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210 results about "Black phosphorus" patented technology
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Black phosphorus is the thermodynamically stable form of phosphorus at room temperature and pressure, with a heat of formation of -39.3 kJ/mol (relative to white phosphorus which is defined as the standard state). It is obtained by heating white phosphorus under high pressures (12,000 atmospheres).
Infrared detector with Van der Waals complementary barrier structure, preparation method and application
The invention discloses an infrared detector with a Van der Waals complementary barrier structure, a preparation method and an application. The structure of the detector is as follows: a P-type Si substrate is used as a substrate of the detector; growing a SiO2 dielectric layer on the P-type Si substrate; the black phosphorus layer covers the SiO2 dielectric layer and is used as a conducting channel; one end of the molybdenum disulfide layer covers one end of the black phosphorus layer, and the other end of the molybdenum disulfide layer is arranged on the SiO2 dielectric layer; the drain electrode is directly prepared on the other end of the black phosphorus layer and is in contact with the black phosphorus layer; the source electrode is prepared at the other end, not overlapped with the black phosphorus layer, of the molybdenum disulfide layer, and electric connection is achieved through overlapping of the molybdenum sulfide layer and the black phosphorus layer. According to the invention, high-sensitivity room temperature detection, ultra-fast response and sensing of multiple physical quantities such as light intensity, polarization and gas are realized, and the method has an application prospect in a miniaturized, low-power-consumption and multifunctional infrared detection system.
Owner:HANGZHOU INST FOR ADVANCED STUDY UCAS
Negative electrode material and preparation method thereof, electrochemical device and electronic equipment
PendingCN120184193AElectrode carriers/collectorsNegative electrodesCarbon compositesElectrical battery
The invention discloses a negative electrode material and a preparation method thereof, an electrochemical device and electronic equipment. The negative electrode material comprises a black phosphorus-carbon composite material and sodium ions, wherein the black phosphorus-carbon composite material comprises black phosphorus and a carbon material; sodium ions are adsorbed on the surface and / or inside of the black phosphorus-carbon composite material. When a negative plate containing the negative electrode material is applied to an electrochemical device, especially a sodium ion battery, the specific capacity and the cycling stability of the obtained battery can be effectively improved, and the initial coulombic efficiency is improved.
Owner:ENVISION RUITAI DYNAMICS TECH (SHANGHAI) CO LTD +1
Monatomic nano-enzyme loaded with black phosphorus as well as preparation method and application of monatomic nano-enzyme
The invention relates to the technical field of nano materials and biological medicines, in particular to black phosphorus-loaded monatomic nano enzyme as well as a preparation method and application thereof. According to the monatomic nano-enzyme loaded with the black phosphorus, the monatomic nano-enzyme loaded with the black phosphorus takes a black phosphorus nanosheet as a carrier, and a metal simple substance is anchored on the surface of the carrier; wherein the metal elementary substance comprises any one of iron, cobalt and manganese. A metal active center is anchored on a black phosphorus nano-carrier, the catalytic activity of monatomic nano-enzyme and the photo-thermal conversion performance of a black phosphorus nano-material are effectively combined, the anti-tumor effect is jointly enhanced through chemical kinetic catalysis and photo-thermal, in addition, a loaded black phosphorus degradation product is mainly phosphate and has biological safety, and the application prospect is broad. The toxicity problem of the traditional nano-enzyme can be solved; the wide application is facilitated.
Owner:SHENZHEN INT INST FOR BIOMEDICAL RES
A method for preparing highly stable two-dimensional black phosphorus
The present invention provides a method for preparing high-stability two-dimensional black phosphorus. First, a phosphorus source and an iodine source are introduced into a reaction system for preliminary preheating and activation. After being fully activated in the raw material area of the reaction system, they are slowly transferred to the crystal growth area of the reaction system. The phosphorus source and the transport agent flow through the liquid to the catalyst and are fully converted in the intermediate formation area. The converted intermediate slowly moves to the crystal nucleation growth area to begin crystal nucleation and growth. After further sufficient reaction, the crystal nucleation growth point continues to extend and grow, and finally the black phosphorus crystal slowly nucleates and grows in blocks. After the crystal growth is completely cooled to room temperature, the unconverted raw materials are reused until they are finally converted into black phosphorus crystals and tail gas. The tail gas is absorbed and converted into other by-products. The use of high-temperature and high-pressure resistant pipelines can achieve efficient transportation of gaseous phosphorus, thereby extending the growth time of black phosphorus crystals and improving the growth efficiency of black phosphorus crystals.
Owner:HUBEI XINGFA CHEM GRP CO LTD +1
Black phosphorus-based composite material as well as preparation method and application thereof
The invention discloses a black phosphorus-based composite material as well as a preparation method and application thereof, and relates to the technical field of black phosphorus materials. The black phosphorus-based composite material is prepared from the following raw materials: black phosphorus, nano ferroferric oxide and dopamine hydrochloride. The dopamine hydrochloride is subjected to in-situ polymerization to form polydopamine. The obtained black phosphorus-based composite material has a low friction coefficient and an excellent lubricating effect, can be used for preparing a lubricant, for example, as a lubricating additive in lubricating oil or lubricating grease, effectively improves the friction performance of the lubricant, improves the lubricating effect of the lubricant, and is suitable for lubrication of mechanical parts.
Owner:GUANGZHOU MECHANICAL ENGINEERING RESEARCH INSTITUTE CO LTD
Regeneration and activation method of deactivated black phosphorus catalyst
PendingCN120346848ACatalyst regeneration/reactivationChemical recyclingPtru catalystPhysical chemistry
The invention discloses a regeneration and activation method of an inactivated black phosphorus catalyst, and belongs to the technical field of phosphorus chemical new materials. The method comprises the following steps: placing an inactivated black phosphorus catalyst in a high-temperature area of a separator, separating an inert substance on the surface of the inactivated catalyst from the catalyst by controlling a separation temperature gradient in the separator under a vacuum or inert atmosphere sealing condition, then taking out the catalyst, and mixing the catalyst with iodine or an iodine compound, under the sealing condition of vacuum or inert atmosphere, reacting at 400-550 DEG C for 20-120 minutes, and cooling to 200-350 DEG C within 60-120 minutes, so as to realize the activation of the deactivated catalyst; and the activated catalyst has good reaction activity and very high cycle stability.
Owner:KUNMING UNIV OF SCI & TECH +1
Biomimetic nano-delivery system, preparation method therefor, and use thereof
PCT designated stageWO2025208337A1Energy modified materialsInorganic non-active ingredientsBiologyTumor cells
Disclosed is a biomimetic nano-delivery system, comprising an inner core formed from a black phosphorus nanosheet and a drug, and a shell formed from an M1-type macrophage membrane. The biomimetic nano-delivery system has an anti-tumor effect, has a good photothermal effect under the irradiation of a near-infrared laser, and can actively recognize tumor cells and release the drug precisely and efficiently.
Owner:THE THIRD AFFILIATED HOSPITAL OF GUANGZHOU MEDICAL UNIVERSITY (GUANGZHOU SEVERE MATERNAL TREATMENT CENTER GUANGZHOU ROUJI HOSPITAL)
Black phosphorus field-effect tube lead ion detector and use method thereof
The invention belongs to the technical field of lead ion detection, and particularly relates to a black phosphorus field-effect tube lead ion detector and a use method thereof. The detector comprises an insulating substrate, a gate electrode layer, a gate electrode insulating layer, a sensitive layer, a source electrode and a drain electrode. The gate electrode layer is arranged on the insulating substrate, and the sensitive layer is arranged on the gate electrode insulating layer; particularly, the sensitive layer comprises a black phosphorus material, and noble metal particles are arranged on the surface of the sensitive layer. According to the invention, black phosphorus is used as a sensitive material of the field effect transistor, the black phosphorus and lead ions have good chemical matching property, and a stable coordination effect is formed through surface phosphorus atoms and lead ions, so that the conductivity of a channel is obviously changed; in addition, precious metal particles are introduced to the surface of the black phosphorus sensitive layer, so that the selective adsorption capacity of lead ions is enhanced. In a word, high-selectivity and high-sensitivity electrical detection of lead ions can be realized, and a high-performance field-effect tube sensor platform is provided for rapid monitoring of heavy metal pollutants.
Owner:YANAN UNIV
Active cable made of black phosphorus-graphene oxide
The invention relates to the technical field of active cables, in particular to an active cable made of black phosphorus-graphene oxide. The active cable is provided with a plurality of electrical cores, each electrical core comprises a pair of parallel wire assemblies, an outer shielding layer is arranged on the outer side of each wire assembly, and a wire pair shielding layer and a sheath layer are sequentially arranged on the outer side of each outer shielding layer in a sleeving mode; the wire assembly comprises an inner conductor and an inner shielding layer which are coaxially arranged, and the inner shielding layer wraps the outer side of the inner conductor; the inner surface of the outer shielding layer and the outer surface of the inner shielding layer form a cavity, and the cavity is filled with an insulating layer. The inner shielding layer is a black phosphorus-graphene oxide film inner shielding layer. According to the active cable, the inner shielding layer made of black phosphorus-graphene oxide is arranged outside the inner conductor, so that the active cable has the advantages of long-distance transmission, high temperature resistance, good mechanical performance and the like.
Owner:JIANGSU TRIGIANT TECH
Modified resin for composite ink and preparation method thereof
The invention relates to the technical field of printing ink, in particular to modified resin for composite printing ink and a preparation method of the modified resin. 12%-18% of a dynamic covalent bond type fluorosiloxane copolymer; 5%-10% of bio-based degradable polyester resin; 3%-6% of TiO2 (at) SiO2 nanoparticles with a core-shell structure; 0.5%-2% of a pH response color changing material; 2%-5% of temperature-sensitive shape memory microspheres; 0.1%-0.8% of a light-induced isomerization molecular switch; 1%-3% of a biomimetic mineralization enhancer; 0.8%-1.5% of a gradient dispersing aid; 0.8%-2% of a two-dimensional black phosphorus / silver nanowire heterostructure; 1%-3% of a polydopamine modified boron nitride nanosheet; 5%-15% of epoxy functionalized organic silicone oil; 1%-4% of a photoinitiator; 0.5%-2% of an antioxidant / uvioresistant absorbent; 1%-3% of ceramic micro powder; 5%-15% of a high-performance pigment; 0.5%-2% of an infrared reflective additive; 0.1%-0.5% of a molecular sieve drying agent; 0.5%-2% of a self-repairing microcapsule; 2%-4% of hyperbranched polysilsesquioxane; 1%-3% of an efficient ultraviolet screening agent; and the balance of solvent.
Owner:TIANJIN JUSHI NEW MATERIAL TECH CO LTD
High-strength thermal insulation rock wool board and preparation method thereof
The invention belongs to the technical field of rock wool thermal insulation materials, and particularly relates to a high-strength thermal insulation rock wool board and a preparation method thereof. The high-strength thermal insulation rock wool board is prepared from the following raw materials in parts by weight: 65 to 72 parts of basalt, 10 to 15 parts of dolomite, 8 to 12 parts of iron ore, 3 to 8 parts of bauxite, 2 to 5 parts of limestone, 10 to 15 parts of aerogel powder and 4 to 7 parts of binder. The aerogel powder is prepared by the following preparation processes: mixing tetraethoxysilane, ethanol and water, adjusting the pH value to 2.5-4, and stirring under a heating condition to obtain silicon dioxide sol; the preparation method comprises the following steps: dispersing black phosphorene in water to obtain black phosphorene dispersion liquid; and mixing a black phosphorene dispersion liquid with the silicon dioxide sol to form a mixed solution, adjusting the pH value of the mixed solution to 8-10, standing, aging, freeze-drying and grinding to obtain the aerogel powder. The high-strength heat-preservation rock wool board has the advantages of low heat conductivity, low water absorption and excellent mechanical strength.
Owner:SHAANXI HUAYUAN SHANGRUN NEW BUILDING MATERIALS CO LTD
Semi-artificial photosynthetic system for hydrogen production based on escherichia coli, preparation method and application
The invention provides a preparation method of a Cu-Bp / escherichia coli (Cu-BP / E. coli) semi-artificial photosynthetic system for efficient biological hydrogen production. The preparation method comprises the following steps: designing black phosphorus nanosheets doped with copper quantum dots, testing the catalytic performance of Cu-Bp, and testing the hydrogen production performance of the Cu-BP / E. coli semi-artificial photosynthetic system. The system combines Escherichia coli capable of effectively catalyzing hydrogen generation and excellent light absorption performance of inorganic materials, and energy in sunlight is converted into chemical energy. Under the irradiation of visible light with the wavelength range of 420-780 nm and the light intensity of 2000 Wm, the system shows excellent hydrogen production performance, the hydrogen production amount within 5 hours reaches up to 2.12 mmol, and the hydrogen production amount is 2.07 times that of a BP / E. coli system and 2.32 times that of pure escherichia coli. A new path is opened up for the development of the field of biological hydrogen production.
Owner:XIAN MEDICAL UNIV
Preparation method and application of ternary photocatalytic material using black phosphorus as transmission channel
ActiveCN119186614BWater treatment compoundsWater/sewage treatment by irradiationHeterojunctionCarbon nitride
This invention provides a method for preparing a ternary photocatalytic material using black phosphorus as a carrier transport channel. Black phosphorus quantum dots are coated on prepared hollow cerium oxide nanospheres, which are then supported on graphite-phase carbon nitride to form a heterojunction, thereby preparing a van der Waals-like heterojunction ternary photocatalytic material. This van der Waals-like heterojunction material combines the advantages of three two-dimensional materials, using black phosphorus as a carrier transport channel to achieve complementary and synergistic performance, thereby improving the material's photocatalytic performance.
Owner:HUBEI XINGFA CHEM GRP CO LTD
Photoelectric detection heterojunction, photoelectric detection device and preparation method and application thereof
The invention discloses a photoelectric detection heterojunction, a photoelectric detection device and a preparation method and application thereof. The photoelectric detection heterojunction comprises a Van der Waals heterojunction formed by stacking a black phosphorus layer and a second-type Weel semimetal material layer. According to the technical scheme provided by the invention, the Van der Waals heterojunction photodetector based on black phosphorus-second class of Weel semimetal (BP-II WSM) is constructed, and the influence of parameters such as different types of II WSM materials, device structures, external electric fields, excitation light wavelengths and energy on device performances such as detection range, responsivity, response speed, quantum efficiency and detection rate is researched. The BP-II WSM Van der Waals heterojunction infrared photoelectric detector which has the excellent performance of giving consideration to broadband response, especially aiming at far infrared bands, being high in room temperature responsivity, high in response speed and the like is obtained.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
Silicon-based negative pole piece and preparation method thereof
The invention discloses a silicon-based negative pole piece and a preparation method thereof, and relates to the technical field of silicon-based pole pieces. The preparation method comprises the following steps: 1, carrying out oxidation treatment and reduction treatment on black phosphorus and graphene oxide together to obtain a black phosphorus / graphene composite material with a pore structure; 2, the black phosphorus / graphene composite material and nanometer silicon powder are pretreated, then the nanometer silicon powder is coated with the black phosphorus / graphene composite material, and a black phosphorus / graphene nanometer silicon powder material is obtained; step 3, adding the black phosphorus / graphene nanometer silicon powder material into a sodium polyacrylate solution, carrying out stirring reaction, and carrying out freeze drying, grinding and carbonization treatment to obtain a graphite / black phosphorus / graphene nanometer silicon powder material; 4, uniformly stirring and mixing the graphite-black phosphorus / graphene-nanometer silicon powder material, a conductive agent and a binder, and rolling to obtain an electrode film; and attaching the electrode films to the two surfaces of the aluminum foil, and rolling to obtain the silicon-based negative pole piece.
Owner:JIANGYIN NANOPORE INNOVATIVE MATERIALS TECH LTD
Device for efficiently preparing black phosphorus
The utility model discloses a device for efficiently preparing black phosphorus, which belongs to the technical field of phosphorus chemical new materials and comprises a reactor, a reaction area is arranged in the reactor, a charging mechanism is arranged in the reaction area and comprises an outer lining reaction kettle arranged in the reaction area, a first sealing mechanism is arranged on the top surface of the outer lining reaction kettle, and a lining is arranged in the outer lining reaction kettle. A plurality of flat bottom pipes are arranged in the lining at equal intervals, supporting nets are arranged in the flat bottom pipes, a heating resistance wire is arranged in the reaction area, and a second sealing mechanism is arranged outside the reaction area. The supporting net is placed in the flat-bottom pipe, the catalyst is filled in the flat-bottom pipe under the inert atmosphere condition, then the flat-bottom pipe is placed in the lining, and the phosphorus source is evenly distributed at the bottom of the lining. After the filling is completed, putting the whole lining into an outer lining reaction kettle, sealing the outer lining reaction kettle, and carrying out high-temperature heat treatment in a reaction system through accurately controlled temperature; after the reaction is finished, black phosphorus is deposited and grows in an internal flat-bottom tube, and high-quality black phosphorus crystals are obtained.
Owner:湖北宜化化工科技研发有限公司
Synthesis method of phosphorus-doped copper oxide, catalyst and preparation method and application of catalyst
The invention relates to a synthesis method of novel energy-saving phosphorus-doped copper oxide, a catalyst as well as a preparation method and application of the catalyst. The synthesis method comprises the following steps: S100, obtaining copper oxide nanoparticles; s200, obtaining a black phosphorus nanosheet; s300, the copper oxide nanoparticles and the black phosphorus nanosheets are mixed and then subjected to ultrasonic treatment, and phosphorus-doped copper oxide is obtained.According to the method, the phosphorus-doped copper oxide nanoparticle catalyst can be synthesized under the mild condition, and very high methanol oxidation reaction activity and formate selectivity are achieved.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
Preparation method of black phosphorus-gold nano composite material based on ice bath and ultrasonic stripping
PendingCN120586050AEnergy modified materialsPharmaceutical non-active ingredientsFreeze-dryingIce bath
The invention relates to the technical field of nano enzymes, and discloses a preparation method of a black phosphorus-gold nano composite material based on ice bath and ultrasonic exfoliation, which comprises the following steps: step 1, preparing BP sheets: dispersing BP powder in deoxygenated water, and carrying out ultrasonic exfoliation under an ice-water bath condition; carrying out gradient centrifugal separation, and collecting precipitates; carrying out freeze drying to obtain BP nanosheets, and dispersing the BP nanosheets to obtain a BP nanosheet dispersion liquid; step 2, preparation of a composite material: adding a surfactant and a chloroauric acid solution, and performing ultrasonic mixing under a protective atmosphere; and then dropwise adding a NaBH4 aqueous solution, and washing to obtain the composite material. Through cooperation of the black phosphorus nanosheet and the gold nanoparticles, the gold nanoparticles are loaded on the surface of the black phosphorus nanosheet, and the stability of the black phosphorus nanosheet is improved by the gold nanoparticles, so that the composite material has a relatively high photothermal conversion rate, and the composite material has a better photothermal effect than single black phosphorus, thereby realizing photothermal therapy.
Owner:SHIHEZI UNIVERSITY
Method and application of C60-modified black phosphorus-modified aluminum-supported palladium-based catalyst
ActiveCN117258812BPeroxides/peroxyhydrates/peroxyacids/superoxides/ozonidesCatalyst activation/preparationPtru catalystPhysical chemistry
Owner:HUBEI XINGFA CHEM GRP CO LTD +1
3D printing stainless steel material and preparation method thereof
The invention discloses a 3D printing stainless steel material and a preparation method thereof, and relates to the technical field of 3D printing stainless steel materials. The 3D printing stainless steel material comprises the following components in percentage by mass: less than or equal to 0.01% of carbon, less than or equal to 0.02% of silicon, less than or equal to 0.50% of manganese, 14.00-16.00% of nickel, 15.00-18.00% of chromium, 2.50-3.00% of molybdenum, less than or equal to 0.30% of niobium, 0.03-0.06% of cerium, 0.10-0.40% of a graphene material, 0.08-0.10% of a graphene coated black phosphorus composite material and the balance of iron. By preparing the graphene-coated black phosphorus composite material and cooperating with the graphene material and cerium, the comprehensive performance of the 3D printing stainless steel material is effectively improved, and finally a 3D printing product obtains higher strength and longer service life.
Owner:TEPUCHUANG LASER TECHNOLOGY (HANGZHOU) CO LTD
Preparation method of modified black phosphorus quantum dots, non-aqueous electrolyte and sodium ion battery thereof
The application provides a preparation method of modified black phosphorus quantum dots, a nonaqueous electrolyte and a sodium ion battery thereof. The preparation method of the modified black phosphorus quantum dots comprises the following steps: S1, adding ground black phosphorus and nitrogen-containing heterocyclic ionic liquid into a solvent to obtain a reaction solution; and S2, refluxing the reaction solution in an inert atmosphere. The modified black phosphorus quantum dots are obtained by modifying the black phosphorus quantum dots by using the nitrogen-containing heterocyclic ionic liquid. When the modified black phosphorus quantum dots are applied to the nonaqueous electrolyte, the impedance of the sodium ion battery in the cycle process can be reduced, and the high-rate cycle performance and high-temperature cycle performance of the sodium ion battery can be effectively improved.
Owner:ZHUHAI SMOOTHWAY ELECTRONICS MATERIALS +2
Flame retardant smoke suppression coating and its preparation method and application
The present invention discloses a flame retardant and smoke suppressing coating, and a preparation method and application thereof. The raw materials of the coating include the following components in terms of weight percentage: 2-30% gelatin, 1-5% metal oxide functionalized black phosphorus, 5-25% kosmotropic salt, 0.1-2% antibacterial agent, and the balance water; the metal oxide functionalized black phosphorus is prepared by solvent thermal reaction using black phosphorus nanosheets, cobalt salts, ferrous salts and sodium acetate as raw materials and an organic solvent as solvent, and the mass ratio of black phosphorus nanosheets, cobalt salts and ferrous salts is 2:2.5-5:2.5-3.75. The present invention enables the coating to have excellent flame retardant properties through the interaction of the components in the above contents. The limiting oxygen index of the polyurethane foam after coating modification increases from 17.5% to 32.0%; the peak heat release rate increases from 485kW / m 2 Down to 200kW / m 2 ; Peak smoke release rate from 0.30m 2 / s dropped to 0.15m 2 / s; tensile strength increased from 0.8MPa to 1.8MPa.
Owner:STATE GRID ANHUI ELECTRIC POWER CO LTD ELECTRIC POWER SCI RES INST
Black phosphorus / redox graphene composite material and preparation method thereof
The invention discloses a black phosphorus / redox graphene composite material and a preparation method thereof, and the method comprises the following steps: mixing black phosphorus, an amino-containing organic matter and an alcohol, and carrying out mechanical grinding to obtain amino-grafted black phosphorus powder; the preparation method comprises the following steps: reacting redox graphene, a silane coupling agent and alcohol in an alkaline environment to obtain amino-grafted redox graphene powder; black phosphorus powder and redox graphene powder are subjected to a reaction in the environment of a cross-linking agent containing two or more carboxyl functional groups and an auxiliary reagent, the carboxyl-functionalized black phosphorus / redox graphene composite material is obtained, and the heat conduction and flame retardant properties of the composite material are improved.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD RESEARCH INSTITUTE +2
Black phosphorus and chromium-manganese-sulfur heterojunction photocatalytic material and preparation method thereof
The invention discloses a black phosphorus and chromium-manganese-sulfur heterojunction photocatalytic material which comprises a Cd0. 3Mn0. 7S solid solution and black scales loaded on the Cd0. 3Mn0. 7S solid solution, and the black scales account for 1% of the mass of the Cd0. 3Mn0. 7S solid solution. According to the invention, wide spectrum response is realized through loading of black phosphorus, charge separation efficiency is improved, and Cd0. 3Mn0. 7S photocatalytic hydrogen production is enhanced.
Owner:YANAN UNIV +1
Preparation method of black phosphorus doped magnesium-based novel hydrogen storage material
ActiveCN117682478BAlkali/alkaline-earth/beryllium/magnesium hydridesReversible hydrogen uptakeNanoparticlePhysisorption
The application discloses a preparation method of a black phosphorus doped magnesium-based novel hydrogen storage material, and the method comprises the following steps: mixing and ball-milling black phosphorus micro powder and magnesium powder obtained through electrochemical exfoliation under an inert gas atmosphere, and performing ultrasonic crushing to obtain a nano Mg / BP composite material; and performing heat treatment on the nano Mg / BP composite material under an H2 atmosphere to obtain a nano MgH2 / BP hydrogen storage material. The method uses cheap magnesium powder as raw material, embeds the magnesium powder between expanded black phosphorus layers by using a simple method combining ball-milling and ultrasonic crushing, uses lone pair electrons of the black phosphorus as anchor points to solve the problem of easy agglomeration of magnesium powder nanoparticles, simultaneously uses a large specific surface area of the black phosphorus and strong physical adsorption characteristics of the black phosphorus on hydrogen to expand the capacity of the hydrogen storage material, and finally uses the attraction ability of the lone pair electrons of the black phosphorus on high-valence magnesium in magnesium hydride to weaken Mg-H bonds and effectively reduce the dehydrogenation temperature. The preparation method has the advantages of low cost, short cycle, strong repeatability and wide application prospect in the field of hydrogen energy.
Owner:HUBEI XINGFA CHEM GRP CO LTD +1
Preparation method of quasi-superconducting composite strong magnetic material and magnetizer device
PendingCN120299893AMagnetic bodiesInductances/transformers/magnets manufactureDysprosiumBlack phosphorus
The invention relates to a preparation method of a quasi-superconducting composite strong magnetic material and a magnetizer device, belongs to the technical field of magnetic materials, and relates to the preparation method of the quasi-superconducting composite strong magnetic material, and the preparation method of the quasi-superconducting composite strong magnetic material comprises the following steps: S1, preparing a nano powder material; the preparation method comprises the following steps: preparing cobalt, black phosphorus, nickel alkene, dysprosium, graphene, fullerene and boron alkene into a nano powdery material; s2, preparing a powder blank, namely uniformly mixing nano-powder cobalt, black phosphorus, nickel alkene, dysprosium, graphene, fullerene and boron alkene powder materials according to a preset proportion to prepare a prepared powder blank; s3, powder blank die-casting is conducted, specifically, the prepared powder blank is subjected to die-casting forming in a high-pressure environment; and S4, in a high-pressure environment and an ultra-vacuum environment, performing high-temperature plasma sintering shaping on the die-cast powder blank at the temperature of 1500-3000 DEG C to obtain the nano quasi-superconducting composite material with required physical and mechanical properties.
Owner:林大经 +1
Preparation method and application of boron nitride black phosphorus heterojunction photocatalyst and purification method of dye wastewater
ActiveCN116764661BPhysical/chemical process catalystsWater treatment compoundsHeterojunctionPurification methods
This patent application discloses a preparation method, application and purification method of a boron nitride black phosphorus heterojunction type photocatalyst, the preparation method comprises: (1) weighing red phosphorus, grinding and passing through a 150-250 mesh sieve, washing and drying the portion under the sieve; (2) weighing the red phosphorus treated in step (1) and mixing it with hexagonal boron nitride in a container, wherein the mass ratio of red phosphorus to hexagonal boron nitride is 1:1-4; (3) adding ethylenediamine and dispersing it by ultrasonication for 20-60 minutes; (4) reacting the mixture in an autoclave at 150-170°C for 18-36 hours to obtain a crude product; (5) washing the obtained crude product with anhydrous ethanol and deionized water, and vacuum drying it at 35-45°C for 20-30 hours to obtain a boron nitride black phosphorus heterojunction type photocatalyst. The photocatalytic preparation method of this scheme can improve the problem of generally low catalytic efficiency of traditional photocatalysts; at the same time, h-BN / BP has excellent acid and alkali resistance; in addition, the cost is low and the preparation process is simple.
Owner:CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Black phosphorus phthalocyanine hydrogel and preparation method and application thereof
This invention belongs to the field of biomedical materials technology, and relates to a black phosphorus phthalocyanine hydrogel, its preparation method, and its application. The black phosphorus phthalocyanine hydrogel comprises black phosphorus phthalocyanine and a photocurable gel. The preparation method of black phosphorus phthalocyanine includes the following process: under acidic conditions, black phosphorus nanosheets are mixed with aminosilicon phthalocyanine, allowing the black phosphorus nanosheets and aminosilicon phthalocyanine to self-assemble to form black phosphorus phthalocyanine. This invention combines black phosphorus with aminosilicon phthalocyanine; under the action of near-infrared laser, black phosphorus and aminosilicon phthalocyanine can synergistically exert a bactericidal effect. Simultaneously, black phosphorus can degrade, and its product, phosphate, can promote bone tissue regeneration, thus more effectively treating peri-implantitis.
Owner:SHANDONG UNIV
One-dimensional silicon-doped black phosphorus fiber, preparation method thereof, and ultraviolet photoelectric device
The present invention provides a one-dimensional silicon-doped black phosphorus fiber, a preparation method thereof, and an ultraviolet photoelectric device, comprising: (1) mixing iodine and silicon powder and placing them in a quartz tube, vacuum-sealing the quartz tube, burying the quartz tube in glass powder, heating to 700-900°C, and keeping the temperature, to obtain a silicon-iodine compound; (2) mixing amorphous red phosphorus, tin powder, and a silicon-iodine compound and placing them in a quartz tube, vacuum-sealing the quartz tube, burying the quartz tube in glass powder, heating to 620-650°C, and keeping the temperature; then cooling to 450-500°C and keeping the temperature, to obtain a one-dimensional BP-Si fiber. This method can effectively introduce silicon and realize the controllable growth of one-dimensional BP fiber, on this basis forming a Schottky junction with Ag to improve its photoelectric detection performance, which is conducive to the large-scale production and industrial application of BP-based photoelectric devices.
Owner:SHAANXI UNIV OF SCI & TECH
Method for purifying black phosphorus by multi-region graded electric field
The invention relates to a device and a method for efficiently purifying black phosphorus based on an electromigration separation principle. According to the method, the Coulomb force borne by black phosphorus is larger than the weak acting force combined with the impurities through the designed three-area grading electric field device by means of the conductivity difference between the black phosphorus and the impurities, the black phosphorus is separated from the impurities firstly, particles are promoted to generate different movement tracks, and therefore the purposes of separation and purification are achieved, and meanwhile the integrity of a crystal structure is maintained. The core of the device is composed of three functional areas, namely a preselection area, a main selection area and a fine selection area. The uniform electric field intensity of 15-20kV / m is adopted in the pre-selection area, so that impurities such as oxides adsorbed on the surface of the black phosphorus can be effectively removed; the gradient electric field intensity of 30-40 kV / m is adopted in the main selection area, and a parallel static magnetic field of 0.5-2 T is introduced, so that metal impurities (such as tin and bismuth) and non-metal impurities (such as red phosphorus and iodine) can be effectively removed; a uniform electric field of 25-35 kV / m is adopted in the fine selection area, trace impurity elements can be finely removed, and the purity of the finally obtained crystal is larger than 99.5%.
Owner:HUBEI XINGFA CHEM GRP CO LTD