891 results about "Oxygen ions" patented technology

The invention discloses a solid oxide electrolysis reactor and system for producing hydrogen by coupling electrolytic water with combustible gas, the solid oxide electrolysis reactor comprises an anode end plate, an intermediate plate assembly and a cathode end plate which are connected in sequence, the intermediate plate assembly comprises a plurality of repetitive units, and the repetitive units are connected through connecting plates; the repeating unit comprises an electrolytic tank, the electrolytic tank comprises an anode, an electrolyte and a cathode, water vapor or a water vapor and hydrogen mixed gas is introduced into the cathode to generate an electrolyzed water reduction reaction to obtain hydrogen, and a combustible gas, water vapor and / or carbon dioxide mixed gas is introduced into the anode to generate hydrogen; and the combustible gas and oxygen ions which are generated by electrolyzing water at the cathode and are transmitted to the anode are subjected to deep oxidation reaction to obtain carbon dioxide. The cathode product gas is high-purity hydrogen or high-purity hydrogen obtained after condensation, the anode product gas is mixed gas of water vapor and carbon dioxide or mixed gas mainly comprising water vapor and carbon dioxide, and self-enriched high-concentration carbon dioxide can be obtained after condensation.

A solid oxide cell can comprise a nonporous oxide layer, one or more first porous layers, and one or more second porous layers. The nonporous oxide layer can conduct oxygen ions and can operate as a solid electrolyte. The first and second porous layers can be disposed on opposite sides of the nonporous oxide layer. The nonporous oxide layer can have a density greater than that of each of the first and second porous layers. In some embodiments, at least one of the one or more first porous layers can be infiltrated with one or more electrocatalytic oxides. Alternatively, in some embodiments, a porous functional layer can be disposed between the nonporous oxide layer and the one or more first porous layers. The porous functional layer can be effective to increase an open circuit voltage of the solid oxide cell.

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 control method and device for a micro-miniature negative oxygen ion generator, and relates to the technical field of air purification. The control method comprises the steps that air quality information is collected and preprocessed; the preprocessed air quality information is input into a machine learning model to be analyzed, and the current working efficiency of the negative oxygen ion generator is obtained; according to the current working efficiency, the electrode material is enhanced through the quantum dot material to obtain the optimal ionization efficiency; based on the optimal ionization efficiency, scanning surrounding negative oxygen ion generators through an application program to establish communication connection so as to form a distributed purification network; according to the distributed purification network, the negative oxygen ion generator shares the position, the air quality data and the working efficiency of the negative oxygen ion generator and performs task allocation; and based on task allocation, the user checks the working efficiency of the negative oxygen ion generator to implement safety protection measures. According to the invention, the electrode is enhanced by using the quantum dot material, and the ionization efficiency is optimized, so that the negative oxygen ion generator can efficiently operate in different environments.

The invention discloses a far-infrared functional photobiotin composite material, an acupoint patch prepared from the far-infrared functional photobiotin composite material and application of the acupoint patch, and belongs to the technical field of far-infrared medical materials. The photobiotin composite material is prepared from the following components in parts by weight: 25 to 45 parts of modified stone needle, 20 to 30 parts of medical stone, 10 to 20 parts of germanite, 5 to 10 parts of silicon dioxide and 5 to 10 parts of aluminum oxide. The modified stone needle is prepared by processes of bentonite interlayer chambering, LaFe perovskite / TiO2 quantum dot intercalation, Prussian blue analogue loading and the like. The composite material has a far infrared emission characteristic and can generate resonance absorption with human tissues, negative oxygen ions are released through quantum dot photocatalysis, and a porous structure adsorbs inflammatory factors, namely LaFe perovskite / TiO2 quantum dot photocatalysis and cooperates with stone needle far infrared radiation to destroy bacterial cell membranes; and the medical stone releases trace elements to inhibit bacterial activity. The prepared acupoint patch is compounded with a medical pressure-sensitive adhesive through a compression molding process to generate micro-current to stimulate a TRPV1 ion channel, so that the treatment of facial paralysis, hypertension and diabetes mellitus is realized.

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.

The invention discloses a method for simply and conveniently activating oxidation reduction of oxygen ions of a sodium ferrimanganate positive electrode material in the technical field of preparation of a sodium ion battery positive electrode material. The method comprises the following steps: S1, mixing a sodium source and a ferrimanganese metal source to obtain a mixed solution; s2, quickly stirring in a water bath kettle, adding concentrated nitric acid, and taking out a separated solid; s3, drying the solid to obtain powder; s4, pre-sintering the powder in a tubular furnace, sintering at high temperature, cooling to room temperature along with the furnace temperature, and taking out to obtain a sintered product; s5, grinding into powder, and sieving to obtain the sodium ferrimanganate positive electrode material (NaxFeyMnzOn), wherein 0.44 lt; xlt; 0.8, 0 lt; yt; Yt; 1, 0lt; zlt, zlt; 1, 1.6 lt; nlt; 2.2. The sodium ferrimanganate positive electrode material prepared by the method has relatively high purity and good crystallinity, various elements are uniformly distributed, and nitric acid is introduced to provide a strong oxidation environment, so that the content of Mn < 4 + > is increased, an oxidation-reduction reaction of oxygen ions in a layered metal oxide is triggered in a charge-discharge process, and the discharge specific capacity of the material is remarkably improved.

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 a two-component negative oxygen ion water-based paint decorative sheet and a preparation method thereof, the two-component negative oxygen ion water-based paint decorative sheet comprises a base material and a functional coating coated on the surface of the base material, and the functional coating is formed by mixing and curing a component A and a component B; the component A is prepared from the following substances in parts by weight: 50 to 70 parts of water-based paint, 10 to 20 parts of cerium-doped modified tourmaline powder and 5 to 15 parts of microcapsules; negative oxygen ions are released through the piezoelectric effect and the pyroelectric effect in the pure physical process, cerium-doped modified tourmaline powder is added into the bi-component polyurethane emulsion water-based paint, after full stirring, the water-based paint is prepared, and the water-based paint is prepared. The nano-scale tourmaline is uniformly coated on a decorative artificial board with primer, and after curing, the nano-scale tourmaline effectively contacts with air, can stably release negative oxygen ions, and does not generate negative effects on human bodies.

The invention discloses an air purification composition capable of generating negative oxygen ions. The air purification composition is prepared from the following raw materials in parts by weight: 800 to 1000 parts of pine needle extract powder, 87 to 107 parts of cacumen biotae extract powder, 58 to 68 parts of perilla frutescens extract powder, 58 to 68 parts of lucky tree extract powder, 58 to 68 parts of cactus extract powder, 58 to 68 parts of ampelopsis grossedentata leaf extract powder, 25 to 40 parts of biotite powder and 170 to 230 parts of expanded vermiculite powder. The attapulgite-sepiolite-rectorite composite material is prepared from the following components in parts by weight: 170 to 230 parts of attapulgite powder, 170 to 230 parts of sepiolite powder, 170 to 230 parts of rectorite powder and 30 to 40 parts of vinasse powder; the negative oxygen ion generator can effectively release negative oxygen ions, has the advantages of being environmentally friendly, safe, healthy and the like, can decompose indoor pollutants such as formaldehyde and ammonia, and plays an important role in purifying the indoor environment and reducing pollution.

The invention provides a titanium alloy surface low-temperature diffusion coating integrated composite hardening insulation treatment method. The method comprises the following steps that firstly, acid pickling and etching are conducted; 2, the titanium alloy sample subjected to acid pickling and drying is put into diffusion coating integrated composite treatment equipment, and the diffusion coating integrated composite treatment equipment is provided with a high-energy pulse plasma power source and an HIPIMS power source; 3, kilovolt-level bias sputtering is carried out, and nitrogen ions or oxygen ions are injected in advance; 4, high-power pulse ion nitriding or oxygen permeation treatment is carried out; 5, sputtering to generate a TiWN-based priming coat: starting a titanium target and a tungsten target, controlling the titanium target and the tungsten target by a direct current cathode, and preparing a gradient multi-element TiWN coating by regulating and controlling the ratio of Ti to W; and step 6, sputtering to generate a TiWCN base surface layer. Nitriding or oxygen permeation strengthening of a titanium alloy sample matrix and deposition operation of a high-hardness insulating coating are completed in diffusion coating integrated composite treatment equipment, and diffusion coating integrated and efficient treatment can be achieved. And nitriding or oxygen permeation treatment is carried out at a low temperature, and the titanium alloy matrix is almost free of deformation.

The invention relates to the technical field of powder coating preparation, in particular to an air purification negative oxygen ion thermosetting powder coating preparation technology which comprises the steps that thermosetting resin, a curing agent, filler, pigment and a plastic additive are stirred and mixed in a mixing tank according to a first preset proportion; extruding and tabletting the mixed thermosetting resin mixture; judging whether the mixing of the thermosetting resin mixture meets a preset standard or not according to the variable coefficient value of the section of the mixture sheet; crushing and grinding the mixed material sheets meeting the preset standard to obtain thermosetting resin mixed material powder; judging whether grinding meets a preset standard or not according to the granularity uniformity evaluation value; mixing and grinding the mixed material powder meeting the preset standard and the negative ion synthetic powder according to a second preset proportion; and sieving the ground negative ion mixed powder to obtain the negative oxygen ion thermosetting powder coating. By strictly controlling the process parameters, the product quality is improved.

The invention discloses a B-site high-entropy solid oxide electrolytic cell cathode material and a preparation method and application thereof, the cathode material is of an A2B2O6 type high-entropy perovskite structure, and the chemical formula of the cathode material is Sr2FeTi < 0.2 > Cr < 0.2 > Mn < 0.2 > Mo < 0.2 > Co < 0.2 > O < 6 >. The cathode material is an electron and ion mixed conductor and has good conductivity, the ion radiuses of B-site elements are close, the ion size difference is small, and a stable single-phase structure can be formed easily. The Sr2FeTi0. 2Cr0. 2Mn0. 2Mo0. 2Co0. 2O6 high-entropy perovskite material can transmit oxygen ions and electrons at the same time, can effectively reduce the polarization resistance of a cathode of an oxygen ion conduction type solid oxide electrolytic cell, improves the electrolytic current density of the electrolytic cell, can keep good structural stability in a pure carbon dioxide atmosphere, and can effectively enhance the output stability of the cell.

The invention discloses multi-component composite doped zirconium oxide powder for a solid fuel cell and a preparation method of the multi-component composite doped zirconium oxide powder, and belongs to the technical field of solid fuel cells. The process comprises the following steps: mixing zirconium oxychloride with a stabilizer soluble salt and a composite additive, adding water, heating and hydrolyzing to obtain a mixed solution, continuously stirring, adjusting the pH value, filtering, cleaning and drying to obtain mixed powder A; zirconium oxychloride, carbon nanotubes and an organic framework are mixed and modified, a modified mixture, yttrium oxide, calcium oxide and magnesium oxide are mixed and ground, and mixed powder B is obtained; and grinding and mixing the mixed powder A and the mixed powder B, and carrying out two-step calcination to obtain the multi-component composite doped nano zirconium oxide powder. The nano zirconium oxide powder disclosed by the invention has relatively high oxygen ion conductivity, can keep excellent stability in a high-temperature environment, meets the high-performance requirements of various solid fuel cell electrolytes, and has good market competitiveness.

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 belongs to the field of semiconductors, and particularly relates to a wafer with an amorphous phase carbon film deposited on the back face and a preparation method and application of the wafer. An amorphous phase carbon film is deposited on the back surface of the wafer. According to the invention, the selectivity of depositing the film on the back of the traditional wafer can be improved. Compared with SiN, SiO and an amorphous phase carbon film, the stress and the warping of the amorphous phase carbon film are similar to those of the SiN under the condition of the same film thickness, and the stress neutralization (along with the accumulation of the film thickness and the increase of the process temperature, the requirements of higher stress and warping can be met) of a process sheet or a structure sheet with relatively large warping can be realized. The amorphous phase carbon film has good adhesive force at a high temperature, and deposition of a thin film with the thickness of # imgabs0 # or above can be achieved. SiN and SiO thin films deposited on the back surface of the wafer need to be removed through a (phosphoric acid or hydrofluoric acid) wet method, an amorphous phase carbon film can be removed in situ by reacting with oxygen ions under plasma excitation, and a byproduct is mainly carbon dioxide.

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;

To provide a reductant capable of preventing or suppressing deterioration in performance and lifespan of an oxygen carrier while enabling relatively easy thermal control.SOLUTION: According to one aspect of the present invention, a reductant is provided which generates oxygen defects upon contact with a reducing gas containing hydrogen and eliminates the oxygen defects upon contact with an oxidizing gas containing carbon dioxide. The reductant contains an oxygen carrier having oxygen ion conductivity and latent heat storage particles. The oxygen carrier includes at least two metal elements belonging to Group 3 and Group 4 of the periodic table, including lanthanoids and actinoids, or includes Fe. The latent heat storage particles comprise a core particle and a coating part covering at least a portion of the core particle. The core particle is composed of an element selected from the group consisting of Al, Mg, Si, Ti, Fe, Ni, Cu, Zn, Sn, Sb, Ga, In, Bi, Pb, and Cd, or an alloy or compound mainly composed of the element, having a melting point of 100°C or higher.SELECTED DRAWING: Figure 1

The invention discloses a solid oxide electrolytic cell, a solid oxide electrolytic reactor and a method and system for preparing ammonia and fuel by using the solid oxide electrolytic cell and the solid oxide electrolytic reactor. The solid oxide electrolytic cell comprises an anode, an electrolyte and a cathode, the cathode inputs mixed gas composed of air or nitrogen and water vapor, electrochemical deoxidation reaction is carried out, and ammonia feed gas containing hydrogen and nitrogen is generated; the anode inputs mixed gas composed of combustible gas, water vapor and / or carbon dioxide, the mixed gas and oxygen ions transmitted from the cathode to the anode are subjected to partial oxidation reaction, and synthesis gas containing hydrogen, carbon monoxide and carbon dioxide is generated. The solid oxide electrolysis reactor comprises an anode end plate, an intermediate plate assembly and a cathode end plate which are connected in sequence; the intermediate plate assembly includes a number of repeating units. The electrolytic deoxidation reaction and the partial oxidation reaction of the combustible gas are coupled, so that the electrolytic power consumption is greatly reduced, the low-cost green preparation of the raw material gas for synthesizing ammonia and synthetic fuel is realized, and the production cost of green ammonia and green synthetic fuel is further reduced.

The invention discloses a negative oxygen ion catalyzed SPC stone-plastic floor material and a preparation method and equipment thereof, and belongs to the technical field of stone-plastic floors, the negative oxygen ion catalyzed SPC stone-plastic floor material is prepared from polyvinyl chloride resin, ground calcium carbonate, nano titanium dioxide, tourmaline, nano magnesium oxide, a plasticizer, a lubricant, a surfactant and a stabilizer. According to preparation of the negative oxygen ion catalyzed SPC stone plastic floor material, porous anatase crystal type nano carbon dioxide particles doped with rare earth elements, tourmaline containing iron and manganese elements and nano magnesium oxide particles are added, so that the prepared negative oxygen ion catalyzed SPC stone plastic floor material has the function of releasing negative ions; the SPC stone-plastic flooring material has good air purification effect and good photocatalytic effect, overcomes the defects of low air purification effect and single function of the existing SPC stone-plastic flooring material, and is simple and feasible in preparation method and suitable for large-scale industrial production and application.

The invention relates to a proton ceramic fuel cell composed of an oxygen site F-doped perovskite electrode and an electrolyte, and belongs to the technical field of fuel cells. According to the invention, an F element is doped into a perovskite oxygen electrode and an electrolyte material of the proton ceramic fuel cell, and a traditional BaCo < 0.4 > Fe < 0.4 > Zr < 0.1 > Y < 0.1 > Y < 0.1 > b < 0.1 > O < 3-delta > (BZZY ) oxygen electrode, a traditional BaZr < 0.1 > Ce < 0.7 > Y < 0.1 > Y < 0.1 > b < 0.1 > O < 3-delta >-0.1 F < 0.1 > (BCFZYF) oxygen electrode, a traditional BaZr < 0.1 > Ce < 0.7 > Y < 0.1 > Y < 0.1 > b < 0.1 > O < 3-delta >-0.1 F < 0.1 > (BZCYY < bF >) electrolyte and a traditional Ni-BZCYY < bF >) hydrogen electrode are optimized. F is doped into an oxygen site of the perovskite oxide, so that B-site metal-oxygen bond energy can be reduced, the activity of lattice oxygen and the transmission rate of oxygen ions and protons can be improved, the strategy can be applied to an electrode and an electrolyte at the same time, ion migration and interface compatibility at the interface of the battery electrode and the electrolyte are remarkably optimized, and the performance of the battery is improved. And the overall power density of the battery 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 belongs to the technical field of air quality detection, and particularly relates to a negative oxygen ion detection device which comprises a base and a controller installed on the end face of the base, a detection box is arranged on one side of the upper portion of the base, a negative oxygen ion detection assembly is arranged in the detection box, and the negative oxygen ion detection device further comprises an air inlet box arranged on the upper portion of the base, the air inlet box is arranged in the detection box and located on one side of the detection box, the air inlet box is provided with an air inlet assembly, and the top of the air inlet box is provided with a quality detection unit for detecting air quality. According to the invention, the concentration of negative oxygen ions in the air can be detected, the negative oxygen ion concentration detection work can be automatically started based on the air quality variation, the detection timeliness is ensured, unnecessary detection is reduced, the burden of the filtering mechanism and the detection assembly is reduced, and long-term stable detection of the negative oxygen ion concentration is facilitated.

The invention discloses a metal ceramic composite structure membrane and a preparation method and application thereof, and belongs to the technical field of composite membrane preparation. The method comprises the following steps: firstly, cutting a foam metal net to a target size, ultrasonically cleaning and drying; then dipping in slurry containing a metal oxide, and airing to obtain a porous metal net of which the surface is covered with the metal oxide; mixing the ceramic powder with a solvent and an adhesive to prepare ceramic powder slurry; and filling pores of a porous metal net with the mixture in a vacuum filtration manner, airing, carrying out dry-pressing molding, and sintering in an inert atmosphere containing hydrogen. According to the prepared metal ceramic composite structure film, on the premise that metal communication is kept, the metal phase volume ratio (lt) is reduced to the maximum extent; the metal ceramic composite structure has high mechanical strength and has a good application prospect in the aspect of mixed conductor membrane reactors due to the fact that the metal ceramic composite structure has high mechanical strength, and the function of a ceramic phase (such as conduction of oxygen ions, protons and the like) is enhanced.

The invention relates to the technical field of leather auxiliaries, and discloses a modified negative oxygen ion leather finishing agent and a preparation method thereof.The modified negative oxygen ion leather finishing agent is obtained by adding negative oxygen ion nanometer liquid, modified polyurethane, epoxy chitosan, polyethylene glycol and water into a stirrer and stirring. In the stirring process, a terminal hydroxyl group in the modified polyurethane and an epoxy group in the epoxy group chitosan are subjected to a ring-opening reaction and are cross-linked with each other, and a stable molecular contact network is formed and is better adsorbed on the surface of leather, so that the leather finishing agent is better adsorbed on the surface of the leather. The sulfur element and the phosphorus element in the modified polyurethane have better flame-retardant effects, and form a flame-retardant system together with a chitosan molecular structure in the epoxy chitosan. Chitosan and quaternary ammonium salt in the epoxy chitosan have a relatively good antibacterial effect.