invention discloses a process for continuously removing chlorine from the supernatant of the intermediate leaching. The supernatant of the intermediate leaching is used as the solution to be treated. The chlorine removal agent, bismuth oxide, is pickled and activated under high acid conditions. The activated bismuth oxide is added to the elevated tank and continuously and stably added to the supernatant of the intermediate leaching for chlorine removal. An alkali solution is used to adjust the pH of the slurry after chlorine removal. The slurry after pH adjustment is subjected to liquid-solid separation using a filter press. The obtained filtrate is returned to the intermediate leaching thickener of the hydrometallurgical zinc smelting, and the obtained filter residue is subjected to regeneration treatment. An alkali solution is pre-prepared in the alkali solution tank and continuously input into the alkali washing tank, and an alkali washing reaction is carried out with the filter residue under high temperature and high alkali conditions. The alkali washing solution obtained after liquid-solid separation using a filter press is used to recover chlorine, and the obtained alkali washing residue is treated. The alkali washing residue is discharged to the pickling tank for pickling and activation and then reused in the chlorine removal process. By using the present invention, the chloride ions in the supernatant of the intermediate leaching of a hydrometallurgical zinc smelting system with high silicon and low iron can be removed.

The present invention provides an influenza granule for poultry and a preparation method thereof, belonging to the technical field of poultry medicines. After carboxylating multi-walled carbon nanotubes, they are compounded with the composite selenium / germanium polysaccharide obtained by fermenting Flammulina velutipes, Lentinula edodes, Grifola frondosa, and Nostoc commune Vaucher, to prepare a polysaccharide-compounded carbon nanotube. Additionally, the obtained composite selenium / germanium protein is coupled with citric acid and cecropin, complexed with bismuth salts, and then compounded with the polysaccharide-compounded carbon nanotube to prepare the influenza granule for poultry. The influenza granule for poultry prepared by the present invention has high bioavailability, good safety, low cytotoxicity, can effectively inhibit virus replication, reduce the viral load, relieve the symptoms caused by the virus, enhance the immune function of the body, and when used together with an immunogen or a vaccine, can assist the antigen to stimulate the body to produce an immune response and improve the antibody expression level, having broad application prospects.

This invention discloses a high-permeability cobalt-bismuth-nickel micro / nano soft magnetic material and its preparation method. The micro / nano soft magnetic material exhibits high permeability at ultra-high frequencies. The material is micrometer-scale and chain-like. In this invention, different amounts of cobalt, nickel, and bismuth salts, along with an alkali, are uniformly mixed in a reducing solution environment. A certain amount of complexing agent and surfactant are then added to orderly complex the ions through interaction, modifying the surface of the CoBiNi micro / nano particles. The liquid mixture is gradually heated to 150°C. o C-250 o C, hydrothermal reaction for 8-24 hours. This invention has the advantages of simple operation and low cost. The prepared micro-nano soft magnetic materials maintain high permeability in the ultra-high frequency and super-high frequency bands (1GHz-18GHz). After measurement by a vector network analyzer (VNA), the prepared CoBiNi micro-nano particles still maintain a permeability of over 3.00 at ultra-high frequencies of 16.04GHz-16.86GHz, and can reach a maximum of 4.27, which is dedicated to meeting the high permeability requirements of 5G communication materials at specific frequencies.

The present invention relates to a MOF-based NiO@BiFeO3 / C composite material, a preparation method thereof, and an application thereof. The preparation method comprises the following steps: bismuth salts and iron salts are successively dissolved in an alcohol solvent to form a uniform solution, and then an alkaline precipitant is added, and a precipitation reaction occurs in the solution. After suction filtration, washing, and drying, a bismuth ferrite precursor is obtained; nickel nitrate and 1,3,5-benzenetricarboxylic acid are used for microwave-assisted solvothermal method to obtain MOF-Ni; the bismuth ferrite precursor and MOF-Ni are uniformly mixed and then calcined under an inert gas to obtain the MOF-based NiO@BiFeO3 / C composite material; and it is used as an electrode material in a sodium ion battery. In the present invention, a composite material is prepared by mixing a MOF-based material and a bismuth ferrite precursor and then calcining. The uniformly coated organometallic framework material can effectively activate the electrode material during the charge and discharge process of the battery and improve the electrochemical performance.