126 results about "Para-Benzoquinone" patented technology

The invention discloses a multi-component covalent organic framework material for producing hydrogen peroxide based on photocatalysis and a preparation method and application thereof.The preparation method comprises the steps that a catalyst is added into turbid liquid containing an organic monomer, styrene, etherified boron trifluoride, 2, 3-dichloro-5, 6-dichloro-p-benzoquinone and an organic solvent, the mixture is mixed to be uniform, then the mixture is frozen and subjected to a reaction under vacuum after exhausting, and the multi-component covalent organic framework material is obtained; the multi-component covalent organic framework material for producing hydrogen peroxide based on photocatalysis is obtained. The material has the characteristics of adjustable structure height, abundant active centers, good porosity and the like, can be recycled for multiple times, and is a good catalyst for H2O2 production.

The invention discloses an organic carbonyl compound electrode material, a preparation method and application of the organic carbonyl compound electrode material in a lithium ion battery, and the organic carbonyl compound electrode material is bipyridino [3 ', 2': 5, 6; the invention relates to an organic carbonyl compound electrode material, which is prepared from 2, 2 ', 3': 7, 8] quinoxaline [2, 3-i] bipyridino [3, 2-a: 2 ', 3'-c] phenazine-10, 21-diquinone and 1, 2, 4, 5-tetraamino p-benzoquinone and 1, 10-phenanthroline-5, 6-diketone through a dehydration condensation reaction. When the organic electrode material is used as a positive electrode material to be applied to a lithium ion battery, due to the fact that the organic electrode material contains a large conjugated system, the organic electrode material has good dissolution inertness in electrolyte and is beneficial to electron transmission, and therefore the cycling stability and the rate performance of the battery are improved. In addition, multiple active sites provide more redox active sites to coordinate with lithium ions, so that reversible lithium storage is realized, and relatively high capacity is shown.

The invention discloses a sodium-ion battery electrolyte with high cycle performance and a preparation method thereof, and the preparation method comprises the following steps: dissolving a sodium salt in an organic solvent, and mixing to obtain a sodium salt solution; the method comprises the following steps: adding a film-forming agent, a flame retardant and an additive into a sodium salt solution, and uniformly mixing to obtain the electrolyte, the additive is obtained by carrying out amino-propylene addition reaction on tri-n-butyl (1-propenyl) tin and 2, 3, 5, 6-tetra (amino) p-benzoquinone, and then carrying out sulfydryl-propylene addition reaction on the obtained product and 1, 2-disulfydryl-o-carborane. By optimizing the composition and the preparation process of the electrolyte, the obtained sodium-ion battery electrolyte shows excellent stability in multiple cycle tests, the capacity retention ratio is remarkably improved, and the capacity attenuation is lower than 5% when the cycle index reaches 1000 or above. The electrolyte also has good low-temperature performance and thermal stability, and can normally work in a wide temperature range of-20 DEG C to 60 DEG C.

The invention is applicable to the technical field of eutectic materials, and provides an organic macrocyclic aromatic hydrocarbon-based eutectic material and a preparation method and application thereof, the eutectic material is a metastable material EtLP6-F4TCNQ alpha, and is prepared by taking oblique tower aromatic hydrocarbon as a subject and electron-deficient 2, 3, 5, 6-tetrafluoro-7, 7, 8, 8-tetracyanodimethyl p-benzoquinone as an object, and carrying out co-crystallization on the oblique tower aromatic hydrocarbon and the 2, 3, 5, 6-tetrafluoro-7, 7, 8, 8-tetracyanodimethyl p-benzoquinone to obtain the organic macrocyclic aromatic hydrocarbon-based eutectic material. And carrying out mechanical grinding on 2, 3, 4, 5, 6, 8-tetracyanodimethyl p-benzoquinone. According to the method, two or more organic molecules are directly mixed and induced to form the eutectic structure through simple mechanical grinding operation, the method is efficient, low in cost and easy for large-scale production, the eutectic material with the metastable structure is prepared, and the metastable structure shows higher sensitivity and faster response speed in gasochromic detection.

The invention belongs to the technical field of lithium organic batteries, and provides a conjugate extended lithium-containing organic positive electrode material and a preparation method and application thereof. The synthesis process of the positive electrode material comprises the following steps: firstly, taking tetraamino p-benzoquinone as a raw material, and carrying out oximation modification reaction on the tetraamino p-benzoquinone to generate tetraamino p-oximic acid; then, carrying out composite treatment on the TAPO and a lithium source to obtain lithium tetraamino p-oximate; and finally, through a condensation polymerization reaction, further preparing to obtain the polybenzoquinone-pyrazine extended lithium oximate. Through specific chemical treatment, the organic material contains a lithium element, so that the dependence on an external lithium source (such as a metal lithium negative electrode or a lithium supplement agent) is eliminated. Through ingenious molecular design and synthesis strategies, the conductivity of the material is improved, and the rate capability, the solubility resistance, the high-temperature stability and the cycle life of the material are remarkably enhanced, so that a solid foundation is laid for long-term stable operation and high-performance expression of a battery.

The invention belongs to the technical field of electrolytic preparation, and discloses a method for preparing high-concentration hydroquinone by electrolyzing phenol. The method comprises the following steps: adding a sulfuric acid aqueous solution into an anode chamber and a cathode chamber of an H-shaped electrolytic cell, adding phenol into the anode chamber, and electrifying for electrolysis to obtain a sulfuric acid solution containing p-benzoquinone; extracting the sulfuric acid solution containing p-benzoquinone to obtain a p-benzoquinone organic solution and an anode chamber circulating sulfuric acid solution; adding a sulfuric acid aqueous solution into an anode chamber and a cathode chamber of another H-shaped electrolytic cell, adding a p-benzoquinone organic solution into the cathode chamber, and electrifying for electrolysis to obtain a sulfuric acid solution containing hydroquinone and a liquid separation extraction agent; and the obtained sulfuric acid solution containing hydroquinone is repeatedly added into the cathode chamber, so that hydroquinone obtained through reduction of p-benzoquinone is enriched in the cathode chamber, and the concentration of the hydroquinone product is improved. The concentration of hydroquinone in the electrolyte can be effectively improved.

The application discloses a method for realizing resource utilization of phenol pollutants in water by using a nickel-ruthenium hybrid electrocatalyst, and belongs to the technical field of environmental electrocatalytic water treatment. The nickel-ruthenium hybrid electrocatalyst loaded on carbon cloth is prepared by using a simple two-step electrodeposition method, aiming at problems such as high energy consumption, high material consumption and high carbon emission of a traditional wastewater treatment mode. The catalyst has high stability and high selectivity, and can realize directional conversion of phenol pollutants in water into high-value p-benzoquinone under mild conditions, so as to simultaneously realize removal of the phenol pollutants in water and recovery of high-value-added chemicals. The application provides a new method for treatment and resource utilization of high-concentration phenol wastewater.

The invention discloses a zinc-iodine battery based on a zinc bromide electrolyte, and belongs to the technical field of chemical energy batteries. The zinc-iodine battery comprises a positive electrode, a negative electrode and an electrolyte, the positive electrode is a positive electrode containing a dual catalytic system, and the electrolyte is an electrolyte containing zinc bromide; the positive electrode containing the dual catalytic system comprises a dual catalytic system material, conductive carbon and a binder; the dual catalytic system material is obtained by mixing an iodine elementary substance and a non-polar compound which contains halogen and a carbon group and has a symmetrical structure. The preparation method comprises the following steps: adding tetrabromo-p-benzoquinone and elemental iodine into an organic solvent for dissolving, and removing the organic solvent to obtain the dual catalytic system material, wherein the non-polar compound containing halogen and a carbon group and having a symmetrical structure is tetrabromo-p-benzoquinone. The two-step reaction of the zinc-iodine battery is doubly catalyzed by the TBBQ and the Br <->, the reaction kinetics is improved, and meanwhile, the TBBQ and the Br <-> can be subjected to oxidation-reduction reaction at the same potential to provide extra capacity, so that the construction of the high-rate and high-capacity zinc-iodine battery is realized.

The invention relates to a small organic molecule material, a preparation method thereof and an application of the small organic molecule material in an aqueous zinc ion battery, and the small organic molecule material is an imine small organic molecule (PD-TABQ) formed by condensation of 1, 10-phenanthroline-5, 6-diketone and 2, 3, 5, 6-tetra (amino) p-benzoquinone. The small organic molecule is prepared by carrying out reflux reaction, washing and drying on 1, 10-phenanthroline-5, 6-diketone and 2, 3, 5, 6-tetra (amino) p-benzoquinone, and has the advantages of low solubility, good conductivity, large capacity density and good cycle performance. When the PD-TABQ positive electrode is applied to an aqueous zinc ion battery, the PD-TABQ positive electrode has the high initial capacity of 163.4 mAh g <-1 > under the current density of 0.1 Ag <-1 >. And excellent performance and application prospects are shown in the field of aqueous zinc ion batteries.

The invention discloses a method for preparing p-benzoquinone through selective electrocatalytic oxidation of phenol by using a carbon cloth loaded ferronickel catalyst, the method adopts the carbon cloth loaded ferronickel catalyst as an anode to realize efficient conversion of phenol in an aqueous solution into p-benzoquinone, and the product is only p-benzoquinone. The method has the advantages of simple operation process, mild reaction conditions, high catalytic activity, high chemical selectivity and high target compound yield. The p-benzoquinone is prepared by oxidizing phenol in an alkaline environment, so that the use of toxic and harmful chemical oxidants is avoided, the pollutant emission is reduced from the source, and the method is an environment-friendly synthesis process and conforms to the development concept of green chemistry.

The invention is applicable to the technical field of materials, and provides an aminated polyacrylonitrile fiber as well as a preparation method and application thereof, and the preparation method comprises the following steps: heating 1.00 g of polyacrylonitrile fiber, 50.0 mL of N-methyl-1, 3-propane diamine and 25.0 mL of distilled water until boiling, continuing for 2.5 hours, filtering, washing and drying to obtain the aminated polyacrylonitrile fiber. When the obtained aminated polyacrylonitrile fiber is immersed in a p-benzoquinone solution, the aminated polyacrylonitrile fiber can be rapidly converted from light yellow to dark brown within 30 seconds, and the detection sensitivity is as low as 500 ppb. Even in a low-temperature environment of 0 DEG C, the material provided by the invention can still maintain the detection sensitivity and shows stable color change. In addition, the material provided by the invention is applicable in a wide range of pH values of 3-10. The adsorption capacity is extremely high, the maximum adsorption capacity can reach 312.8 mg g <-1 >, and synchronous removal of p-benzoquinone is effectively achieved.

The application provides a synthesis method of p-benzoquinone dioxime. The synthesis method comprises the following steps: (1) adding solid acid into an ethanol solution of phenol to obtain a mixed solution A, then vacuumizing and filling with inert gas; dissolving nitrite into ethanol, uniformly mixing to obtain an ethanol solution of nitrite, then vacuumizing and filling with inert gas; in an inert gas atmosphere, adding the ethanol solution of nitrite into the mixed solution A dropwise to perform nitrosation reaction, to obtain a reaction liquid B; in the inert gas atmosphere, adding an ethanol solution of hydroxylamine into the obtained reaction liquid B to perform oximation reaction; after the reaction is completed, filtering the obtained reaction liquid C, performing reduced pressure distillation on the obtained filtrate, and performing washing, filtering and drying on the obtained residual liquid of the reduced pressure distillation, to obtain p-benzoquinone dioxime. The method provided by the application reduces the occurrence of side reactions, improves the conversion rate of the reaction, and improves the yield and purity of p-benzoquinone dioxime.

This invention provides a method for preparing dibenzoyl-p-benzoquinone dioxime using a microchannel reactor. The method includes the following steps: 1,3-dicyclohexylcarbodiimide and a catalyst are mixed uniformly and preheated to obtain a premix; a chloroform solution of p-benzoquinone dioxime, a chloroform solution of benzoic acid, and the premix are simultaneously introduced into the microchannel reactor for reaction; the resulting reaction solution is subjected to vacuum distillation, washing, filtration, and drying to obtain dibenzoyl-p-benzoquinone dioxime. The synthesis method of this invention features high reaction conversion rate, high production efficiency, few side reactions, and high safety. The obtained dibenzoyl-p-benzoquinone dioxime product has stable quality. Furthermore, the organic solvent used can be recovered and reused after vacuum distillation, overcoming the problems of inaccurate temperature control, poor safety, numerous side reactions, and difficult waste treatment in traditional processes. This provides a new approach for the synthesis of dibenzoyl-p-benzoquinone dioxime.

The invention belongs to the technical field of compositions of high-molecular compounds, and particularly relates to a rubber composite material as well as a preparation method and application thereof. The rubber composite material is prepared from the following components in parts by mass: 85-92 parts of rubber powder, 1-2 parts of an ethylene-vinyl acetate copolymer, 1.2-1.8 parts of epoxidized natural rubber, 1-3.5 parts of an activating agent, 3-6 parts of a modifying agent, 1.5-3 parts of a bulking agent and 0.5-1 part of a compatibility accelerant, the modifying agent is prepared by compounding disulfide-bismaleimide ethane, p-benzoquinone dioxime, hydrogenated castor oil and hyperbranched polyglycidyl ether; the preparation method comprises the following steps: mixing all the components to prepare the rubber composite material; the application comprises the following steps: heating the asphalt, adding the rubber composite material, uniformly mixing, and shearing to obtain the rubber modified asphalt. When the rubber modified asphalt is prepared, the compatibility of the asphalt and the rubber powder is effectively improved in a high-mixing-amount environment of the rubber powder by adding a modifying component.

The application discloses a vegetable oil-based self-repairing photo-thermal response shape memory polymer, a preparation method and application thereof, and relates to the technical field of shape memory polymers. In a first step, oleic acid, formic acid and hydrogen peroxide are reacted to obtain an intermediate product A by using p-toluenesulfonic acid as a catalyst; in a second step, the obtained intermediate product A is reacted with hexamethylene diisocyanate and p-benzoquinone dioxime to obtain an intermediate product B; and in a third step, epoxy resin and an epoxy resin accelerator are added and heated to be cured to obtain the vegetable oil-based self-repairing photo-thermal response shape memory polymer. The oxime-urethane dynamic bond and the ester exchange dynamic bond in the vegetable oil-based self-repairing photo-thermal response shape memory polymer prepared by the application can endow the prepared polymer with excellent self-repairing ability and shape memory performance. The polymer is prepared by using a bio-based material, the process is simple, the mechanical performance is controllable, the self-repairing and shape memory functions can be realized under the condition of ultraviolet light excitation and heating, and the shape memory performance and mechanical performance loss after repeated use is small.

The invention discloses a synthesis method of a benzoxazole / benzothiazole compound, and belongs to the technical field of organic synthesis. The synthesis method comprises the following steps: by taking a benzaldehyde compound and an ortho-aminophenol compound or an ortho-aminophenol compound as raw materials and potassium ferricyanide and an ionic catalyst as additives, adding an organic solvent, placing the mixture in an oil bath for reflux reaction, then adding 2, 3-dichloro-5, 6, 7-trimethyl-1, 3-pentanediol into the reaction system, and carrying out a reaction to obtain the 2, 3-dichloro-5, 6, 7-trimethyl-1, 3-pentanediol. And 2, 6-dicyanop-benzoquinone or oxygen is subjected to cyclization synthesis to obtain the benzoxazole compound or the benzothiazole compound. According to the synthesis method disclosed by the invention, common raw materials can be completely reacted within a short time under mild reaction conditions through simple steps, and the yield is high.

The present invention provides an electro-responsive material, device and preparation method with tunable circularly polarized luminescence properties, which relates to the field of intelligent dimming technology. The electro-responsive material with tunable circularly polarized luminescence properties includes an electrochromic acid, an electrochromic base and an acid-base responsive circularly polarized optical switch molecule. The electrochromic acid is an aniline derivative, and the electrochromic base is a p-benzoquinone derivative. In the structural formula of the circularly polarized optical switch molecule, R1 and R2 are hydrogen or alkyl substituents, R3 and R4 are hydrogen, phenyl or alkyl substituents, and R3 and R4 are different types of substituents. By utilizing the characteristics that the "electrochromic acid" aniline derivative and the "electrochromic base" p-benzoquinone derivative can reversibly release or capture protons during the process of electrochemical oxidation or reduction, and combining with the circularly polarized optical switch molecule that responds to both acids and bases, an electro-responsive material with tunable circularly polarized luminescence properties under the action of an electric field can be obtained. The required raw materials are simple and easy to obtain, and the device construction cost is low.

The invention provides an inorganic matter and cationic organic matter compounded clay stabilizer for water injection, and discloses that trimethyl monoallyl ammonium chloride is used as a raw material, and polymerization in the use process is prevented after a p-benzoquinone polymerization inhibitor is added, so that cationic monomer micromolecules containing double bonds are used as an organic clay stabilizer, and the stability of the organic clay stabilizer is improved. When being used together with the same raw material cationic organic matter with small molecular weight, namely 2-hydroxyethyl trimethyl ammonium chloride, the clay swelling prevention agent has the performance of preventing clay swelling, anti-scouring capability and long-term effect, and has better performance of preventing clay swelling after being compounded with cheap inorganic raw materials, namely aluminum chloride, dipotassium phosphate and industrial ammonium chloride; the prepared clay anti-swelling agent compounded by the inorganic matter and the cationic organic matter not only has excellent capacity of preventing clay swelling, but also has good anti-scouring capacity and good washing resistance, and an innovative demonstration effect is achieved for preventing damage of clay swelling and migration to a reservoir in water injection and improving the water injection recovery ratio.

This invention discloses a method for the integrated management of the endangered plant *Gnaphalium affine* and medicinal plants. The method involves calculating the N / P ratio of the leaves of the *Gnaphalium affine* to be planted and the total nitrogen value of the soil. When the N / P ratio is ≤16 and the total nitrogen value is <5 g / kg, organic fertilizer is applied to the soil; when the N / P ratio is >16 and the total nitrogen value is >5 g / kg, phosphorus fertilizer is applied to the soil. *Spatholobus suberectus* seedlings or *Cassia tora* seedlings are treated with a 2,6-dimethoxy-p-benzoquinone solution before being transplanted near the *Gnaphalium affine* seedlings. Field management is then carried out, and the *Spatholobus suberectus* vines are harvested in the third year, or the *Cassia tora* seeds are harvested annually. This method addresses the problems of N / P imbalance and seedling stunting in *Gnaphalium affine* by targeting the N / P ratio of the seedling leaves and the total nitrogen value of the soil with phosphorus or nitrogen fertilizer, thus improving the survival rate of *Gnaphalium affine* seedlings. By selecting *Spatholobus suberectus* and *Cassia tora* as the integrated management targets for *Gnaphalium affine*, this method overcomes the difficulty of low economic benefits in integrated management of *Gnaphalium affine*, thereby increasing the economic returns for growers.

The application provides a preparation method of dibenzoyl-p-benzoquinone dioxime. The method comprises the following steps: (1) adding a heteropoly acid catalyst into an ethanol solution of p-benzoquinone dioxime to obtain a mixed solution; (2) adding an ethanol solution of benzoic acid into the obtained mixed solution, and then performing a reaction; after the reaction is completed, filtering the obtained reaction liquid, drying and screening the obtained filter residue to obtain dibenzoyl-p-benzoquinone dioxime. The method uses p-benzoquinone dioxime and benzoic acid as raw materials, uses ethanol as a reaction solvent, uses a heteropoly acid as a catalyst for a condensation reaction, and synthesizes dibenzoyl-p-benzoquinone dioxime in one step. The solvent ethanol used in the method can be recovered and reused through reduced pressure distillation, and the catalyst heteropoly acid can be recycled and reused after being filtered, so that the output of acidic production wastewater is reduced, the generation of strong corrosive hydrogen chloride gas is avoided, and the green environmental protection requirement is met.

The invention discloses a preparation method and application of nitrogen-oxygen co-doped graded porous carbon, the method takes 2, 3, 5, 6-tetra (amino) p-benzoquinone as a carbon precursor and a nitrogen doping agent and potassium trimesic acid as an activating agent and a confinement template, the method comprises the following steps: firstly, grinding and uniformly mixing the 2, 3, 5, 6-tetra (amino) p-benzoquinone and the potassium trimesic acid, transferring into a magnetic boat, then putting into a tubular furnace, and carrying out heat preservation for 2-4 hours; under the protection of argon, heating is performed to prepare the nitrogen-oxygen co-doped hierarchical porous carbon, and the obtained nitrogen-oxygen co-doped hierarchical porous carbon has proper nitrogen-oxygen content and rich hierarchical pore structures. 2, 3, 5, 6-tetra (amino) p-benzoquinone is taken as a carbon precursor and a nitrogen doping agent, potassium trimesic acid is taken as an activating agent and a confinement template, nitrogen-oxygen co-doped hierarchical porous carbon is directly constructed by adopting a one-step method, the specific surface area is between 1321.76 and 1789.52 m < 2 > / g, and the total pore volume is between 0.85 and 1.25 cm < 3 > / g; when the material is used as the positive electrode material of the zinc ion hybrid capacitor, the specific capacitance is 205.02 mAh / g under the current density of 0.1 A / g, and the energy density is up to 182.45 Wh / kg.

The invention discloses a sodium ion battery electrolyte with high cycle performance and a preparation method thereof, comprising the following steps: dissolving a sodium salt in an organic solvent, mixing to obtain a sodium salt solution; adding a film former, a flame retardant and an additive to the sodium salt solution, and mixing evenly to obtain the electrolyte; the additive is obtained by amino-propylene addition reaction of tri-n-butyl (1-propylene) tin and 2,3,5,6-tetra (amino) p-benzoquinone, and then reacting with 1,2-dimercapto-o-carborane to generate thiol-propylene addition reaction. The present invention optimizes the composition and preparation process of the electrolyte, and the obtained sodium ion battery electrolyte shows excellent stability in multiple cycle tests, and the capacity retention rate is significantly improved. When the number of cycles reaches more than 1000 times, the capacity decay is less than 5%. The electrolyte also has good low temperature performance and thermal stability, and can work normally in a wide temperature range of 20 ° C to 60 ° C.

The present invention discloses a ternary nano self-assembly particle that responds to and regulates the microenvironment of arterial thrombosis and a preparation method thereof. The ternary nano self-assembly particle uses asymmetric zinc phthalocyanine as a template and is self-assembled with a natural small molecule compound containing a para-benzoquinone mother core and a flavonoid compound through hydrophobic interaction, π-π interaction, and electrostatic interaction. The self-assembly nanoparticles provided by the present invention can adsorb plasma proteins in situ in the circulation of the organism and form a protein corona of multiple plasma protein components on the surface; and it can respond to the shear force that increases sharply at the arterial thrombosis site to achieve passive targeting and fixed-point release; in addition, the self-assembly nanoparticles can regulate the arterial thrombosis microenvironment by inhibiting the NF-κB signaling pathway, inhibiting the formation of neutrophil extracellular traps, inhibiting glycolysis, and promoting the cGMP-mediated signaling pathway, thereby significantly improving the prognosis of carotid thrombotic diseases. It also has good biosafety and provides a new nano-therapeutic drug for arterial thrombosis.

The invention provides a method for preparing p-benzoquinone dioxime by using a microchannel reactor. The method comprises the following steps: respectively introducing a sodium nitrite aqueous solution and a hydrochloric acid aqueous solution into a first microchannel reactor, and reacting to obtain a mixed solution A; respectively introducing an ethanol or chloroform solution of phenol and the mixed solution A into a second microchannel reactor, and carrying out nitrosation reaction to obtain a mixed solution B; respectively introducing the mixed solution B and an aqueous solution of hydroxylamine hydrochloride into a third microchannel reactor, and carrying out oximation reaction to obtain a mixed solution C; and carrying out reduced pressure distillation on the mixed solution C, centrifuging the obtained residual solution, and drying. The method disclosed by the invention is high in safety, high in production efficiency and high in reaction conversion rate, and the obtained product is stable in quality and high in yield and purity; meanwhile, the used organic solvent ethanol can be recycled and reused, and the generated waste salt is single sodium chloride salt and can be subjected to resource utilization.

The invention discloses a mixing kettle for generating p-benzoquinone by aniline oxidation method, and relates to the technical field of mixing kettles. The mixing kettle for generating p-benzoquinone by aniline oxidation method comprises a kettle body arranged on the mixing kettle body, a discharge valve is arranged at the bottom of the kettle body, and a feed valve is arranged at the top of the kettle body, and a moving rod is inserted at the top of the kettle body. The mixing kettle for generating p-benzoquinone by aniline oxidation method can make the stirring rod reciprocate forward and reverse during mixing, and at the same time, the vertical plate and the horizontal plate are driven to reciprocate up and down by the moving disk, so that the stirring and mixing efficiency is higher and the effect is better, and it is convenient to introduce air into the solution, which can improve the efficiency and effect of the reaction; after the reaction is completed, the kettle body can be vacuumed to avoid the escape of waste gas, which is more healthy and environmentally friendly, and it is convenient to recover excess manganese dioxide for subsequent continued use, which is more convenient and quick to use.

The invention belongs to the technical field of emission reduction of nitrous oxide in soil, and particularly relates to application of hydroquinone type biochar in reduction of emission of nitrous oxide in soil, and the hydroquinone type biochar is applied to reduction of emission of nitrous oxide in soil. The preparation method of the hydroquinone type biochar comprises the following steps: S1, mixing p-benzoquinone and straws, and pyrolyzing in a heating furnace to prepare quinone / hydroquinone type biochar; s2, phenylhydrazine and hydrochloric acid are dissolved in ethyl alcohol, then the quinone / hydroquinone type biochar is added and stirred, then precipitates are separated and washed with ethyl alcohol, and the hydroquinone type biochar is obtained after drying. The hydroquinone type biochar containing quinone groups is prepared and applied to N2O emission reduction of soil, the hydroquinone type biochar serves as an electron shuttle, N2O is promoted to be converted into N2, and the N2O emission reduction amplitude can reach 60%-90%.

This invention relates to an EPDM-based crosslinked rubber material and its preparation method. The rubber material is obtained by vulcanizing raw rubber composed of EPDM rubber, maleic anhydride-grafted polyethylene, a peroxide vulcanizing agent, ethylene glycol dimethacrylate, p-benzoquinone dioxime, lead metal oxide, paraffin oil, a silane coupling agent, and an antioxidant. The EPDM-based crosslinked rubber material obtained by this invention has a double crosslinked structure. The formulation system endows EPDM rubber with excellent physical and mechanical properties, electrical insulation properties, and aging resistance, while also possessing good injection molding performance. This material solves the problems of high prices and long procurement cycles associated with imported finished products, providing an efficient and economical solution for the production of cable accessories.

The invention relates to the technical field of preparation of metal organic composite materials, in particular to a copper-tetracyano p-benzoquinone dimethane metal organic composite material and a preparation method thereof.The preparation method comprises the steps that a Cu source and TCNQ are subjected to ball milling treatment in the absence of a solvent or under the action of the solvent, the Cu source and the TCNQ are subjected to a solid-phase charge transfer reaction, and the Cu source and the TCNQ are subjected to solid-phase charge transfer reaction; according to the copper-tetracyano p-benzoquinone dimethane metal organic composite material, a mechanochemical ball milling method is adopted, rapid coordination reaction of copper ions and TCNQ ligands is achieved under the solvent-free condition, and the copper-tetracyano p-benzoquinone dimethane metal organic composite material has the advantages of being simple in process, environmentally friendly, high in efficiency and the like.

This invention provides a metal-doped electrode and a method for the electrochemical oxidation of phenol to prepare p-benzoquinone. The metal-doped electrode comprises a conductive substrate material and lead, manganese, and ruthenium metals attached to the surface of the conductive substrate material, wherein the mass ratio of lead, manganese, and ruthenium is 60-95%:2-25%:2-15%. The method for the electrochemical oxidation of phenol to prepare p-benzoquinone uses the metal-doped electrode of this invention as the anode and a lead electrode as the cathode in a two-chamber electrolytic cell containing a diaphragm, and electrolyzes phenol to prepare p-benzoquinone under acidic conditions. The electrode of this invention is corrosion-resistant under acidic conditions and has a long service life. Current density >4000 A / m 2 By controlling the current density, the selectivity of benzoquinone is >90%. The electrode materials used are inexpensive and readily available, the electrochemical process is simple, and the process is safe and reliable, showing great promise for industrialization.

The invention discloses a method for reducing hexavalent chromium by using tire rubber additive-quinone derivative reinforced shewanella, and the method comprises the following steps: S1, preparing an N-(1, 3-dimethylbutyl)-N '-phenyl p-benzoquinone concentrated solution; s2, a culture medium is prepared, Shewanella oneidensis MR-1 is activated, and a bacterial suspension is obtained; and S3, the N-(1, 3-dimethylbutyl)-N '-phenyl p-benzoquinone concentrated solution is used for strengthening Shewanella oneidensis MR-1, and hexavalent chromium is reduced. In order to solve the problem of low removal efficiency of high-concentration Cr (VI), the invention provides a method for accelerating the reduction of Cr (VI) by S.oneidensis MR-1 by using the electron shuttle characteristic of 6PPD-Q, and the method has potential environmental restoration and application values.