218results about How to "Achieve doping" patented technology

The invention discloses a method for preparing porous carbon@graphene composite material by taking a bimetal organic framework material as a precursor and application to modification of lithium-sulfur battery diaphragms thereof. The preparation method comprises the following steps: taking zinc salt and cobalt salt in a certain ratio as the raw materials, synthesizing a zinc / cobalt-bimetal organic framework@graphene composite material through a room-temperature liquid phase method, taking the zinc / cobalt-bimetal organic framework@graphene composite material as the precursor, carrying out high-temperature reaction under inert atmosphere, pickling and drying to obtain a cobalt / nitrogen double-doped porous carbon@graphene (Co-N-C@RGO) composite material. Co-N-C@RGO has high conductivity; the specific surface area of Co-N-C@RGO reaches up to 750-1000m<2> / g; the content of Co is 2-4At%; the content of N is 10-20At%. When the material is applied to the modification of the lithium-sulfur battery diaphragms, the material has the function of obviously inhibiting polysulfide shuttle effect and is capable of greatly improving actual specific capacity and cyclic performance of the lithium-sulfur batteries; meanwhile, the raw materials needed for synthesizing the material are simple; the operation is convenient; the large-scale production can be achieved; the material has certain promoting effect on commercialization of lithium-sulfur battery systems.

The present invention relates to a nitrogen-doped porous carbon material for a lithium-air battery positive electrode, wherein the nitrogen-doped porous carbon material has an interconnected graded pore structure, N is uniformly doped in the C skeleton, N accounts for 0.2-15% of the carbon material atomic ratio, the graded pores comprise mass transfer pores and deposition holes, the deposition holes account for 40-95% of the total pore volume, and the mass transfer pores account for 4-55% of the total pore volume. According to the present invention, with application of the carbon material as the lithium-air battery electrode material, the space utilization rate of the carbon material during the charge-discharge process can be increased at a maximum, and the energy density and the power density of the lithium-air battery can be effectively increased; and the preparation process is simple, the material source is wide, the pore structure of the graded pore carbon material can be regulated, the regulation manner is diverse, and the nitrogen doping manner is easily achieved.

The invention relates to an application of a porous carbon material with a grading pore structure in a lithium-air cell anode, and is characterized in that the carbon material has mutually communicated grading pore structure distribution which has a mesoporous structure for depositing the discharge products and a macroporous structure suitable for transmission of oxygen and an electrolyte. When the carbon material is taken as a material of the lithium-air cell anode, the space utilization rate of carbon material can be increased at maximum limitation during a charge and discharge process, specific discharge capacity, voltage platform and multiplying power discharge capability of the cell can be effectively increased, so that the energy density and power density of the lithium-air cell can be increased. The porous carbon material has the advantages that the preparation technology is simple, the material source is wide, the grading pore carbon material pore structure enables regulation and control, the regulation and control modes are various, and the doping of metal / metal oxide can be easily and simultaneously realized.

The invention discloses a preparation method for vanadium dioxide and doped powder thereof. The method comprises the following steps: 1, weighing vanadium pentoxide, hydrogen peroxide and distilled water, preparing the materials into a V<5+>-containing complex aqueous solution; 2, adding a reducing agent, a surfactant and a dopant to the complex aqueous solution, and stirring to form a clear solution; 3, transferring the resulting solution from the step 2 to a hydrothermal reaction kettle, and carrying out a reaction for 1-168 hours at a temperature of 140-220 DEG C to obtain the doped powderof the VO2(B); 4, placing the resulting doped powder of the VO2(B) from the step 3 in high pure argon atmosphere or nitrogen atmosphere, and annealing for 10-720 minutes at the temperature of 400-700DEG C to obtain the doped powder of the VO2(M). The method of the present invention has characteristics of low cost, simple process and easy control, and is suitable for the large-scale industrial production. With the method of the present invention, the doping of the VO2 powder material can be realized, and the doped atoms can be uniformly dispersed in the VO2.

The invention provides a preparation method of a supercapacitor carbon material. In the method, cheap and easily available biomass such as pericarp, vegetables and the like is taken as raw materials, and the supercapacitor carbon material is obtained through steps including thiourea hydro-thermal processing, impurity removing processing, freeze drying processing, calcining processing, alkali / microwave activation processing and the like. The material has the characteristics of a layered structure and a large specific surface area. Since a thiourea hydro-thermal step is carried out in a preparation process, S and N in thiourea molecules are introduced, the specific volume of the material is effectively improved, and an electrode prepared by use of the material has the advantages of large specific volume and good circulating stability. According to the invention, wastes such as watermelon peel, shaddock peel and the like and cheap vegetables such as sweet potatoes, radishes and the like are taken as the raw materials, such that the production cost is decreased, and the preparation method also accords with the strategy of sustainable development for environmental protection and has an important popularization value.

The invention belongs to the technical field of organic and inorganic composite materials, in particular to a preparation method of organic and inorganic composite fibrous materials with supercritical carbon dioxide. The method includes pre-treatment and activation treatment of cellulose, doping of inorganic sol to the cellulose, etc. The invention makes use of the strong permeability of the carbon dioxide under supercritical conditions, can activate the cellulose with cosolvent, or lead nano particles in the inorganic sol to be absorbed and settled on the surface of the cellulose to form an even, continuous and stable coating layer; meanwhile, some sol particles penetrate into the fiber, so as to dope plenty of cellulose. The supercritical carbon dioxide adopted by the invention is safe, reliable, non-toxic, no pollutant and recyclable, and is environment friendly green solvent. The method of the invention is simple and easy to be operated, and the hybrid material has broad application prospect.

Provided is an alkali metal doping method in the large-scale production of CIGS (copper, indium, gallium, selenium) thin-film solar cells. The method comprises a step of depositing an Mo metal back electrode layer on a glass substrate, a stainless indium substrate or a flexible substrate; a step of preparing a CIGS optical absorption layer; performing alkali metal element doping and deposition on the CIGS optical absorption layer; a step of performing thermal treatment on the alkali metal thin film formed after the deposition so as to make the alkali metal permeate into a CIGS crystal boundary and to improve characteristics of the crystal boundary; a step of cleaning alkali metal residues; a step of depositing a CdS, ZnS or InS buffer layer on the CIGS thin film after the cleaning of the alkali metal residues; and a step of depositing a high-resistance i-ZnO layer and a high-resistance ZnO:Al window layer, and thus a CIGS solar cell is formed. According to the alkali metal doping method, after annealing, the permeation of the alkali metal does not affect the generation of the CIGS crystal lattices; after the permeation of the alkali metal into the CIGS optical absorption layer, filling factors are substantially improved and the cell photoelectric conversion efficiency is improved when the open circuit voltage is improved.

The invention relates to a method for increasing performance parameters of a quantum dot sensitized solar battery. In the method, Ca<2+> is doped into CdS and serves as a sensitizing agent to assemble the quantum dot sensitized solar battery; the conduction band of Cds is enhanced, so electronic energy can be injected into TiO2 more effectively; meanwhile, the absorption state of the Cds quantum dot on the surface of an electrode material is improved, the dark current is restrained, and short circuit current and photoelectric conversion efficiency of the solar battery are improved. The processing method is simple, easy to operate, and low in cost.

The invention provides a preparation method of a high mesoporous rate nitrogen doped carbon electrode material. The preparation method comprises the following steps: step one, pretreatment; step two,hydrothermal reaction: carrying out the hydrothermal reaction on bamboo shoot shells to obtain a hydrochar precursor; step three, carbonation reaction: filtering, washing and drying the hydrochar precursor and then carrying out low temperature carbonization treatment on the dried hydrochar precursor and a nitrogen source material to obtain carbide; step four, activating treatment: carrying out theactivating treatment on the carbide and an activator, carrying out acid pickling, washing with deionized water and drying to obtain the high mesoporous rate nitrogen doped carbon electrode material of which an aperture main peak is 2.8nm. A symmetric supercapacitor assembled by applying an electrode material provided by the invention has the effects that specific capacitance reaches as high as 209F / g when current density is 0.5A / g; especially when the high current density is 10A / g, the symmetric supercapacitor has excellent stability, and the capacitance still reaches as high as 95 percent ofinitial capacitance after 10,000 cycles of charge and discharge.

The invention discloses a preparation method of a carbon nano-enzyme co-doped with active metal and nitrogen element and application thereof as a nano biological probe for detecting hydrogen peroxide.The method comprises the steps that: EDTA disodium and active metal are used as precursors, and are chelated to obtain an intermediate, the intermediate is subjected wot thermal polymerization underan inert atmosphere, and the reactant is ground, dispersed in water, ultrasonicated, filtered, dried to finally obtain the carbon nano-enzyme co-doped with the active metal and the nitrogen element. The method is simple and convenient to operate, and the large-scale preparation of carbon fluorescent quantum dots can be co-doped with the active metal and the nitrogen element without harsh reactionconditions, obtained carbon dots have good dispersibility and wider fluorescence emission range in aqueous solution. The nano-enzyme can be applied to the detection of hydrogen peroxide as a fluorescent probe, and has potential application value in the fields of medical imaging and detection of other biomolecules.

The invention discloses a preparation art, which belongs to the preparation art of photo-hydrolysis nanometer electrode. Particularly, the invention relates to a preparation method, which utilizes solar energy for water decomposition and production of hydrogen nanometer electrode. The invention uses the synthetic titanium oxide nanometer microspheres and other semiconductor materials, such as zinc oxide , to construct lamellar nanometer electrode. The application of lamellar doping method accelerates an efficient separation of electron and cavity, the titanium oxide nanometer microsphere structure increases contact area of the electrode surface and the electrolyte, the material is provided with high light conversion efficiency and photolysis efficiency, which improve the photo-hydrolysis efficiency. The preparation method has a simple manufacturing process, which decreases the manufacturing difficulty of semiconductor nanometer composite material and simplifies the implementation process of the electrode. Thus, the invention has a potential application value.

The invention relates to a nitrogen-doped porous carbon material used for anode of a lithium-air cell, which has a mutually communicated graded pore structure, N is uniformly doped in a C frame, wherein N accounts for 0.2-15% of carbon material, the graded pore comprises a mass transfer pore and a deposition pore, the pore volume of the deposition pore accounts for 40-95% of total pore volume, and the pore volume of the mass transfer pore accounts for 4-55% of total pore volume. The carbon material as the lithium-air cell material can greatly increase the space utilization rate of the carbon material during a charge and discharge process at maximum limit, so that lithium-air cell energy density and power density can be effectively increased. The nitrogen-doped porous carbon material used for anode of lithium-air cell has the advantages that the preparation technology is simple, the material source is wide, the pore structure of the graded aperture carbon material enables regulation and control, and the regulation and control modes are various, and the nitrogen doping mode is easy to realize.

The present invention relates to a nitrogen-doped porous carbon material for a lithium-air battery positive electrode. The nitrogen-doped porous carbon material is characterized in that the nitrogen-doped porous carbon material has an interconnected graded pore structure, N is uniformly doped in the C skeleton, N accounts for 0.2-15% of the carbon material atomic ratio, the graded pores comprise mass transfer pores and deposition holes, the deposition holes account for 40-95% of the total pore volume, and the mass transfer pores account for 4-55% of the total pore volume. According to the present invention, with application of the carbon material as the lithium-air battery electrode material, the space utilization rate of the carbon material during the charge-discharge process can be increased at a maximum, and the energy density and the power density of the lithium-air battery can be effectively increased; and the preparation process is simple, the material source is wide, the pore structure of the graded pore carbon material can be regulated, the regulation manner is diverse, and the nitrogen doping manner is easily achieved.

The invention discloses a light emitting diode (LED) fluorescent powder with single matrix white light excited by near ultraviolet and a preparation method thereof, the chemical formula of fluorescent powder is that: NM1-x-y-zPO4:xR, yG, zB, wherein N is freely selected from at least one of a group formed by Li, Na and K; M is freely selected from at least one of a group formed by Mg, Ca, Sr, Ba and Zn; R is freely selected from at least one of a group formed by Mn and Sm; G is Tb; and B is freely selected from at least one of a group formed by Ce and Eu, and x is higher than 0 but lower than 0.25, y is higher than 0 but lower than 0.25, and z is higher than 0 but lower than 0.25. The particle size of the prepared fluorescent according to the method provided by the invention is small and uniform, doping of fluorescent material activator on a molecule level is realized, three bands of red, green and blue can be emitted by excitation of near ultraviolet of 350-410nm, the color display index is high, and can be used in the white light LED excited by near ultraviolet.

The invention relates to a preparing method for sulfur-doped graphene to mainly solve the problems that in the prior art, the preparing reaction temperature of sulfur-doped graphene is high, the requirement for equipment is high, raw materials are extremely poisonous, and productivity is low. The preparing method comprises the following steps that firstly, oxidized graphite is subjected to ultrasonic exfoliation in a solvent, and an oxidized graphene solution is obtained; secondly, the oxidized graphene solution and a sulfur compound are mixed and subjected to ultrasonic treatment to be dispersed and mixed evenly, and a mixture is obtained; thirdly, the mixture is subjected to a hydrothermal reaction, and the sulfur-doped graphene is obtained. The problems are well solved though the technical scheme, and the preparing method can be used for the industrial production of sulfur-doped graphene.

The invention belongs to the field of chemical functional materials and discloses a film-coating liquid of a vanadium dioxide thin film and a preparation method and application of the vanadium dioxide thin film. The film-coating liquid of the vanadium dioxide thin film comprises the following solutes in percentage by weight: a compound of tetravalent vanadium with the mol concentration of 0.001-10Mol / L and addictive with mass percentage of 0.01-40, wherein the addictive is selected from one or more of oleinic acid, hydrochloric acid, hydrofluoric acid, aqueous ammonia, hydrogen peroxide, glycol, glycerol, oleyl amine, cetyl trimethylammonium bromide, tetraproylammonium bromide and polyving akohol. The invention also discloses a preparation method of the vanadium dioxide thin film and can obtain a rutile type vanadium dioxide thin film with high visible transmissivity and infrared intelligent regulation and control capability, so that the thin film prepared by the method can meet energy-saving windows with different application requirements. The invention has the advantages of simple preparation process, favorable safety and suitability for large-scale industrial preparation and generalization.

The invention relates to a method for growth of a germanium nitrogen codoped silicon carbide single crystal material. A PVT method is adopted according to the method; in the germanium-doped silicon carbide single crystal growth process, nitrogen at a certain proportion is led into a growth atmosphere, argon is led in to serve as a carrier gas with the pressure controlled to be 700-850 mbar, argon flow is 15-30 sccm, and the nitrogen flow is 0.5-2 sccm; and the germanium nitrogen codoped silicon carbide single crystal is obtained. On the one hand, high-concentration germanium element doping is implemented, and on the other hand, by adjusting specific doping concentration of germanium and nitrogen, the goal of increasing silicon carbide crystal lattice fitness degree, reducing crystal stress and improving crystal quality is achieved. Application of the silicon carbide crystal material to visible light and infrared light wave bands is expanded.

The invention discloses a N-doped porous carbon / NiO composite material and a preparation method therefor. The preparation method comprises the following steps: first, coal-based polyaniline is prepared through a in-situ polymerization method; second, nickle powder and coal-based polyaniline are mixed uniformly to obtain a mixture, the mixture is subjected to pyrolysis and a N-doped porous carbon / Ni composite material is obtained; third, hydrogen peroxide and sulfuric acid are mixed uniformly and a mixed solution A is obtained; fourth, the N-doped porous carbon / Ni composite material is added in the mixed solution A, after mixing processing is carried out, the pH value is adjusted to 7-8 through ammonium hydroxide, next a urea aqueous solution is added drop by drop, insulation stirring is carried out, pumping filtration is carried out after cooling, a filter cake is washed, the filter cake is calcined, and a N-doped porous carbon / NiO composite material is obtained. N-doped porous carbon in the N-doped porous carbon / NiO composite material prepared through the method shows pore structure characteristics of meso pores as the main and macropores as the part and NiO in the composite material exists in a form of nanosheets or nanospheres.

The invention relates to a nitrogen-doped graphene / nano titanium dioxide photocatalyst as well as a preparation method and application thereof. The nitrogen-doped graphene / nano titanium dioxide photocatalyst contains nitrogen-doped graphene, and titanium dioxide supported to the nitrogen-doped graphene, wherein the nitrogen-doped graphene contains a nitrogen source; the nitrogen source comprises graphite nitrogen and pyrrole nitrogen; and a mass ratio of the nitrogen-doped graphene to titanium dioxide is (0.005-0.05):1, preferably (0.01-0.02):1.

The invention provides a preparation method of a nitrogen-doped titanium dioxide photochemical catalyst loaded with a foam metal carrier. In the preparation method provided by the invention, a vacuum arc ion plating process is used and a prepared nitrogen-doped titanium dioxide film of a photochemical catalyst can be uniformly distributed on the surface of a porous metal, so that the contact areafor a catalytic reaction of the photochemical catalyst is increased and the photocatalytic activity of the photochemical catalyst is higher.

The invention relates to a functional thin film material preparing technology, which adopts improved ion beam amplify deposited method to make the film and combines the subsequent crystallization and annealing to achieve the impurity element even immersing and the effective place-replacing to vanadium so that the phase starting temperature of the thin film reduces to 12-16 deg. It adjusts the argon / hydrogen ratio film craft and crystallizing heat treatment condition so that when the polycrystalline VO2 thin film transfers to the mental phase from the semiconductor phase, the change of the resistance ratio over 2 magnitude orders.

The invention provides a method for reparative regeneration of a lithium cobalt oxide anode material in waste batteries. The method includes: separating the anode material from lithium cobalt oxide waste batteries; laying positive pole pieces on a mesh belt, and controlling the mesh belt to vibrate continuously while controlling gas to pass through the meshes of the mesh belt from bottom to top; under conditions of vibration of the mesh belt and gas circulation of the meshes of the mesh belt, respectively heating the positive pole pieces for 10-60min at 100-300 DEG C and 380-520 DEG C, and collecting anode material powder I; sequentially subjecting the anode material powder I to screening removal of broken aluminum foils and electromagnetic removal of iron to obtain anode material powder II, and sampling to detect contents of Li, Co and Al in the anode material powder II; replenishing Li element and Al element to the anode material powder II according to a detection result obtained at the step 4 to obtain anode material powder III, wherein a mole ratio of Li to Co to Al is 1-1.05:1-x:x, and x refers to 0.05-0.2; subjecting the anode material powder III to ball milling in a high-energy ball mill to obtain anode material powder IV; calcining the anode material powder IV in a pure oxygen atmosphere to obtain repaired regenerated lithium cobalt oxide.

The invention provides single matrix white light fluorescent powder for a white light LED and a preparation method thereof. The chemical composition of the fluorescent powder is Ca2SiO3Cl2: xEu2+, yMn2+, wherein the value ranges of the x and the y are 0.5 to 3 percent. The preparation method comprises the following steps of: dissolving calcium nitrate tetrahydrate and anhydrous calcium chloride into distilled water to obtain solution A; preparing europium nitrate solution B; dissolving the solution B and manganese nitrate tetrahydrate into the solution A together, and stirring the mixture uniformly to obtain solution C; adding anhydrous ethanol into the solution C, stirring the solution uniformly, then adding tetraethoxysilane into the solution, adjusting the pH to between 2 and 3, and stirring the mixture for 1 hour in a 80 DEG C water bath to obtain precursor sol; preparing the precursor sol into wet sol and then preparing the wet sol into dry sol, performing hydrothermal reaction on the dry sol in a reaction kettle, and naturally cooling the reaction product to room temperature after the reaction is finished; and finally, centrifuging and washing the reaction product to obtain a final product. The fluorescent powder prepared by the method emits three bands of 428 nanometers, 500 nanometers and 581 nanometers, and the three bands are superposed to generate white light for emitting; the fluorescent powder has small grain size and uniform distribution, and is like spheroid; and the preparation method is simple and has low energy consumption and low equipment requirement.

The invention belongs to the technical field of carbon-sulfur batteries and particularly relates to an amino functional carbon-sulfur composite material of a porous structure and a preparation method and application of the material. Polyimide serves as the raw material, is pre-oxidized and then synthesized into an amino-containing carbon material precursor of the porous structure by means of a pore forming agent at the nitrogen atmosphere through high-temperature carbonization, the precursor and elemental sulfur are subjected to heat treatment, and the carbon-sulfur composite material is obtained. The process is simple, reproducibility is good, and the prepared composite material has a rich pore structure and can be used for the positive pole of a carbon-sulfur battery. Amino groups in the composite material can enhance constraint to polysulfide anions, dissolution and migration of the polysulfide anions in electrolyte are reduced, electric chemical performance of the positive pole material of the carbon-sulfur battery is improved, and specific discharge capacity, rate capability and cycle performance are good.

The invention belongs to the technical field of medical biomaterials, and discloses a nano-cone structure composite for capturing cancer cells, and a preparation method and application thereof. The method includes: electrodepositing chlorine-doped polypyrrole on the surface of a conductive substrate by the aid of chronoamperometry; selecting a three-electrode pattern to deposit polypyrrole / biotin material with nano-cone structure on a working electrode by the aid of chronopotentiometry by using a conductive metal as a counter electrode, the polypyrrole-deposited conductive substrate as the working electrode and a buffer solution containing pyrrole and biotin as an electrolyte; activating the working electrode deposited the polypyrrole / biotin material with nano-cone structure, culturing in streptavidin solution, performing grafting reaction with antibodies, and culturing in BSA (bull serum albumin) solution to obtain the nano-cone structure composite. The method is simple and low in cost, the nano-cone structure in the composite is stable, and cancer cells can be effectively captured and nondestructively released.

The invention relates to a method for preparing nanometer zinc oxide whiskers doped with transitional mental. Zinc powder, zinc oxide, alkaline zinc carbonate or zinc hydroxide, and the like are used as zinc predecessors, and metal and metal chloride are used as doped element predecessors. After being mechanically mixed, the zinc predecessors and the doped element predecessors are added to plasma arcs to have a gas phase reaction after high-frequency induction plasma is instantaneously gasified at a high temperature, and then the uniformly doped nanometer zinc oxide whiskers are obtained by appearance control in a condensing process. The method is characterized by being applied to the doping of various elements and having high doping content and strong suitability, and the prepared nanometer zinc oxide whiskers are uniformly doped and have controllable appearance. The invention has short technological process and high yield and can continue mass production.

The invention relates to a bimetal supported magnetic visible-light composite catalytic material, and a preparation method and application thereof, belonging to the technical field of photocatalytic degradation. The invention provides the bimetal supported magnetic visible-light composite catalytic material, and the preparation method and application thereof to overcome problems in realization ofboth high catalytic activity and easy recoverability. The visible-light composite catalytic material comprises Fe / Zr-MOF, Fe3O4 and g-C3N4. Fe3O4 is doped into g-C3N4 to form Fe3O4-g-C3N4; and Fe / Zr-MOF is used as a carrier. The method comprises the following steps: adding urea and Fe3O4 into a solvent, carrying out dispersion and mixing, and performing desolventization and drying; then performingcalcining at a high temperature to obtain Fe3O4-g-C3N4; and adding Fe3O4-g-C3N4, an iron source, a zirconium source and an organic ligand into a water-soluble solvent and performing sintering. The composite catalytic material can be used for catalytic degradation of organic pollutants, is easy to recover and has high catalytic activity.

The invention discloses an aluminum-doped zinc oxide-based thermoelectric material and a preparation method thereof, and belongs to the field of environment-friendly new energy materials. The chemical composition of the zinc oxide-based thermoelectric material is Zn1-xAlxO (x is more than or equal to 0 and less than or equal to 0.20); and the electrical conductivity of the thermoelectric material is 65 to 1,100 S / cm, and the thermal conductivity of the thermoelectric material is 8 to 35 W / m / k. The method for preparing the aluminum-doped zinc oxide-based thermoelectric material comprises the following steps of: proportioning Zn(OH)2 powder and Al(OH)3 powder according to the stoichiometry of Zn1-xAlxO (x is more than or equal to 0 and less than or equal to 0.20); ball-milling and mixing the proportioned raw material powder; roasting the mixed powder at the temperature of between 100 and 550 DEG C in a corundum crucible; and filling the roasted powder into a graphite die and sintering the powder at the temperature of between 500 and 1,200 DEG C to obtain the aluminum-doped zinc oxide-based thermoelectric material. By the method, doping is easier to realize and the high-compactness material can be obtained; and the obtained material has good mechanical property and thermoelectric property.

The invention discloses a preparation method of an ultra-long stibium-doped zinc oxide micrometer line, belonging to the technical filed of nano / micrometer material preparation. The basic process is as follows: utilizing cleaning agent to wash out a silicon substrate, then sputtering a layer of Au film of 20nm by magnetic control to be used as a precipitation substrate; completely mixing Zn powder, Sb2O3 powder and C powder in a certain mole ratio evenly, and placing the mixed powder which is used as a reaction source in a ceramic boat, wherein the powder mixing process can utilize a ball milling method; putting a bearing reaction source and the ceramic boat of the substrate into the middle part of a quartz tube in a tube furnace, regulating a flow meter to introduce the mixed gas of argon and oxgen into a quartz tube under the condition that the total flow is 300cm3 / min and argon in the mixed gas accounts for 98% and oxygen accounts for 2%, heating the tube furnace to 930-950 DEG C under the atmosphere, then keeping the temperature for about 10min, after the preparation reaction finishes, taking out the silicon substrate and cooling to room temperature to obtain the product of the ultra-long stibium-doped zinc oxide micrometer line. The invention realizes the preparation of the ultra-long stibium-doped zinc oxide micrometer line, has simpler process, can ensure high quality products and has good controllability.

The invention discloses a nitrogen-oxygen-sulfur triple-doped porous carbon material and a preparation method thereof, and belongs to the field of new energy materials. A fungus tremella is selected as a precursor, a nitrate is selected as an activating agent, the mass ratio of the tremella to the activating agent is controlled to be 1:0.1-1:5, and relevant treatment is carried out to obtain a tremella-activator mixture; the mixture is put into a tubular furnace, and carbonization activation is carried out under an inert atmosphere; full washing is further carried out in diluted hydrochloric acid and distilled water for removing impurities; and drying is carried out in a drying oven to obtain the nitrogen-oxygen-sulfur triple-doped porous carbon material. The preparation method provided bythe invention is simple and feasible, cost is low, and the obtained nitrogen-oxygen-sulfur triple-doped carbon material has a hierarchical and open pore structure, has a large specific surface area,can be applied to electrode materials of supercapacitors, and has high specific capacitance, good rate performance and high energy density during a test at 0-60 DEG C.