78results about How to "Increase active point" patented technology

The invention discloses a transitional metal oxide/nitrogen-doped ordered mesoporous carbon composite material and a preparation method thereof. The preparation method comprises the following steps: carrying out inert gas calcining and removing a template to obtain nitrogen-doped ordered mesoporous carbon first by taking a mesoporous molecular sieve SBA-15 as the template, a saccharide carbohydrate as a carbon source and urea and hexamethylenetetramine as a nitrogen source; and then adding a transitional metal salt solution and introducing inert gas to calcine to obtain the transitional metaloxide/nitrogen-doped ordered mesoporous carbon composite material. The preparation method disclosed by the invention is low in cost and easy to operate. The nitrogen-doped ordered mesoporous carbon prepared by the method is clear in pore, proper in pore diameter and large in specific surface area, and nanoparticles of the transitional metal oxide are uniformly distributed and high in capacity. Thetransitional metal oxide/nitrogen-doped ordered mesoporous carbon composite material is excellent in electrochemical property and has a wide market prospect in the fields such as catalysts, electricity and heat conduction and energy-storage materials.

The invention provides a magnesium oxychloride fiber light wallboard, and relates to the wallboard field in the construction materials. The wallboard is composed of the following components in parts by weight: 40 to 60 parts of magnesium chloride water solution, 20 to 30 parts of magnesium oxide, 0.1 part of fly ash, 0.2 part of slag, 0.5 part of construction waste, 0.1 part of waste ceramic, 2 parts of short glass fiber, 2 parts of straw, 2 parts of saw dust, 3 parts of perlite, and 0 to 2 parts of modifier. The formula of the wallboard comprises industrial and agricultural wastes such as fly ash, slag, mineral slag, construction wastes, broken ceramics, straws, and saw dust, thus the wastes are fully recycled and reutilized, and moreover the using amount of sands and stones is reduced, so the destroy on mountain and river bed is avoided, resources are saved, and environment is protected. The prepared magnesium oxychloride fiber light wallboard has the advantages of good water resisting property, high compressive strength, good freeze resisting performance, good acid/alkali resistant property, no halogen appearance, no scumming, and no deformation.

The invention relates to a hydrofining catalyst of diesel oil, comprising a carrier and active constitutes. The active constitute is one or more of the VIB group metals and the VIII group metals, wherein, the carrier is composed of one or more of SAPO-5, SAPO-11, ZSM-22 and ZSM-23 molecular sieves which have one-dimensional pore canals, and gamma-Al2O3. The invention further discloses a preparation method of the catalyst on the basis of disclosing the hydrofining catalyst of diesel oil. The hydrofining catalyst prepared by the method in the invention can prevent the diesel oil distillates from cracking, realize the aromatics hydrogenation saturation of poor quality diesel oil, and simultaneously effectively realize the desulfuration and denitrification of poor quality diesel oil.

The invention provides a method for preparing a chromium removal enhancer. The method comprises the following steps: (a) calcining kaolin, mixing the calcined kaolin and an acid solution, performing suction filtration, and washing and drying the obtained solid; (b) mixing the kaolin obtained in the step (a) and an mixed solution, and reacting to obtain the chromium removal enhancer, wherein the mixed solution is a mixed solution of a reducing agent, an antioxidant, an enhancer and water. According to the chromium removal enhancer prepared by the invention, the kaolin is taken as a raw material, the reducing agent, the antioxidant and the enhancer are mixed with the modified kaolin, and the chromium removal enhancer is obtained after the reaction. According to the chromium removal enhancer prepared by the invention, due to dual effects of adsorption and reduction, hexavalent chromium in cement is effectively removed, and physical properties of the cement are improved. The invention also provides the chromium removal enhancer prepared according to the method.

The invention belongs to the field of high polymer materials, and discloses a flame-retardant insect-proof antibacterial mat for a floor carpet.The flame-retardant insect-proof antibacterial mat is prepared from low-density polyethylene, high-density polyethylene, decabromodiphenyl ether, polyethylene resin, zinc stearate, antimonous oxide, polyethylene wax, medical stone, natamycin, beta-cyclodextrin, chitosan, silane coupling agent, traditional Chinese medicine additives, citric acid, foaming agent, monoglyceride and color master batch.The product is a green and pollution-free product and has high flame retardance and good insect-proof and antibacterial performance, can restrain breeding of viruses, insects, mites, ants and the like for a long time, can effectively protect the floor carpet, and is harmless to human bodies and free of hidden health and safety dangers in the use process.

The invention discloses a preparation technology of a nitrogen-doped mesoporous carbon composite metal oxide electrode material for a supercapacitor, wherein the preparation method comprises the following steps of firstly, taking a mesoporous molecular sieve SBA-15 as a template agent, taking carbohydrate as a carbon source, and taking urea and hexamethylenetetramine as a nitrogen sources, performing calcining by inert gas, and removing the template agent to obtain nitrogen-doped mesoporous carbon; then, adding a metal salt solution, introducing inert gas for calcining to obtain a nitrogen-doped mesoporous carbon composite metal oxide composite material; and then mixing the material with polytetrafluoroethylene (PTFE) ) and the carbon black and then performing coating, pressing and dryingto obtain the nitrogen-doped mesoporous carbon composite metal oxide electrode material for the supercapacitor. The preparation method disclosed by the invention is low in cost and simple and convenient to operate. The nitrogen-doped mesoporous carbon prepared by the method disclosed by the invention is clear in pore passage and appropriate in pore size, the specific surface area is large, the distribution of the transition metal oxide nano particles is uniform, and the loading capacity is large. The electrochemical performance of the nitrogen-doped mesoporous carbon composite metal oxide electrode material is excellent, so that the electrode material has a wide market prospect in the field of energy storage materials such as supercapacitors and the like.

The invention discloses an outsole sizing material for a pair of protective boots. Raw materials of the outsole sizing material comprise chloroprene rubber, butadiene-acrylonitrile rubber, styrene-butadiene rubber, a composite accelerator, organic montmorillonite, N-methylene carboxyl-2-benzothiazole sulfenamide, sulphur, high aromatic hydrocarbon oil, ethylene thiourea, mica powder, low-temperature calcined kaolin, diethylene glycol, an anti-aging agent, a liquid ethylene-propylene-terpolymer and a flame retardant. All the components are synergistic, compatibility is good, interface bonding strength is strong, insulating effect is excellent, flame retardant property is excellent, and high-low temperature resistance and waterproof and antiskid properties are relatively good, acid and alkali resistance, oil resistance and corrosion resistance are greatly improved, heat insulating property and permeability are strong, so that the outsole sizing material is soft, wear-resistant and nondeformable and also has comfort and strong generality under the premise that functional requirements are met.

The invention provides a preparation method of a nitrogen and sulfur co-doped graphene oxide grafted polyaniline/MoS2 electrode material. According to the method, graphene oxide is used as a carrier, pyrrole is used as a nitrogen source, thiophene is used as a sulfur source, and nitrogen and sulfur co-doped graphene oxide is obtained through a series of polymerization, activation, pre-oxidation and carbonization; the nitrogen and sulfur co-doped graphene oxide is subjected to acid activation, thionyl chloride modification, p-phenylenediamine modification and aniline polymerization to obtain nitrogen and sulfur co-doped graphene oxide grafted polyaniline; and MoS2 is loaded onto the nitrogen and sulfur co-doped graphene oxide grafted polyaniline through a hot water reaction to obtain the nitrogen and sulfur co-doped graphene oxide grafted polyaniline/MoS2. According to the nitrogen and sulfur co-doped graphene oxide grafted polyaniline/MoS2 electrode, the specific capacitance is larger than 400 F/g under the condition that the current density is 1A/g, and the capacitance is 80% or above of the initial value after the nitrogen and sulfur co-doped graphene oxide grafted polyaniline/MoS2 electrode is recycled 800 times.

The invention discloses a visible-light catalyst of C60 implanted into a mesoporous CdS/TiO2 duct and a preparation method of the catalyst. The method concretely comprises the following steps: firstly, implanting a C60 quantum dot into a CdS/TiO2 duct of an ordered mesoporous structure by adopting an evaporation induced self-assembly method, and then synthetizing the C60 quantum dot-modified CdS/TiO2 light catalyst with the ordered mesoporous structure by using an ion exchange method, wherein the C60 is embedded into a hole wall skeleton of the mesoporous TiO2. The visible-light catalyst has the significant characteristics that 1) the visible-light catalyst has an excellent electron conduction role of C60, photogenerated electrons and cavities are prevented from being compounded again, and the photocatalytic process is facilitated; 2) the C60 is introduced to a semiconductor surface and expected to replace precious metal catalysts such as Pt, so that photocatalytic active points are increased; 3) the preparation method of the composite material is simple. The catalyst has the characteristics of visible-light response and the like, so that the visible-light catalyst has certain application value in the aspects such as photocatalytic water hydrogen production, a solar cell and degradation of environmental pollutants.

The invention discloses a carbon powder reinforced resin based composite friction material and a preparation method thereof. The composite material is prepared from 55% of carbon powder, 30% of cashew nut shell oil modified phenolic resin, 5% of nitrile butadiene rubber, 5% of graphite and 5% of silicon carbide powder, wherein the sum of all the components is 100%. The preparation method comprises the following steps of modifying carbon powder, graphite and silicon carbide powder by using a silane coupling agent, and then, drying; mixing carbon powder, graphite, silicon carbide powder, resin and nitrile butadiene rubber; paving; carrying out compression molding; cooling for molding to obtain the composite material with a certain specification. Meanwhile, the prepared composite friction material is favorable in frictional wear property and wide in application range.

The invention relates to a photocatalyst, in particular to a conjugated polymer photocatalyst for decomposing aquatic hydrogen under visible light. Firstly, urea is heated and melted at 120-160 DEG C,then melamine formaldehyde resin is added, and stirred to form a uniform mixed solution, the uniform mixed solution is cooled to room temperature, ground, heated to 550-750 DEG C at a heating rate of3-5 DEG C /min, and calcined at 550-750 DEG C for 2-4 hours to obtain the porous nitrided carbon-based conjugated polymer photocatalyst; and the prepared porous nitrided carbon-based conjugated polymer photocatalyst is applied to study the decomposition of water to produce hydrogen under visible light.

The invention relates to a whole-component separation system and method for coking flat coal slime, and belongs to the technical field of coal slime separation. The defect of a technology for recycling low ash fine coal from middling coal in the prior art is overcome, and the problem of waste of clay mineral resources such as kaolin in the prior art is solved. The whole-component separation systemfor the coking flat coal slime comprises a middling coal separation operation device which comprises rod mills, a second-section grading cyclone, flotation columns and a first slurry mixing machine.According to the separation method for the coking flat coal slime, middling coal separation operation comprises the following steps that bottom flow coarse particles of a first-section grading cycloneare screened, first-section rod milling, second-section rod milling, slurry mixing, coarse separation and fine separation are conducted to obtain a light product and heavy product flotation waste coal, and the light product serves as a middling coal product to be discharged to complete coking flat coal slime middling coal recovery. According to the whole-component separation system and method forthe coking flat coal slime, whole-component separation of the coking flat coal slime can be achieved.

The invention relates to a three-layer-structured polyaniline@molybdenum disulfide@ferriferrous oxide composite nanowire wave-absorbing material and a preparation method. The method comprises: reacting sodium molybdate with an aniline monomer to obtain polymolybdate nanowire, carrying out an in-situ polymerization reaction to obtain uniform polyaniline@polymolybdate nanowire, growing a molybdenumdisulfide sheet layer on polyaniline nanowire in a vertical self-assembly manner through a hydrothermal reaction, and modifying the surface of polyaniline@molybdenum disulfide composite nanowire withferriferrous oxide ferromagnetic nanoparticles. The impedance matching performance of the polyaniline@molybdenum disulfide@ferriferrous oxide composite material is improved, the magnetic loss of magnetic nanoparticles is fully utilized, and the microwave-absorbing performance of the composite material is improved.