103 results about "Chemisorption" patented technology

This invention discloses a zinc-iodine battery and an electrode carrier that can simultaneously suppress polyiodine ion shuttle and regulate zinc deposition behavior, wherein the electrode carrier is Cu. + Coordinated poly(3,4-ethylenedioxythiophene) (Cu-PEDOT), via a solvothermal method, to convert Cu... + It was prepared by coordinating with S atoms in the PEDOT framework. I₂ was loaded onto this support as the positive electrode, and Zn was electrochemically deposited as the negative electrode to assemble a battery. The atomically monodisperse Cu in this invention... + It not only enhances the chemisorption of polyiodides as a Lewis active site, but also significantly reduces I... ‑ / I 0 Conversion energy barrier, accelerates reaction kinetics and suppresses shuttle effect; at the same time, Cu + The zinc-affinity property of the substrate reduces the Zn nucleation overpotential, guides Zn to deposit uniformly along the (002) crystal plane, and suppresses dendrites. Zinc-iodine batteries based on this substrate exhibit excellent rate performance and ultra-long cycle stability, and achieve dendrite-free negative electrode growth even under high depth-of-discharge conditions. This invention solves the problem of simultaneous multi-iodide shuttle in the positive electrode and zinc dendrite growth in the negative electrode using a single substrate, significantly improving the energy density and cycle life of the battery.

A method for inhibiting corrosion of a metal article in contact with a solution including an acid includes adding to the solution a corrosion inhibitor in an amount of 1 to 500 parts per million (ppm) based on the total number of parts by mass of the solution, thereby adsorbing the corrosion inhibitor onto the surface of the metal article via at least one interaction to form a barrier layer in the form of a composite. The at least one interaction comprises a physisorption, a chemisorption, and a retro donation. The corrosion inhibitor has a formula (I)where n is any integer from 8 to 21 inclusive and R1, R2, R3, R4, and Rs are each independently selected from the group consisting of a hydrogen atom, a hydroxyl group, an optionally substituted alkyl, an optionally substituted cycloalkyl, and an optionally substituted alkoxy.

The application provides a doped rare earth oxide / carbon nanotube functional diaphragm for a battery and a preparation method thereof. 2‑x The functional diaphragm comprises a diaphragm base and a functional layer laid on one side surface of the diaphragm base, wherein the functional layer is composed of a lanthanum-doped cerium oxide / carbon nanotube (La-CeO 2‑x / CNT) composite material. In the functional diaphragm, the hydroxylated carbon nanotubes are interwoven to form a conductive network, which can not only physically block the migration of polysulfides but also construct a continuous electron transmission channel; the La doping causes the lattice distortion of CeO2 and promotes the generation of oxygen vacancies, thereby enhancing the chemical adsorption capacity of polysulfides and accelerating the conversion reaction kinetics, and further inhibiting the shuttle effect of lithium-sulfur batteries. The lithium-sulfur battery assembled based on the La-CeO 2‑x / CNT functional diaphragm exhibits high specific capacity, excellent rate performance and long cycle stability.

The embodiment of the invention discloses a negative electrode slurry and a preparation method thereof, a negative electrode pole piece and a lithium battery, an auxiliary agent is added into the negative electrode slurry, the auxiliary agent at least contains an alkane group and a first group, the alkane group and an anchoring group capable of performing physical / chemical adsorption on the surface of an active material, and the first group is a second group capable of performing physical / chemical adsorption on the surface of the active material. The first group can form a hydrogen bond with carboxyl in the polyacrylic acid binder, so that the interface bonding force between the polyacrylic acid binder and the active material is remarkably enhanced, the hydrogen bond condensation between molecular chains of the polyacrylic acid binder can be effectively blocked by the steric hindrance effect of the polyacrylic acid binder, and the tendency of agglomeration in a material system is inhibited; therefore, a uniform and stable coating layer is formed on the surface of the active material.

This invention relates to the field of solar cell technology, and in particular to a self-assembled monolayer based on a fluorinated alcohol solvent, its preparation method, and a solar cell. The method involves adding a fluorinated alcohol as a co-solvent to a solution of the self-assembled monolayer material, which is then deposited onto the surface of a metal oxide electrode to construct a hole transport layer. The hydroxyl groups of the fluorinated alcohol can form hydrogen bonds with the phosphorus-oxygen double bonds in the phosphonic acid groups, reducing the electron density of the phosphorus atoms and thus weakening the chemisorption barrier of the self-assembled monolayer on the electrode surface, promoting the formation of a uniform and dense monolayer film. The resulting interface layer effectively suppresses interface defects and promotes hole extraction. Organic solar cells prepared using this method exhibit excellent performance in terms of energy conversion efficiency, stability, and large-area processing adaptability. This invention features a simple process, low cost, and good reproducibility, and has promising prospects for industrial application.

Hydrogenation reactions are catalyzed by driving charged particles (e.g., an electric current or particle beam) into and / or through a catalytic material so as to deliver energy for hydrogenation of one or more compounds chemisorbed by the catalytic material. The energy provided by the charged particles may be adjusted (e.g., based on a measured temperature and / or pressure associated with the reaction) to maintain a desired reaction temperature and / or prevent overheating of the reaction. In one example, hydrogen loading of the catalytic material (e.g., via electrolysis) enhances reaction rates. A wide variety of organic and inorganic reactants are contemplated for applications in food, energy production and storage (e.g., fossil-fuels, bio-fuels, petrochemicals, fuel cells), pharmaceuticals and other chemicals, as well as environmental applications (e.g., wastewater treatment, emissions reduction, carbon capture and sequestration).

This invention discloses an iodine cathode interface conductive polymer slurry, an iodine cathode and its preparation method, and its application in I... ‑ / I2 / I + In the application of positive-valence zinc-iodine batteries, the conductive polymer slurry at the iodine cathode interface is formed by combining an aqueous adhesive and a PEDOT:PSS dispersion. This conductive polymer slurry is uniformly coated onto the surface of the iodine cathode, and after drying, a dense conductive polymer film is formed on the iodine cathode surface. The PEDOT:PSS film of this invention can inhibit polyiodine ion shuttle and I₂ from both physical barrier and chemical adsorption perspectives. + Hydrolysis; when the iodine cathode loading is 10 mg cm⁻¹ ‑2 At that time, the discharge plateau of the zinc-iodine battery was 1.6 V (I 0 / I + ) and 1.2 V(I ‑ / I 0 Its capacity retention rate after 3500 stable cycles is over 91%, effectively improving the performance of the iodine cathode and enhancing the overall performance of the battery; it belongs to the field of battery technology.

The invention relates to the field of temperature control, particularly provides a temperature control method, equipment, a medium and a system, and aims to solve the technical problem that the temperature control range is small due to the fact that an existing chemical adsorption instrument carries out temperature adjustment in a single temperature control mode. The temperature control method comprises the following steps: acquiring a set temperature, a sample temperature and a preset temperature threshold; determining a temperature control mode according to the set temperature, the sample temperature and a preset temperature threshold; and controlling the temperature of the sample in the chemical adsorption instrument according to the temperature control mode.

This invention relates to the field of printed circuit board manufacturing technology and discloses a fine etching process for PCB circuit patterns. The process includes injecting a fine etching composition comprising deionized water, hydrochloric acid, copper chloride dihydrate, anhydrous magnesium chloride, p-toluenesulfonic acid monohydrate, polyethylene glycol, and 2-mercaptobenzimidazole into a circulating working tank of an etching machine; setting the temperature of the working solution in the circulating working tank; sending the substrate to be etched, after dry film development, into a spray section; activating the spray array and setting the spray pressure to etch the substrate; and rapidly rinsing the etched substrate in a deionized water washing section, followed by strong air drying to obtain the circuit pattern. This invention reduces surface tension through specific components to promote solution penetration into the microstructure, utilizes an organic corrosion inhibitor to form a stable protective layer on the trench sidewalls, and combines the vertical impact of the nozzle jet on the bottom, leveraging the difference between mechanical force and chemical adsorption force to achieve anisotropic etching, thus suppressing lateral corrosion of fine circuits.

The invention discloses an alkaline earth metal stable oxygen-like superatomic cluster material and a preparation method thereof.The material is prepared from aluminum powder, alkaline earth metal hydride and anhydrous metal halide serving as a structure-directing agent, and the preparation method comprises the steps that firstly, under the inert atmosphere, the raw materials are subjected to high-energy ball milling to prepare a composite precursor; then temperature programming heat treatment is carried out, hydrogen generated by hydride in-situ decomposition is used for reducing an interface and inducing lattice defects, and meanwhile, interface migration and chemical adsorption effects of halide ions are used for pinning newly generated cluster units; and finally, carrying out non-equilibrium densification through spark plasma sintering. According to the method, the defect that a thermodynamically stable alloy phase is easily formed in a traditional smelting method is overcome, the oxygen-like cluster structure with the 38 electron open shell layer characteristic is successfully stabilized in a macroscopic solid state through a synergistic mechanism of gas phase pore forming and interface pinning, and the material is endowed with excellent catalytic activity and semimetal conduction characteristic.

The present application relates to the field of environment-friendly metal surface pretreatment technology, and discloses a metal chelating film forming agent, a preparation method and application thereof, wherein low-molecular polysilazane resin and zirconium triethanolamine compound are used as film forming agents, epoxy modified silicone resin is used as an auxiliary film forming agent, aspartic acid diacetic acid tetrasodium is used as a chelating dispersant, tetramethyl decyne glycol is used as a wetting agent, n-butanol is used as a leveling agent, and interface stable graphene with Schiff base functional groups, quinoline functional groups and quaternary ammonium salt functional groups on the surface is used as a corrosion-resistant filler to prepare the metal chelating film forming agent, wherein the present application is environmentally friendly, and after the leak detection process of the compressor muffler, no alkaline cleaning agent is needed for cleaning and treatment, and the subsequent spraying can be directly performed, on the other hand, the metal substrate surface can be combined by physical adsorption and chemical adsorption to produce strong bonding force, and a dense protective film is formed on the metal substrate surface, thereby achieving the beneficial technical effect of significantly improving the corrosion resistance.

The invention discloses a stabilizing dispersant for a direct coal liquefaction catalyst and application of the stabilizing dispersant. The stabilizing dispersant for the direct coal liquefaction catalyst comprises sodium alpha-olefin sulfonate, a zwitterionic surfactant and sodium polyacrylate. According to the stable dispersing agent disclosed by the invention, a ternary composite dispersing agent system with alpha-sodium olefin sulfonate coordination chemical adsorption, zwitterionic surfactant charge compensation gap filling and sodium polyacrylate vitrification coating is adopted, so that molecular-level anchoring and dry-state stable immobilization of a micron catalyst in pulverized coal are realized, and the micron catalyst can be controllably released in solvent oil; the dispersion stability of the catalyst is improved, the direct coal liquefaction efficiency is improved, and the liquefaction reaction oil yield is improved.

The application discloses a kind of bottle-in-bottle structure silver porous carbon composite material as zinc iodine battery positive carrier and its preparation and application in zinc iodine battery positive electrode.The bottle-in-bottle structure silver porous carbon composite material Ag@KJ600 is synthesized by ultrasonic immersion method, dried, calcined, ground with I2 in argon protection environment, sealed and heated for 12 hours to obtain Ag@KJ600 / I2.When the composite material is used as iodine positive carrier, it can chemically adsorb polyiodide formed during the cycle process, inhibit the shuttle effect of polyiodide, and further reduce the corrosion of negative zinc and the loss of active material.Ag@KJ600 / I2 active material can be applied to zinc iodine battery iodine positive electrode, and excellent electrochemical performance is shown.

This invention discloses a heteronuclear bimetallic phthalocyanine complex / carbon functional separator for lithium-sulfur batteries and its preparation method, belonging to the field of lithium-sulfur battery technology. The separator includes a substrate and a functional coating layer disposed on its surface, wherein the functional coating layer comprises a heteronuclear bimetallic phthalocyanine complex / carbon composite material. This invention utilizes the bimetallic synergistic effect of heteronuclear bimetallic phthalocyanine and the chemisorption effect of polar functional groups, combined with the conductivity and physical barrier capabilities of carbon materials, to achieve synergistic regulation of polysulfides through "physical barrier-chemisorption-catalytic conversion." This functional separator can effectively suppress the shuttle effect, accelerate sulfur species conversion, and significantly improve the rate performance and cycle stability of the battery. The preparation process of this invention is simple and cost-controllable, showing good application prospects.

The invention discloses a surface modification method of an aramid fiber blended fabric. The surface modification method comprises the following steps: selecting the aramid fiber blended fabric containing 93% of meta-aramid fiber, 5% of para-aramid fiber and 2% of conductive fiber as base cloth; carrying out pre-cleaning and pretreatment on the aramid fiber blended fabric; preparing an ANFs suspension with a certain concentration, and magnetically stirring at 40 DEG C to form a stable suspension; putting the pretreated aramid fiber blended fabric into a stable ANFs suspension, and carrying out ultrasonic impregnation for a certain period of time; and repeatedly cleaning the secondarily treated aramid fiber blended fabric with absolute ethyl alcohol, and drying the secondarily treated aramid fiber blended fabric. According to the method, polar groups are introduced through plasmas, chemical adsorption is formed by the polar groups and amido bonds of ANFs, meanwhile, the ANFs are embedded into the rough surface etched by the plasmas, the synergistic effect of chemical adsorption and mechanical bonding is achieved, and the possibility of multi-dimensional functional synergistic modification is provided for application of high-performance fibers such as aramid fibers in high-end composite materials and intelligent equipment.

A method for filling a gap in a substrate is disclosed. The method includes providing a substrate with a gap in a reaction chamber, forming first active species from a first reactant to create an inhibition layer near the top of the gap, and performing one or more deposition cycles to deposit material into the gap. Each deposition cycle involves introducing a second reactant to form a chemisorbed layer and generating a second active species from a third reactant using pulsed plasma power, which reacts with the chemisorbed layer to form a deposited layer. The inhibition layer partially inhibits deposition at the top of the gap. The deposited material comprises silicon nitride, which is subsequently converted to silicon oxide by providing a fourth reactant containing hydrogen and oxygen. This conversion results in volume expansion and improved gap filling.

The present application relates to modified halloysite nanotubes configured for chemisorption of volatile organic compounds with high efficiency and / or have high formaldehyde retention capacity by comprising one or more functional groups selected from amines (in other words, amino-), hydrazides, and acylhydrazides, as well as to the production methods and use thereof.

A method of selective deposition that includes disposing in a deposition chamber a substrate having metallic and dielectric surfaces. The deposition chamber is connected to a bubbler that contains a 1,2,3-triazolium salt and / or a carboxylate zwitterion form of the 1,2,3-triazole, which are precursors to free 1,2,3-triazol-5-ylidene. By heating the bubbler, gaseous free 1,2,3-triazol-5-ylidene was generated which moved into the deposition chamber, where the 1,2,3-triazol-5-ylidene selectively chemisorbed onto the metallic surface(s).

A method for depositing a material within a gap of a substrate in a cyclic deposition process. The method includes, within a reaction chamber, subjecting the gap to at least one deposition cycle, the at least one deposition cycle including: (a) contacting the gap with an inhibitor, wherein the gap includes a plurality of chemisorption sites on a surface thereof, and wherein the inhibitor occupies a portion of the chemisorption sites in the gap; (b) following the contacting the gap with the inhibitor, contacting the gap with a first precursor to chemisorb the first precursor within the gap at chemisorption sites not occupied by the inhibitor; and (c) following the contacting the gap with the first precursor, contacting the gap with a second precursor to form the material within the gap.

The utility model discloses a circulating tumor cell physicochemical screen which comprises a body, a reaction tank is arranged in the body, one end of the reaction tank is provided with at least two liquid inlets, the other end of the reaction tank is provided with a liquid outlet, and a fluid channel is arranged between the liquid inlets and the liquid outlet. At least two reaction areas are arranged in the fluid channel, and a plurality of micro-columns are arranged in each reaction area; a connecting area is arranged between every two adjacent reaction areas, and no micro-column is arranged in each connecting area. Along the direction from the liquid inlet to the liquid outlet, the distance between the micro-columns in each reaction area is gradually reduced. According to the circulating tumor cell sorting device, circulating tumor cells are sorted in a mode of combining physical blocking and chemical adsorption, blocking pressure is reduced due to the arrangement of the connecting area, fluid can pass through smoothly, and blocking is avoided; the distance between the micro-columns in each reaction area is gradually reduced, so that the separation and screening of the CTC cells are facilitated.

The invention relates to the technical field of chemical adsorption, particularly provides a gas mixing device and a chemical adsorption instrument, and aims to solve the problem that a gas mixing device of an existing chemical adsorption instrument is complex in structure. Therefore, the gas mixing device comprises a first gas inlet module and a plurality of mixing tanks, the first gas inlet module comprises a plurality of main channels and a plurality of first gas cylinders, the main channels correspond to the mixing tanks in a one-to-one mode, the gas outlet end of each first gas cylinder is connected with a plurality of gas inlet branches, and the gas inlet branches are connected with the main channels; the control valves are arranged on the air inlet branches; and the controller controls the working state of each control valve, so that one or more gases selectively enter the mixing tank through the main channel. According to the gas mixing device provided by the invention, the modular valve block design is adopted, the system structure is simplified, the control complexity is reduced, and meanwhile, the purity of the reaction gas is also improved.

The invention provides a porous oxygen carrier catalyst as well as a preparation method and application thereof. According to the prepared porous oxygen carrier catalyst, the active component, the bridging component and the inert component jointly form a three-dimensional porous frame structure, the three-dimensional porous frame structure has rich nano-micron composite pore channels, and the pore size distribution of the three-dimensional porous frame structure is large; the pore volume and the pore channel structure can be reasonably regulated and controlled based on different functional requirements of the oxygen carrier on physical adsorption and chemical adsorption. The porous oxygen carrier catalyst prepared by the invention has a nano-pore and micron-pore two-stage pore structure, wherein the nano-pores are used for extending active sites of chemical adsorption; micrometer holes facilitate diffusion of reaction atmosphere into internal pore channels of the particles; the porosity of the porous oxygen carrier catalyst can reach 40-80%, and the particle hardness can reach 3-10 N; the method has remarkable application potential in the related fields of chemical looping combustion, oxygen carrier auxiliary combustion and carbon dioxide trapping.

The invention discloses a vegetable oil-based high-lubrication environment-friendly cutting fluid and a preparation method thereof, and belongs to the technical field of metal working fluids. The cutting fluid is prepared from the following components in parts by mass: 18-25 parts of compound vegetable oil, 8-15 parts of compound organic acid, 0.3-0.8 part of colloidal graphite, 0.2-0.6 part of boron-molybdenum-rare earth friction modifier, 5-10 parts of amino-acid ester antirust agent, 4-10 parts of pH response type bifunctional vegetable oil amide, 1-2 parts of cosolvent, 10-16 parts of triethanolamine, 1-3 parts of bactericide and the balance of deionized water, wherein the total mass of the cutting fluid is 100 parts. A mercaptobenzothiazole extreme pressure functional group and a carboxyl pH response switch are covalently bonded to a vegetable oleic acid skeleton, so that a single molecule simultaneously has environment sensing and powerful film forming functions. The molecules are stably dispersed in an alkaline environment of the cutting fluid, instantaneous conformation overturning is carried out in a local acid micro-area of a friction interface, extreme pressure groups are exposed and chemically adsorbed with a metal surface, and a dynamic reversible self-repairing lubricating film is formed.

Solid-state membrane compositions for separating carbon dioxide gas from mixed gases such as exhaust or flue gases from combusted hydrocarbon are described, where in an embodiment the composition comprises zirconyl (IV) nitrate; a lithium nitrate; a copper (II) nitrate, and a potassium nitrate. Methods for forming such copper infused lithium zirconate membrane for separating carbon dioxide gas showing enhanced absorption and desorption of CO2 gas are also described.

Systems and methods for direct air capture of carbon dioxide or other gases utilize a calcium sorbent in a manner that allows for wide scale, relatively low cost implementation. In particular, a calcium sorbent may be provided as a substantially thin coating on one or more substrates and utilized for direct air capture of carbon dioxide through chemisorption. The carbonated sorbent may be disposed of for sequestration of the carbon dioxide or regenerated with capture of carbon dioxide released from the carbonated sorbent during the regeneration process.

The application relates to a molybdenum carbide / nitrogen-doped carbon composite material and a preparation method and application thereof, and belongs to the technical field of new energy materials and devices. Ammonium molybdate, glucose and g-C3N4 are uniformly mixed, and then subjected to hydrothermal treatment and high-temperature calcination treatment to obtain a composite material (Mo2C / NC) in which nano Mo2C electrocatalysts are dispersedly distributed in a nitrogen-doped carbon matrix. The nitrogen-doped carbon in the composite material has a hierarchical porous structure, which enhances electrolyte permeation and ion transmission capacity; the nitrogen-doped active sites not only enhance the adsorption performance of the porous carbon to polysulfides, but also can optimize the coordination structure of Mo2C to improve the catalytic activity of the Mo2C; the Mo2C can chemically adsorb and efficiently catalyze the reversible conversion of polysulfides, and improve the utilization rate of active substances. When the composite material is used as a positive electrode additive of a lithium-sulfur battery, the polysulfide dissolution and shuttling can be effectively inhibited, and the battery exhibits high specific capacity, rate performance and excellent cycle reversibility.

The application discloses a kind of electrospinning membrane materials for reducing the content of Ni / Bi in electronic grade sulfuric acid and preparation method, the electrospinning membrane material uses N,N-dimethylformamide as solvent, polyvinylidene fluoride as polymer, graphene oxide as chemical adsorption complexing agent, which is configured into stable film liquid with suitable viscosity for electrospinning, and the PVDF / GO electrospinning membrane material is obtained by spinning.The application can effectively solve the problem of high content of specific metal ion impurities in the purification of existing high-purity sulfuric acid, especially for the high removal capacity of Ni and Bi metal ions.

The application provides an internal combustion engine exhaust treatment agent and relates to the technical field of exhaust treatment. The internal combustion engine exhaust treatment agent comprises cerium oxide 20-30 parts, zirconium oxide 30-35 parts, dilute sulfuric acid 35-50 parts and urea solution 15-30 parts. The cerium-zirconium composite oxide catalyst prepared by adopting sulfuric acid for sulfation is a new type of cerium-zirconium catalyst, which is beneficial to increase the chemical adsorption and activation of NH3 and increase the active oxygen component, significantly improve the NH3-SCR catalytic performance of CeO2, obviously improve the adsorption of CeO2 to NH3 after surface sulfation, thereby promote the Eley-Rideal reaction mechanism, and the adsorption sites and oxidation sites of the surface-NH2 of CeO2 after sulfation are separated, thereby the catalytic oxidation of-NH2 to NO can be effectively inhibited, the pollution to the environment is reduced, compared with vanadium, the pollution to the environment is lower, and compared with vanadium, the cerium reserves are large and the cost is lower. The economic benefit of the internal combustion engine exhaust treatment agent prepared by mixing the cobalt-cerium-zirconium composite oxide catalyst and the urea solution is effectively improved.

The application discloses a battery chip back electrode passivation method and relates to the technical field of battery chips, which comprises the following steps: placing a battery chip in a reaction cavity, controlling the temperature and back pressure of the reaction cavity, pulse-injecting a steric slow-release precursor solution prepared by the coordination reaction of trimethylaluminum and tert-butylamine, performing chemical adsorption, introducing double-frequency resonance cascade working gas after purging, starting a high-frequency radio frequency power supply to perform processing, forming an initial-state sub-monolayer, keeping the high-frequency radio frequency power supply on, superimposing a low-frequency radio frequency power supply, controlling the low-frequency power by linear ramping, converting the initial-state sub-monolayer into a dense barrier layer by physical bombardment, shutting down the low-frequency radio frequency power supply, reducing the high-frequency radio frequency power supply to a low-power state, keeping the double-frequency resonance cascade working gas purging, and performing by-product desorption overflow processing. The application takes into account low-damage protection of a sensitive interface and high density of a film layer in a single vacuum process, effectively removes film layer impurities, and improves the corrosion resistance and long-term reliability of the battery chip.