18 results about "Radical ion" patented technology

The invention discloses imprinted resin, a preparation method thereof and application of the imprinted resin in platinum recovery. The preparation method of the imprinted resin comprises the following steps: S1, carrying out nucleophilic substitution reaction on chloromethyl polystyrene resin and N-(2-mercaptoethyl) acrylamide in a solvent, and collecting the resin after the reaction is finished; s2, adding a chloroplatinic acid solution into the resin obtained in the step S1, and carrying out a coordination reaction; s3, adding a cross-linking agent and an initiator into the system obtained in the step S2, carrying out polymerization reaction, and collecting resin after the reaction is finished; and S4, adding an eluent into the resin obtained in the step S3, and desorbing chloroplatinic acid radical ions to obtain the imprinted resin. The imprinted resin provided by the invention has high selectivity, high adsorption capacity and good regeneration performance on chloroplatinic acid radical ions, and is suitable for efficient recovery and resource utilization of platinum.

The invention provides a positive active material, a preparation method, a positive plate, a battery, a battery pack and electric equipment. The positive electrode active material comprises an inner core and a coating layer coating at least part of the surface of the inner core, in the direction away from the inner core, the coating layer comprises a first coating layer and a second coating layer which are stacked, the first coating layer comprises an active lithium salt, the second coating layer comprises a lithium-containing compound, and the porosity of the second coating layer is not higher than 5%; anions of the active lithium salt comprise inorganic acid radical ions and / or organic acid radical ions, and pKa of acid formed by the inorganic acid radical ions is not higher than 6. The positive electrode active material is composed of a special coating layer, so that the positive electrode active material has a higher first effect and a lower expansion rate, and the cycle performance, the safety performance and the energy density of the battery can be improved.

The invention belongs to the technical field of organic photochemical synthesis and catalysis, and discloses application of a spin catalyst based on a macrocyclic gadolinium complex in photooxidation reduction reaction. According to the spin catalyst, the high-spin ground state of gadolinium ions is utilized, intersystem crossing of a photoreaction intermediate singlet-state free radical ion pair to a triplet-state free radical ion pair is promoted through the paramagnetic effect, and the reverse electron transfer process is effectively inhibited. Particularly, in a water-containing system, the Gd-DOTP complex induces solvent water molecules to form an ordered hydrogen bond network through a phosphonic acid group on a ligand, a proton-mediated spin transmission channel is constructed, and efficient catalysis can be achieved under the millimole-level low concentration (0.53.0 mM). The system obviously inhibits BET, improves the organic photooxidation reduction reaction efficiency, is suitable for reactions such as halogenated aromatic hydrocarbon dehalogenation and benzene oxidation hydroxylation, and has the advantages of small catalyst dosage, good stability, wide application range and the like.

The invention relates to a small-signal free radical infrared spectrum detection method. The method comprises the following steps: 1, acting photolysis laser on a precursor molecular beam source to obtain a free radical and precursor mixed beam source; 2, infrared laser and free electron laser act on the free radical and precursor mixed beam source to obtain a semi-excitation mixed ion beam source; 3, after the semi-excitation mixed ion beam source passes through an accelerator, a flight time difference T is formed between precursor ions and free ions in the semi-excitation mixed ion beam source; 4, the ion beam source enters a deflection electric field, a first electrode of the deflection electric field applies a voltage pulse signal set according to the flight time difference T, precursor ions deflect, move and are discharged when the voltage pulse signal exists, and the ion beam source enters a detector after passing through a reflector when the voltage pulse signal does not exist. Deflection, movement and discharge of precursor ions are realized in the deflection electric field, free radical ion signals can be increased, and measurement of small-signal free radical infrared spectrum is realized.

The invention belongs to the technical field of rare earth porous materials, and particularly relates to a three-dimensional rare earth sulfate supramolecular porous material as well as a preparation method and application thereof. The preparation method of the three-dimensional rare earth sulfate supramolecular porous material comprises the following steps: mixing a rare earth ion solution, amide organic amine and sulfuric acid or sulfate or dimethyl sulfoxide to obtain a precursor solution; and transferring the precursor solution into a reaction kettle for heat treatment to obtain the three-dimensional rare earth sulfate supramolecular porous material with a chemical composition general formula of (NH4) Ln (SO4) 2. According to the rare earth sulfate porous material, rare earth ions and sulfate radicals are coordinated to form a three-dimensional anion framework, amine ions are located in pore channels and play roles in balancing charges and supporting the framework, and the prepared material has high specific surface area and adjustable pore diameter and is suitable for the fields of gas adsorption, hydrogen energy storage, catalysis and the like.

The invention discloses preparation and application of a positive electricity driving type composite nano-enzyme label. According to the composite nano-enzyme microsphere, a PDA (polydopamine) particle is taken as a core, a PEI interlayer is constructed on the surface of the PDA particle by utilizing the self-assembly effect of a positive polymer PEI, chloroplatinic acid radical ions are adsorbed, and then the composite nano-enzyme particle is synthesized in situ under the action of a reducing agent. The preparation method comprises the following steps: firstly, carrying out surface modification on PDA nano-particles by using PEI so that the PDA nano-particles can adsorb chloroplatinate ions; then, a reducing agent sodium borohydride (NaBH4) is added, platinum (Pt) nano-particles are generated on the surfaces of the PDA nano-particles through in-situ reduction, and therefore the composite nano-enzyme microspheres PDA (at) Pt with the core-shell structure are constructed. The invention further discloses application of the colorimetric-catalytic dual-signal label prepared from the composite nano-enzyme microspheres in immunochromatography detection. The novel label is good in dispersity, adjustable in particle size, high in colorimetric and catalytic performance and easy to prepare in batches.

The invention discloses a method and a device for removing vanadium from crude titanium tetrachloride, and belongs to the technical field of impurity removal and refining of inorganic matters. The method comprises the following steps: (1) preheating crude titanium tetrachloride liquid, then introducing hydrogen into the crude titanium tetrachloride liquid, and irradiating the crude titanium tetrachloride liquid by adopting ultraviolet light with the wavelength not greater than 274 nm, so that the crude titanium tetrachloride reacts with the hydrogen; and (2) evaporating the reaction product to obtain refined titanium tetrachloride and vanadium-rich slag. According to the method, hydrogen is activated through ultraviolet light to generate H free radical ions, the problem that hydrogen cannot directly react with titanium tetrachloride and vanadium oxytrichloride is successfully solved, the efficient clean reducing agent hydrogen is used for removing vanadium from titanium tetrachloride, the safety and environmental friendliness of the vanadium removal process are effectively improved, the vanadium removal effect is improved, and the method is suitable for industrial production. The titanium tetrachloride with higher purity and the vanadium-rich slag with higher vanadium grade are obtained, an excellent foundation is laid for subsequent use of the titanium tetrachloride and the vanadium-rich slag, and a new thought is provided for vanadium removal of the titanium tetrachloride.

The application discloses an electrolyte and a battery, and relates to the technical field of batteries. The electrolyte comprises a lithium salt, a solvent and an additive, and a structural formula of the additive is shown in formula (I): A ‑ selected from inorganic acid radical ions. The electrolyte provided by the application is beneficial to improving the film forming performance of the SEI film and improving the film forming quality of the SEI film.

The application discloses an electrolyte and a battery, and relates to the technical field of batteries. The electrolyte comprises a lithium salt, a solvent and an additive, and a structural formula of the additive is shown in formula (I): A ‑ selected from inorganic acid radical ions. The electrolyte provided by the application is beneficial to improving the film forming performance of the SEI film and improving the film forming quality of the SEI film.

The invention provides a method for synchronously determining the concentration of bicarbonate ions and other electrolyte ions in a blood sample. The method comprises the following steps: A) diluting the blood sample by using a diluent containing a pH buffer agent to obtain a diluted sample; b) measuring the pH value and carbon dioxide partial pressure of the diluted sample, and calculating to obtain the bicarbonate radical ion concentration of the blood sample; and C) measuring the concentration of the other electrolyte ions in the diluted sample by using other ion electrodes, and calculating to obtain the concentration of the other electrolyte ions in the sample. The problem that bicarbonate ions cannot be synchronously detected when the concentrations of various electrolyte ions in a sample are detected by an indirect method in the prior art can be solved. The method is suitable for analytical chemistry.

The invention discloses civil small-molecule water and a quality evaluation method and medical application thereof, compared with raw water, the civil small-molecule water has the advantages that the concentration increment of deuterium free radical ions in the civil small-molecule water is 0.2-0.6 ppm, and the variable quantity of the ratio of oxygen isotope < 18 > O is-0.6 to-1.6. Free hydrogen free radical ions and hydrogen isotope deuterium free radical ions in the small-molecule water are high in seepage force and dissolving capacity and weakly acidic and act on scaly stones in the kidney of a kidney stone patient, so that the surfaces of the stones are dissolved, and when the sizes of the stones become small and the stones are easily discharged out of a body along with urine of a urinary system, the scaly stone removing effect is achieved; the medicine can act on small molecular fragments forming thrombus, such as D-dimer and fibrin degradation products, in blood, so that fibrinolysis of the small molecular fragments is smaller, the small molecular fragments can penetrate through the nanoscale aperture of the glomerular filtration membrane to enter the urinary system of the kidney more easily, the content of the small molecular fragments forming thrombus in the blood is reduced, and vein and arterial thromboembolism is prevented.

The utility model relates to electrode sealing technical field provides a kind of corrosion-resistant electrode water seal sealing structure, including water seal box, the top of water seal box is equipped with water seal cover.The utility model utilizes miniature water pump, cooperates with import pipe fitting and export pipe fitting, realizes self-circulation cleaning, without manual water change or cleaning, solve the problem that traditional water seal structure needs frequent shutdown maintenance, further, by setting inverted cone hydrocyclone, the advantage of separating solid impurities using centrifugal force is realized, make impurity-containing sewage along inner wall high-speed spiral motion, density greater solid impurities are thrown to inner wall and slide down and pass through the sediment box inside filter drum, and metal salt precipitant reaction layer reacts to generate hardly soluble phosphate precipitate, realize the separation removal effect of phosphate radical ion in sewage, further, reflux water is transported to rotary spray head by water changing pipe, and the water stream of the individual nozzle of the outer wall of rotary spray head is sprayed, and the inner wall of water seal box is washed without dead angle.

The application belongs to the field of organic photochemical synthesis and catalysis technology, and discloses application of a spin catalyst based on a macrocyclic gadolinium complex in a photo-oxidation-reduction reaction. The spin catalyst utilizes the high-spin ground state of gadolinium ions, promotes intersystem crossing of a singlet radical ion pair to a triplet radical ion pair in a photo-reaction intermediate through paramagnetic effect, and effectively inhibits the reverse electron transfer process. In particular, the Gd-DOTP complex in an aqueous system induces the formation of an ordered hydrogen bond network of solvent water molecules through phosphonic acid groups on the ligand, constructs a proton-mediated spin transport channel, and can achieve efficient catalysis at a low concentration (0.5-3.0 mM) of millimolar level. The system significantly inhibits BET and improves the efficiency of organic photo-oxidation-reduction reactions, is suitable for halogenated aromatic hydrocarbon dehalogenation, benzylic oxidation hydroxylation and the like, and has the advantages of small catalyst dosage, good stability and wide application range.

The application provides a lithium adsorbent and a preparation method and application thereof. The lithium adsorbent comprises a magnetic core and a porous shell layer coated on the surface of the magnetic core, and the porous shell layer comprises LiX*2Al(OH)3*nH2O, wherein X is an inorganic acid radical ion; the average sphericity of the lithium adsorbent is greater than or equal to 0.7. The lithium adsorbent has the advantages of high adsorption capacity and good stability, can efficiently extract lithium ions from a lithium-containing solution with low lithium concentration, and can be quickly separated from the solution by an external magnetic field, thereby being favorable for reducing the cost of lithium extraction by adsorption.

The invention provides a method for recovering polyethylene glycol terephthalate by bipolar membrane electrodialysis. The method comprises the following steps: S1, providing a bipolar membrane electrodialysis device; s2, mixing and heating polyethylene glycol terephthalate and a sodium hydroxide solution, and carrying out an alkali depolymerization reaction to obtain a feed liquid containing sodium terephthalate; s3, feeding the feed liquid obtained in the step S2 into a feed liquid chamber; introducing water into the acid chamber; introducing water or a dilute alkali solution into the alkali chamber; s4, direct current is applied to the bipolar membrane electrodialysis device for electrodialysis, and terephthalic acid radical ions penetrate through the anion membrane to enter the acid chamber and are combined with hydrogen ions hydrolyzed by the bipolar membrane to form terephthalic acid; sodium ions penetrate through the positive membrane to enter the alkali chamber, and are combined with hydroxyl ions hydrolyzed by the bipolar membrane and the sodium ions to generate sodium hydroxide. According to the method, the sodium terephthalate solution generated by alkali depolymerization of polyethylene glycol terephthalate can be directly converted into high-purity terephthalic acid and recyclable sodium hydroxide in situ.

The invention provides a substituted imidazole compound, a rhenium extraction agent, a preparation method of the rhenium extraction agent and a method for separating molybdenum and rhenium, and relates to the technical field of hydrometallurgy. The structural formula of the substituted imidazole compound is shown in the specification. The substituted imidazole compound takes an imidazole ring as a molecular skeleton, the imidazole ring is modified through a substitution reaction, a plurality of aromatic ring functional groups are introduced, and the hydrophobic property, steric hindrance and electron density of a rhenium extraction agent are adjusted, so that the rhenium extraction agent is more favorable for being combined with ReO4 <-> to realize separation, and the water-phase solubility of the extraction agent is reduced, thereby reducing the dissolution loss of the extraction agent; a large-steric-hindrance aromatic ring is introduced to react with quaternization, an aliphatic chain is introduced to an N-active site, and the electrical property of an imidazole ring and the distribution condition of electron clouds are adjusted, so that a Z-bond network is formed in an organic phase and can be effectively bonded with perrhenic acid radical ions; lone pair electrons of the N-activation site and imidazole ring conjugated electron cloud cooperate with each other, so that perrhenate ions can be combined to the maximum extent.

The invention relates to a solid electrolyte, a preparation method thereof, a battery and electric equipment, and belongs to the technical field of batteries. The solid electrolyte comprises a sulfide solid electrolyte, and organic acid radical ions are doped in the sulfide solid electrolyte. The Young modulus of the sulfide solid electrolyte can be greatly reduced, so that the problems of grain boundary gaps and solid-solid contact in an all-solid-state battery are solved.

The application provides a kind of radical concentration on-line detection method and detection system, detection method includes: control module executes first detection mode, to obtain background baseline signal;Control module executes second detection mode, to obtain total signal including the background baseline signal and radical concentration signal;Wherein, second detection mode is: open the power supply of plasma source and the ionizer, close the built-in ion source of gas analysis unit, and activate the ion capture and pulse extraction function of introducer, so that the radical ion produced by ionization of ionizer is captured in introducer and then is introduced into gas analysis unit for detection in pulse mode;Control module subtracts the total signal from the background baseline signal, to obtain the radical concentration signal.The detection method and detection system provided by the application can monitor the dynamic change of radical concentration in the process in real time, and improve the accuracy of detection.