7 results about "Cobaltous chloride" patented technology

This invention discloses a sheet-like porous cobalt chloride, a single-crystal cobalt tetroxide, a single-crystal lithium cobalt oxide, and their preparation methods and applications, belonging to the field of battery materials technology. The chemical formula of the sheet-like porous cobalt chloride is M. x Co 1‑x Cl2, 0≤x≤0.5, M is a metallic element other than cobalt; the tap density of this sheet-like porous cobalt chloride is not less than 1 g / cm³. 3 Specific surface area not less than 1.8m² 2 / g、D v10 Not less than 4.5μm, D v50 Not less than 8.5μm, D v90 The diameter is not less than 20 μm. This sheet-like porous cobalt chloride has a high tap density, a large specific surface area and pore volume, and a relatively uniform pore size, which is beneficial to increasing sintering activity. Moreover, when it is mixed with lithium source for calcination, its sheet-like porous structure is also conducive to the uniform diffusion of lithium ions into the bulk phase of the material, making the lithium ion distribution more uniform, which in turn helps to improve the electrochemical performance of the cathode material and the battery.

The invention provides a bidentate cobalt complex containing an imidazo [1, 2-alpha] pyridine group as well as a preparation method and application of the bidentate cobalt complex, and belongs to the technical field of organic chemical synthesis. The structural formula of the bidentate cobalt complex is shown in the specification, and the preparation method comprises the following steps: carrying out bromination reaction and cyclization reaction on 2-methoxy-6-acetylpyridine to obtain a bidentate ligand with methoxy and imidazo [1, 2-alpha] pyridyl, and carrying out demethylation reaction on the ligand to obtain another bidentate cobalt complex with hydroxyl and imidazo [1, 2-alpha] pyridyl. The imidazo [1, 2-alpha] pyridyl-containing bidentate cobalt complexes are prepared from imidazo [1, 2-alpha] pyridyl-containing bidentate ligands, and the two ligands react with anhydrous cobalt chloride respectively to obtain various imidazo [1, 2-alpha] pyridyl-containing bidentate cobalt complexes. The electron effect of the complex is adjusted by changing substituent groups on imidazo [1, 2-a] pyridine groups, then the activity of the complex in catalytic reaction is adjusted, and the complex can be further applied to hydrosilylation reaction of styrene and has very important application prospects.

The invention provides low-sulfur cobaltosic oxide as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a cobaltous sulfate solution and a composite precipitator, and carrying out precipitation reaction to obtain a precursor precipitate; wherein the composite precipitant comprises ammonium bicarbonate and triammonium citrate; and carrying out calcination treatment on the precursor precipitate to obtain the low-sulfur cobaltosic oxide. According to the preparation method, a composite precipitator composed of ammonium bicarbonate and triammonium citrate is adopted, the precipitation process is effectively regulated and controlled through the complexing effect of citrate, and wrapping of sulfate ions in a precursor is reduced, so that low-sulfur cobaltosic oxide with the sulfur content being lower than 50 ppm is stably prepared, and deep removal of the sulfate ions in a product is achieved; moreover, the process avoids the problem that equipment is seriously corroded by a cobalt chloride system, the whole process flow is simple, the conditions are mild, expensive reagents or complex post-treatment are not needed, the cost is low, and industrial large-scale production is easy to realize.

The invention discloses a cobalt-doped manganese dioxide nanosphere modified antibacterial gauze and a preparation method thereof. The antibacterial gauze comprises the following components by weight: 0.2-1 g of potassium permanganate, 0.2-1 g of cobalt dichloride, 10-50 g of deionized water and a proper amount of common gauze. The preparation method comprises the steps of pretreatment, mixing, hydrothermal reaction and washing. The antibacterial gauze tool shows excellent multi-mode multifunctional antibacterial performance, and can be applied to antibacterial dressings of common wounds, burn infection wounds, pressure sores, diabetes mellitus and other acute and chronic disease wounds.

The application belongs to the technical field of transition metal coordination chemistry, and relates to a cobalt complex with ferromagnetic interaction and a preparation method and application thereof. The molecular formula of the cobalt complex is {Co(bim)4[N(CN)2]2} n : wherein bim is 1-allyl imidazole. n The synthesis method of the {Co(bim)4[N(CN)2]2} n includes the following steps: dissolving anhydrous cobalt chloride in anhydrous methanol, adding a bim ligand, stirring, dissolving sodium dicyanamide in water and then adding the sodium dicyanamide into the above solution, filtering after sufficient reaction, and obtaining a red solution. The solution is left to volatilize in air, and the cobalt complex with ferromagnetic interaction can be obtained after several days. The preparation process is safe and simple, controllable and reproducible, and the prepared complex has good stability and high purity. The cobalt ions in the complex have ferromagnetic interaction, and the complex can be used as a molecular-based magnetic material in the field of new high-density information storage equipment.

This invention discloses a method for preparing a CoNiFe-MOF / LDH catalyst for an electro-Fenton system. The method involves dissolving cobalt chloride, nickel chloride, ferrous chloride, and urea and performing a hydrothermal reaction to obtain a CoNiFe-LDH precursor template. This CoNiFe-LDH precursor template is then reacted with the organic ligand 2,3,6,7,10,11-hexahydroxytriphenylene to prepare the CoNiFe-MOF / LDH catalyst. This invention also discloses the application of the CoNiFe-MOF / LDH material as a heterogeneous electro-Fenton catalyst in the degradation of organic wastewater. The catalyst of this invention is a rod-shaped porous nanostructure synthesized via a hydrothermal method, exhibiting excellent electrocatalytic performance. It can efficiently remove antibiotics from the aquatic environment with a high degree of mineralization. A removal rate of 97% can be achieved within 60 minutes, and the mineralization rate remains above 80% within 420 minutes.

The present application relates to the technical field of hypoxia induction model, and particularly relates to a method for establishing a hypoxia induction model by using cobalt chloride, comprising: sequentially exposing a plurality of types of experimental cells to cobalt chloride solutions with a fixed concentration step gradient decreasing for treatment; establishing a relationship network of the hypoxia induction model; inputting target cells and corresponding expected hypoxia types into the relationship network of the hypoxia induction model respectively and outputting predicted optimal treatment conditions and predicted apoptosis rates respectively, wherein, a recommended label of a cell induction parameter of the target cells of the relationship network of the hypoxia induction model is labeled according to a cosine similarity of a gene expression profile; obtaining a measured apoptosis rate; determining a correction instruction according to a deviation amount of the predicted apoptosis rate, including determining a gradient concentration of the concentration decreasing treatment, or determining a number of newly added cycle treatments; and adjusting the relationship network of the hypoxia induction model according to the correction instruction. The present application realizes the improvement of the accuracy of the model output result.