80 results about "Ion formation" patented technology

The invention discloses an electrolyte for a lithium manganate lithium ion battery and a preparation method thereof, and the electrolyte comprises the following components in percentage by mass: 70-90% of an organic solvent, 5-20% of a lithium salt and 0.5-10% of an additive, the organic solvent is formed by mixing cyclic carbonate and chain carbonate according to the mass ratio of (10-30): (70-90); the lithium salt adopts one or more of lithium hexafluorophosphate (LiPF), lithium tetrafluoroborate (LiBF) and lithium bis (trifluoromethane sulfonimide) (LiTFSI), and the concentration of the lithium salt is 0.8 to 1.5 mol / L; the additives comprise a manganese ion complexing agent, a film forming accelerant and an antioxidant. In the invention, the manganese ion inhibition effect is as follows: the complexing agent and Mn (II) ions form a stable complex, so that the concentration of free Mn (II) in the electrolyte is reduced by more than 80%, migration and deposition of the free Mn (II) to the negative electrode are inhibited, and the dissolution amount of the Mn element of the positive electrode is reduced by 65% after 500 times of circulation at 45 DEG C.

The invention discloses a tooth repair composition containing mesoporous hydroxyapatite, a tooth repair product and a preparation method and application of the tooth repair composition and the tooth repair product. The tooth repair composition comprises nano-hydroxyapatite, fluoride and a chelating agent, the logarithm value logK of the stability constant K of the chelating agent to calcium ions is 1 < = logK < = 5, and K is measured in an aqueous solution with the temperature of 25 DEG C, the pH value of 7.0 and the ionic strength of 0.1 M; the nano-hydroxyapatite is prepared from nano-scale mesoporous hydroxyapatite, and the nano-hydroxyapatite contains nano-scale mesoporous hydroxyapatite. By adding the specific chelating agent, dynamic balance is formed in the tooth repairing composition, slow release protection can be formed on free calcium ions, the double inactivation effect possibly occurring when hydroxyapatite and fluoride exist at the same time is effectively avoided, the synergistic repairing effect of hydroxyapatite and fluoride is fully exerted, and the tooth repairing effect is improved. The use of fluorides can be greatly reduced, and safety and reliability are achieved.

The application provides a seawater hydrogen production electrode, which comprises a substrate and a catalytic layer combined on the surface of the substrate, wherein the catalytic layer is obtained through metal corrosion and in-situ deposition reaction of the substrate in a solution containing chloride ions; the application also provides a preparation method and application of the electrode. The catalyst layer of the application forms in chloride ions, forms a reaction equilibrium with chloride ions in seawater, can stably exist in chloride ions, avoids the adverse effects of seawater chlor-oxidation, has high stability in seawater electrolysis hydrogen production, and can simultaneously catalyze hydrogen production and oxygen production reactions and has selectivity. The electrode provided by the application can be applied to an electrolytic hydrogen production system and can directly electrolyze seawater, avoids the limitation of electrolytic hydrogen production application caused by lack of fresh water resources, reduces electrolytic hydrogen production cost, and expands the application range of electrolytic hydrogen production.

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.

The invention provides a perovskite solar cell and a preparation method thereof, and belongs to the technical field of solar cells. Comprising conductive glass, a SnO2 layer, a bottom-buried interface modification layer, a perovskite layer, an interface passivation layer, a hole transport layer and a metal electrode layer which are sequentially stacked, and the bottom-buried interface modification layer comprises fluorine-containing sylvite sulfonate. According to the invention, a bottom-buried interface is modified by using fluorine-containing potassium sulfonate, and through the effects that F atoms and = N-H in formamidine ions (FA < + >) in a perovskite layer form = N-H...... F hydrogen bonds, sulfonate radicals and uncoordinated Pb < 2 + > in the perovskite layer interact, SnO2 is passivated, and K ions and I ions form ionic bonds, the defects of the SnO2 surface and the perovskite bottom interface are synergistically passivated; according to the invention, non-radiative recombination at the interface is reduced, the transmission performance of the interface is improved, the crystallization process of the upper layer perovskite is improved, and the obtained perovskite device has higher photoelectric conversion efficiency and good stability.

The application discloses a kind of based on plasma atomization gas auxiliary electric spray ionization method, comprising the following steps: a) sample solution is introduced into electric spray needle;B) open plasma initiation device, make plasma initiation device discharge and generate plasma in plasma atomization gas gas path;C) atomization gas is introduced into plasma atomization gas gas path, and the atomization gas under the action of plasma forms plasma atomization gas;D) open high-voltage power supply, and sample solution is under the action of high-voltage electricity and plasma atomization gas and generates spray and forms sample ion, and the sample ion formed enters mass spectrometer by mass spectrometry inlet channel.This application can improve sensitivity, and under the premise that compound fragmentation dissociation does not occur, it is used for electric spray unfriendly solvent and difficult to detect low polarity compound detection, which can be compatible with normal phase liquid chromatography commonly used solvent, and can also reduce the influence of common complex matrix effect in electric spray ionization.

The invention belongs to the field of membrane separation and technology, and particularly relates to a preparation method of a two-dimensional ion separation membrane with a multilayer channel structure, which comprises the following steps: uniformly mixing and stirring different two-dimensional nanosheet dispersion liquids with an interface modification agent to prepare different two-dimensional nanosheet casting membrane liquids; uniformly blade-coating one of the two-dimensional nanosheet membrane casting solutions on a porous base membrane, and drying to form a single-layer two-dimensional channel membrane; sequentially and uniformly blade-coating the single-layer two-dimensional channel membrane with at least one two-dimensional nanosheet casting membrane solution different from the two-dimensional nanosheet casting membrane solution in the previous step, and drying to form a multi-layer two-dimensional channel membrane; and preparing an interfacial polymerization layer on the surface of the multi-layer two-dimensional channel membrane by adopting an interfacial polymerization method, and drying a product at constant temperature and constant humidity to prepare the two-dimensional ion separation membrane with the multi-layer channel structure. According to the preparation method disclosed by the invention, different ions can be effectively screened step by step by constructing a multi-layer two-dimensional nano channel-interfacial polymerization coupling structure, so that ultrahigh separation selectivity is shown.

The application relates to the technical field of air ducts and discloses an air duct with negative ion ionization, which comprises a pipe body butting against an air outlet for discharging air into a room, the pipe body is provided with a pipe channel penetrating through the front and back of the pipe body, the two ends of the pipe body are provided with air inlet ports and air outlet ports, the middle part of the pipe channel is provided with an ionization section, and the pipe body is provided with an air ionizer; the air ionizer is provided with two ionization needles for high-voltage ionization of air; the ionization needles are respectively connected with ionization nets made of metal, the ionization nets are arranged along the cross-section direction of the pipe channel, the two ionization nets are arranged at intervals, and an ionization interval is formed. The air in the pipe channel is ionized through relative discharge of the two ionization needles, air negative ions are formed, the ionization area is increased through the ionization nets, and a large amount of air negative ions are formed in the ionization interval; the air blown out by the air outlet is effectively purified, and the air negative ions have the advantages of adsorbing dust, purifying air, improving heart and lung functions, promoting human metabolism, improving sleep quality and the like.

The present application relates to a kind of perovskite solar cells and its passivation method, the electron blocking layer is made of acyl chloride group derivative, on the one hand, the carbonyl group in acyl chloride group can be coordinated with the Pb 2+ Ion forms Lewis acid-base pair, thereby significantly reduce the defect state density of perovskite surface.Let go of group Cl ‑ Ion can increase the grain size of perovskite, improve the crystalline quality of perovskite layer.In addition, acyl chloride group and perovskite component reaction generates electron blocking layer cesium acetate, reduces the charge recombination at interface, while it can promote energy level gradient arrangement, effectively improve the separation and extraction capacity of carrier, successfully improve the photoelectric conversion efficiency and stability of carbon-based hole-free all-inorganic perovskite solar cell, and significantly reduce the hysteresis effect.The present application process is simple and has universality, is conducive to promoting the commercialization of perovskite, has wide market demand and application prospect.

The disclosure extends to multiple ion nanoparticles for delivery of agricultural products and ions. A composition includes a structural particle and a plurality of ions disposed around the structural particle. The plurality of ions forms a plurality of ion layers surrounding the structural particle. The plurality of ions comprises a plurality of a first ion having a positive charge and a plurality of a second ion having a negative charge.

The invention discloses a carbon nitride composite material as well as a preparation method and application thereof, and designs and prepares an activated carbon loaded modified carbon nitride nanosheet, K ions are doped between layers of the modified carbon nitride nanosheet to form local geometric distortion caused by KN bridging and K + intercalation, and the local geometric distortion and a P gap state generate synergy, so that the performance of the carbon nitride composite material is improved. The adsorption and activation capabilities of the material on O2 molecules are jointly optimized, so that the reaction from * OO to * OOH is obviously accelerated. The adsorption and enrichment effects of the activated carbon and the oxidative degradation and sterilization capabilities of the photocatalytic material can be fully utilized.

The present invention relates to novel compounds formed by the pairing of ion of fu- rafinitib, which have one or more improved properties compared to the prior art of furafinitib. The present invention also relates to a process for the preparation of said compounds, to pharmaceutical compositions thereof and to the use thereof for the preparation of a medicament for the treatment and / or prevention of diseases associated with abnormal angiogenesis in a patient, such as cancer, tumors, macular disorders and chronic inflammation.

The invention discloses a metal-lignin composite material and a preparation method and application thereof, and belongs to the technical field of photothermal conversion materials. The metal-lignin composite material provided by the invention is obtained by reacting lignin with metal ions in an ammonia water system; at least a part of the metal ions are chemically bonded to the lignin, and at least a part of the metal ions chemically bonded to the lignin form metal / ammonia coordination; the metal ions are one of copper ions, iron ions, cobalt ions, nickel ions and chromium ions. According to the invention, through the synergistic effect of each coordination, the composite material can be endowed with excellent ultraviolet-visible light-near infrared light absorption capacity, the light absorption and photothermal conversion performance, stability and durability of the composite material are greatly improved, and the composite material has wide market application prospects in the technical field of solar water evaporation and water treatment.

The invention belongs to the technical field of photovoltaic materials, and particularly relates to a preparation method and application of a C60 material containing tetrazole olefinic bonds. The preparation method of the C60 material containing the tetrazole olefinic bond comprises the following steps: (1) mixing tetrazole and halogenated olefin to obtain tetrazolyl halogenated olefin; and (2) mixing halogenated C60 and tetrazolyl halogenated olefin, and carrying out Sonogashira coupling reaction to obtain the C60 material containing the tetrazolyl olefin bond. The beneficial effects of the invention are that the C60 material containing tetrazole olefinic bonds is used as the electron transport layer, and in the P2 and P3 laser scribing process, dynamically broken tetrazole halide can be bonded with Pb ions in perovskite, thereby effectively self-repairing possible damage of laser scribing to the perovskite thin film, and improving the performance of the perovskite thin film. A laser scribing area is well protected; meanwhile, non-radiative recombination of a perovskite electron transmission interface can be effectively reduced, and the efficiency and the stability of a device are improved.

The application relates to a double anion sodium ion battery positive electrode material and a preparation method and application thereof, and belongs to the technical field of sodium ion batteries. p Cu x Fe y Mn z M q O (2‑α‑β) (SO4) β F α , wherein M is a doping element other than Cu, Fe and Mn; 0.61 < p <= 0.78, 0.22 <= x <= 0.33, 0.10 <= y <= 0.12, 0.45 <= z <= 0.78, 0.08 <= q <= 0.12, and x + y + z + q = 1; 0 < alpha <= 0.1; 0 < beta <= 0.05, the values of p, x, y, z, q, alpha and beta satisfy the charge balance of the chemical formula. The double anion sodium ion battery positive electrode material has strong electronegativity, and the two kinds of anions form a more stable structure with cations in the material, and the sodium ion free distance is shortened, and the structural stability is improved.

The invention provides a method for promoting low-temperature densification of yttria-stabilized zirconia and application, and belongs to the technical field of high-temperature solid oxide fuel cells. The nano-powder prepared by a sol-gel method is small in particle size, large in specific surface area and high in activity, so that the densification temperature of the nano-powder is reduced, the nano-powder is sintered in a vapor-containing atmosphere, the oxygen partial pressure under high-temperature vapor is reduced, lattice oxygen escapes to form oxygen vacancies, meanwhile, hydrogen proton defects generated by hydrolysis reduce the formation energy of cation defects, and the oxygen vacancies are reduced. Formation of defects is promoted, and oxygen vacancies and the defects provide channels for atomic diffusion; and hydroxyl adsorbed on the surface of the YSZ and cations form ionic bonds, the diffusion rate of OH <-> is far higher than that of O2 <->, and due to electrostatic interaction, diffusion of cations is further promoted, so that sintering of the YSZ is promoted, and low-temperature densification of the YSZ is realized.

The application provides a magnetic fluid driven shock wave water jet supercritical state ion mist explosion decomposer, which comprises a water body type Mach shock wave generator, the water body type Mach shock wave generator converts electric energy into high-energy shock wave energy, liquid forms a liquid-gas mixed layer at the tip of a Mach cone, micro-nano cavities in the liquid-gas mixed layer collapse to generate ultrahigh temperature and pressure, provide conditions for the formation of supercritical state ions, and are accompanied by micro-jets, which are dispersed on the surface of the liquid; and a magnetic fluid driver is arranged above the water body type Mach shock wave generator, the magnetic fluid driver generates an electric field perpendicular to a magnetic field through positive and negative electrodes, cuts the magnetic force lines, and makes the liquid form a rotating vortex flow by itself. The decomposer can play a role in sterilization and disinfection in water and air, and has the advantages of lightness, smallness, thinness, low power consumption, low cost and the like.

The invention belongs to the technical field of corrosion protection, and particularly relates to a two-dimensional composite anticorrosive filler as well as a preparation method and application thereof. The preparation method comprises the following steps: growing polyaniline on graphene oxide through in-situ polymerization to serve as a substrate layer; forming a polydopamine adhesion layer on the surface of the substrate layer; through the self-polymerization effect of dopamine, mesoporous silica coated tannic acid is loaded on a polydopamine adhesion layer, and a two-dimensional composite anticorrosive filler is constructed. The filler not only retains the physical barrier characteristic of a two-dimensional filler, but also introduces a synergistic corrosion inhibition mechanism of polyaniline and tannic acid, so that a dual-protection function is realized. Polyaniline promotes the formation of a passive film through an oxidation-reduction reaction, and tannic acid forms a protective layer through complexing metal ions to achieve a synergistic effect, so that more efficient and more lasting active protection is provided.

A battery cell, its preparation method, battery, and power-consuming device are disclosed. The battery cell includes a positive electrode sheet, which comprises a positive current collector and a positive active material layer and a coating disposed on at least one surface of the positive current collector. The positive active material layer is disposed on the current collector, and the coating is disposed on the positive active material layer. The positive active material layer comprises sulfate ions, and the coating comprises a metal salt. The solubility product K of the inorganic salt formed by the sulfate ions and the metal cation of the metal salt is... sp ≤10 ‑6 The technical solution of this application is beneficial to reducing the sulfate ion content in the electrolyte of battery cells and improving the cycle performance of battery cells.

A method of separating chemical components by gas ion rectification comprising introducing a gaseous sample into a reaction space at a pressure above about 10 torr, where the gaseous sample comprises at least two chemical components; introducing a gaseous reactant into the reaction space, wherein the reactant comprises reactant ions configured to selectively ionize at least two chemical components in the sample; selectively ionizing the reactant ions from the at least two chemical components in the sample to form product ions, wherein the order in which the product ions are formed is controlled by vapor concentrations of the at least two chemical components, concentrations of the reactant ions, and reaction rate coefficients of the at least two chemical components; and subsequently removing the ionized at least two components from the reaction space in the order of product ion formation.

This invention provides a method for recovering nickel from high-temperature alloys. The method includes the following steps: electrochemically dissolving the high-temperature alloy to obtain a nickel-containing electrolyte and anode mud; adjusting the pH of the nickel-containing electrolyte until impurity metal ions form a precipitate, separating the precipitate to obtain a purified solution; mixing the purified solution, a chloride-containing solution, and an extractant for extraction to separate a cobalt-supported organic phase and a nickel-containing raffinate; adjusting the pH of the nickel-containing raffinate until nickel ions are converted into nickel precipitate, and then reducing the nickel precipitate with hydrogen plasma to obtain metallic nickel powder. The recovery process provided by this invention achieves high purity nickel recovery from high-temperature alloys, significantly shortens the single-batch operation cycle, improves recovery efficiency, and can meet the needs of large-scale, high-load continuous production.

The application discloses a fluorescent material for rapidly detecting cesium ions in water, and a preparation method thereof is as follows: first, synthesizing carbon quantum dots (NCD) with positive charges on the surface through a hydrothermal method, and then preparing a 0.1-100 mg.mL ‑1 0.02-100 mg.mL ‑1 aqueous solution of a heteropoly acid. The surface of the formed composite material presents negative charges and the original strong fluorescence effect is inhibited to be weak fluorescence. When the water contains cesium ions capable of forming an association with the heteropoly acid anions, the heteropoly acid anions are "stolen" by the cesium ions, and then the strong fluorescence performance of the material is recovered, indicating that the water is polluted by containing the cesium ions. The fluorescent material is high in sensitivity, low in detection limit, rapid in detection and simple in operation, and is especially suitable for monitoring of cesium ion pollution in seawater.

An electrolyte for a lead storage battery, and a use thereof, belonging to the technical field of lead storage battery production. Improving the electrolyte by means of adding a surfactant changes the surface tension of the electrolyte, and can thus slow the phenomenon of delamination of the electrolyte from a source. Additionally, the introduced surfactant forms a stable complex by means of capturing lead ions in the electrolyte, thereby preventing the formation of lead dendrites and reducing the risk of short circuits.

The invention provides a functional layer for improving an organic-inorganic hybrid perovskite film and a preparation method and application thereof, the functional layer contains specific small organic molecules, and the end groups of the two small organic molecules both comprise at least one of fluorine, chlorine, bromine, iodine, hydroxyl or amino; according to the organic-inorganic hybrid perovskite thin film, the functional layer is arranged at the bottom of the perovskite thin film, namely, one end where inorganic A-site cations gather, and a specific end group and organic A-site ions form strong hydrogen-bond interaction, so that more organic A-site ions are bonded to the bottom of the perovskite thin film, and therefore, the distribution of the A-site ions of the organic-inorganic hybrid perovskite thin film in the vertical direction is more uniform, and the performance of the organic-inorganic hybrid perovskite thin film is improved. And the quality of the perovskite film and the performance of the device are improved.

The embodiment of the invention relates to a self-healing diaphragm, an ionic solution, a solid electrolyte, a preparation method and application. The preparation method of the diaphragm comprises the following steps: adding a first polymer, a hydroxyl-containing polymer matrix and a fluorine-containing lithium salt into an organic solvent to form a first solution; mixing the nano solid electrolyte with a second polymer to obtain a third solution; the first solution and the third solution are subjected to electrostatic spinning to form a membrane, and the membrane with the self-healing capacity is obtained through drying and piece cutting; the diaphragm contains a self-healing polymer, and hydrogen bond bridging is formed through hydroxyl in a polymer matrix and fluorine ions in fluorine-containing lithium salt, so that self-repairing is realized; the ionic solution is obtained by mixing a polymer monomer, the polymer matrix, a fluorine-containing lithium salt, an auxiliary agent, a film-forming additive and a lithium salt; the diaphragm and the ionic solution are used as a battery diaphragm and an electrolyte to assemble a battery and initiate in-situ polymerization to obtain a gel solid electrolyte with self-healing capability, so that the safety and the stability of the battery can be remarkably improved.

The invention discloses a preparation method and application of a formamide-containing silane passivator, and belongs to the field of passivated perovskite. The preparation method of the silane passivator comprises the following steps: sequentially adding 1, 3-bis (3-aminopropyl) tetramethyldisiloxane and ethyl formate into a system, and heating to react in a nitrogen atmosphere; and carrying out reduced pressure distillation until no fraction is distilled out, so as to obtain the formamide-containing silane passivator. The silane passivator is stable in chemical property, and the synthesis method is simple. After perovskite is passivated by the passivator, a C = O double bond in formamide and uncoordinated lead ions (Pb < 2 + >) can form a hydrogen bond, so that a crystal structure is perfected; the imino group (-NH-) and halogen ions form a hydrogen bond, and halogen ion migration is reduced, so that perovskite defects are passivated, non-radiative recombination is inhibited, and the optical property and stability of the perovskite material are effectively improved.

The invention belongs to the technical field of boron detection, and particularly relates to a method for detecting the content of boron in iron ore and application. The method comprises the following steps: adding a mixed acid of nitric acid, hydrochloric acid and hydrofluoric acid into a to-be-detected iron ore sample, and completely decomposing the to-be-detected iron ore sample through microwave digestion to obtain a sample solution; adding calcium salt into the sample solution, adjusting the pH value, enabling fluorine ions in the sample solution to form calcium fluoride precipitates, enabling iron and niobium interference elements in the sample solution to form hydroxide precipitates, and filtering out the calcium fluoride precipitates and the hydroxide precipitates to obtain a filtrate without matrix interference; a standard addition method is adopted, a series of boron standard solutions are added into the filtrate, the spectral line intensity of the series of solutions at the position of 249.678 nm is measured, a working curve is established, and the boron content in the iron ore sample to be measured is calculated through an extrapolation method. The three major pain points of iron and niobium interference, fluorine corrosion and lengthy process are solved in series.

The invention relates to a novel deep defluorination agent and resource application of solid waste generated by the novel deep defluorination agent. The novel deep defluorination agent is characterized by being prepared from the following raw materials: composite bimetallic oxide coated modified calcium carbonate microspheres, polyaluminum ferric chloride disodium hydrogen phosphate, polyethylene glycol-6000, 3 to 5 parts of sodium carbonate, magnesium sulfate and chitosan, the composite bimetal oxide coated modified calcium carbonate microsphere is of a core-shell structure and takes a calcium carbonate microsphere as a core, and a porous aluminum oxide coating layer and a porous zirconium oxide coating layer which are sequentially coated on the surface of the core. Through the multi-layer wrapping effect, calcium carbonate is used as an inner core, calcium ions can be slowly released, and calcium fluoride is formed by the calcium ions and fluorine ions; modified calcium carbonate microspheres are wrapped by porous aluminum oxide (inner layer) and porous zirconium oxide (outer layer), a stepped synergistic adsorption system is formed in deep fluorine removal, and efficient fluorine removal is realized through hierarchical function division.

An electroluminescent material and a non-doped electroluminescent device manufactured using the electroluminescent material. The electroluminescent device comprises a cathode, an anode, and a light-emitting layer between the cathode and the anode, the light-emitting layer consisting of a light-emitting d-f transition Ce(III) complex or Eu(II) complex; the light-emitting d-f transition Ce(III) complex has one or more Ce 3+ ions as central light-emitting ions and forms coordination bonds with Ce 3+ ions, and a first coordination layer around the Ce 3+ ions has 3-15 coordination atoms including one or more of C, N, O, F, Cl, Br, and I. The non-doped device has better electroluminescent performance than equivalent doped devices, while being less expensive to manufacture.