708 results about "Oxygen ions" patented technology

The invention relates to the technical field of air purification, and discloses a negative oxygen ion generator and a method thereof.The negative oxygen ion generator comprises an external shell used for providing installation positions for related parts; the power supply input module is mounted in the external shell, is internally provided with a filtering unit, and is used for receiving external direct current; the direct current and alternating current inversion module is electrically connected with the output end of the power supply input module, is internally provided with a switch assembly and is used for converting the direct current into high-frequency alternating current; a primary winding, a secondary winding and a feedback winding are arranged in the boosting transformer. A boosting transformer is arranged between a direct current and alternating current inversion module and a high-voltage double-voltage rectification module, so that the voltage is effectively boosted, more importantly, the magnetic field coupling characteristics of a primary winding and a secondary winding are utilized, reliable electrical isolation is constructed, and a physical path from a high-voltage side circuit to a low-voltage side circuit is blocked.

The invention discloses a method for preparing a micro-particle-size negative oxygen ion purifying agent from a nano material, and relates to the technical field of air purifying agents, the method comprises the following preparation steps: step 1, pouring 5-6.5 g of modified tourmaline powder and 10 g of an amino acid-nano particle compound into 200 mL of deionized water, then adding 0.5-0.54 g of polyvinylpyrrolidone, carrying out ultrasonic treatment for 30-40 min, then adding 0.5-0.54 g of polyvinylpyrrolidone into the deionized water, carrying out ultrasonic treatment for 30-40 min, and carrying out ultrasonic treatment for 30-40 min; carrying out ball milling until the particle size is 1-5 microns; 2, adding 2-2.6 g of a chitosan solution with the concentration of 1% after ball milling, adjusting the pH value of the system to 6, and stirring at 50 DEG C for 1 h; according to the method for preparing the micro-particle-size negative oxygen ion purifying agent from the nano material, tourmaline powder is modified, so that the surface hydroxylation degree of the tourmaline powder is improved, lattice defects are increased, the negative oxygen ion release efficiency is remarkably improved, meanwhile, the tourmaline powder is compounded with white carbon black, interface charge conduction can be enhanced, and continuous release of negative oxygen ions is further promoted.

Disclosed in the present invention is an oxygen generator with negative oxygen ions and the diffused oxygen system. The oxygen generator comprising an equipment housing, a control circuit board, a power supply device, a compressor and a plurality of molecular sieve assembly arranged in the equipment housing. It divides the compressed gas output by the compressor into two paths, one of which is used to prepare oxygen, and the other is directly used for the gas-excited negative oxygen ion generator to prepare negative oxygen ions. In this way, the negative oxygen ion generator have sufficient pressure gas to prepare a sufficient amount of negative oxygen ions. In addition, the oxygen interface of the oxygen generator is not occupied, and the pressure of the oxygen interface is not limited, thereby meeting various oxygen needs such as oxygen inhalation.

The invention relates to the technical field of air purification, in particular to a negative oxygen ion dynamic air purification strategy and system.The negative oxygen ion dynamic air purification strategy comprises the following steps that on the basis of linkage of particulate matter concentration and multiple environmental parameters, influences of airflow, pressure, temperature and humidity and personnel flow on particulate matter distribution are analyzed, and formaldehyde and harmful gas parameter fluctuation trends are combined; pollution changes and equipment response grades are judged, the release path, frequency and power of the negative oxygen ion generator are adjusted, and ion release adjustment parameters are output. Data such as multi-element particulate matter concentration, airflow state, environmental pressure, temperature and humidity, personnel flow and the like cooperatively participate in monitoring and judgment, particulate matter grading characteristics are linked in real time through environmental dynamic factors, fluctuation trends of multiple pollutants in air are jointly calculated, high-risk change stages are actively recognized, purification response grades are dynamically output, and the purification effect is improved. The ion release direction and power are adjusted in an automatic linkage mode, the purification response changes along with space pollution hot spots, and diversified pollution distribution scenes are effectively covered.

The invention discloses an electric flame stove capable of eliminating ozone. The electric flame stove comprises a stove body, a magnetic energy box mounted at the upper end of the stove body and a burner mounted in the stove body, and a magnetron is arranged at the microwave emission port in the magnetic energy box. The high-frequency electromagnetic wave is adopted to excite the initial plasma, so that the temperature and efficiency of the electric flame are improved, and the high-temperature cooking requirements such as stir-frying in a kitchen are met; the reaction between active particles (oxygen ions O or oxygen atoms O) in plasma and ozone is accelerated by adopting high-frequency electromagnetic waves, and finally ozone molecules are decomposed and reduced, so that ozone overflow is inhibited; in a non-pot state, the density of the plasma in the double hearths is small, the microwave switch is switched off, the magnetron stops working, and microwave leakage is completely eradicated from the source; the cooling tank is annularly distributed on the side wall of the second hearth to form a continuous gas barrier surrounding the second hearth, so that the magnetron and the side wall of the second hearth are prevented from being influenced by ultrahigh temperature.

The invention provides a terahertz intelligent energy cabin, and relates to the technical field of health maintenance equipment. The energy cabin comprises a cabin body, and a plurality of functional modules in the cabin, such as a massage assembly, a terahertz wave emitter, a quantum biological resonance assembly, a gyromagnetic recuperation assembly, a negative oxygen ion generation assembly, a biological brain wave monitoring assembly, a sound therapy system, a micro-pressure oxygen supply assembly and the like. All the modules are electrically connected with the intelligent control module, the intelligent control module integrates a multi-mode fusion intelligent evaluation model and a self-adaptive closed-loop regulation and control model, multi-source data can be processed, parameters of all assemblies can be dynamically adjusted, and cooperative operation of the system is guaranteed. According to the invention, the multi-functional module is integrated, cooperative operation and dynamic regulation and control are realized through the intelligent control module, multi-dimensional, personalized and intelligent comprehensive recuperation can be realized, and the modern health management requirements are met.

The invention relates to the technical field of air purifying materials, in particular to a negative oxygen ion air purifying agent and a preparation method thereof.The negative oxygen ion air purifying agent is prepared from ethyl cellulose, hydroxyethyl acrylate, citric acid activated bentonite, beta-cyclodextrine, neodymium-doped tourmaline powder, modified plant essential oil, propylene glycol and carboxymethylcellulose. Sodium polyaspartate and a pH buffer agent. According to the invention, through a triple technology of terpene-free essential oil selection, metal ion modification and beta-cyclodextrin coating, the problem of negative ion consumption of traditional essential oil is avoided, and the release amount and durability of negative oxygen ions are remarkably improved through a catalytic synergistic effect.

The invention discloses an ion slurry disinfection and purification module for air disinfection and purification equipment, and relates to the technical field of ion disinfection and purification, and the ion slurry disinfection and purification module is technically characterized by comprising two mounting seats, an ion slurry generator is mounted between the two mounting seats, and a mounting cover plate covers the upper parts of the mounting seats; the ion slurry generator comprises a metal sheet layer A, a first glass layer, a high-pressure composite sheet layer, a second glass layer and a metal sheet layer B which are arranged in sequence; the high-voltage composite sheet layer is formed by compositing a titanium alloy sheet and a PZT green sheet, the PZT green sheet and the titanium alloy sheet are obtained through hot pressing, the temperature is 850 DEG C, the pressure is 10 MPa, and the thicknesses of the titanium alloy sheet and the green sheet are both not larger than 0.1 mm. The technical effects are that the high-voltage composite sheet design is adopted, 20kHz ultrasonic waves are excited in cooperation with 12kV resonance voltage, an acoustic-electric coupling ionization field is formed, and the high-voltage composite sheet layer is formed. The concentration of the negative oxygen ions is greatly improved;

This invention discloses a photocatalytic negative oxygen ion near-field purification eyeglass component and its preparation method. The component includes an eyeglass substrate (lens or frame). From the inside out, the outer surface of the substrate is sequentially provided with a functional film layer, a plasma activation layer, and an outermost composite film layer of nitrogen-doped anatase titanium dioxide supported on a Pt-Au-Ag-Pd quaternary noble metal. This film is responsive to the entire visible light band from 400nm to 700nm and stably generates ≥1000 negative oxygen ions / cm³ within a 30cm near-field breathing zone of the wearer's mouth and nose under normal lighting conditions. It also achieves antibacterial and bacteriostatic effects, degradation of harmful gases, surface self-cleaning, and anti-fogging functions. This invention optimizes the film structure, allowing the photocatalyst to directly contact air and visible light, maximizing catalytic efficiency. It is also compatible with lenses and frames, integrating multiple effects such as eye protection, purification, antibacterial properties, and anti-fogging. The process is universal and mass-producible.

The invention relates to the technical field of decorative paper, in particular to decorative paper capable of releasing negative oxygen ions permanently, a preparation method and a control system.The decorative paper comprises a decorative paper base material and a composite coating, and the composite coating is sequentially arranged on the base material in a stacked mode from inside to outside and comprises an adhesion bottom layer, a gradient function core layer and a wear-resistant transparent surface layer; the gradient functional core layer is composed of at least one functional lower layer and a functional upper layer, and the concentration of negative oxygen ion materials in the functional upper layer is higher than that of the functional lower layer. The problems that in the prior art, the negative oxygen ion release function is rapidly attenuated, the coating performance is insufficient, and the product quality is unstable due to low control precision in the preparation process are solved.

The invention relates to a preparation method of a low-resistance silicon carbide coating based on a molybdenum / tantalum metal electrode, which comprises the following steps: S1, substrate pretreatment: carrying out mechanical micro roughening, ultrasonic cleaning and drying on a Mo / Ta electrode, and then reducing to remove an oxidation film; s2, Si-rich nucleation: taking methyl trichlorosilane as a Si / C common source, hydrogen as carrier gas / reducing gas and nitrogen as an n-type doping source for gas supply to form a compact nucleation layer; s3, main body deposition is conducted, specifically, the temperature is adjusted to 1140-1180 DEG C, the total pressure is maintained to be 80-120 Torr, and gas supply continues to be conducted for deposition; s4, annealing and dechlorination: stopping methyl trichlorosilane, keeping hydrogen and nitrogen flushing, and then annealing; and S5, cooling and shaping: cooling and taking out the sample annealed in the step S4, and adjusting the surface roughness to a set value to obtain the low-resistance silicon carbide coating on the Mo / Ta electrode. Compared with the prior art, on the premise that conductivity is not sacrificed, atomic oxygen / oxygen ion resistance, sputtering resistance, thermal cycling stability and the like of the Mo / Ta electrode can be remarkably improved.

The invention provides a magnesium oxide board capable of releasing negative oxygen ions for a long time and a preparation method of the magnesium oxide board, and relates to the technical field of building materials, the magnesium oxide board comprises a magnesium oxide board base material and nano microcapsules uniformly dispersed in the magnesium oxide board base material, the core of each nano microcapsule is high-activity negative ion powder, the high-activity negative ion powder is coated with SiO2, and the core of each nano microcapsule is coated with SiO2. A shell of the nano microcapsule is made of a humidity response material containing a photocatalytic material. According to the negative oxygen ion long-acting release technology based on combination of light-humidity double-response collaborative triggering and the nano microcapsules, the technical problems that traditional negative oxygen ion material release depends on a single environment condition, and release is uncontrollable due to direct exposure of the negative oxygen ion material are solved, intelligent on-demand release of negative oxygen ions is achieved, and the service life is remarkably prolonged.

The invention discloses a portable air curtain oxygen cabin, and belongs to the field of oxygen cabins. Comprising a flexible cabin body and a gas control assembly, the flexible cabin body is composed of a soft ventilation pipeline framework and a closed environment-friendly film, the soft ventilation pipeline framework is composed of a plurality of sets of independent and interconnected closed ventilation pipelines, and the soft ventilation pipeline framework is connected with the closed environment-friendly film through high-frequency welding; the soft ventilation pipeline framework is connected with the gas control assembly through the gas pipe connector. The gas control assembly comprises a gas control cabinet, a negative oxygen ion pump and a negative oxygen ion generator are mounted in the gas control cabinet, and the gas control cabinet is connected with the closed environment-friendly film through a quick connector; and an integrated pump with the functions of inflating / exhausting air to / from the soft ventilation pipeline framework and generating oxygen is arranged in the gas control cabinet. According to the portable air curtain oxygen cabin, the flexible oxygen cabin can be freely folded and unfolded through inflation and deflation actions of the air control cabinet, can be folded and transported, can be matched with various beds in a family or outdoors for use, is rich in scene, and enables anion oxygen therapy to be more convenient.

The invention discloses a hotel guest room air optimization high-concentration negative oxygen ion device and a using method thereof, and relates to the field of air optimizing.The hotel guest room air optimization high-concentration negative oxygen ion device comprises a negative-ion generator and a shell fixedly connected to one side of the negative-ion generator, an air inlet fixedly communicates with one side of the negative-ion generator, a sealing mechanism is installed in the shell, and an air outlet fixedly communicates with the side wall of the shell. After air enters the negative ion generator through the air inlet, negative oxygen ions are stably generated, basic guarantee is provided for air purification, a moving plate can be driven to accurately adjust the opening size of a ventilation opening by means of transmission structures such as an air cylinder, a gear ring and a third gear according to the real-time air quality of a guest room, and the moving plate is prevented from shifting through cooperation of a limiting block and a limiting hole; the air volume and the concentration of the negative oxygen ions can be adjusted according to needs, the problem that purification is insufficient or resources are wasted under the fixed ventilation quantity is solved through the design, an adaptive purification scheme can be provided for guest room environments with different pollution degrees, and the pertinence and efficiency of air purification are improved.

The invention discloses an air conditioner which comprises an indoor unit and an outdoor unit. The indoor unit comprises a first air outlet and a negative oxygen water ion generating device. The first air outlet is configured to blow air-conditioning air out of the indoor space. The negative oxygen water ion generating device is arranged beside the first air outlet and is configured to provide ions for the indoor space. Wherein the air outlet direction of the air conditioner air and the air outlet direction of ion air blown out by the negative oxygen water ion generating device are independently adjusted, the negative oxygen water ion generating device is provided with an independent first air duct, and the first air duct is configured to provide air for ionization for the negative oxygen water ion generating device. The outdoor unit comprises an oxygen generator, and the oxygen generator is configured to provide oxygen for the first air duct. And under the condition that the oxygen concentration is smaller than a preset first limit value, the oxygen generator is started to provide oxygen into the first air duct. According to the air conditioner, independent control over air conditioning air and ion air can be achieved, the content of negative oxygen ions in a room can be adjusted, and the air purification effect and the human body health care effect are improved.

A sensor element for detecting a concentration of a specific gas in a measurement-object gas, the sensor element includes: an element body including an oxygen-ion-conductive solid electrolyte layer, and including a measurement-object gas flow section inside that introduces the measurement-object gas and allows the measurement-object gas to flow through; an adjustment pump cell including an inner adjustment electrode provided in an oxygen concentration adjustment chamber of the measurement-object gas flow section; and a measurement pump cell including a measurement electrode provided in a measurement chamber that is located downstream of the oxygen concentration adjustment chamber in the measurement-object gas flow section; wherein, letting Ve [mm3] be a volume of the measurement electrode, and Vr [mm3] be a volume of the measurement chamber, and defining a volume ratio as Fv=Ve / (Vr−Ve), 0.05≤Fv≤0.21 is satisfied.

1. Name of the product in this design: Micro-pressure oxygen chamber (lightweight C-type with high molecular weight negative oxygen ions). 2. Purpose of this design: for human oxygen supply, micro-pressure oxygen therapy, and health care. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A fuel electrode and systems containing the electrode are disclosed. A fuel electrode for use in a solid oxide electrochemical apparatus includes an electron conductor and an oxygen ion conductor. The electron conductor includes Nickel (Ni), Copper (Cu), and Magnesium oxide (MgO). The oxygen ion conductor includes doped Ceria. The fuel electrode includes a cermet current collector that also includes Nickel (Ni), Copper (Cu), Magnesium oxide (MgO), and doped ceria. The current collector also includes metal that is less prone to oxidization, such as certain precious metals. A solid oxide electrochemical cell includes the fuel electrode, an oxygen electrode, and a power supply in operable communication with both electrodes. A method of operating the solid oxide electrochemical cell as either a solid oxide electrolysis cell or a solid oxide fuel cell includes reducing the fuel electrode, if it becomes oxidized, without having to dismantle or replace the fuel electrode.

The present invention provides a flip-chip silver mirror light-emitting diode chip and a preparation method thereof. The preparation method comprises S10, providing an epitaxial wafer; S20, preparing a Bragg reflector layer; S30, coating a first photoresist on the surface of the Bragg reflector layer, and then removing a portion of the first photoresist on the Bragg reflector layer; S40, etching a Bragg reflector through hole using an inductively coupled plasma etching process; and S50, removing residues in the Bragg reflector through hole using an inductively coupled plasma etching process. The specific steps of step S40 include: S401, performing main reaction etching to form the Bragg reflector through hole; the specific steps of step S50 include: S501, cleaning byproducts generated after the main reaction etching; S502, performing oxygen ion etching to remove the first photoresist layer with fluorine ions remaining after the main reaction etching process; S503, performing argon ion etching to remove fluorine ions remaining on the sidewalls of the Bragg reflector through hole; and S504, removing residues in the Bragg reflector through hole.

The present invention discloses a far-infrared functional bioluminescent composite material, an acupuncture patch prepared from the composite material, and its application, belonging to the technical field of far-infrared medical materials. The bioluminescent composite material is composed of the following components by weight: 25-45 parts of modified Bianstone, 20-30 parts of medical stone, 10-20 parts of germanium stone, 5-10 parts of silicon dioxide, and 5-10 parts of aluminum oxide. The modified Bianstone is prepared by processes such as bentonite interlayer pore expansion, LaFe perovskite / TiO2 quantum dot intercalation, and Prussian blue analog loading. The composite material has far-infrared emission characteristics and can resonate with human tissue to absorb negative oxygen ions through quantum dot photocatalysis. The porous structure adsorbs inflammatory factors. The LaFe perovskite / TiO2 quantum dot photocatalysis synergizes with the far-infrared radiation of the Bianstone to destroy bacterial cell membranes; the medical stone releases trace elements to inhibit bacterial activity. The prepared acupuncture patch is compounded with a medical pressure-sensitive adhesive through a molding process to generate microcurrent to stimulate the TRPV1 ion channel, achieving the treatment of facial paralysis, hypertension, and diabetes.

The utility model discloses a water ionization structure capable of improving water detection sensitivity and a water negative oxygen ion generation device, the water ionization structure is a cover body with an opening at the lower end, the cover body is arranged at the lower part of an atomization cavity and covers an ultrasonic ceramic transduction sheet and a water level detection device, and the cover body is made of a plastic material mixed with a mixed rare earth ionization material; a first through hole corresponding to the ultrasonic ceramic transduction piece in position is formed in the top face of the cover body so that water mist can pass through the first through hole, an isolation cavity used for isolating the ultrasonic ceramic transduction piece from the water level detection device is formed in the cover body, and the top face of the isolation cavity is a closed face. According to the water ionization structure capable of improving the water detection sensitivity and the water negative oxygen ion generation device, the water detection sensitivity can be improved, the ionization and cracking effect of water molecules in the atomization cavity is enhanced, and early-stage preparation is made for the atomization fineness of the ultrasonic ceramic transduction piece.

The present application relates to a kind of gas strike type negative oxygen ion generator, including cup, cup cover and negative oxygen ion generating device, the negative oxygen ion generating device is set to the inner cavity of cup, the negative oxygen ion generating device includes generating device ontology, gas strike plate, air inlet pipe and gain pipe, the gas strike chamber is enclosed between the generating device ontology and gas strike plate, the lower end of the gain pipe is communicated gas strike chamber, upper end is communicated the air outlet of negative oxygen ion generator by water removal structure, one end of the air inlet pipe is connected with gas source, the other end is communicated with gas strike hole, the strike plate is set in the front of the gas strike hole air outlet direction, the water removal structure includes a airflow containing space, the water removal structure includes with the airflow containing space communication inlet, outlet and drain, the inlet is communicated with the gain pipe, the outlet is communicated with the air outlet, the drain is set in the bottom of the containing space, and the inlet and the outlet staggered arrangement.

The application discloses a kind of composite negative electrode material for all-solid-state iron air battery, its negative electrode and battery.The composite negative electrode material is composed of active substance and functional additive;Active substance is iron oxide doped with chemical element M, M is selected from one or more of W, Cr, Ti, Mn, V, Mo, Nb, Zr, Hf, Sn, Sb and Bi;Functional additive includes oxygen ion conductor and perovskite material.The application forms stable ion conductive network in situ during the reduction of iron oxide by doping with specific elements, and constructs multi-level composite conductive structure by combining oxygen ion conductor and perovskite, effectively solves the problem of ion transport collapse caused by phase change during the cycle of conversion-type negative electrode, significantly improves the coulomb efficiency, capacity development and cycle stability of all-solid-state iron air battery.

The utility model provides a negative oxygen ion formaldehyde removal warm air humidification air purifier, and relates to the technical field of air purification equipment. The air purifier comprises a machine body shell and a control system, the machine body shell is provided with a detachable water tank, an air outlet and an air inlet, an air purification passage is communicated between the air outlet and the air inlet, and the air purifier further comprises an annular negative oxygen ion generator circulation passage crossed with the air purification passage twice; the negative oxygen ion generating agent circulating passage is provided with a rotating device, so that a negative oxygen ion generating agent circularly moves in the negative oxygen ion generating agent circulating passage, the negative oxygen ion generating agent circulating passage sequentially comprises a first cross section, a second drying section, a second cross section and a first drying section, and the negative oxygen ion generating agent circulating passage is loaded with a particulate negative oxygen ion generating agent. And the settled negative oxygen ion generating agent is driven by a rotating device of the negative oxygen ion generating agent circulating passage to pass through the first drying section to be primarily dried and pass through the second drying section to be finally dried, so that the situation that the negative oxygen ion generating agent is kept in a humid state for a long time to breed bacteria is prevented.

The invention relates to the technical field of vehicle interior materials, and particularly discloses an interior material capable of releasing negative oxygen ions and a preparation method of the interior material. The material consists of the following components in parts by mass: 1-3 parts of a plant fiber base material, 0.1-0.2 part of rumex and 1-2 parts of a solvent. The plant fiber base material takes moxa as a main component, and loofah sponge can be added to optimize the performance. The solvent is plant hydrolat or a liquid plant extract and needs to have the rumex dissolvability, and the water content is larger than or equal to 80%. According to the invention, the rumex is fully permeated into the microporous structure of the plant fiber base material through a specific process, so that multiple functions such as continuous release of negative oxygen ions, efficient antibiosis, formaldehyde purification and intelligent regulation of temperature and humidity are realized. The material can obviously improve the air quality of a vehicle cabin and the driving comfort, and is green, environment-friendly, high in weather resistance, simple and controllable in preparation process and suitable for large-scale production.

The invention relates to the field of purification equipment, and discloses a static-free ozone-free negative oxygen ion generating device for cutting water molecular groups at a high speed, the static-free ozone-free negative oxygen ion generating device comprises a shell, an air duct is arranged in the shell, and a multi-stage collaborative cutting assembly is arranged in the shell; the multi-stage collaborative cutting assembly performs multi-stage high-speed rotary cutting through angle differential arrangement of a first-stage rotating blade, a second-stage rotating blade and a third-stage rotating blade, the multi-stage collaborative cutting assembly comprises a first rotating shaft, a transmission assembly is arranged on the side surface of the first rotating shaft, and the transmission assembly is used for driving a fan to rotate; the transmission assembly comprises gear structures which are meshed with each other to adjust the rotating speed. By arranging the structures such as the multi-stage collaborative cutting assembly, the cutting coverage rate can be increased through multi-stage high-speed rotary cutting and adaptive water molecular group gradient crushing, and the interior of the shell can be cooled while the multi-stage collaborative cutting assembly runs.

The preparation method comprises the following steps: weighing and mixing Na2CO3, Nb2O5, CeO2 and MgO according to a stoichiometric ratio, sintering by a solid-phase method to synthesize the ceramic, and separating out a supersaturated cerium-magnesium compound by adopting a dual heat treatment technology to obtain a dispersed CeMgO2-delta precipitated phase at a grain boundary position; on one hand, the precipitated CeMgO2-delta can leave a B-site vacancy and an oxygen vacancy in a NaNbO3 structure, so that the conductivity of crystal grains is enhanced; on the other hand, a precipitated phase is dispersed and distributed at a grain boundary position, a carrier channel is provided, formation of a space charge layer is broken, and grain boundary impedance is reduced; in addition, microstress is easily formed around a precipitated phase, so that crystal lattices are expanded, niobium-oxygen bonds are weakened, carrier grain boundary migration activation energy is further reduced, and the conductivity of oxygen ions is improved. The process is simple, the NaNbO3-based ceramic which is low in working temperature, high in oxygen ion conductivity and good in chemical stability is easy to obtain, and the NaNbO3-based ceramic has a wide application prospect in the field of solid-state ion conductors.

The invention provides a lithium-rich manganese-based positive electrode material and a preparation method thereof, and a secondary battery, the positive electrode material comprises a spinel phase surface transition layer, the molecular formula of the lithium-rich manganese-based positive electrode material is LixMyAaBbO2, M is Mn, Mn / Ni, Mn / Co or Mn / Ni / Co, A is lithium ion vacancy, B is oxygen ion vacancy, 1lt; xlt; 1, 1.2, 0.8 lt; yt; Yt; 1, 0lt; a < lt >; 0.1, 0 lt; blt; and 0.05%. According to the lithium-rich manganese-based positive electrode material, the preparation method thereof and the secondary battery, the lithium-rich manganese-based positive electrode material is subjected to surface treatment, in-situ construction of a surface buffer layer is realized, the stability of combination with a matrix is improved, and stable material dynamics improvement is realized.

The invention relates to the field of polymer functional composite materials, and particularly discloses a negative oxygen ion TPE three-layer plastic uptake foot pad and a preparation method thereof. The foot pad comprises a surface layer, a foam layer and a supporting layer which are sequentially arranged from top to bottom, the surface layer is composed of a modified TPE base body, the foam layer is a micro-foaming TPE elastic layer with the density being 0.4-0.7 g / cm < 3 >, and the supporting layer is a high-hardness TPE material layer with the Shore A hardness being 70-90. The modified TPE matrix is composed of TPE resin, negative oxygen ion composite master batch, 2, 4, 6-trihydroxymethyl phenol, a flexibilizer, an antioxidant, a light stabilizer, a dispersant and an inorganic filler, and the negative oxygen ion composite master batch is prepared by compounding tourmaline powder and a chitosan-organic silicon coupling graft. Through the twin-screw melt blending and three-layer co-extrusion plastic uptake molding process, the foot pad can be stable in structure, layered combination is firm, and negative oxygen ions are continuously released. The foot pad has excellent negative oxygen ion release performance, wear resistance, compression resilience and interlayer bonding strength, and is suitable for the field of automotive interiors and healthy and environment-friendly foot pads.

The invention discloses a photocatalytic coating based on a zinc sulfide / sepiolite composite material as well as a preparation method and application of the photocatalytic coating. According to the coating, a zinc sulfide / sepiolite composite material serves as a core functional component, a polymer emulsion base material, an auxiliary anion excitation material, an environment-friendly additive system and the like are combined, and efficient degradation of indoor pollutants and lasting release of negative oxygen ions are achieved through a multi-phase synergistic effect mechanism; according to the present invention, the formaldehyde decomposition rate can be significantly increased to more than 90%, the negative oxygen ion release concentration can achieve 3000-10000 / cm < 3 >, and the diversification requirements of people on the indoor air quality improvement can be met due to the radioactive concern and the light dependence of the traditional technology.