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54results about How to "Reduce vacancy" patented technology

Method for preparing prussian blue material through composite reduction of graphene oxide, and application

The invention relates to a method for preparing a prussian blue material through reduction of graphene oxide, and application. The preparation method comprises the steps of ultrasonically dispersing the graphene oxide into a sodium ferrocyanide water solution, adding ascorbic acid for resisting oxidation, adding sodium citrate for reducing a reaction rate, dropwise adding hydrochloric acid for adjusting the solution to be acidic, heating and stirring for reacting under the inert gas protection to obtain a material, washing, vacuum drying, and carrying out microwave irradiation for reducing thegraphene oxide to obtain the product. When the prussian blue material prepared through composite reduction of the graphene oxide provided by the invention is used as a sodium-ion battery anode, the specific capacity, the cycle performance and the rate capability of a battery are greatly improved, the charge and discharge specific capacity of the battery in an organic system reaches up to not lessthan 153mAh.g<-1>, and the specific capacity of the battery in a water system single platform reaches up to not less than 81mAh.g<-1>; the preparation method is low in cost, fast, simple, and favorable in application prospect.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL

Preparation method and application of in-situ carbon-compounded prussian blue type compound thin film

The invention discloses a preparation method and application of an in-situ carbon-compounded prussian blue type compound thin film. The preparation method comprises the following steps: (1) carrying out ultrasonic dispersion on carbon materials in a NaCl solution; (2) weighing transition metal cyano complexes, a reducing agent and inorganic acid in a ratio and adding into the solution; (3) electrolyzing for 3-5 minutes in water to clean the surface of an ITO conducting substrate; and (4) generating the in-situ carbon-compounded prussian blue type compound thin film on the ITO conducting substrate under a constant-voltage condition relative to voltage from -2.0V to 2.0V of a standard Ag/AgCl electrode. According to the preparation method and the application, the film is formed in one step, the preparation method is rapid and simple and low in cost and the electrical conductivity of the obtained compound material is greatly improved; and the content of sodium is high, and vacancy and the water content are low. As a sodium-ion battery positive electrode material, the material has the characteristics of high specific capacity, high cycling stability, excellent rate performance and the like, and has a bright prospect in large-scale development and application of sodium-ion batteries.
Owner:ZHEJIANG UNIV

Method for preparing epoxy novolac nanometer anticorrosive paint

The invention discloses a method for preparing epoxy novolac nanometer anticorrosive paint. The epoxy novolac nanometer anticorrosive paint is prepared from a first component and a second component, wherein the first component comprises, by mass, 8-10% of epoxy resin, 16-20% of phenolic resin, 15-20% of mixed solvent, 1-2% of nano-particles, 0.2-0.5% of coupling agent, 5-8% of zinc phosphate, 40-45% of filler and 1.5-3% of auxiliary, and the second component comprises, by mass, 45-55% of Versamine I-70 type curing agent, and 45-55% of mixed solvent. The first component and the second component are evenly mixed according to the mass ratio of 10:4-5 to prepare the epoxy novolac nanometer anticorrosive paint. By the adoption of the novel nano-modification components, intermolecular gaps and vacancy of paint coatings can be reduced, the paint coatings can be bonded more tightly, and the corrosion resistance of the paint coatings is effectively improved.
Owner:陈曦

Interface type atomic memristor and preparation method thereof

The invention discloses an interface type atomic memristor and a preparation method thereof. The memristor structurally comprises a sandwich structure with a bottom electrode / dielectric layer / top electrode on a substrate and a protective layer at the topmost part, the bottom electrode is made of inert metal materials such as platinum, gold and palladium, and flexible conductive materials such as indium tin oxide, graphene and other semimetal type two-dimensional atomic crystal materials or semiconductor type two-dimensional atomic crystals. The top electrode is made of active metal materials such as silver, copper, titanium, tungsten and titanium nitride; the dielectric layer is composed of a two-dimensional atomic crystal material, and the surface of the two-dimensional atomic crystal material is subjected to oxidation treatment; the substrate comprises silicon oxide, silicon nitride, aluminum oxide, polyimide or polydimethylsiloxane. The memristor provided by the invention has the characteristics of large switching ratio, low switching voltage, stable resistance state and excellent cycle durability by utilizing the atomic-level interface effect of the specific two-dimensional atomic crystal surface oxide layer and the active metal top electrode and has a wide application prospect.
Owner:HUAZHONG UNIV OF SCI & TECH

Apparatus for vertical pulling growth of CdZnTe monocrystals, and method thereof

The invention discloses an apparatus for the vertical pulling growth of CdZnTe monocrystals, and a method thereof. The apparatus comprises a tubular furnace body, a quartz ampoule and a graphite boat, the furnace body comprises synthetic furnaces, buffer furnaces, inclined plane furnaces and Cd source furnaces, the quartz ampoule is arranged in the furnace body, the graphite boat is arranged in the quartz ampoule. The method for the vertical pulling growth of CdZnTe monocrystals through adopting the apparatus generally comprises the following steps: uniformly putting a high-purity Te raw material, a high-purity Zn raw material and a high-purity Cd raw material in the graphite boat according to synthetic proportions, putting a small amount of Cd at the bottom of the quartz ampoule, slowly putting the graphite boat on the baffle board of the quartz ampoule, carrying out vacuumizing tube sealing, putting the quartz ampoule in the tubular furnace body to make the graphite boat in the middle of the synthetic furnaces, controlling conditions for synthesizing polycrystals, controlling the temperature distribution of the furnace body, slowly upward moving the furnace body until crystallization finishing, and carrying out vertical pulling growth to obtain the CdZnTe monocrystals. According to the invention, CdZnTe polycrystals are synthesized without using other rocking furnaces; and the obtained CdZnTe monocrystals have the advantages of uniform crystal ingot component, less twin crystals, and less Te precipitation or inclusions.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI

Geomagnetism-based community shared parking space management method and device

The invention provides a geomagnetism-based community shared parking space management method and device for efficiently utilizing idle parking spaces of a community. The method comprises the followingsteps that: 1, a sharing platform module registers registration information of an owner party, a vehicle owner party and a property management party; 2, the parking management module receives geomagnetic sensing signals placed in parking spaces and converts and registers the geomagnetic sensing signals into parking space state information; 3, the sharing platform module receives vehicle owner parking application information containing the parking application time period and executes a matching program; and 4, the sharing platform module calls a payment module to request payment or notify a client module to process according to the change of the parking space state information. Supply demand information of an owner party, a vehicle owner party and a property management party is integrated,and waste of idle parking spaces and non-equivalent use and vacancy of public resources can be greatly reduced.
Owner:中穗科技股份有限公司

Near ultraviolet excited charge compensation type red-light phosphate light emitting material and preparation method thereof

The invention provides a near ultraviolet excited charge compensation type red-light phosphate light emitting material and a preparation method thereof. The near ultraviolet excited charge compensation type red-light phosphate light emitting material chemically consists of Sr2-2xP2O7:xEu<3+>, xM<+>, wherein Eu<3+> is a light emitting center; M<+> is a charge compensation agent; M=Li, Na or K; and x=0.02-0.16. Na<+> is a charge compensation agent with the optimal property and can improve the emission intensity and the chromaticity of red light to the maximum extent. The preparation method comprises the following steps: by taking a high temperature solid state method, weighing raw materials SrCO3, Li2CO3, Na2CO3, K2CO3, (NH4)2HPO4 and Eu2O3 according to a chemical weighing ratio of target products, uniformly grinding, calcining in the air atmosphere, and performing furnace cooling to the room temperature, thereby obtaining a target product. The preparation method has the characteristics of being simple to operate, sufficient in reaction, applicable to production and the like, and the prepared light emitting material is high in light emission efficiency, high in brightness, good in chromaticity and good in stability.
Owner:SHAANXI UNIV OF SCI & TECH

Parking place management method and device

The invention discloses a parking place management method comprising the steps that parking place leasing information is released when a server receives the parking place leasing information which is transmitted by a first vehicle owner based on a first client side, wherein the parking place leasing information includes the parking place information of the first vehicle owner; when parking place rental information which is transmitted by a second vehicle owner based on a second client side and corresponding to the parking place leasing information is received, license plate number information and rental period information of the second vehicle owner included in the parking place rental information are acquired; and parking place successful leasing information is generated according to the license plate number information and the rental period information of the second vehicle owner and the parking place information of the first vehicle owner. The invention also discloses a parking place management device. The use efficiency of the parking place can be enhanced by the parking place management method and device.
Owner:XIAN IRAIN IOT TECH SERVICES CO LTD

Internet mahjong machine automatic entertainment system

The invention relates to an Internet mahjong machine automatic entertainment system. The Internet mahjong machine automatic entertainment system comprises a mahjong machine shuffling mechanism, a mahjong machine tile carrying mechanism and a mahjong machine operating panel, and further comprises a server, a communication module, an operating panel unlocking controller and a user terminal. A mahjong machine is in communication with the server through the communication module; the user terminal is used for sending request information to the server; the server is used for waiting for the request information sent by the user terminal, generating corresponding user consumption information according to the request information and then sending out the user consumption information; the communication module is used for waiting for and receiving the user consumption information sent by the server in real time, generating a corresponding operation instruction according to the user consumption information and then sending out the operation instruction; the operating panel unlocking controller is used for receiving the operation instruction through a serial port interrupt service program and starting an operating panel key function according to the operation instruction or continuing to wait for the operation instruction. The Internet mahjong machine automatic entertainment system has the advantages of changing a mahjong and chess room operating mode and improving the game experience of players.
Owner:铜陵市恒威包装材料有限公司

Scenic spot clock-in monitoring system and application method thereof

PendingCN113033965AMake the tour more interestingDeepen your understandingDiscounts/incentivesResourcesTimerServer
The invention provides a scenic spot clock-in monitoring system and an application method thereof.The scenic spot clock-in monitoring system comprises a plurality of display clock-in machines, the display clock-in machines are located at scenic spots, each display clock-in machine comprises a mainframe box, a network server and a single chip microcomputer, a touch display screen is installed on the top of each mainframe box, and the network servers are connected with a wireless receiving module through a network; Each single-chip microcomputer is electrically connected with an RAM, an MRAM, the database and a data analysis module, the output end of the wireless receiving module is electrically connected with the input end of the single-chip microcomputer through the data acquisition control module, a GPS positioning module and an antenna are arranged in each single-chip microcomputer, scenic spot map software is installed in the single-chip microcomputer, and clock-in software is installed in each single-chip microcomputer. A clock-in two-dimensional code is arranged on the touch display screen, a timer, a counter, a data storage module, a data statistics module, a data calculation module and a data analysis module are further arranged in the single chip microcomputer, the plurality of display clock-in machines is connected with a network background through a network server, and the network background is provided with a central processing unit.
Owner:QINGDAO HUANGHAI UNIV

Apparatus for vertical pulling growth of CdZnTe monocrystals, and method thereof

The invention discloses an apparatus for the vertical pulling growth of CdZnTe monocrystals, and a method thereof. The apparatus comprises a tubular furnace body, a quartz ampoule and a graphite boat, the furnace body comprises synthetic furnaces, buffer furnaces, inclined plane furnaces and Cd source furnaces, the quartz ampoule is arranged in the furnace body, the graphite boat is arranged in the quartz ampoule. The method for the vertical pulling growth of CdZnTe monocrystals through adopting the apparatus generally comprises the following steps: uniformly putting a high-purity Te raw material, a high-purity Zn raw material and a high-purity Cd raw material in the graphite boat according to synthetic proportions, putting a small amount of Cd at the bottom of the quartz ampoule, slowly putting the graphite boat on the baffle board of the quartz ampoule, carrying out vacuumizing tube sealing, putting the quartz ampoule in the tubular furnace body to make the graphite boat in the middle of the synthetic furnaces, controlling conditions for synthesizing polycrystals, controlling the temperature distribution of the furnace body, slowly upward moving the furnace body until crystallization finishing, and carrying out vertical pulling growth to obtain the CdZnTe monocrystals. According to the invention, CdZnTe polycrystals are synthesized without using other rocking furnaces; and the obtained CdZnTe monocrystals have the advantages of uniform crystal ingot component, less twin crystals, and less Te precipitation or inclusions.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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