318 results about "Ferrocene" patented technology

The invention provides a novel chiral ferrocene bridged binaphthyl skeleton phosphine ligand and application thereof. The ligand has the advantages of low cost, simplicity in synthesis, air stability and the like. The ligands have good catalytic activity and enantioselectivity in the asymmetric hydrogenation reaction of ketone, and have certain industrial application prospects in the synthesis of pharmaceutical molecules.

The invention discloses a preparation method and application of single-walled carbon nanotube conductive paste. The equipment is transformed to realize gasification of ferrocene in a preheating zone (200 DEG C), the ferrocene enters a high-temperature reaction zone (900-1050 DEG C) along with inert gas, a saturated hydrocarbon carbon source and reducing gas at the same time, high-purity single-walled carbon nanotubes are synthesized, impurity metals are removed through acid pickling, and the high-purity single-walled carbon nanotubes are obtained. When the prepared single-walled carbon nanotube conductive paste is applied to a lithium iron phosphate positive electrode, a continuous and stable conductive network can be formed, the rate capability is improved, the internal resistance is reduced, and the conductivity of lithium iron phosphate is greatly improved.

The invention belongs to the technical field of asymmetric catalysis, and discloses a chiral phosphine nitrogen-nitrogen tridentate ligand based on a ferrocene skeleton as well as a preparation method and application of the chiral phosphine nitrogen-nitrogen tridentate ligand. The structural formula of the ligand is shown as (I) or an enantiomer (II) of the ligand. The preparation method comprises the steps of acylation reaction, oxazoline ring construction, aldehyde group introduction, reductive amination and the like, and application in asymmetric hydrogenation reaction, such as asymmetric hydrogenation of aryl ketone. The ligand has a plurality of chiral factors, simultaneously has a potential hydrogen bond donor, forms secondary interaction with a substrate in an asymmetric catalytic reaction, can further stabilize a reaction transition state, is an efficient novel chiral P, N, N-ligand, has the advantages of high reaction activity, good stereoselectivity, wide substrate range and the like, and has a wide application prospect. # imgabs0 #

The invention relates to the technical field of organic synthesis, in particular to 4-chloro-1-methyl-6H-heterochromene [3, 4-c] pyridine as well as a synthesis method and application of the 4-chloro-1-methyl-6H-heterochromene [3, 4-c] pyridine. The synthesis method comprises the following steps: (1) synthesizing 2-chloro-3-fluoro-4-iodine-5-methylpyridine from 2-chloro-3-fluoro-5-methylpyridine and an iodine elementary substance to obtain 2-chloro-3-fluoro-4-iodine-5-methylpyridine; (2) synthesizing 2-(2-chloro-3-fluoro-5-methylpyridine-4-yl) benzaldehyde from the 2-chloro-3-fluoro-4-iodo-5-methylpyridine, the 1, 1-bis (diphenylphosphine) ferrocene palladium dichloride, the tripotassium phosphate and the (2-formyl phenyl) boric acid, and further synthesizing the 2-(2-chloro-3-fluoro-5-methylpyridine-4-yl) benzaldehyde from the 2-chloro-3-fluoro-4-iodo-5-methylpyridine and the 1, 1-bis (diphenylphosphine) ferrocene palladium dichloride. And (3) synthesizing the 4-chloro-1-methyl-6H-heterochromene [3, 4-c] pyridine by using the 2-(2-chloro-3-fluoro-5-methylpyridine-4-yl) benzaldehyde and sodium tert-butoxide. The 4-chloro-1-methyl-6H-heterochromene [3, 4-c] pyridine compound constructed by the invention can be used for detecting the content of pesticide residue glyphosate.

The invention discloses a ferrous sulfide-barium titanate wave-absorbing material and a preparation method thereof, and belongs to the technical field of novel wave-absorbing materials.The wave-absorbing material is prepared through a two-step hydrothermal method, firstly, thiourea and ferrocene are mixed through the hydrothermal method to prepare ferrous sulfide, and then the ferrous sulfide and the ferrocene are mixed through a hydrothermal method to prepare the ferrous sulfide-barium titanate wave-absorbing material. Barium chloride, butyl titanate and the prepared ferrous sulfide are subjected to a reaction through a hydrothermal method, a ferrous sulfide-barium titanate composite material is obtained, and the wave absorbing performance of the composite material is adjusted by adjusting the content of barium titanate in the composite material. The ferrous sulfide-barium titanate composite wave-absorbing material prepared by the method has the advantages of lower density, wider effective absorption frequency band, higher electromagnetic wave absorption performance, simple preparation method, capability of regulating and controlling the morphology of the composite material and the like.

The invention discloses an algae-based iron-carbon catalyst as well as a preparation method and application thereof, and relates to the technical field of new material research and development and sewage treatment. The preparation method comprises the following steps: mixing ferrocene, diatomite and a solvent to obtain a mixed solution; adding a hydrogen peroxide solution into the mixed solution, and then heating for reaction to obtain an intermediate; and roasting the intermediate to obtain the algae-based iron-carbon catalyst. According to the invention, ferrocene and diatomite are used as raw materials, and the high-performance algae-based iron-carbon catalyst is prepared through simple solvothermal reaction and roasting treatment. The obtained algae-based iron-carbon catalyst is stable in structure, high in activity and wide in applicable pH range in a persulfate oxidation system, and can be used for activating persulfate to degrade antibiotic pollutants in water.

The invention discloses a preparation method and application of a metal modified amino porphyrin COF material based on ferrocene dicarboxaldehyde, and the preparation method comprises the following steps: (1) adding ferrocene dicarboxaldehyde and 5, 10, 15, 20-tetra (4-aminophenyl) porphyrin into an organic solution, and carrying out ultrasonic mixing; (2) adding a catalyst into the dispersion liquid, ultrasonically mixing uniformly, and carrying out multiple freezing degassing circulation treatment; (3) after the treatment in the step (2), carrying out heat preservation reaction, cooling to room temperature, carrying out centrifugal separation on turbid liquid, washing the precipitate, then soaking the precipitate by using an organic solvent, and centrifugally collecting a precipitate product; and (4) drying the precipitation product, and collecting to obtain a black powder sample COF material. The COF material prepared by the invention has excellent electro-catalytic performance and stability, and has a good application prospect in metal-air batteries.

The invention relates to a power-on adhesive tape capable of losing adhesion and a preparation process thereof. The power-on adhesive tape comprises a base film, a conductive layer and an adhesive layer, the adhesive layer is prepared from the following raw materials in parts by mass: 40 to 50 parts of acrylate copolymer, 3 to 5 parts of terpene resin, 0.2 to 0.5 part of initiator, 20 to 30 parts of solvent, 3 to 5 parts of pyridine modified reduced graphene oxide, 8 to 10 parts of hydroxypropyl-beta-cyclodextrin, 2.0 to 2.4 parts of 1-(2-aminoethyl) ferrocene and 4 to 5 parts of polyethylene glycol diacrylate. The component A is prepared from the following components in parts by weight: 0.5 to 0.8 part of polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer, 0.2 to 0.5 part of benzotriazole antioxidant and 1 to 2 parts of polycarbodiimide; the raw materials of the acrylate copolymer comprise a soft monomer and a hard monomer in a mass ratio of (2.5-3.5): 1. The power-on viscosity-loss adhesive tape is high in peel strength and high in power-on viscosity-loss sensitivity.

The application discloses an oxygen reduction catalyst and a preparation method and application thereof. The preparation method of the oxygen reduction catalyst comprises the following steps: S1: mixing mycelia of filamentous fungi, ferrocene and a nitrogen source, and performing first calcination to obtain a mixture A; and S2: mixing the mixture A and a ZnCl2 solution, and performing activation and carbonization reaction to obtain the oxygen reduction catalyst. The preparation method can realize environmental management through waste recycling, and has the advantages of easy preparation of raw materials, low cost, simple preparation method, and suitability for large-scale preparation and application. Meanwhile, the oxygen reduction catalyst has the advantages of obvious three-dimensional porous structure, large specific surface area, rich active sites, good catalytic activity and stability.

The invention relates to a preparation method of a hydrolysis modified organic silicon high-temperature-resistant anticorrosive coating, and belongs to the technical field of anticorrosive coatings. The preparation method comprises the following steps: heating 1, 1 '-bis (dimethylsilyl) ferrocene, methylbenzene, chloroplatinic acid, 2, 2, 3, 3, 4, 4, 4-heptafluorobutyl acrylate and bis-(2-methylallyl) cyclooctyl-1, 5-diene ruthenium, and reacting to obtain an intermediate product 1; weighing methyltrimethoxysilane, phenyltrimethoxysilane and the intermediate product 1, uniformly stirring and mixing, slowly dropwise adding diluted hydrochloric acid, hydrolyzing, and heating to react, so as to obtain modified silicon resin; adding the modified silicon resin into petroleum ether, and adding silicone oil, an organic tin catalyst, a bis-ammonia coupling agent, filler and a curing agent to obtain the anticorrosive paint.

A group of inventions relates to the field of medical devices. A method for producing needles with adsorption properties is described by depositing an iron oxide coating onto the needle by atomic layer deposition. An acupuncture needle for reflex therapy, consisting of a handle and shaft made of metal material, is placed in a reactor where a vacuum is created at a pressure of approximately 10 mbar ± 0.1 mbar and a temperature of 150 ± 0.2 °C, then a ferrocenecarboxylic acid precursor in the form of vapor is delivered to the reactor, then nitrogen is added to the reactor and degassed to the initial pressure, and this process is repeated in pulse mode until a specific coating thickness is formed. The use of ferrocenecarboxylic acid as a precursor for producing an Fe3O4 coating is described. An acupuncture needle for adsorbing toxic heavy metal ions is described with a coating of Fe3O4 nanofilm thickness of 14 nm ± 0.1 nm, and the nanofilm has the appearance of a nanosieve as shown in Figure 1b. The use of acupuncture needles for adsorbing metal ions is described. The technical achievement of this invention is the development of a method for attaching a magnetic separation film of Fe3O4 to the surface of an acupuncture needle, which is simpler and less expensive in terms of methodology and technique, thereby imparting adsorption properties to the acupuncture needle. The needle of this invention makes it possible to adsorb toxic heavy metal ions such as cadmium, arsenic, manganese, cesium, aluminum, iron, cobalt, nickel, chromium, mercury, lead, copper, zinc, beryllium, antimony, thallium, bismuth, osmium, tin, molybdenum, zirconium, titanium, vanadium, molybdenum, and gallium.

The present application relates to a kind of radiotherapy sensitization microneedle and its preparation method and application, belong to biological medicine technical field.The radiotherapy sensitization microneedle of the present application includes hyaluronic acid and nano radiosensitizer;The radiotherapy sensitization microneedle is obtained by drying after hyaluronic acid and nano radiosensitizer solution are mixed;The nano radiosensitizer solution is prepared by the following method: hafnium salt, 1,1'-ferrocene dicarboxylic acid and benzoic acid are mixed in organic solvent and stirred, centrifugal;The supernatant obtained is dialyzed, extracted, and the liquid phase obtained after solid-liquid separation is nano radiosensitizer solution.The radiotherapy sensitization microneedle of the present application is applied to the growth inhibition and radiotherapy sensitization of mouse melanoma cell B16F10 cell, can fully play the role of radiotherapy sensitization while overcoming the limitation of prior art, and preparation route is simple, and have certain conversion prospect.

The application belongs to the technical field of compound synthesis, and particularly relates to an alpha-ketoamide derivative and a preparation method thereof, wherein the preparation method of the alpha-ketoamide derivative comprises the following steps: S1, first, a graphite carbon rod electrode and a platinum sheet electrode are respectively assembled on two sides of a 10mL three-port glass bottle; S2, then, a magnetic son is added into the three-port glass bottle, the bottle mouths on two sides are sealed, the three-port glass bottle is transferred to a glove box for feeding, and benzoylformic acid, morpholine and 10mol% of ferrocene in 4mL hexafluoroisopropanol are sequentially added; S3, after the feeding is completed, the last bottle mouth of the three-port glass bottle is sealed, and a constant current of 3mA is introduced for electrolysis. The application realizes the amination reaction of alpha-keto acid by using an electrocatalytic decarboxylation strategy, selectively synthesizes alpha-ketoamide derivatives, and the reaction is suitable for primary amine compounds, secondary amine compounds, is also suitable for aromatic and aliphatic alpha-keto acids, and excellent functional group tolerance is exhibited.

The invention relates to a method for co-processing low-flash-point low-calorific-value waste liquid in a cement kiln, and belongs to the technical field of environmental protection. The low-flash-point low-calorific-value waste liquid is conveyed to a pressure-stabilizing and flow-stabilizing tank and then is stably output to a low-pressure gasification preheater; the low-pressure gasification preheater is used for heating the waste liquid by utilizing low-grade waste heat of the cement kiln system and gasifying the waste liquid; the gas-liquid mixed phase is conveyed to a kiln head cover nozzle and a decomposing furnace nozzle through a special conveying pipeline, and heat energy is released and thoroughly decomposed; the inner wall of the special conveying pipeline is coated with a malonyl urea-epoxy resin composite coating; the malonyl urea-epoxy resin composite coating is prepared from epoxy resin, malonyl urea, methylbenzene, amino ferrocene and additional amino ferrocene; after the flue gas is co-treated by the cement kiln disclosed by the invention, the concentration of benzene and chlorobenzene in the flue gas is remarkably reduced, and the requirements of environment-friendly emission are met.

A method for producing low-aromatic white oil involves the mercapto-olefin addition reaction of a nickel mercaptonicate complex with methylallyltri-n-butyltin and vinyl ferrocene, respectively, using a carbon molecular sieve as a support to prepare a hydrogenation catalyst. This catalyst exhibits good mass transfer performance, inhibiting cracking reactions and pore blockage. The porous structure of the carbon molecular sieve provides effective channels for hydrogen atoms to diffuse on and within the catalyst surface, thereby improving hydrogen utilization. Dispersing nickel metal ions on the support surface to form a monolayer or multilayer structure enhances catalyst activity. It also resists the influence of some harmful substances on catalyst activity. The hydrogenation catalyst prepared by this invention enhances catalyst stability, reduces sintering and deactivation rates, thereby extending catalyst life. Furthermore, it contributes to improving the efficiency and selectivity of the hydrocracking process.

The application discloses a triphenylmethane polyether dye and a preparation method thereof, and the preparation method comprises the following steps: (1) adding an organic catalyst and an oxidant into a triphenylmethane polyether dye leucoaqueous solution in the interval of 40-60 DEG C, adding an acid-binding agent to maintain a proper pH, and completing oxidation; the organic catalyst is a ferrocene-rotene iron compound; (2) adjusting the pH with an acid-binding agent aqueous solution, removing the organic catalyst by hot filtration, removing water through vacuum distillation of the filtrate, and performing pressure filtration to obtain the triphenylmethane polyether dye. The improved rotene iron catalyst is used in the application, the catalytic effect is obviously improved, the reaction temperature and activation energy are reduced, the defects of excessive hydrogen peroxide oxidation are overcome, and the obtained product meets the EN71-3 standard.

The application provides an in-situ oriented carbon nanotube / silicon nitride nanobelt composite material and a preparation method thereof, and comprises the following steps: uniformly mixing methyltrimethoxysilane, dimethyldimethoxysilane, ethanol, water and nitric acid according to a certain proportion, and obtaining a siloxane xerogel precursor after stirring and drying; obtaining a silicon nitride nanomaterial by a carbothermal reduction reaction method under high-temperature conditions; injecting a mixed solution of ethanol, ethylenediamine and ferrocene into a tube furnace by a floating CVD method under high-temperature conditions, and growing carbon nanotubes on the surface of the silicon nitride nanobelt to obtain the in-situ oriented carbon nanotube / silicon nitride nanobelt composite material; and the application grows the carbon nanotubes on the surface of the silicon nitride nanobelt material by the floating CVD method to improve the electromagnetic shielding performance of the silicon nitride nanocomposite material, and finally, the carbon nanotube / silicon nitride nanobelt composite material with light weight, flexibility and good electromagnetic shielding performance is prepared.

The invention discloses activated carbon for adsorbing dioxin and a preparation method of the activated carbon, and belongs to the field of activated carbon preparation. The activated carbon is prepared by the following steps: firstly, mixing coconut shell charcoal with phosphoric acid, performing activating treatment in a microwave reactor, and then calcining to obtain coconut shell-based activated carbon; then soaking the coconut shell-based activated carbon in a ferrous chloride solution, adding an antioxidant, and drying after soaking; and dipping the coconut shell-based activated carbon in a ferrocene mixed solution, and drying after dipping to obtain the activated carbon for adsorbing dioxin. By constructing a micropore-mesopore structure, the dioxin containing capacity of the activated carbon is remarkably enhanced, ferrocene is loaded on the surface of the activated carbon, and the combining capacity of the activated carbon and the dioxin is further improved.

The invention relates to the technical field of biological medicines, in particular to an anti-tumor compound as well as a preparation method and application thereof. The nano-diamond cannot effectively kill tumor cells due to good biocompatibility, and the ferrocene with an aromatic ring structure is combined with the nano-diamond, so that a good anti-tumor effect can be fully exerted. The TAT-PEG-PLGA has the advantages that the TAT-PEG-PLGA is high in membrane penetrating capability, water solubility, biocompatibility, stability and targeting property; the TAT-PEG-PLGA with adsorption force on the surface is used for loading the ferrocene-nano-diamond and the adriamycin to obtain the anti-tumor compound, so that the ferrocene-nano-diamond and the adriamycin can effectively enter tumor cells to jointly play an anti-tumor effect. The obtained anti-tumor compound can effectively inhibit the activity of melanoma cells A375, is an effective tumor inhibitor, and can provide a new treatment strategy and choice for tumor treatment.

The application discloses a chalcogen-containing viologen derivative, a preparation method thereof and application of the chalcogen-containing viologen derivative in a flow battery system. The elements contained in the molecule include carbon, hydrogen, nitrogen, oxygen and chalcogen, and the molecule is rich in resources, low in cost and simple in synthesis method. Compared with a traditional bipyridine compound, the introduction of the chalcogen in the middle of the pyridine unit enhances the conjugation of the whole molecule structure and improves the stability of the molecule. The hydrophilic group is introduced into the nitrogen atom through ionization, the water solubility is increased, and the molecule can be used in a more green and environmental neutral aqueous flow battery. Tests show that the neutral aqueous flow battery composed of the molecule as an anode and ferrocene as a cathode has excellent performance, is stable in circulation and has a long service life, and has a good application prospect in the field of large-scale energy storage.

The invention discloses a phosphorus-containing oxynitride compound based on a cycloarane skeleton and a ferrocene skeleton and a preparation method and application thereof, the phosphorus-containing oxynitride compound based on the cycloarane skeleton and the ferrocene skeleton is selected from at least one of compounds with structural formulas as shown in a formula I and a formula II, wherein Ar is independently selected from phenyl and C7-C15 substituted aryl; the substituent group of the substituted aryl group is selected from one of C1-C4 alkyl groups and methoxyl groups. According to the invention, a class of novel phosphorus-nitrogen-oxygen-containing compounds which have two planar chirality and are based on the cycloarane skeleton and the ferrocene skeleton can be effectively synthesized; as a ligand, the compound shows excellent catalytic activity and enantioselective control ability in asymmetric hydrogenation of an iridium-catalyzed N-aryl indolone compound or a heterobiaryl ketone compound.

The application relates to a method for synthesizing ferrocene phosphine oxide compounds. Specifically, a ferrocene-substituted compound, diaryl phosphine oxide is used as raw material to realize C-H phosphine oxide reaction of ferrocene under the promotion of electricity. The application has the following advantages: the ferrocene-substituted compound is directly used as a C-H donor without guidance, no additional oxidant and metal catalyst are needed, the condition is mild, the substrate range is wide, and the yield is good.

The invention relates to the technical field of energy storage batteries, battery swap stations, electric automobiles and large battery packs, and discloses a composition of a heterogeneous liquid fire extinguishing agent, the heterogeneous liquid fire extinguishing agent and a preparation method and application of the heterogeneous liquid fire extinguishing agent. The composition contains a phosphorus-containing ferrocenyl compound, a foaming agent, a penetrating agent, a flame retardant, a thickening agent, a dispersing agent, an adsorbent and water, wherein the structure of the phosphorus-containing ferrocenyl compound is shown as a formula (1). The phosphorus-containing ferrocene compound in the heterogeneous liquid fire extinguishing agent can be decomposed into iron atoms and phosphorus atoms after encountering flame, the iron atoms, the phosphorus atoms and free radicals in the flame are subjected to cyclic catalytic reaction, and the free radicals such as H, O and OH are continuously consumed until the flame disappears; the heterogeneous liquid fire extinguishing agent has cooling and fire extinguishing functions, terminates a thermal runaway reaction and prevents reburning; and meanwhile, the heterogeneous liquid can adsorb flammable and explosive gas and soot particles generated by combustion, so that the poisoning and explosion risks are reduced.

The invention discloses a preparation method of a low-pore-number composite lining, and belongs to the technical field of textiles. The preparation method of the low-hole-number composite lining comprises the following steps: (1) weaving polyester yarns into gray fabric; (2) shaping and preshrinking the gray fabric; (3) dyeing the set and pre-shrunk gray fabric; (4) shaping and finishing the dyed gray fabric to obtain a composite lining; wherein the dye for dyeing is obtained by reacting N-amino-4-N, N-dimethyl-1, 8-naphthalimide with ferrocene dicarboxaldehyde, and the dye for dyeing is obtained by reacting N-amino-4-N, N-dimethyl-1, 8-naphthalimide with ferrocene The setting agent for setting and finishing contains a hydrophilic softening agent, the hydrophilic softening agent is obtained by mixing polyether phenyl silicone oil with a compound emulsifier and deionized water, and the polyether phenyl silicone oil is obtained by reacting side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyltriethoxysilane and 1-(4-vinyl-phenyl)-ethanone; the prepared low-hole-number composite lining is good in hydrophilicity, color fastness and softness.

The present invention relates to a zeolite imidazolate framework open nanostructured functional flame retardant and a preparation method and application thereof, belonging to the technical field of advanced functional materials. The present invention provides a zeolite imidazolate framework open nanostructured functional flame retardant having a unique yolk-shell structure, the surface of which has a large number of mesopores and macropore structures added on the basis of the micropore structure of the zeolite imidazolate framework. The presence of a multi-level pore structure is beneficial to the adsorption of flammable gases and toxic and harmful gases during the combustion of polymer materials, and enhances the smoke suppression effect of the flame retardant. There is a good synergistic effect between the ferrocene grafted on the zeolite imidazolate framework and the zeolite imidazolate framework, which can enhance the flame retardant efficiency of the functional flame retardant and at the same time give it excellent ultraviolet absorption ability. In addition, the introduction of ferrocene can effectively improve the compatibility between the functional flame retardant and the polymer matrix, thereby enhancing the mechanical properties of the polymer.

The present invention relates to the technical field of wood-plastic composites, and provides a PVC wood-plastic material having strong smoke suppression and flame retardancy, and a preparation method therefor. The PVC wood-plastic material comprises the following components in parts by weight: 70-100 parts of a PVC resin, 20-30 parts of wood powder, 20-30 parts of calcium carbonate, 15-20 parts of a smoke suppression material, 10-15 parts of a flame retardant, 1-6 parts of a foaming agent, 5-10 parts of a stabilizer, 1-2 parts of a coupling agent, 5-10 parts of a processing aid, and 1-4 parts of a lubricant, wherein the smoke suppression material comprises a molybdenum compound, ferrocene and an oxalate dihydrate in a mass ratio of 1:(0.5-1.5):(5-10). The preparation method comprises the end-capping modification of the wood powder and the preparation of the PVC wood-plastic material. The prepared PVC wood-plastic material has excellent flame retardancy and smoke suppression properties.

The application relates to a Faraday cage type aptamer sensor based on a MOF nanofilm and a method for detecting Staphylococcus aureus. A 1,1'-ferrocene carboxylic acid is used as a ligand, zirconium / hafnium is used as a central atom, and a Zr-based MOF nanofilm with different hafnium doping ratios is synthesized by using a bottom-up method. A Zr / Hf-MOF nanofilm with large size and excellent conductivity is selected as a two-dimensional signal probe, and is used for constructing an aptamer sensor of a Faraday cage. When Staphylococcus aureus exists, the Zr / Hf-MOF nanofilm is attached to the surface of an electrode to form a Faraday cage sensing interface, the interface expands an outer Helmholtz plane layer, leads to direct electron transmission between the electrode and the signal probe, and thus Staphylococcus aureus can be detected through an electrochemical workstation. The detection method of the application can realize detection of a large target by requiring the size and conductivity of the MOF nanofilm, and effectively amplifies the electrical signal through the Faraday cage structure, and has excellent detection specificity and sensitivity.

The invention relates to the technical field of nano material preparation and electrochemical energy storage, in particular to a single-walled carbon nanotube and a preparation method thereof. According to the preparation method, a floating catalyst chemical vapor deposition (FCCVD) method is adopted, a compound of ferrocene and sublimed sulfur is used as a catalyst precursor, a horizontal tube furnace with at least three independent temperature zones is adopted, and a specific staged programmed heating strategy is adopted, so that the high-temperature-resistant and high-temperature-resistant catalyst is obtained. And the temperatures of the precursor sublimation area, the catalyst formation and activation area and the main growth area are accurately controlled in sequence. Wherein the temperature of the main growth region is accurately controlled at an optimal window of 1000 DEG C. The method effectively inhibits the generation of multi-walled carbon nanotubes and defect structures, and can stably prepare single-walled carbon nanotubes with high graphitization degree and less metal residues. The method is high in process controllability, and a reliable scheme is provided for large-scale preparation of the high-performance single-walled carbon nanotubes.

The invention discloses a Fe-modified TiO2 hollow microsphere photo-Fenton catalyst as well as a preparation method and application thereof, and relates to the technical field of catalyst preparation, and the preparation method comprises the following steps: preparing TiO2 microspheres with hollow structures from hexadecyl trimethyl ammonium bromide, absolute methanol, deionized water and tetrabutyl titanate; the method comprises the following steps: mixing ferrocene and 0.25 C-TiO2 powder, putting the mixture into a quartz tube, putting the quartz tube into a muffle furnace, heating and pyrolyzing according to a two-stage program, alternately washing black powder with absolute ethyl alcohol and deionized water after the pyrolysis is finished, and drying to obtain a sample CT-5Fe; the preparation method comprises the following steps: dispersing CT-5Fe in an H2O2 solution, carrying out a water bath reaction, collecting a gray product, carrying out centrifugal operation, washing, and drying to obtain the Fe-modified TiO2 hollow microsphere photo-Fenton catalyst, namely CT-5Fe-HO. According to the invention, a photocatalysis-Fenton-like coupling system for phenol degradation is constructed, the PMS adsorption and activation capability is enhanced, high activity and good cycle stability are maintained in a wide pH range and in a complex water body, and a solution is provided for water body pollution treatment.

The application discloses a kind of high-stable carbene-alkynyl probe molecule self-assembly interface and preparation method thereof, and systematically proposes the stability change of highly ordered monomolecular self-assembly interface under different experimental environments.The construction method includes: design and synthesis have with carbene-alkynyl as bonding assembly group probe molecule (CB-C≡C);Second, CB-C≡C molecule is self-assembled on gold nano surface by gold-carbene bond, gold-alkynyl bond, forms gold-carbene-alkynyl trident assembly sensing interface.And by electrode surface in situ combination ferrocene (Fc) electrochemical response group, generate gold-carbene-alkynyl-Fc molecular self-assembly interface, and systematically evaluate in different determination environments containing high concentration glutathione (5-10mMGSH), 25-50 DEG C, pH2-10 Interface high stability.The application utilizes this new CB-C≡C self-assembly molecular probe can realize high-stable determination under different determination environments for up to 90 days.