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33results about How to "Promote market applications" patented technology

Vanadium pentoxide with three-dimensional communicated nano network structure and preparation method and application of vanadium pentoxide

The invention relates to vanadium pentoxide with a three-dimensional communicated nano network structure and a preparation method of vanadium pentoxide. The material can be used as an anode active material of a high-power long-life lithium ion battery, the three-dimensional communicated nano network structure is composed of nano rods which are communicated with one another in a staggered manner, wherein the nano rods are 10-50nm in diameter and 20-200nm in length; and the specific volume of the mesopore formed by the three-dimensional communicated nano network structure is 0.1-1.0cm<3>g<-1>. The vanadium pentoxide has the beneficial effects that the vanadium pentoxide with the three-dimensional communicated nano network structure is excellent in circulation stability and high rate capability; when used as a lithium ion battery anode material, vanadium pentoxide has remarkably improved high rate capability and long service life, and is a potential lithium ion battery anode material with high rate capability and long service life. The vanadium pentoxide is simple and economical in process, is abundant in resource, can be put into mass production easily and is very favorable for marketization application.
Owner:WUHAN UNIV OF TECH

Graphene supported SbVO4 nanoparticle composite material and preparation method thereof

The invention belongs to the field of electrochemical technology, and particularly relates to a graphene supported antimony vanadate nanoparticle composite material and a preparation method thereof. The graphene supported antimony vanadate nanoparticle composite material is prepared from the following materials in percentage by mass: 6 to 12 percent of graphene and 88 to 94 percent of antimony vanadate nanoparticles, totaling 100 percent, wherein the antimony vanadate nanoparticles are uniformly attached to a graphene sheet. The method comprises the following steps: separately dispersing NH4VO3 powder in deionized water; then adding antimony trichloride hexahydrate after dissolving, and stirring for uniform dispersion; finally adding a graphene oxide aqueous solution, stirring for uniformdispersion, transferring into a closed reactor for hydrothermal reaction, and washing and drying the crude product obtained. The material has excellent electrochemical performance, and shows high capacity and high rate performance when being applied to lithium ion batteries and sodium ion batteries. The method is simple in process, and easy for mass production.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Pancreas cancer prevention use of polycyclic fused macrocyclic lactam compounds

The invention discloses a pancreas cancer prevention use of polycyclic fused macrocyclic lactam compounds. The structural formula of the polycyclic fused macrocyclic lactam compounds is shown in the description; and in the formula, R1 is OCH3 or H, R2 is Cl or OH, and R3 is OCH3 or H. The polycyclic fused macrocyclic lactam compounds are separated through separating and purifying a fermentation liquid of Streptomyces xiamenensis CGMCC No.4.3534 from mangrove soil. Prepared ikarugamycin and derivatives thereof can inhibit proliferation and vitality of human pancreas cancer cells, and can be used to prepare pancreas cancer prevention drugs.
Owner:SHANGHAI JIAO TONG UNIV

A graphene-supported porous vanadium dioxide microsphere composite material and a preparation method thereof

The invention belongs to the technical field of electrochemistry, in particular to a porous vanadium dioxide microsphere composite material supported by graphene and a preparation method thereof. 8 to20 percent of graphene and 80 to 92 percent of porou vanadium dioxide microspheres, base on 100 percent of that mass of the material; the diameter of porous vanadium dioxide microspheres is 200 - 400nm, and the porous vanadium dioxide microspheres are uniformly adhered to the graphene sheets. The method comprises the following steps: NH4VO3 powder is dispersed in deionized water, HCl is added and stirred until dissolved; then adding hydrazine hydrate, stirring, finally adding graphene oxide aqueous solution, stirring and dispersing, freeze-drying, calcining the obtained precursor at 400-500DEG C for 1-4h under nitrogen, and obtaining the precursor; the composite material has excellent cycle stability and high rate performance when applied to sodium ion batteries. The method has simple process and is easy to be produced on a large scale.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

High-temperature electrothermal coating and preparation method thereof

The invention discloses a high-temperature electrothermal coating and a preparation method thereof. The high-temperature electrothermal coating is prepared from the following components in percentageby mass: 5 to 50 percent of first electrothermal filler, 0 to 10 percent of second electrothermal filler, 10 to 40 percent of high-temperature-resistant adhesive, 0.1 to 10 percent of high-temperature-resistant filler, 1 to 10 percent of dispersing agent, 0.1 to 10 percent of functional additive and the balance of water. The high-temperature electrothermal coating has the advantages of low resistivity, good storage stability, high heating rate, excellent heat conversion efficiency and the like; the heating temperature can reach 200-600 DEG C in a short time, all the component materials are kept stable and not oxidized at the high temperature, it can be guaranteed that the long-term use temperature is about 300 DEG C, the heating condition is evenly distributed, and power decline does not occur after long-term use; in addition, the method for preparing the high-temperature electrothermal coating is simple in process, safe, environmentally friendly, low in cost and suitable for large-scale industrial production.
Owner:SHENZHEN CITY THROUGH SCI & TECH OF NEW ENERGY CO LTD

Bibenzil compounds and extraction method thereof

The invention provides bibenzil compounds of which the chemical name is dihydroresveratrol-4'-O-[6''-O-(4''-methylgalloyl)]-beta-D-glucopyranoside. The extraction method comprises the following steps: after finishing D101 macroporous resin adsorption, eluting sequentially with distilled water and an ethanol solution; carrying out silica gel chromatography on the eluate obtained by eluting with the 75-80 wt% ethanol solution, collecting the eluate by using 400-500mL as one unit, and carrying out separation and extraction on the 10th-unit eluate to obtain a multi-compound extracting solution; and carrying out silica gel chromatography on the multi-compound extracting solution, collecting the eluate by using 40-50mL as one unit, and carrying out separation and extraction on the 3rd-unit eluate to obtain the target compounds. The bibenzil compounds provided by the embodiment of the invention are novel single compounds, have the advantages of high purity, definite component and no impurity, and are obtained by extraction and purification for the first time.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

Miniature ship wall cleaning robot

The invention provides a miniature ship wall cleaning robot which is small in size, light in weight, convenient to carry and capable of cleaning a yacht in daily life, so that the docking cleaning period of the yacht is prolonged and the maintenance cost is reduced. Meanwhile, the ship wall cleaning robot attracts the ship body through the magnets with big attraction force, and works reliably. Cameras and illuminating lamps are arranged on the two sides of the robot, detection and comparison of the ship body before and after cleaning are facilitated, the cost is low, and market application isfacilitated.
Owner:HEBEI UNIV OF TECH

Method for producing expanded graphite carbon nanotube composite material and supercapacitor produced from expanded graphite carbon nanotube composite material

The invention discloses a method for producing an expanded graphite carbon nanotube composite material. The method comprises: 1) heating expandable graphite in an inert gas to obtain expanded graphite; 2) immersing the expanded graphite in a nickel chloride solution; 3) thoroughly removing water from the expanded graphite subjected to the step 2) in a vacuum environment and then transferring the expanded graphite to a vacuum tubular furnace, and exhausting air; 4) inputting the reduction nickel catalyst while heating the tubular furnace, and after the temperature of the tubular furnace reaches the preset temperature, inputting carbon growth source and maintaining the state for a growth period; 5) closing the reduction nickel catalyst and the inputting of the carbon growth source, and obtaining the expanded graphite carbon nanotube composite material through cooling. The present invention also provides a supercapacitor made of the expanded graphite carbon nanotube composite material. The expanded graphite carbon nanotube composite material obtained by the manufacturing method of the invention is effectively increased in specific surface area and charge storage space and low in production cost. The method is simple and adapts to large-scale production and market application.
Owner:LIANCHUANG AUTOMOBILE ELECTRONICS

Coumarins compound and extracting method thereof

The invention provides a coumarins compound. The chemical name is 4-hydroxyphenyl-5-para hydroxyphenylethyl-7-hydroxyl-3,4-dihydrocoumarin. An extracting method comprises the steps that oil tea leaves are extracted in a heating mode and concentrated to obtain a concentrated solution, and the concentrated solution is adsorbed by D101 macro-porous resin, and then eluted sequentially with distilled water and an ethanol solution; silica gel chromatography is carried out on eluant eluted through the ethanol solution, and the eluant is collected with 400-500 mL as one unit; silica gel chromatography is carried out on the second unit of the collected eluant, dichloromethane-methyl alcohol is adopted as a moving phase, the eluant is collected with 90-100 mL as one unit, and after the eluant of the units from 12 to 14 is merged, separation and extraction continue to be carried out to obtain the compound. The coumarins compound is a novel single compound, purity is high, components are definite, no impurity exists, and the compound is obtained for the first time through extraction and purification, which has pioneering significance.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

Manufacturing method of carrier for electrostatic image developer

The invention relates to a manufacturing method of a carrier for an electrostatic image developer, which solves the problems that the existing carrier for an electrostatic image developer has low durability and low adhesion with a coating layer, easily drops and influences the performance of the electrostatic image developer. The method comprises the following steps of: performing hydroxyl enrichment processing on the surface of a carrier core material; and then coating the carrier core material with a coating layer including organic silicon resin so that a condensation reaction is generated between the organic silicon resin and the hydroxyl on the surface of the core material to obtain a carrier coated by the chemical bonding effect. The method provided by the invention has simple technology and low production cost; the coating layer of the carrier manufactured by the method is impact resistant and wear resistant and has great adhesion with the surface of the carrier core material; and the carrier has good durability.
Owner:HUBEI DINGLONG CO LTD

Low-temperature extraction and purification process of botanical pesticide toosendanin

The invention discloses a low-temperature extraction and purification process of botanical pesticide toosendanin, and belongs to the technical field of biology. According to the method, toosendanin is purified at a low temperature, the toosendanin is concentrated to the standard density through vacuum, rapid layering of the toosendan fruit ethanol refined extract is achieved, ethanol extraction is conducted on the upper-layer extract again, efficient extraction of toosendanin is achieved, and the concentration of the obtained toosendanin mother liquor is larger than or equal to 1%. Petroleum ether, chitosan and other components are not used in the whole technological process, pollution and insecurity caused by use of an organic solvent are greatly reduced, the technological process is simplified, the loss of toosendanin is reduced, the production cost of the botanical pesticide is greatly reduced, marketization application of the botanical pesticide is promoted, and wide economic benefits and social benefits are achieved.
Owner:杨化廷 +1

Anodic oxidation antibacterial metal part and preparation method thereof

InactiveCN113136612ADoes not affect the antibacterial and antiviral sustained release effectSmall sizeSurface reaction electrolytic coatingMetallurgySilver particles
The invention discloses an anodic oxidation antibacterial metal part and a preparation method thereof. The anodic oxidation antibacterial metal part comprises a metal piece substrate, an anodic oxidation film, a nano-silver dyeing layer and a nano-silver hole sealing layer, and the anodic oxidation film is obtained by conducting anodic oxidation on the metal piece substrate; the nano-silver dyeing layer is obtained by loading a nano-silver dyeing agent on the anodic oxide film, the nano-silver hole sealing layer is obtained by loading a nano-silver hole sealing agent on the dyeing layer, in the nano-silver dyeing agent and the nano-silver hole sealing agent, the proportion of nano-silver particle antibacterial liquid is 0.01-3%, and the size of nano-silver particles is 0.1-30 nm. The anodic oxidation antibacterial metal part has the advantages of lasting antibacterial and antiviral properties, wear resistance, corrosion resistance, decoration and the like, and in addition, the preparation method of the anodic oxidation antibacterial metal part is simple in process, safe, environmental-friendly, low in cost and suitable for large-scale industrial production and market application.
Owner:深圳吉美瑞科技有限公司

Oil-water separation device for separating and recycling edible oil

InactiveCN106348387APromote oil-water stratificationLow moisture impurity contentFatty/oily/floating substances removal devicesLiquid separationWave shapeEdible oil
The invention discloses an oil-water separation device for separation and recovery of edible oil, which comprises a casing, a feed inlet arranged on one side of the upper part of the casing, and inside the casing, a plurality of choke columns are evenly distributed below the feed inlet. A plurality of blocking columns form a comb column array, and a wave-shaped anti-wave plate is provided between the comb-column array and the water outlet. The upper part of the anti-wave plate is provided with an overflow port. There is a sloping plate below the mouth, and an oil absorbing device with a hydrophobic oil-absorbing sponge is arranged above the sloping plate. The end of the sloping plate is connected to the water outlet, and the oil absorbing device is used to absorb oil on the sloping plate. The oil-water separation device of the present invention can better promote oil-water stratification and separate oil-water. After being absorbed by the oil-absorbing device, the separated oil has a high concentration and very little water impurity content, which greatly reduces the post-treatment of recovered oil. Continuous oil-water separation can be realized, the oil-water separation efficiency is high, and the manufacturing and use costs are relatively low, which is conducive to market application.
Owner:CHENGDU 90 DEGREE IND PROD DESIGN CO LTD

Method for carrying out patterning orientation on liquid crystal elastomer and preparation method of touch display device

The invention provides a method for carrying out patterning orientation on a liquid crystal elastomer and a preparation method of a touch display device. The liquid crystal elastomer is of a cross-linked network structure containing dynamic covalent bonds. The method for carrying out patterning orientation on the liquid crystal elastomer comprises the following steps: orienting at least part of molecular chains in a cross-linked network structure of a liquid crystal elastomer along a preset direction; applying electric heating driving or photo-thermal driving to the liquid crystal elastomer, wherein the electric heating driving mode is that a polyimide electric heating film is arranged on the liquid crystal elastomer, and the photo-thermal driving mode is that a photo-thermal response material is doped in the molecular chain of the liquid crystal elastomer; and heating the pre-oriented molecular chain of the liquid crystal elastomer through electric processing control of the polyimide electrothermal film or optical processing control of the photo-thermal response material, so that dynamic covalent bonds are subjected to an exchange reaction to form a new cross-linked network structure. According to the invention, mechanical processing and batch production of liquid crystal elastomer three-dimensional dynamic structures with different requirements and various complex patterns can be realized.
Owner:TSINGHUA UNIV

Quick preparation method of water glass based fiber reinforced SiO2 aerogel block

The invention relates to a quick preparation method of a water glass based fiber reinforced SiO2 aerogel block. The quick preparation method includes: using industrial-grade water glass as a silicon source, and forming fiber reinforced SiO2 wet gel through sol-gel reaction; performing one-step solvent replacement and surface group modification through mixed liquid of an organic solvent / modifier, and drying at normal pressure to obtain a SiO2 composite aerogel block. Fiber reinforced SiO2 aerogel has physical characteristics like large specific surface area (600-900m2 / g), high pore capacity, high elasticity and super-hydrophobicity (hydrophobic angle range is 120-145 DEG C) and can present excellent mechanical and thermal performance along temperature change, so that application value of the material in the field of photoelectric devices, gas-sensitive sensors and heat insulation. The quick preparation method is simple in process path, high in operability, capable of quickly obtaining large-size uncracked SiO2 composite aerogel materials and conducive to promoting industrial production of aerogel.
Owner:SHANGHAI JIAO TONG UNIV +1

Manufacturing method of carrier for electrostatic image developer

The invention relates to a manufacturing method of a carrier for an electrostatic image developer, which solves the problems that the existing carrier for an electrostatic image developer has low durability and low adhesion with a coating layer, easily drops and influences the performance of the electrostatic image developer. The method comprises the following steps of: performing hydroxyl enrichment processing on the surface of a carrier core material; and then coating the carrier core material with a coating layer including organic silicon resin so that a condensation reaction is generated between the organic silicon resin and the hydroxyl on the surface of the core material to obtain a carrier coated by the chemical bonding effect. The method provided by the invention has simple technology and low production cost; the coating layer of the carrier manufactured by the method is impact resistant and wear resistant and has great adhesion with the surface of the carrier core material; and the carrier has good durability.
Owner:HUBEI DINGLONG CO LTD

Canned actinidia arguta and production method thereof

The invention relates to canned actinidia arguta and a production method thereof and belongs to the technical field of fruit and vegetable products. The canned actinidia arguta is mainly produced by freeze-dried actinidia arguta and white granulated sugar. A production method of the freeze-dried actinidia arguta includes: taking fresh actinidia arguta, removing stems, cleaning, soaking with the aqueous solution of edible cyanine and vitamin C for 48 hours, and performing freeze drying, wherein the condition of the freeze drying can be a conventional experiment condition, and the freeze drying condition is preferably characterized in that the pressure of a drying chamber is 100-110Pa, heating plate temperature is 40-45 DEG C, and temperature falling rate is 0.2 DEG C / minute. The canned actinidia arguta produced by the method has the advantages the freshness of the canned actinidia arguta is close to the fresh actinidia arguta, and the bad taste, caused by long-term storage, of traditional cans can be avoided; the canned actinidia arguta is sufficient in flexibility, and the bad soft taste of fruits soaked for a long time can be avoided; the actinidia arguta is in good shape, bright, full and good in appearance quality.
Owner:DALIAN NATIONALITIES UNIVERSITY

A kind of bibenzyl compound and its extraction method

The invention provides bibenzil compounds of which the chemical name is dihydroresveratrol-4'-O-[6''-O-(4''-methylgalloyl)]-beta-D-glucopyranoside. The extraction method comprises the following steps: after finishing D101 macroporous resin adsorption, eluting sequentially with distilled water and an ethanol solution; carrying out silica gel chromatography on the eluate obtained by eluting with the 75-80 wt% ethanol solution, collecting the eluate by using 400-500mL as one unit, and carrying out separation and extraction on the 10th-unit eluate to obtain a multi-compound extracting solution; and carrying out silica gel chromatography on the multi-compound extracting solution, collecting the eluate by using 40-50mL as one unit, and carrying out separation and extraction on the 3rd-unit eluate to obtain the target compounds. The bibenzil compounds provided by the embodiment of the invention are novel single compounds, have the advantages of high purity, definite component and no impurity, and are obtained by extraction and purification for the first time.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

D-amino acid detection kit and detection method thereof

The invention relates to synthesis of kits, in particular to a D-amino acid detection kit and a detection method thereof. The kit contains D-amino acid enzyme, a 1, 4-benzeneboronic acid solution anda gold nanoparticle solution, wherein the volume ratio is 1: (1-5): (10-20). The kit is simple and easy to operate, can realize green and pollution-free D-amino acid detection, and has potential application value in the research fields of molecular biology, bioanalytical chemistry, marine science, tumor science and the like.
Owner:INST OF OCEANOLOGY - CHINESE ACAD OF SCI

A liquid-cooled battery thermal management system and its control method

The disclosure provides a liquid-cooled battery thermal management system and its control method, including a controller, a refrigeration circuit, and a battery temperature control circuit. The refrigeration circuit includes a compressor, a condenser, and a heat exchanger. The outlet B of one end of the heat exchanger passes through The pipeline is connected to the compressor, the compressor is connected to the condenser through the pipeline, and the outlet of the condenser is connected to the inlet A of one end of the heat exchanger through the pipeline; the battery temperature control circuit includes several liquid-cooled battery boxes, sensors and heaters, and the heat exchanger The outlet D at one end of the exchanger is connected to the heater through a pipeline, and the outlet of the heater is divided into several branches through the pipeline, and each branch is controlled by a separate flow control valve and connected to the corresponding liquid-cooled battery box. One end, the other end of the liquid-cooled battery box is connected to the inlet C of the heat exchanger through pipelines; temperature sensors are installed at the outlet D and inlet C of the heat exchanger; the controller receives the signal collected by the temperature sensor and communicates with the compressor Machine, condenser, flow control valve and heater are electrically connected.
Owner:ZHONGTONG BUS HLDG

Resistance reducing agent for slickwater, and preparation method thereof

The invention discloses a resistance reducing agent for slickwater, and a preparation method thereof. The preparation steps comprise: S1, uniformly mixing acrylamide, 2-acrylamide-2-methylpropanesulfonic acid, dimethyl hexadecyl allyl ammonium chloride and water to form a water-phase reaction solution; S2, uniformly mixing perfluorobutyl ethylene, an emulsifier and white oil to form an oil-phase reaction solution; and S3, uniformly mixing the oil-phase reaction solution and the water-phase reaction solution, adding a water-phase initiator and an oil-phase initiator in a dropwise manner at 40-60 DEG C under an anaerobic stirring condition, and reacting for 3-5 h to obtain the product. According to the invention, the resistance reducing agent can effectively reduce friction resistance, surface tension, interfacial tension and CST ratio, so that the resistance reducing agent has good discharge aiding performance, good anti-swelling performance and good resistance reducing performance, andhas multiple effects; and the resistance reducing agent is simple to prepare and convenient to mix on site, so that the workload of on-site preparation can be effectively reduced, and the good marketapplication and popularization prospects can be achieved.
Owner:CNPC BOHAI DRILLING ENG +1

Water glass based fiber reinforced sio 2 Rapid preparation method of airgel block

The invention relates to a quick preparation method of a water glass based fiber reinforced SiO2 aerogel block. The quick preparation method includes: using industrial-grade water glass as a silicon source, and forming fiber reinforced SiO2 wet gel through sol-gel reaction; performing one-step solvent replacement and surface group modification through mixed liquid of an organic solvent / modifier, and drying at normal pressure to obtain a SiO2 composite aerogel block. Fiber reinforced SiO2 aerogel has physical characteristics like large specific surface area (600-900m2 / g), high pore capacity, high elasticity and super-hydrophobicity (hydrophobic angle range is 120-145 DEG C) and can present excellent mechanical and thermal performance along temperature change, so that application value of the material in the field of photoelectric devices, gas-sensitive sensors and heat insulation. The quick preparation method is simple in process path, high in operability, capable of quickly obtaining large-size uncracked SiO2 composite aerogel materials and conducive to promoting industrial production of aerogel.
Owner:SHANGHAI JIAOTONG UNIV +1

An Airfoil Linear Fresnel Focusing System

The invention belongs to the related technical field of solar concentrating technology, and more specifically relates to an airfoil linear Fresnel concentrating system. The system includes a reflector, four Fresnel lenses and a heat collecting tube, the four Fresnel lenses are arranged above the heat collecting tube, the angle between the first Fresnel lens and the second Fresnel lens is an obtuse angle, The second Fresnel lens is placed horizontally, the third Fresnel lens and the fourth Fresnel lens are mirror-symmetrical to the first Fresnel lens and the second Fresnel lens with respect to the vertical center line of the heat collecting tube, four pieces The Fresnel lens is used to focus the incident light onto the heat collecting tube, and the two reflectors are symmetrically arranged under the heat collecting tube with respect to the vertical centerline of the heat collecting tube, which is used to refract the light through the Fresnel lens but not focus on the heat collecting tube. The light on the heat pipe is reflected on the heat collecting tube. Through the present invention, the reflectivity at the edge of the Fresnel lens is reduced, the uniformity of light collection is improved, and the risk of efficiency and safety problems caused by uneven heat collection is reduced.
Owner:HUAZHONG UNIV OF SCI & TECH

Medium and method for increasing survival rate and achieving high-quality cultivation of dendranthema zawadskii tissue culture seedlings

InactiveCN110663370AImprove seedling survival rateImprove quality cultivationBiocideGrowth substratesPlant cultivationDendranthema zawadskii
The invention discloses a medium and a method for increasing the survival rate and achieving high-quality cultivation of dendranthema zawadskii tissue culture seedlings, and belongs to the technical field of plant cultivation. Components of the medium, including wood chips, peat and pearls, are in a ratio of 2:7:1. The method includes the steps of domestication of the tissue culture seedlings, cleaning of the tissue culture seedlings, culture medium treatment, primary culture treatment, scion harvesting treatment, rooting medium treatment, seedling rooting treatment, and seedling planting treatment. The medium and the method for increasing the survival rate and achieving high-quality cultivation of the dendranthema zawadskii tissue culture seedlings have the advantages that the survival rate of the dendranthema zawadskii tissue culture seedlings is increased, and high-quality cultivation of dendranthema zawadskii is achieved; through the perfect efficient culture medium and the perfectcultivation method for the dendranthema zawadskii, large-scale cultivation and market application of the dendranthema zawadskii are promoted.
Owner:ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES

Graphene composite silicon doped sodium vanadium phosphate composite material and preparation method and application thereof

The invention discloses a graphene composite silicon doped sodium vanadium phosphate composite material. The invention also discloses a preparation method of the graphene composite silicon doped sodium vanadium phosphate composite material, which comprises the following steps: sequentially dissolving a vanadium source, a carbon source, a sodium source, a silicon source and a phosphorus source in deionized water, preparing a precursor by adopting a hydrothermal method, mixing the precursor with graphene, stirring, drying, grinding and calcining to obtain nanoscale Na3V2 (PO4) 3-x (SiO4) x (at) rGO (x is more than 0.01 and less than 0.2) particles. The graphene composite silicon doped sodium vanadium phosphate composite material prepared by the invention is in a nano-particle shape, shortens the sodium ion migration path, increases the contact area between an electrode plate and an electrolyte, and improves the conductivity of the material, expands the ion migration channel and enhances the stability of a battery by means of doping and compounding with graphene; and the electrochemical performance of high capacity and long cycle life is shown in a battery test.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Zinc bismuth tellurium heterogeneous phase change nanowire material and its preparation method and application

ActiveCN107359239BGood phase change storage performanceIncrease contentMaterial nanotechnologyElectrical apparatusHeterojunctionNanowire
The invention relates to a zinc-bismuth-tellurium heterogeneous phase-change nanowire material and its preparation method and application. The material has an inner and outer two-layer structure, and the outer layer is made of ZnBi 2 Te 3 Nanosheets or nanorods are stacked, and the inner layer is composed of Zn nanowires. The preparation method is characterized by using the solid-liquid-gas (VLS) method, placing Zn powder on Bi 2 Te 3 The front end of the powder, so that Zn nanowires are formed first, and then ZnBi is grown on the Zn nanowires 2 Te 3 nanosheets or nanorods to form the overall Zn / ZnBi 2 Te 3 Heterostructured nanowires. Compared with the prior art, the invention can be used as the key material of the phase change memory with high thermal stability and low PCRAM operation power consumption.
Owner:TONGJI UNIV

Novel submerged fixed-focus disk type solar heat and power combined supply system

The invention relates to the technical field of solar photo-thermal energy utilization accessory devices, in particular to a novel submerged fixed-focus disk type solar heat and power combined supplysystem which is simple in structure, small in occupied area and low in cost. The novel submerged fixed-focus disk type solar heat and power combined supply system comprises a reflecting system, a driving system, a thermotechnical system, an electrical system and a control system. The reflecting system comprises a mirror frame, a reflecting mirror and a mirror bracket. The driving system further comprises a hydraulic driving assembly, a pitching wheel set, a horizontal wheel set, horizontal rails and a pitching rail. The thermotechnical system comprises a support and a heat absorber. The electrical system further comprises a power supply and distribution device and an electrical control device. The control system further comprises a sensor and a control computer.
Owner:北京环宇健成科技有限公司

Recombination H1N1 subtype swine flu bivalent inactivated vaccine and preparation method and application thereof

The invention discloses a recombination H1N1 subtype swine flu bivalent inactivated vaccine and further discloses a preparation method and application of the recombination H1N1 subtype swine flu bivalent inactivated vaccine. The recombination H1N1 subtype swine flu bivalent inactivated vaccine comprises a European avian origin H1N1 subtype swine flu virus and a classical H1N1 subtype swine flu virus antigen. According to the recombination H1N1 subtype swine flu bivalent inactivated vaccine, the high valence of a serum hemagglutination inhibition (HI) antibody, a neutralizing antibody and a specific (IgG) antibody can be generated by inducing the body, and 100% immune protection can be provided for attacking of European avian origin and classical H1N1 subtype swine flu viruses.
Owner:SHANGHAI VETERINARY RES INST CHINESE ACAD OF AGRI SCI
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