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115results about How to "Efficient and stable" patented technology

Bipolar electrochemical battery of stacked wafer cells

The bipolar electrochemical battery of the invention comprises:
    • a stack of at least two electrochemical cells electrically arranged in series with the positive face of each cell contacting the negative face of an adjacent cell, wherein each of the cells comprises
    • (a) a negative electrode;
    • (b) a positive electrode;
    • (c) a separator between the electrodes, wherein the separator includes an electrolyte;
    • (d) a first electrically conductive lamination comprising a first inner metal layer and a first polymeric outer layer, said first polymeric outer layer having at least one perforation therein to expose the first inner metal layer, said first electrically conductive lamination being in electrical contact with the outer face of the negative electrode; and
    • (e) a second electrically conductive lamination comprising a second inner metal layer and a second polymeric outer layer, said second polymeric outer layer having at least one perforation therein to expose the second inner metal layer, said second electrically conductive lamination being in electrical contact with the outer face of the positive electrode; wherein the first and second laminations are sealed peripherally to each other to form an enclosure including the electrodes, the separator and the electrolyte.
Owner:ELECTRO ENERGY

Full-water-electrolysis catalyst, and preparation method and application thereof

The invention provides a full-water-electrolysis catalyst, and a preparation method and an application thereof. The preparation method of the catalyst comprises the following steps: 1) carrying out aheating reaction on oxidized three-dimensional foamed nickel and a first part of a phosphorus source according to a mass ratio of 1:(3-20) to generate a Ni2P film on the three-dimensional foamed nickel carrier; and 2) mixing a product obtained after the reaction in step 1), a cobalt salt and a nickel salt having a molar ratio of (1-3):1, an alkali source and water, carrying out hydrothermal treatment on the obtained mixture, washing and drying the hydrothermal treatment product to obtain a product A, and carrying out a heating reaction on the product A and a second part of the phosphorus source according to a mass ratio of 1:(3-20) to realize secondary phosphorization in order to obtain the full-water-electrolysis catalyst. The catalyst can be used for electrolyzing water. The preparationmethod improves the stability and the activity of the catalyst through Ni2P with a strong binding force with a carrier, in situ growing on the foamed nickel structure, by primary phosphorization and forming a defect interface by loading. The catalyst has a high stability and a high activity when used for electrolyzing water.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

High-efficiency bimetallic nickel molybdenum selenide electro-catalytic material and preparation method thereof

The invention discloses a preparation method of an efficient bimetallic nickel-molybdenum selenide electrocatalytic material. The preparation method comprises the following steps: preparing a nickel-molybdenum mixed solution according to a molar ratio of nickel to molybdenum of (1-3):(1-3); transferring the nickel-molybdenum mixed solution into a reaction container containing foamed nickel, carrying out solvent heat treatment, taking out the foamed nickel, and carrying out vacuum drying to obtain an in-situ grown nanowire precursor; and covering the nanowire precursor with selenium powder, carrying out primary calcination in an argon-hydrogen mixed atmosphere at 300-500 DEG C, cooling the calcined product, and carrying out secondary calcination in an inert atmosphere at 300-500 DEG C to obtain the nickel-molybdenum bimetallic selenide material NiSe-MoSe2 / NF after phase change. The bimetal nickel molybdenum selenide electro-catalytic material prepared by the invention is of a nanowire structure obtained by in-situ growth, can be directly used as a working electrode and has a large specific surface area; the catalyst has extremely low overpotential for hydrogen production by electrocatalytic water reduction and oxygen production by oxidation, and has good stability.
Owner:CENT SOUTH UNIV

Blade coating structure for modified efficient perovskite solar cell, and preparation method

The invention belongs to the technical field of material science and engineering energy device optimization, and discloses a blade coating structure for a modified efficient perovskite solar cell, anda preparation method. NiOx is used for replacing PDEOT:PSS (Poly(3,4-ethylene dioxythiophene): poly(styrenesulfonate)) to carry out the interface optimization of the solar cell device, and is subjected to spin coating to conductive glass; dimethyl sulfoxide and dimethyl formamide are added into the precursor solution of perovskite, the ratio of DMSO (dimethyl sulfoxide) to DMF (Dimethyl Formamide) is regulated and controlled, and perovskite solution solvent is optimized; the solar cell device is coated with the perovskite solution by a blade coating method at an environment temperature; and afullerene derivative BCPM ([6,6]-phenyl-C61-butyric acid methyl ester) BCP (block copolymer) is coated n sequence, a sliver electrode is plated to prepare the PSC (Perovskite Solar Cell). Through themodification of solvent in the perovskite solvent and the change of a hole transport layer interface material, the efficiency of the perovskite solar cell is theoretically improved. Meanwhile, the preparation method adopts scraper coating, so that preparation speed and operation convenience are greatly improved.
Owner:SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

Self-suspending artificial heart

The invention discloses a self-suspending artificial heart. A rotor rotates in a pump body, so fluid is boosted to flow outside along the circumferential direction. The self-suspending artificial heart is characterized in that: the rotor consists of blades of even number; the blades are symmetrically distributed in an axial direction; the blades are connected and fixed by connecting rods; each blade has an approximately cylindrical shape; each blade comprises a flow-receiving surface and a back surface in the flow direction of a medium; and under the condition that the included angles between the upper and lower end surfaces of the rotor and the rotary horizontal plane are more than 0 degree and the condition that the included angle, namely a lower bottom angle, between the lower end surface and the rotary horizontal plane is more than or equal to 0 degree, the clearances between the upper and lower end surfaces of the rotor and the rotor of the pump body decrease progressively from the flow-receiving surface to the back surface. The self-suspending artificial heart has extremely high self-balance and self-adjustment characteristics, can effectively reduce damages to the blood and the formation of thromboses in the artificial heart, strengthen compatibility with the blood, reduce the manufacturing cost, improve the balance of the action forces applied by the blood in the artificial heart onto the rotor in different directions and improve the stability and safety of the rotor in operation.
Owner:钱逸 +1

Vulnerability attack detection system and method based on mimicry defense mechanism, and medium

The invention provides a vulnerability attack detection system and method based on a mimicry defense mechanism, and a medium, and the system comprises an attack detection module which receives data transmitted by external equipment, carries out the temporary storage and transfer of the external data, and forwards the received external data to a mimicry defense module; a mimicry defense module which is used for carrying out input proxy distribution, redundant heterogeneous judgment and external response output on the received external data according to a mimicry defense mechanism, and returninga judgment result to the attack detection module; and a vulnerability judgment module which is used for carrying out information extraction on the detected attack behaviors, obtaining attack source feature information, carrying out attack tracing, establishing a vulnerability detection information base, matching the attack source feature information and carrying out real-time monitoring on inputdata. According to the method, related measures can be taken for maintaining the stability and the safety of the system more efficiently in real time, and a detailed detection report is automaticallygenerated, so that the evaluation requirement of an efficient and stable vulnerability attack detection method is met.
Owner:EAST CHINA INST OF COMPUTING TECH

Method for co-processing arsenic sulfide slag and arsenic-containing smoke in copper smelting

The invention relates to a method for co-processing arsenic sulfide slag and arsenic-containing smoke in copper smelting. The method comprises the following steps that copper, zinc, iron, arsenic and like enter a solution through normal-pressure acid leaching of arsenic-containing smoke, lead is recovered from leaching slag through a lead smelting system, copper in smoke acid leaching liquid is precipitated through sulfuration of the arsenic sulfide slag, ferrous sulfate is added into the solution after copper precipitation, high-stability scorodite is obtained through reaction under the condition of oxygen pressure, the loss of valuable metal in the arsenic precipitation process is small, and the arsenic-removed solution with few impurities can be directly fed to a zinc electrodeposition process to obtain electrodeposited zinc or evaporated and crystallized to obtain a zinc sulfate product. According to the method, the valuable metal recovery rate is high, operation is easy, the problems that the arsenic sulfide slag is low in value and difficult to treat are effectively solved through arsenic sulfide slag sulfuration copper precipitation, and efficient utilization of dangerous solid waste and harmless treatment of arsenic are achieved.
Owner:CENT SOUTH UNIV

Self-adjusting rotor used for conveying blood or conveying shear sensitive fluid

The invention relates to a self-adjusting rotor used for conveying blood or conveying shear sensitive fluid. The rotor rotates in a pump body so that the pressure of the fluid is increased and the fluid flows out along the circumferential direction relative to the flowing direction of a medium, the flowing direction comprises an incident flow face (3) and a back flow face (4), and an upper end face and a lower end face of the rotor are an upper oblique plane and a lower oblique plane; if the rotor is cut along a central axis, an included angle formed by an intersecting line of the upper oblique plane and a section and a rotary horizontal plane is an upper top angle beta, and the beta is more than 0 degree; an included angle formed by an intersecting line of the lower oblique plane and thesection and the rotary horizontal plane is a lower bottom angle alpha, and the alpha is more than or equal to 0 degree; the number of the rotors is even, and the rotors are symmetrically distributed along a rotating shaft; and rotor clearances are formed between the upper end face and the lower end face of the rotor and the pump body, the rotor clearances are the distances from each point on the upper end face and the lower end face to the inner surface of the corresponding pump body, and the rotor clearances from the incident flow face to the back flow face are reduced progressively. The self-adjusting rotor has extremely high self-balancing and self-adjusting properties. When the self-adjusting rotor is applied to an artificial heart, the rotor can reduce the damage to blood corpuscles,improve the compatibility with the blood, and lower the manufacturing cost.
Owner:钱逸

Self-suspending artificial heart

The invention discloses a self-suspending artificial heart. A rotor rotates in a pump body, so fluid is boosted to flow outside along the circumferential direction. The self-suspending artificial heart is characterized in that: the rotor consists of blades of even number; the blades are symmetrically distributed in an axial direction; the blades are connected and fixed by connecting rods; each blade has an approximately cylindrical shape; each blade comprises a flow-receiving surface and a back surface in the flow direction of a medium; and under the condition that the included angles betweenthe upper and lower end surfaces of the rotor and the rotary horizontal plane are more than 0 degree and the condition that the included angle, namely a lower bottom angle, between the lower end surface and the rotary horizontal plane is more than or equal to 0 degree, the clearances between the upper and lower end surfaces of the rotor and the rotor of the pump body decrease progressively from the flow-receiving surface to the back surface. The self-suspending artificial heart has extremely high self-balance and self-adjustment characteristics, can effectively reduce damages to the blood andthe formation of thromboses in the artificial heart, strengthen compatibility with the blood, reduce the manufacturing cost, improve the balance of the action forces applied by the blood in the artificial heart onto the rotor in different directions and improve the stability and safety of the rotor in operation.
Owner:钱逸 +1

Normal-temperature cured water-based polyurethane and preparation method and application thereof

InactiveCN106188474AHigh water resistance and stain resistanceStrong adhesionAntifouling/underwater paintsPaints with biocidesDouble bondChemistry
The invention discloses normal-temperature cured water-based polyurethane and a preparation method and application thereof. The polyurethane is prepared from polyether polyol, fluoride glycol, polyisocyanate, anti-mildew bactericide dimethyl fumarate, diluent, molecular weight modifier, fluorine-containing hydroxyl acrylate monomer, methacrylic acid-2-hydroxypropyl ester, chain extender, neutralizer and coupling agent. By means of the addition polymerization mode of unsaturated double bond containing polyether polyol, polyalkoxy silicon base and fluorine-containing hydroxyl acrylate are chemically bonded into polyurethane chains, novel water-soluble polyurethane resin of a polyalkoxy silicon base fluoro modified acrylic resin-polyurethane interpenetrating polymer networks (IPN) structure is synthesized and is made to have the common advantages of water-based polyurethane paint and polyacrylate emulsion, and the polyurethane is cured at normal temperature, has oil resistance and stain resistance, is suitable for waterproof and anti-foul coating on surface layers of leather, plastic, wood, metal, external walls and the like, and is environmentally friendly, high in industrial practicability and high in economic benefit.
Owner:CHENGDU KAITE ORGANOSILICON NEW MATERIALS TECH

Filter bed breeding system and factory breeding method of buried-dwelling marine organisms

The invention discloses a filter bed breeding system and a factory breeding method of buried-dwelling marine organisms, and belongs to the field of aquiculture. The breeding system comprises a breeding pond, an empty space is arranged at the bottom of the breeding pond, a sand layer filter bed is arranged on the empty space, and a breeding water layer is above the sand layer filter bed; the breeding pond is internally provided with an air-life tube, one end of the air-lift tube communicates with the bottom of the breeding pond, and the other end of the air-lift tube communicates with the breeding water layer; a first oxygen increasing tube is arranged at the bottom of the breeding pond; and a second oxygen increasing tube is arranged at the bottom of the breeding water layer. S and divinghabits of the buried-dwelling marine organisms such as Marsupenaeus japonicus and Babylonia can be satisfied, the problem of bottom substrate changing black during high-density breeding is advantageously solved, the adhesion and purification effect of probiotics are improved, breeding stability is improved, the filter bed breeding system and the factory breeding method of the buried-dwelling marine organisms are suitable for high-density factory breeding of the buried-dwelling marine organisms, and has a good application prospect.
Owner:XIAMEN UNIV

NiCoP-g-C3N4/CdS composite photocatalyst as well as preparation method and application thereof

The invention relates to the technical field of composite photocatalysis, in particular to a NiCoP-g-C3N4/CdS composite photocatalyst as well as a preparation method and application thereof. The method comprises the steps of firstly, preparing pure CdS through a solvothermal method, and preparing g-C3N4 by directly calcining urea, wherein the g-C3N4 and the CdS have proper valence band and conduction band structures; preparing a g-C3N4/CdS heterojunction through a chemical adsorption and self-assembly method; then adding a nickel source, a cobalt source and a phosphorus source into ultrapure water according to the mass ratio of 1: 1: 5; after the mixture is fully stirred and dissolved, adding a prepared g-C3N4/CdS composite material, carrying out uniform ultrasonic treatment, completely evaporating moisture to dryness, and finally, calcining to successfully load granular NiCoP on the surface of the g-C3N4/CdS heterojunction. The color of the composite material is related to the doping amount of NiCoP, the color of the composite material is gradually darkened from grass green along with the increase of the doping amount of NiCoP, the prepared composite photocatalyst is applied to a hydrogen evolution experiment, the hydrogen evolution performance is excellent, the hydrogen evolution rate is more than 23 times that of pure CdS, the repeated utilization rate is high, and the composite photocatalyst has a wide application prospect in the field of photocatalysis.
Owner:ANHUI UNIVERSITY OF ARCHITECTURE

Siphon and electric pump water supply type water intake pump ship

The invention relates to the field of water conservancy equipment, in particular to a siphon and electric pump water supply type water intake pump ship. The siphon and electric pump water supply type water intake pump ship comprises a ship body, an electric pump, a first water intake pipe and a second water intake pipe are fixed to the ship body, the water inlet end of the electric pump is connected with the first water intake pipe, the water outlet end of the electric pump is connected with the second water intake pipe through a connecting pipe, and one end of the second water intake pipe is connected with a siphon. The second water intake pipe is connected with a second valve and a vacuum pump system, the connecting pipe is connected with a first valve, the end, away from the second water intake pipe, of the siphon is connected with a water outlet pipe, and sewage filtering mechanisms used for filtering impurities in water and having an automatic cleaning functionthe are arranged at the ends, deep into the water surface, of the first water intake pipe and the second water intake pipe. An energy capturing mechanism for converting water body fluctuation energy and driving the sewage filtering mechanisms is arranged on the ship body. According to the siphon and electric pump water supply type water intake pump ship, siphon water intake and electric pump water intake are used in a combined mode, electric energy consumption is reduced, the water intake capacity is improved, and the efficient water intake efficiency and stability of the whole water intake pump ship are kept.
Owner:HUNAN ZHONGDA ENERGY SAVING PUMP

Stabilizing agent used for synchronously and efficiently repairing lead and cadmium composite polluted red earth

The invention discloses a stabilizing agent used for synchronously and efficiently repairing lead and cadmium composite polluted red earth and relates to the technical field of resource and environment engineering. The stabilizing agent specific to lead comprises, by soil sample weight percent, 3.3% of a first alkaline substance, 7% of a phosphorus-containing material B, 2% of a second alkaline substance, 0.04% of polysaccharide D, 10% of a sulfur-containing material E, 0.5% of an organic matter containing material F and 0.03% of organic acid G. The stabilizing agent specific to cadmium comprises, by soil sample weight percent, 3.3% of a first alkaline substance, 7% of a phosphorus-containing material B, 2.5% of a second alkaline substance C, 0.1% of polysaccharide D, 2.5% of a sulfur-containing material E, 0.1% of an organic matter containing material F and 0.02% of organic acid G. The stabilizing agent is used for the lead and cadmium composite polluted earth of the red earth quality and has efficient stability for the kind of pollution; through an orthogonal test, the optimal stabilizing time of lead is 24 d; and the synchronous stabling effect of lead and cadmium in the soil is relatively ideal, and the highest stabilizing rate of lead and cadmium are 69.51% and 76.09% correspondingly at the same time through a C-10 group during 24 d.
Owner:JIANGXI ACADEMY OF ENVIRONMENTAL PROTECTION SCI
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