12results about How to "Enhanced electron transfer capability" patented technology

The invention provides a method for improving the efficiency of an anaerobic membrane bioreactor and relieving membrane pollution by pyrolytic carbon, in the starting stage of the anaerobic membrane bioreactor, a conductive material SC is added into the reactor for anaerobic digestion reaction, and the conductive material SC is a carbon material which is obtained by heating and pyrolyzing sodium citrate and has a honeycomb structure. According to the scheme, SC is used as a conductive carrier in the anaerobic membrane bioreactor, and the anaerobic digestion reaction is promoted by combining the synergistic effect of a magnetic stirring system and a gas circulating pump. Experimental results show that the conduction characteristic of SC can effectively promote electron transfer and enhance the metabolic activity of anaerobic microorganisms, so that the degradation capacity of pollutants is improved, membrane pollution is effectively slowed down, the service life of a membrane assembly is remarkably prolonged to 6 times of the original service life, and the yield of CH4 is increased to 1.39 times.

The invention discloses a catalyst for simultaneously removing cyanide and organic matters in wastewater by a peroxymonosulfate oxidation method as well as a preparation method and application of the catalyst, and belongs to the field of chemistry and chemical engineering, in particular to the technical field of catalyst preparation. According to the preparation method, metal oxides such as molybdenum, cerium, vanadium and the like are introduced as a substrate, precise doping of cobalt and nickel and loading of noble metal nanoparticles are performed, and the structural stability and the anti-sintering capability of the catalyst are enhanced through surface modification while uniform distribution of metal elements is ensured, and efficient performance is kept for a long time under high-temperature complex reaction conditions; the catalyst prepared by the method is applied to simultaneous removal of cyanides (free cyanogens and complex cyanogens) and organic matters in wastewater by a peroxymonosulfate oxidation method, has excellent catalytic activity, can quickly reach the degradation rate of 90% or above for 100pmm cyanides (free cyanogens and complex cyanogens) and 200mg / LCOD organic matters in wastewater, and has excellent degradation effect and reaction rate.

The invention provides a PbZrO3 antiferroelectric capacitor and a preparation method thereof, and relates to the technical field of ferroelectric materials, the PbZrO3 antiferroelectric capacitor comprises a first electrode layer, a PbO layer, a solid solution ferroelectric antiferroelectric layer, a LaNiO3 layer and the like, and phases in the solid solution ferroelectric antiferroelectric layer comprise PbZrO3, a ferroelectric and an Ag-containing Au phase. The invention also provides a preparation method of the capacitor, and the method comprises the following steps: depositing a LaNiO3 precursor solution on a single crystal substrate, and carrying out the crystallization; mixing the PbZrO3 precursor solution with the ferroelectric precursor solution, and then adding Au nanoparticles containing Ag; the LaNiO3 layer is coated with the mixed solution, and crystallization is carried out; depositing the PbO precursor solution on the surface of the antiferroelectric layer of the solid solution ferroelectric, and crystallizing; and carrying out gold electrode deposition to obtain the PbZrO3 antiferroelectric capacitor. The capacitor is high in energy storage efficiency and high in dielectric constant.

This invention relates to the field of electrochemical technology, and particularly to a single-atom nickel-modified electrode material, its preparation method, and a reactor. An embodiment of this invention provides a method for preparing a single-atom nickel-modified electrode material, comprising: S1, subjecting a carbon felt to a surface hydrophilic treatment to obtain a hydrophilic carbon felt; S2, immersing the hydrophilic carbon felt in a first solution containing Ni ions, and adding a second solution containing organic matter, allowing for a complete reaction, and then growing a nickel-containing metal-organic framework material in situ on the hydrophilic carbon felt; S3, calcining the hydrophilic carbon felt containing the nickel-containing metal-organic framework material to obtain the single-atom nickel-modified electrode material. This invention provides a single-atom nickel-modified electrode material, its preparation method, and a reactor, which can provide a cathode material that combines efficient microbial colonization with interfacial stability.

The invention provides a conjugated naphthalenone diimide compound, which belongs to the technical field of electrochemical energy storage and energy conversion, and the structural formula of the compound is shown as any one of formulas 1-3. An electrode material prepared from the compound has excellent electrochemical stability, high specific capacity, good rate capability and excellent cycle life, and is suitable for novel energy storage systems such as zinc ion batteries and aluminum ion batteries. The invention also provides a preparation method and application of the conjugated naphthalenone diimide compound.

The invention relates to the field of new materials and catalytic hydrogen production, in particular to a heterogeneous catalyst and a preparation method and application thereof.The specific preparation method comprises the steps that a metal source and a photosensitizer are added into a mixed solvent of triethylamine and deionized water, sodium hypophosphite monohydrate or sodium hypophosphite is added to serve as a phosphorus source, the mixture is mixed to be uniform, and the heterogeneous catalyst is prepared. Stirring under the illumination of visible light to obtain a heterostructure catalyst dispersed in the solution, and performing post-treatment on the heterostructure catalyst dispersed in the solution to obtain nanoparticles of the heterostructure catalyst; the preparation of the catalyst is driven by visible light, high-temperature calcination or heating treatment is not needed, hydrogen can be generated in situ in the preparation process, the reaction of decomposing sodium hypophosphite to generate hydrogen by the prepared catalyst does not need to be carried out under the photocatalysis or electrocatalysis condition, and hydrogen can be generated by standing at normal temperature.

This invention discloses a covalent organic framework-supported iron single-atom close-range coordination catalyst, its preparation method, and its application in the removal of phenol through activated PMS polymerization. By rationally designing the spatial configuration and rigid structure of the COF ligand using pyrazine and bipyridine, precise control of the Fe atomic spacing is achieved at the atomic scale, resulting in a catalytic center with both high stability and high activity. This significantly enhances the adsorption and electron transfer capabilities of PMS molecules, promoting the polymerization of phenol into a high-molecular-weight polymer and its precipitation separation. It not only removes the pollutant phenol but also achieves carbon resource retention and pollutant immobilization, realizing resource utilization. The catalyst preparation process does not require high-temperature pyrolysis, is mild, and can be scalable.

The invention provides a composite catalyst and a preparation method and application thereof, the composite catalyst is of a cubic crystal structure, and the composite catalyst comprises an MOFs material and iron atoms and cobalt atoms doped in the MOFs material. The composite catalyst is wide in pH application range, high in catalytic activity and high in cycling stability, and the toxicity of catalytic degradation products can be obviously reduced.

The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.

The utility model belongs to the technical field of fiber textile fabrics, and particularly relates to an anti-pilling fabric. By arranging the three-layer structure and additionally arranging the static electricity connecting fiber clusters connected with the static electricity generating fiber clusters on the anti-pilling layer, electrons on the surfaces of high-static-electricity materials such as regenerated fibers can be transferred, and the situation that short and small regenerated cellulose formed by breakage under the static electricity effect is separated from original plied yarn is avoided; the pilling phenomenon on the surface of the electrostatic generation fiber cluster is relieved. By arranging the static dispersing fiber clusters which are connected with the static connecting fiber clusters and are partially arranged outside the protective layer, static electricity can be transferred from the inside of the fabric to the outside along the electron generating end, the static electricity inside clothes is reduced, and meanwhile, the static electricity inside the clothes is reduced. The electronic divergence ends formed by winding and interweaving the electric divergence fiber clusters can also achieve the physical isolation effect between the surfaces of the fabric, friction between the electronic divergence ends and the protective layer is reduced, and the fuzzing and pilling problems are solved through static conduction and physical isolation.

The present invention provides a graphene-encapsulated non-precious metal hydrogen evolution electrocatalyst and a preparation method and application thereof. The preparation method comprises: step S1, preparing Ti-doped NiMoO 4 , wherein the mass percentage of Ti doping is 0.1-5%; step S2, Ti-doped NiMoO 4 In an inert gas / hydrogen mixed atmosphere, calcining at 800-850°C for 1-60 min to obtain a NiMo alloy; step S3, cooling to 700-750°C, introducing pyridine vapor for 1s-2min, and growing a graphene encapsulation layer; stopping heating, and after the temperature drops to room temperature, obtaining a graphene-encapsulated Ti-doped NiMo alloy material. The catalyst of the technical solution of the present invention has excellent hydrogen evolution catalytic activity, and improves the ability to resist acid corrosion, enables non-precious metals to catalyze HER reactions in an acidic environment, has better catalytic stability, and is cheap.

The invention discloses a light carbon silicon humic acid compound fertilizer and a preparation method thereof, and belongs to the technical field of biological fertilizers. The light carbon silicon humic acid compound fertilizer is prepared from the following components in parts by weight: 15-20 parts of a light carbon silicon material, 10-20 parts of modified humic acid, 18-20 parts of urea, 12-15 parts of potassium chloride, 8-12 parts of monoammonium phosphate, 2-3 parts of a photosynthesis enhancer and 1-2 parts of a nanocrystallization aid, the optical carbon-silicon material is prepared by preparing a carbon carrier from a carbon raw material through a hydrothermal reaction and then loading a silicon element and photosynthesis promoting bacteria, the modified humic acid is prepared from a humic acid raw material through three-step treatment, fermentation, acid precipitation and hydrogen peroxide modification. The nanocrystallization auxiliary agent is an equivalent mixture of lauryl sodium sulfate and nano silicon dioxide. The light carbon silicon humic acid compound fertilizer provided by the invention promotes the growth and development of crops and improves the soil structure.