15 results about "Ion formation" patented technology

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.

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.

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.

A subject of the invention is a remineralizing dental material, having at least one cation and at least one anion, which are configured as partner ions for forming a remineralization substance. In accordance with the invention at least one of the partner ions is multivalent and is included as counterion in a coacervate. A further subject of the invention is a kit for producing such a dental material, and also the use thereof.

The invention discloses a true and false detection method based on the self potential of an ionic water solution and an integrated bottle cap device, and belongs to the field of ionized water detection and beverage packaging. The method comprises the following steps: inserting a collecting electrode into a to-be-detected solution, and driving an LED by using a natural potential difference formed by free ions so as to determine the authenticity of the ionized water, the matching device comprises a bottle cap main body, an integrated core rod, a collecting electrode, a suction tube, an LED assembly and a doubling interface, and is adaptive to conventional bottled drinks. An external power supply and a professional instrument are not needed, on-site instant detection of the ionized water is realized, multiple devices are connected in parallel to form a power supply group for emergency charging of small portable electronic equipment, multiple functions are integrated, the method is simple, the cost is low, the expansibility is high, and the method is suitable for large-scale market popularization.

This invention provides a method for preparing titanium-silicon powder from waste denitrification catalyst and the obtained titanium-silicon powder. The method includes: 1) pulverizing the waste denitrification catalyst under inert gas protection using airflow, followed by calcination in air atmosphere to obtain activated titanium-silicon powder; 2) soaking the activated titanium-silicon powder in a composite leaching system, wherein the composite leaching system includes a system providing H... + Acidic solutions with W 6+ V 5+ Acids that complex with ions and facilitate the formation of low-valence V 4+ V³ + The ion-dissolving co-solvent, after soaking, yields a titanium-silicon filter cake through solid-liquid separation; 3) After washing the titanium-silicon filter cake once, it is placed in a dilute acid solution containing a complexing agent for a complexation reaction, so that Fe³⁺… + Al³ + Ca² + Ions form stable complexes. After the reaction, the filter cake obtained by solid-liquid separation is washed a second time to obtain a purified filter cake. 4) The purified filter cake is vacuum dried, calcined and crushed to obtain titanium silicon powder with a total purity of TiO2+SiO2 ≥99%.

Assembly for detecting corrosion or the possibility of corrosion of a metallic substrate. The invention relates to an assembly (1, 10) comprising: - a metallic substrate (2, 20), and - a corrosion detection coating (3, 30), comprising: • a first layer comprising colloidosomes (41, 43) comprising (i) a core (410) formed by a liquid medium (4100) comprising a metallic cation (4101), and an ion (4102) H+ or OH-, distinct from the metallic cation (4101), (ii) a first envelope (411), located around the core (410), formed by polymeric particles (4110), and (iii) a second envelope (412), located around the first envelope (411) and ensuring its cohesion, formed by a pH-sensitive gel that is configured to evaporate when exposed to a pH change associated with corrosion of the substrate (2, 20) so as to cause the release of the core contents (410), and • a second layer (5,50) covering at least part of the first layer (4, 40) and in contact with it (5, 50), the second layer (5, 50) comprising a ligand (51) configured to form, with the metal cation (4101), a complex (53) capable of producing a fluorescence signal under predetermined light irradiation. Figure for the abstract: Fig. 1,

The present invention provides a charge amount measuring ion sensor and an ion forming apparatus including the same, the charge amount measuring ion sensor including: a sensing portion configured on a migration path of ions generated from an ion source for generating ions other than electrostatic ions, to sense the ions generated from the ion source in real time; a controller for displaying the ions sensed by the sensing portion; a cable for connecting the controller and the sensing portion; and a power portion for delivering a power source to the controller.

The application discloses a molecular complex catalyst with low spin Ru, which is composed of a group after deprotonation of a ligand, an active component and a supporting base, the ligand is a compound with an oxime group (-C(=N-OH)-) and capable of forming a Ru-N4 structure with a Ru ion, the active component is a Ru ion, and the active component accounts for 4.8-12.1% of the mass of the catalyst. The catalyst has high electrode stability and selectivity in a chlorine evolution reaction.

This invention provides a rare-earth ion-based superfluorescent material, its preparation method, and its applications, belonging to the field of luminescent materials technology. The superfluorescent material includes a matrix material and rare-earth ions doped therein. The matrix material is a composite fluoride or fluorine oxide, and the rare-earth ions include sensitizing ions and activating ions, which form an energy transfer pair. The superfluorescent material has a core-shell structure, and the general chemical formula of the matrix material is AxByFz or AxByOaFb. The method includes: preparing a precursor solution C containing rare-earth ions and elements A and B; preparing a precursor solution D containing only elements A and B; thermally decomposing solution C with a high-temperature solvent to obtain nanocrystalline nuclei; and forming a shell layer on the outer surface of the nanocrystalline nuclei with solution D. The superfluorescent material prepared by this invention possesses high strength, high stability, and excellent coherent luminescence properties, and can be used in luminescent devices, laser devices, bioimaging reagents, or anti-counterfeiting materials.

This invention provides a method for preparing bismuth cuprate nanopowder with molten salt assistance. Sodium bismuthate dihydrate, sodium sulfite, copper sulfate, and sodium nitrate are mixed and ground uniformly to obtain a solid mixture. The solid mixture is heated to melt the sodium nitrate, forming an ion-molten liquid environment, and the reaction takes place in this environment. During the reaction, sodium bismuthate dihydrate and sodium sulfite undergo a redox reaction to generate the transition product bismuth oxysulfate, producing hydroxide ions and forming a self-generated alkaline environment. Simultaneously, in this self-generated alkaline environment, bismuth oxysulfate and copper sulfate react to generate bismuth cuprate. The reaction product is then post-treated to obtain Bi₂CuO₄ nanopowder. The advantages of this invention are: based on the synthesis strategy of using an ion-molten liquid environment, accelerating reactant diffusion, and improving redox reaction efficiency, it can efficiently prepare bismuth cuprate nanopowder, and the preparation steps are simple, convenient, and low-cost.

This invention relates to a method for enhancing the degradation of organic pollutants in water using ferrates by regulating the micro-complexing environment with aminoacetic acid complexing agents. The method addresses the issue of insufficient ferrate removal efficiency in actual wastewater treatment. The method involves: 1. Adjusting the pH of the wastewater containing organic pollutants to 6-8; 2. Distributing the aminoacetic acid complexing agent in pure water and stirring to obtain a complexing agent stock solution; 3. Adding the complexing agent stock solution to the pH-adjusted wastewater; 4. Adding ferrate to the micro-complexed pollutant wastewater and stirring the reaction. The aminotriacetic acid or disodium ethylenediaminetetraacetate used in this invention can form a metastable Fe(VI)- ligand with ferrate ions. This ligand promotes direct electron transfer between ferrate ions and pollutants, enhancing the reactivity of ferrate with pollutants and improving the removal rate of organic pollutants.

This invention relates to the field of water treatment membrane technology and discloses a composite reverse osmosis membrane system with a graphene oxide surface passivation layer. The system comprises: a reverse osmosis membrane base layer with a dense RO layer formed by interfacial polymerization; a graphene oxide passivation layer attached to its surface; and a graphene oxide surface modification layer on the surface of the passivation layer. The passivation layer is formed by coating and vacuum filtration of a graphene oxide suspension with 5-15 layers prepared by a modified Hummer method. It can form a strong repulsion layer against high-valence ions in water through its two-dimensional pi-electron structure, achieving passivation protection of the membrane surface. The modification layer is a 2-10 nm thick film prepared by chemical vapor deposition. The modifier is one or more of ethylene, propylene, and styrene, which can improve the bonding force and mechanical strength between the graphene oxide and the membrane base layer. This invention can simultaneously improve the antifouling properties, operational stability, and service life of the reverse osmosis membrane.

A method is provided for etching a stack beneath a carbon-containing mask, the method comprising multiple cycles, each cycle being a carbon deposition step in which carbon is selectively deposited on the upper surface of the carbon-containing mask, activating the upper surface of the carbon-containing mask by colliding ions with the upper surface of the carbon-containing mask, and a hydrogen source, carbon tetrachloride (CCl4) and C x H y Cl z Flowing a deposit gas containing an organic chloride source selected from at least one of the following (wherein x>0 and z>0), and converting the deposit gas into a plasma, at least one C n Cl m The process includes a carbon deposition step of depositing carbon on a carbon-containing mask by forming radicals or ions of x>0 and z>0 with at least one H radical or ion, and an etching step of etching features within the stack.