63 results about "Nitrogen doped" patented technology

The invention discloses a preparation method and application of a high-nitrogen-doped ordered mesoporous carbon supported copper catalyst, and belongs to the technical field of catalyst preparation. The preparation method comprises the following steps: by taking cane sugar and a copper-nitrogen complex as raw materials, SBA-15 as a template agent and sulfuric acid as a catalyst, carrying out equivalent-volume impregnation, low-temperature heat treatment, 800-900 DEG C high-temperature carbonization and nitric acid / hydrofluoric acid demolding to prepare pyrrole nitrogen enriched or pyridine nitrogen enriched high-nitrogen doped ordered mesoporous carbon with a large specific surface area; the preparation method comprises the following steps: loading a copper species on high-nitrogen-doped ordered mesoporous carbon by adopting an equivalent-volume impregnation method, and reducing at 350-400 DEG C to prepare the high-nitrogen-doped ordered mesoporous carbon loaded copper catalyst. The prepared catalyst is high in nitrogen content, large in specific surface area, high in pyridine nitrogen or pyrrole nitrogen enrichment degree and uniform in copper particle dispersion and shows efficient catalytic performance in methanol oxidative carbonylation reaction, and the highest methanol conversion rate is 9.3%.

The invention provides a preparation method of a gate oxide layer and a gate, and the method comprises the steps: carrying out the rapid thermal annealing treatment of a silicon-based substrate in a nitrogen-containing gas atmosphere, which belongs to a non-destructive nitrogen doping mode, and carrying out the nitrogen pre-doping on the surface of the silicon-based substrate, so as to reduce the doping amount needed by the subsequent plasma nitrogen doping; therefore, the damage of the plasma nitrogen doping process to the SiON gate oxide layer is reduced, and the interface defect between the SiON gate oxide layer and the silicon-based substrate interface is reduced. Besides, after the nitrogen pre-doped layer is formed, the thermal oxidation process is carried out on the silicon-based substrate to form the silicon dioxide gate oxide layer, so that the damage to the SiON gate oxide layer film is reduced, and the interface defect between the SiON gate oxide layer and the silicon-based substrate interface is further reduced; moreover, the laser rapid annealing treatment can remove the intrinsic oxide layer on the surface of the SiON gate oxide layer, repair the damage to the crystal lattice of the SiON gate oxide layer caused by the plasma nitrogen doping treatment process, improve the film quality and repair the interface.

The invention relates to the technical field of acid tail gas treatment, and discloses a boron-nitrogen-doped aluminum oxide catalyst as well as a preparation method and application thereof. The method comprises the following steps: (1) mixing an aluminum source, a nitrogen source, a boron source and water to obtain a mixed solution, then adding a peptizing agent to adjust the pH of the mixed solution to be acidic, and then standing and aging; (2) drying the material subjected to standing and aging in the step (1), then roasting under protective gas, and then sequentially carrying out high-temperature nitriding and cooling; and (3) carrying out plasma treatment on the material cooled in the step (2). The catalyst prepared by the method has large specific surface area and catalytic activity, can well capture water and carbonyl sulfide, converts carbonyl sulfide into hydrogen sulfide and improves the purity and yield of enriched hydrogen sulfide, and the preparation method of the catalyst is simple and efficient.

The present application relates to a kind of for metallurgical coal gas to remove organic sulfur nitrogen-doped catalyst and its preparation method and application, including the following steps: with soluble aluminum salt as carrier, it is prepared with certain proportion of nitrogen source compound mixed solution, then precipitate completely in alkaline environment, after stirring, aging, drying treatment, with high temperature calcination nitrogen-doped Al2O3 catalyst is obtained.The catalyst has more nitrogen site, stronger nitrogen doping capacity, so that the basic center of catalyst increases, improves the catalytic activity when catalytic elimination carbonyl sulfur, while reducing the adsorption of H2S, improves H2S yield, reduces the formation of sulfur, ensures the activity and stability of catalyst, prolongs the life of catalyst.

This invention discloses a two-step method for preparing nitrogen-doped three-dimensional network phenolic resin-based composite carbon materials and their applications. The method uses an alkaline environment provided by ammonia to induce addition condensation polymerization of phenol and formaldehyde to obtain a preliminary nitrogen-doped phenolic resin. This resin is then mixed with melamine resin to achieve a second step of nitrogen introduction, and after being composited with sodium alginate, it is cross-linked with CaCl2 to obtain a three-dimensional hydrogel precursor. After carbonization and activation treatment, a nitrogen-doped porous carbon material is obtained. This material possesses both micro- and mesoporous synergy and multiple types of nitrogen functional sites, exhibiting high specific surface area capacitance and excellent cycling stability in supercapacitors. Compared with existing schemes that only use NaOH without introducing dual-source nitrogen doping (such as CN119724955A), this invention achieves synergistic optimization of structure, chemical sites, and transport through ammonia pre-doping, secondary nitrogen doping with melamine resin, and a ternary interpenetrating network. The process is simple, uses inexpensive raw materials, and is suitable for large-scale production.

Nitrogen doping an insulating layer can lower the bandgap of a magnetic storage device. It is challenging to nitrogen dope magnesium oxide (MgO). A cation can be added to allow the magnesium to hold onto the nitrogen dopant without highly oxidizing or nitriding the cation. The resulting nitrogen doped MgXO, where X is the cation, has a lower bandgap compared to a much similar barrier layer that has neither nitrogen nor a cation thus improving thermal and electrical reliabilities. The nitrogen doped MgXO is non-stoichiometric whereas comparably, an oxynitride is stoichiometric. Example cations that may be used include aluminum, titanium, vanadium, chromium, and scandium.

The invention provides a boron-nitrogen doped resin coated graphite material and a preparation method thereof, a battery negative electrode and a lithium ion battery, and the method comprises the following steps: mixing graphite and a boron doping agent, and presintering to obtain boron-doped graphite; mixing the boron-doped graphite with resin and a nitrogen doping agent to obtain composite particles, and then roasting the composite particles to obtain the boron-nitrogen-doped resin coated graphite material, the mass ratio of the graphite to the boron doping agent is 10: (0.1-2), and the mass ratio of the boron-doped graphite to the nitrogen doping agent to the resin is 10: (0.1-2): (0.1-2). The graphite-resin material with a core-shell structure is prepared by performing boron doping on the graphite material and then coating the resin doped with the nitrogen element, the loss of the graphite material caused by lithium intercalation and deintercalation is effectively inhibited by the structure, the cycle life of the material is prolonged, meanwhile, the strength of the material is also improved by boron doping, and the service life of the material is prolonged. And the cycle life and the capacity of the material are greatly improved.

This application applies to the field of new energy materials technology, providing hard carbon anode materials and their preparation methods, nitrogen-containing asphalt coatings, and sodium-ion batteries. The method includes: nitrogen-doping asphalt to obtain nitrogen-containing asphalt coatings; uniformly mixing pre-carbonized biomass powder with the nitrogen-containing asphalt coatings; and sintering the resulting mixed powder to obtain the hard carbon anode material. By doping the asphalt with nitrogen, the asphalt exhibits a larger carbon interlayer spacing after high-temperature sintering, providing sodium storage sites and facilitating rapid sodium ion migration. This improves the material's initial charge-discharge efficiency and hydrophobicity without affecting specific capacity and rate performance. Furthermore, the pre-carbonization of biomass allows for the uniform adsorption of small coating particles onto the main material. The highly graphitized coating layer formed during high-temperature sintering exhibits stronger hydrophobicity and fewer defect sites, transforming the open-pore structure into a closed-pore structure, thereby improving its initial charge-discharge efficiency, specific capacity, and cycle performance as a sodium battery anode.

The invention discloses nitrogen and phosphorus doped activated carbon loaded zero-valent iron, a preparation method thereof and an antibiotic-containing wastewater treatment method. The preparation method of the nitrogen and phosphorus doped activated carbon loaded zero-valent iron comprises the following steps: step a, treating activated carbon with hydrochloric acid to obtain activated carbon powder; step b, adding activated carbon powder into a K3PO4 solution, performing ultrasonic treatment to obtain activated carbon impregnated with K3PO4, heating the activated carbon impregnated with K3PO4 to obtain phosphorus-doped activated carbon, impregnating the phosphorus-doped activated carbon into an ammonia water solution, heating, stirring and standing to obtain nitrogen-phosphorus-doped activated carbon; and step c, adding the phosphorus-nitrogen doped activated carbon and polyethylene glycol into the FeSO4. 7H2O solution, and dropwise adding sodium borohydride to obtain the nitrogen-doped activated carbon loaded zero-valent iron powder. Nitrogen and phosphorus doped activated carbon loaded zero-valent iron adopted by the invention generates potential difference between low-valence zero-valent iron and high-valence activated carbon in a substrate with a large amount of electrolyte to form a primary battery, and generated electrons, [H] with strong oxidizing property and the like have a promoting effect on anaerobic digestion.

The application discloses a kind of adsorbents for noble metal recovery and preparation method thereof, further provide a kind to be used in the noble metal recovery method of the catalyst, wherein the adsorbents for noble metal recovery includes nitrogen-doped graphene-SiO2 Hybrid Material, the nitrogen-doped graphene-SiO2 Hybrid Material includes graphene-SiO2 Hybrid Material and nitrogen doped therein, wherein the molar amount of nitrogen in the nitrogen-doped graphene-SiO2 Hybrid Material and the total molar amount of C and Si are 1: (55-10050) ratio. The noble metal recovery adsorbent of the application can effectively recover noble metal Au in wastewater, has strong noble metal recovery adsorption capacity, high recovery rate, especially for the catalyst washing produced in the preparation process of vinyl acetate catalyst containing lower content of noble metal element Au has higher noble metal recovery adsorption capacity.

The application discloses a polypyrrone-derived carbon-coated metal catalyst and a preparation and application thereof. The catalyst prepared by the application provides a nitrogen-doped carbon layer by polypyrrone, which not only provides protection for an active center, but also promotes electron transmission between carbon layers by the conductive property of the polypyrrone-derived carbon layer itself. The polypyrrone-derived carbon-coated metal catalyst is applied to a catalytic hydrogenation reaction of chloronitrobenzene containing sulfur-containing poisons, and shows excellent activity, selectivity and stability.

The invention provides a composite hard carbon negative electrode material, a preparation method thereof and a battery, and the preparation method comprises the following steps: mixing asphalt and ion exchange resin to obtain a first precursor; performing carbonization treatment on the first precursor to obtain a second precursor; performing nitrogen doping treatment on the second precursor to obtain a third precursor; and performing plasma treatment on the third precursor to obtain the composite hard carbon negative electrode material, the battery comprises the composite hard carbon negative electrode material obtained by the method. The contradiction between the raw material cost and the performance consistency in the prior art is solved, the problem of balance between electronic conductivity and ion transmission is solved, and the problems that dead holes or closed holes exist in the surface of a traditional hard carbon material and cannot be effectively infiltrated by electrolyte, and the contact resistance is large due to particle aggregation are solved.

The application discloses a boron and nitrogen doped carbon loaded copper catalyst and a preparation method and application thereof. The catalyst is prepared by the following steps: treating carbon with excessive concentrated nitric acid, impregnating the treated carbon and copper nitrate at room temperature, grinding the obtained precursor and a nitrogen source and a boron source into powder at room temperature, and calcining the powder at a specific temperature and for a specific time. The catalyst can be applied to electrocatalytic reduction of carbon dioxide to oxygen-containing products. The catalyst mainly induces stronger metal-carbon support interaction by B and N co-doped carbon, improves the average valence state of copper to promote the CO-CO coupling route, effectively stabilizes oxygen-containing intermediates in the reaction process due to the relatively strong oxygen affinity of B, and inhibits the breaking of C-O bonds, so that high activity and high selectivity of ethanol are realized. The catalyst has excellent performance in the reduction of carbon dioxide to ethanol.

Embodiments of the present disclosure generally relate to methods of producing carbon-nitrogen allotrope nanomaterials. More specifically, the methods of the present disclosure utilize nitrogen-containing compounds as a feedstock for nitrogen doped carbon nanomaterial production. In some embodiments, a method for forming carbon-nitrogen nanomaterials includes mixing a nitrogen-rich feedstock, carbon-based feedstock, and a catalyst to form a feed solution. The method further includes injecting the feed solution into a carrier gas stream and into a heated reaction vessel. The heated reaction vessel includes a first zone and a second zone. The method further includes heating the feed solution within the first zone at a first temperature. The method further includes heating the feed solution within the second zone at a second temperature to form the carbon-nitrogen nanomaterials. The method further includes removing the carbon-nitrogen nanomaterials from the heated reaction vessel.

The invention relates to the technical field of polyaryletherketone modification, in particular to a hydrophobic high-CTI (comparative tracking index) polyaryletherketone composite material which is formed by melting, blending and compounding a material A and a material B, the material A comprises polyaryletherketone and polyether acrylate fluoride; the material B is a graft of nitrogen-doped aluminum borate modified by an amino silane coupling agent and a glycidyl acrylate compound; the composite material has hydrophobicity, the CTI value is at least 340 V, the water absorption rate is low, and the composite material can be suitable for a high-humidity environment.

The application provides preparation and application of a sulfur-nitrogen doped single-atom cobalt loaded porous carbon sulfur composite positive electrode material. The sulfur-nitrogen doped single-atom cobalt loaded porous carbon is obtained through high-temperature pyrolysis of the interaction among cobalt ions, dopamine and thiourea, the electronic structure of the active site of the catalyst is adjusted through common doping of sulfur and nitrogen, the catalytic activity of the single-atom cobalt is improved, the physical adsorption of the porous hollow carbon and the catalytic effect of the single-atom cobalt are synergistically exerted through the coordination between the porous carbon substrate and the single atom, the dissolution of polysulfides is greatly reduced, and the cycle stability of the battery is improved.

The invention discloses hydrogen storage biochar and a preparation method and application thereof.The preparation method of the hydrogen storage biochar comprises the steps that a biomass precursor is taken and subjected to air carbonization, and an air carbonization precursor is obtained; uniformly mixing the air carbonization precursor and KOH according to a ratio, raising the temperature in a nitrogen atmosphere, and naturally cooling to room temperature; dispersing the obtained product in deionized water, and adding a nitrogen-calcium doping agent; adding the obtained mixed solution into a hydrothermal reaction kettle for reaction, and cleaning and drying a product to obtain the hydrogen storage biochar. The activation resistance of the biomass to KOH is improved through the first-step air atmosphere pre-carbonization process, meanwhile, the nitrogen doping process is optimized, anchor point N elements and Ca elements are loaded through a hydrothermal method, an N doping agent is used as an anchor point, Ca loading is promoted, the reaction condition is mild, the structure of the raw material is not damaged, and the hydrogen storage performance of the biochar is remarkably improved.

The application relates to a method for preparing nitrogen-doped hollow hierarchical porous carbon spheres based on a silane coupling agent and belongs to the field of environmental protection. The method combines a soft template and a hard template and is assisted by physical activation, N-(2-aminoethyl)-3-aminopropyl trimethoxysilane is introduced into the system as a structure directing agent, a pore forming agent and a nitrogen source, and nitrogen-doped hollow hierarchical porous carbon spheres are prepared in one step. The specific surface area of the prepared material is as high as 1716.75 m 2 / g. The N-(2-aminoethyl)-3-aminopropyl trimethoxysilane can not only serve as a nitrogen source, but also promote the formation of pores in the process of synthesizing the carbon material. The adsorption amount of CO2 can reach 5.11 mmol / g under the conditions of 0 DEG C and 1 bar. The method has the advantages of simple process, low energy consumption, easy modification, high raw material utilization rate, easy availability, easy industrial application, etc. The prepared carbon material has great application potential in carbon dioxide capture before and after combustion.

The invention discloses a simple and low-cost method for preparing nitrogen (iron)-doped three-dimensional porous graphene, which comprises the following steps: by taking typha angustifolia leaves as a carbon precursor and ferric ammonium citrate as a nitrogen source and a graphitization catalyst, carrying out microwave heating pore-forming, carbonization and graphitization to obtain the nitrogen (iron)-doped three-dimensional porous graphene. The nitrogen content, the iron content, the specific surface area and the graphite degree of the material can be controlled according to the use amount of the ammonium ferric citrate and the microwave time. The material is metal-free nitrogen-doped three-dimensional porous graphene after iron removal.

The present application relates to the technical field of composite materials, and particularly relates to a nitrogen-doped carbon quantum dot composite film and a preparation method thereof.A specific technical scheme is as follows: a preparation method of a nitrogen-doped carbon quantum dot composite film, comprising the following steps: (1) using polyethylene polyamine as a nitrogen source combined with a carbon source to perform a hydrothermal reaction, and completing preparation of carbon quantum dots; (2) adding 1-(3-dimethylaminopropyl)-3-ethyl carbodiimide and N-hydroxysuccinimide or N-hydroxylthiosuccinimide into a hydrophilic modified polymer composite film to perform a reaction, and after the reaction is completed, a nitrogen-doped carbon dot modified composite film is obtained, and the nitrogen-doped carbon dot modified composite film is stored by being immersed in water.The nitrogen-doping design makes the nitrogen-doped carbon dot composite film have a good effect in capturing and enriching persistent organic pollutants such as perfluorinated compounds, and has good application value for treatment of new pollutants in the environment.

The invention relates to a technology for preparing a nitrogen-doped modified enteromorpha-based Fe / N biochar catalyst based on a calcination method, and particularly relates to a preparation technology of the nitrogen-doped modified enteromorpha-based Fe / N biochar catalyst, which is characterized in that the nitrogen-doped modified enteromorpha-based Fe / N biochar catalyst is prepared by using enteromorpha as a precursor and melamine as an external nitrogen source through the calcination method; the nitrogen-doped modified enteromorpha-based Fe / N biochar is prepared in a high-temperature oxygen-free environment. According to the preparation method of the nitrogen-doped modified enteromorpha-based Fe / N biochar catalyst developed by the method, the enteromorpha-based catalyst is modified by utilizing an external nitrogen source (melamine), the nitrogen-doped modified enteromorpha-based Fe / N biochar catalyst (N-EP-X) is prepared, more nitrogen coordination active sites are provided for iron in enteromorpha by introducing a secondary nitrogen source, and the nitrogen-doped modified enteromorpha-based Fe / N biochar catalyst is prepared. The formation of large-size iron clusters and iron particles is avoided, so that iron is more uniformly dispersed on the carbon substrate, and the number of active sites on the surface of the catalyst is further increased. The performance and catalytic activity of the carbon material are improved by doping nitrogen, so that the prepared catalyst shows excellent performance in the process of catalyzing ozone to oxidize and degrade organic pollutants which are difficult to degrade.

The invention relates to a boron-nitrogen doped fluoranthene compound as well as a preparation method and application thereof. The structural formula of the boron-nitrogen doped fluoranthene compound is as shown in a formula 1 or a formula 2, and a boron-nitrogen unit is embedded in a molecular central axis; 1, 8-dibromo-boron aza-naphthalene is used as a raw material, and the boron-nitrogen-doped fluoranthene compound and the derivative thereof are synthesized by a one-pot method through a palladium-catalyzed Suzuki-Miyaura coupling reaction. The method is simple and convenient to operate and mild in reaction condition, and has good structural adjustability and applicability; the obtained compound shows excellent photoelectric properties and can be applied to the field of organic photoelectric functional materials.

The application discloses a polyether amine catalyst and a preparation method and application thereof. The polyether amine catalyst is a carbon-nitrogen doped multi-metal catalyst, and the multi-metal includes nickel, molybdenum and aluminum. The polyether amine catalyst has the advantages of high reaction conversion rate and selectivity, long service life and simple preparation process.

Embodiments of the present disclosure generally relate to methods of producing carbon-nitrogen allotrope nanomaterials. More specifically, the methods of the present disclosure utilize nitrogen-containing compounds as a feedstock for nitrogen doped carbon nanomaterial production. In some embodiments, a method for forming carbon-nitrogen nanomaterials includes mixing a nitrogen-rich feedstock, carbon-based feedstock, and a catalyst to form a feed solution. The method further includes injecting the feed solution into a carrier gas stream and into a heated reaction vessel. The heated reaction vessel includes a first zone and a second zone. The method further includes heating the feed solution within the first zone at a first temperature. The method further includes heating the feed solution within the second zone at a second temperature to form the carbon-nitrogen nanomaterials. The method further includes removing the carbon-nitrogen nanomaterials from the heated reaction vessel.

The application provides a nitrogen-doped carbon material and a preparation method and application thereof. The method comprises the following steps: S1, purifying a coal raw material through acid washing, and then washing the coal raw material to neutral to obtain a coal-based precursor; S2, performing a hydrothermal reaction on the coal-based precursor and a saccharide compound in water, so that carboxyl functional groups of the coal-based precursor react with hydroxyl functional groups of the saccharide compound, and then drying the reaction product to obtain a composite precursor; S3, performing pyrolysis on the composite precursor to obtain a pyrolysis product; S4, performing nitrogen doping on the pyrolysis product to obtain a nitrogen-doped intermediate; and S5, performing carbonization on the nitrogen-doped intermediate to obtain the nitrogen-doped carbon material. The method provided by the application first washes the coal, then completes crosslinking of the coal and the saccharide compound in a hydrothermal process, then further stabilizes the structure in a subsequent pyrolysis stage, and then performs nitrogen doping and carbonization. The preparation method is simple, the prepared carbon material has few surface defects, and the reversible discharge specific capacity and the first coulombic efficiency are obviously improved.

The invention discloses a g-C3N4 nanosheet modified by a gold-palladium-nitrogen doped carbon ribbon as well as a preparation method and application of the g-C3N4 nanosheet. The preparation method comprises the following steps: doping UFR-NC into g-C3N4 to form a g-C3N4 / UFR-NC composite nanomaterial; the g-C3N4 / UFR-NC composite nanomaterial is used as a carrier, and gold-palladium core-shell particles are loaded on the g-C3N4 / UFR-NC composite nanomaterial, so that the g-C3N4 nanosheet modified by the gold-palladium-nitrogen doped carbon ribbon is obtained. The g-C3N4 nanosheet modified by the gold-doped palladium-nitrogen-doped carbon ribbons, disclosed by the invention, has multiple enzyme-like activities and good photocatalytic hydrogen production and hydrogen storage and release performance; meanwhile, under the enhancement effect of 808 nm near-infrared light illumination, the multi-enzyme activity is achieved, and the hydrogen storage and release performance is high. The traditional Chinese medicine composition can reduce oxidative stress injury in vivo and inhibit neuroinflammation, and has an obvious treatment effect on microglia mediated neuroinflammatory encephalopathy such as Parkinson's disease, Alzheimer's disease, cerebral trauma and cerebral apoplexy.

The invention provides a porous graphene negative electrode material and a preparation method thereof, and relates to the technical field of graphene materials, and the porous graphene negative electrode material comprises the following components in parts by mass: 10-30 parts of graphene, 2-8 parts of carbon nanotubes, 5-15 parts of a nitrogen source, 1-5 parts of nano metal particles, 0.5-3 parts of a dispersant and 50-80 parts of a solvent; the carbon nanotubes are used for connecting dispersed graphene sheet layers and inhibiting stacking of the graphene sheet layers, the nitrogen source is used for introducing nitrogen-doped defect sites into a graphene carbon skeleton, and the nano metal particles are used for constructing a graphene-metal conductive network; according to the invention, graphene and carbon nanotubes are reasonably proportioned, so that the carbon nanotubes play roles of bridges and pillars at the same time, effectively connect dispersed graphene sheet layers and inhibit stacking of the graphene sheet layers, and form a high-speed electron conduction channel penetrating through material particles, so that the internal resistance of the electrode is remarkably reduced, and the large-current charge-discharge capability of the negative electrode is greatly improved; the problem of poor conductivity caused by stacking of a traditional graphene negative electrode is solved.

The application discloses a kind of double-site doping and nitrogen-doped carbon-coated composite modified sodium iron phosphate positive electrode materials and preparation method thereof, the chemical composition of the positive electrode material is Na 4‑x M x Fe 3‑y N y (PO4)2(P2O7)@NC;Wherein, the metal element M of substitution Na site is Al and / or Mg, the metal element N of substitution Fe site is one or two or more of V, Ti, Mo, Zr;The bond energy of M and oxygen and the bond energy of N and oxygen are all greater than the bond energy of Fe-O;The molar ratio and content range of each component are as follows: the value range of x is 0.01

The invention discloses a preparation method and application of a two-step nitrogen-doped three-dimensional network phenolic resin-based composite carbon material. The method comprises the following steps: performing addition polycondensation on phenol and formaldehyde in an alkaline environment provided by ammonia water to obtain primary nitrogen-doped phenolic resin; then mixing with melamine resin to realize second-step nitrogen introduction, compounding with sodium alginate, and cross-linking through CaCl2 to obtain a three-dimensional hydrogel precursor; and carbonizing and activating to obtain the nitrogen-doped porous carbon material. The material has micro-mesoporous synergism and multi-type nitrogen functional sites, and shows high specific surface area and specific capacitance and excellent cycle stability in a supercapacitor. Compared with an existing scheme (such as CN119724955A) in which only NaOH is adopted and double-source nitrogen doping is not introduced, collaborative optimization of the structure, chemical sites and transportation is achieved through ammonia water pre-doping nitrogen, melamine resin secondary doping nitrogen and a ternary interpenetrating network, the process is simple, raw materials are low in cost, and the method is suitable for large-scale production.

The present application relates to catalyst and wastewater treatment technology, specifically relates to a catalyst of nitrogen-doped carbon nanotube coated cobalt, and a method for degrading antiviral drugs by activating peroxyacetic acid.The preparation method of the catalyst is as follows: a polyamide acid solution is uniformly mixed with a carbon nanotube dispersion solution, heated to reflux reaction, the solid after reaction is collected, the solid is dispersed in a cobalt salt solution, heated to 70-90 DEG C for stirring, so that cobalt is introduced into the solid, and the solid with introduced cobalt is pyrolyzed under inert atmosphere conditions, and the catalyst is obtained.The catalyst of nitrogen-doped carbon nanotube coated cobalt provided by the present application can not only efficiently degrade ACV, but also effectively degrade lamivudine, ganciclovir and favipiravir and other antiviral drugs.