CN110331469A - The preparation method and applications of CuO/Cu nitrogen-doped carbon nano-fiber material - Google Patents

The preparation method and applications of CuO/Cu nitrogen-doped carbon nano-fiber material Download PDF

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Publication number
CN110331469A
CN110331469A CN201910656049.5A CN201910656049A CN110331469A CN 110331469 A CN110331469 A CN 110331469A CN 201910656049 A CN201910656049 A CN 201910656049A CN 110331469 A CN110331469 A CN 110331469A
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nitrogen
cuo
carbon nano
doped carbon
fiber material
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高林
王祖静
杨学林
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China Three Gorges University CTGU
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China Three Gorges University CTGU
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
    • D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
    • D01F9/21—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F9/22—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H01M4/622—Binders being polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H01M4/625—Carbon or graphite
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027—Negative electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The present invention provides a kind of preparation methods of kalium ion battery negative electrode material CuO/Cu nitrogen-doped carbon nano-fiber.Utilize polyacrylonitrile (PAN) and N, dinethylformamide (DMF) is made into high polymeric solution, solution is continued stirring until to be transparent, a water copper acetate is added, it is uniform that solution is continued stirring until again, is recycled electrostatic spinning technique, is obtained as-spun fibre, it is final to obtain CuO/Cu nitrogen-doped carbon nano-fiber by two sections of heat treatment processes.Compared to other traditional preparation methods, the present invention is more uniform by the nanofibers of dimensions that method of electrostatic spinning is prepared, partial size is smaller, and it is preferable using the CuO/Cu nitrogen-doped carbon nano-fiber toughness of the method preparation, it can be directly as self-supporting electrode, as kalium ion battery negative electrode material, there is good chemical property.

Description

The preparation method and applications of CuO/Cu nitrogen-doped carbon nano-fiber material
Technical field
The present invention relates to a kind of kalium ion battery negative electrode material more particularly to a kind of method of electrostatic spinning CuO/Cu nitrogen-doped carbons The preparation of nano-fiber material belongs to kalium ion battery negative electrode material field.
Background technique
With the raising that the progress and people of human society science and technology require material life, people are to using energy source Demand is growing day by day.Lithium ion battery is used widely in each field, but the storage capacity due to lithium resource on earth It is less, cause lithium ion battery manufacturing cost constantly to rise.There is similar property with the sodium and potassium of main group with lithium, and in the earth On storage capacity be much larger than lithium, so in recent years, sodium-ion battery, kalium ion battery are increasingly becoming the research heat of researchers Point.At present for the research of kalium ion battery negative electrode material, more is research carbon based negative electrodes material.Due to potassium ion radius compared with Greatly, cycle performance high rate performance is not satisfactory.The present invention constructs carbon fiber guiding electric network, and draw by electrostatic spinning technique Enter nitrogen and CuO, Cu come reinforcing fiber toughness and electric conductivity, so as to improve chemical property.Material prepared is used as from branch Electrode is supportted, takes simple to operation, the strong preparation method of repeatability greatly improves chemical property, has good answer Use prospect.
Summary of the invention
It is an object of the invention to be original with polyacrylonitrile (PAN), N,N-dimethylformamide (DMF), a water copper acetate Material, prepares as-spun fibre using electrostatic spinning technique, then be heat-treated, obtains a kind of kalium ion battery cathode of self-supporting Material C uO/Cu nitrogen-doped carbon nano-fiber.
Raw material according to the present invention has polyacrylonitrile (PAN), N,N-dimethylformamide (DMF), a water copper acetate.Tool Preparation is as follows: (1) measuring a certain amount of n,N-Dimethylformamide and pour into container, be placed on blender, weigh poly- third Alkene nitrile is added thereto, and continuing magnetic force stirs certain time, stirs into homogeneous and transparent PAN spinning solution.(2) it weighs a certain amount of PAN spinning solution is added in one water copper acetate, and continuing magnetic force stirs into uniform spinning precursor solution.(3) the appropriate spinning is taken Precursor solution is added in plastic injector, is placed on electrostatic spinning apparatus, and parameter is arranged, and carries out spinning, and just spinning can be obtained Fiber.(4) it takes as-spun fibre off, is placed in 60-70oIt is dried in C baking oven, then fiber membrane is placed in tube furnace, in air ring High-temperature calcination is carried out in nitrogen atmosphere after pre-oxidizing a period of time at a temperature of being suitble in border, and self-supporting material can be obtained Material.
When configuring spinning precursor solution, the mass concentration of polyacrylonitrile is 10-15%, and the concentration of a water copper acetate is added For 0.0005 ~ 0.0015mol/L.
During electrostatic spinning, syringe needle is No. 22 syringe needles, syringe needle be stained with the reception device distance of aluminium foil for 15 ~ 20cm, positive voltage are 15 ~ 16kV, and injecting speed is 0.3 mm min-1。
After the pre-oxidation is electrostatic spinning, as-spun fibre is placed in 50 ~ 80oBy it in the air dry oven of C Drying, then be placed in tube furnace in air atmosphere with 2-3oThe heating rate of C/min, 200-250oC is heat-treated 2-4h.
The high-temperature calcination is in nitrogen atmosphere with 2-3oThe heating rate of C/min, 700-800oC heat treatment 0.5 -2h。
The invention patent prepares kalium ion battery self-supporting negative electrode material CuO/Cu nitrogen-doped carbon using method of electrostatic spinning and receives Rice fibrous material has the special feature that as follows:
(1) preparation method of the present invention is simple to operation, and repeatability is strong, and preparation cost is low.
(2) the nanofiber partial size prepared using this method is smaller, is uniform, good toughness, can be directly as self-supporting electricity Pole.
(3) high polymer used in the present invention is polyacrylonitrile, due to the low-carbon temperature in heat treatment process relatively, centainly The nitrogen of amount has been doped in carbon fiber from the precursor of polyacrylonitrile (PAN), and nitrogen can be with NH when the temperature is excessively high3、CH4Etc. shapes Formula discharges, and too low temperature cannot achieve the purpose that pre-oxidation and carbonization, and moderate moisture can make certain nitrogen member Element remains, and is doped in fiber.The doping of nitrogen can provide more polyelectron, the electric conductivity of Lai Gaishan fiber, to improve From the chemical property of kalium ion battery.
(4) it can be seen that CuO/Cu by XRD and TEM figure to be evenly distributed in carbon fiber with amorphous state, reinforcing material Toughness and electric conductivity, improve the chemical property from kalium ion battery.
Detailed description of the invention
Fig. 1 is the XRD diagram of sample prepared by embodiment 1 and embodiment 2.
Fig. 2 is that the SEM of 1 gained sample of embodiment schemes.
Fig. 3 is that the SEM of 4 gained sample of embodiment schemes.
Fig. 4 is the charge-discharge performance figure and cycle performance figure of 1 gained sample of embodiment.
Fig. 5 is the charge-discharge performance figure and cycle performance figure of 4 gained sample of embodiment.
Fig. 6 is 1 gained sample of embodiment in 100 mA g-1The SEM of material schemes after 100 circle of circulation under current density.
Fig. 7 is 4 gained sample of embodiment in 100 mA g-1The SEM of material schemes after 100 circle of circulation under current density.
Fig. 8 is that the XPS of 4 gained sample of embodiment schemes.
Fig. 9 is that the TG of 4 gained sample of embodiment schemes.
Figure 10 is the TEM figure and Mapping figure of 1 gained sample of embodiment.
Figure 11 is the TEM figure and Mapping figure of 4 gained sample of embodiment.
Specific embodiment
Embodiment 1
It measures 10mL n,N-Dimethylformamide to pour into the beaker of 25 mL cleaning, is placed on blender, weighs 12.5g poly- third Alkene nitrile is added thereto, and continuing magnetic force stirs 3 ~ 6 h, and stirring to solution is in homogeneous and transparent PAN spinning solution.By spinning forerunner Liquid solution is transferred in the plastic injector with No. 22 syringe needles, is placed on electrostatic spinning apparatus, and electrospinning parameters, needle is arranged Head is 15 ~ 20cm with the reception device distance for being stained with aluminium foil, and positive voltage is 15 ~ 16kV, and injecting speed is 0.3 mm min-1, so After carry out spinning, as-spun fibre can be obtained.As-spun fibre is removed, is placed in 70oIt is baked in C baking oven, then by fiber membrane It is placed in tube furnace, with 2 in air environmentoThe heating rate of C/min is warming up to 230oC pre-oxidizes 3h, and then 2 in nitrogen With 2 in atmosphereoThe heating rate of C/min is warming up to 720oC calcines 1h, and cooled to room temperature can be obtained nitrogen-doped carbon and receive Rice fibrous material.Found out by Fig. 1 XRD characterization result, a main carbon peak, passes through Fig. 2 SEM characterization result as the result is shown Find out, prepared material morphology maintains filiform, and diameter is about in 300nm or so.Electrode slice is made in its material, with Metallic potassium is assembled into kalium ion battery and carries out electrochemical property test, in 100 mA g-1Its initial specific capacities is under current density 648.7mAh g-1, it is 38.06% that coulombic efficiency is lower for the first time, and after the 100 continuous charge-discharge tests of circle, capacity attenuation is more Seriously (such as Fig. 4).By Fig. 6, in 100 mA g-1The SEM figure of material can be seen that pass after 100 circle of circulation under current density The electrode of system method preparation, destroys fibre structure, so its stable electrochemical property is poor.But the sample as obtained by Figure 10 The TEM figure and Mapping figure of product are as can be seen that prepared fiber size is uniform, and fiber surface is smooth, and Elemental redistribution is equal It is even.
Embodiment 2
It measures 10mL n,N-Dimethylformamide to pour into the beaker of 25 mL cleaning, is placed on blender, weighs 12.5g poly- third Alkene nitrile is added thereto, and continuing magnetic force stirs 3 ~ 6 h, and stirring to solution is in homogeneous and transparent PAN spinning solution.It weighs A water copper acetate of 0.0005mol is added in PAN spinning solution, and continuing magnetic force stirs into uniform spinning precursor solution.It will The spinning precursor solution is transferred in the plastic injector with No. 22 syringe needles, is placed on electrostatic spinning apparatus, and electrostatic is arranged Spinning parameter, syringe needle are 15 ~ 20cm with the reception device distance for being stained with aluminium foil, and positive voltage is 15 ~ 16kV, and injecting speed is 0.3 mm min-1, spinning is then carried out, as-spun fibre can be obtained.As-spun fibre is removed, is placed in 70oIt is baked in C baking oven, then Fiber membrane is placed in tube furnace, with 2 in air environmentoThe heating rate of C/min is warming up to 230oC pre-oxidizes 3h, so Afterwards 2 in nitrogen atmosphere with 2oThe heating rate of C/min is warming up to 720oC calcines 1h, and cooled to room temperature can be obtained CuO/Cu nitrogen-doped carbon nano-fiber material.
Embodiment 3
It measures 10mL n,N-Dimethylformamide to pour into the beaker of 25 mL cleaning, is placed on blender, weighs 12.5g poly- third Alkene nitrile is added thereto, and continuing magnetic force stirs 3 ~ 6 h, and stirring to solution is in homogeneous and transparent PAN spinning solution.It weighs A water copper acetate of 0.0010mol is added in PAN spinning solution, and continuing magnetic force stirs into uniform spinning precursor solution.It will The spinning precursor solution is transferred in the plastic injector with No. 22 syringe needles, is placed on electrostatic spinning apparatus, and electrostatic is arranged Spinning parameter, syringe needle are 15 ~ 20cm with the reception device distance for being stained with aluminium foil, and positive voltage is 15 ~ 16kV, and injecting speed is 0.3 mm min-1, spinning is then carried out, as-spun fibre can be obtained.As-spun fibre is removed, is placed in 70oIt is baked in C baking oven, then Fiber membrane is placed in tube furnace, with 2 in air environmentoThe heating rate of C/min is warming up to 230oC pre-oxidizes 3h, so Afterwards 2 in nitrogen atmosphere with 2oThe heating rate of C/min is warming up to 720oC calcines 1h, and cooled to room temperature can be obtained CuO/Cu nitrogen-doped carbon nano-fiber material.
Embodiment 4
It measures 10mL n,N-Dimethylformamide to pour into the beaker of 25 mL cleaning, is placed on blender, weighs 12.5g poly- third Alkene nitrile is added thereto, and continuing magnetic force stirs 3 ~ 6 h, and stirring to solution is in homogeneous and transparent PAN spinning solution.It weighs A water copper acetate of 0.0015mol is added in PAN spinning solution, and continuing magnetic force stirs into uniform spinning precursor solution.It will The spinning precursor solution is transferred in the plastic injector with No. 22 syringe needles, is placed on electrostatic spinning apparatus, and electrostatic is arranged Spinning parameter, syringe needle are 15 ~ 20cm with the reception device distance for being stained with aluminium foil, and positive voltage is 15 ~ 16kV, and injecting speed is 0.3 mm min-1, spinning is then carried out, as-spun fibre can be obtained.As-spun fibre is removed, is placed in 70oIt is baked in C baking oven, then Fiber membrane is placed in tube furnace, with 2 in air environmentoThe heating rate of C/min is warming up to 230oC pre-oxidizes 3h, so Afterwards 2 in nitrogen atmosphere with 2oThe heating rate of C/min is warming up to 720oC calcines 1h, and cooled to room temperature can be obtained CuO/Cu nitrogen-doped carbon nano-fiber material.Found out by Fig. 1 XRD characterization result, a main carbon peak, does not have as the result is shown There is the peak for measuring CuO, Cu, illustrates that the two is present in nanofiber in the form of amorphous.It is seen by Fig. 2 SEM characterization result Out, prepared material morphology dimension is more complete, is more uniform filiform, diameter is about in 280nm or so.Material prepared Toughness is preferable, is directly cut into 1 × 1 cm2The bulk of size or so is assembled into potassium ion electricity as self-supporting electrode and metallic potassium Pond carries out electrochemical property test, in 100 mA g-1Its initial specific capacities is 349.8 mAh g under current density-1, but for the first time Coulombic efficiency is significantly improved compared with embodiment 1, embodiment 2, embodiment 3, is 55.34%, by the 100 continuous charge-discharge tests of circle Afterwards, capacity retention ratio is also improved, and cyclical stability is significantly improved (such as Fig. 5) compared with embodiment 1, embodiment 2, embodiment 3. It can be seen that preparation method of the invention by Fig. 8 XPS map and be successfully mixed with nitrogen, N doping is derived from poly- third The pyrolysis of alkene nitrile.CuO, Cu are uniformly present among carbon nano-fiber.By Fig. 9 TG figure as can be seen that this embodiment is made The phosphorus content of standby material is 83.87%.In conclusion the chemical property of this embodiment is optimal.By Fig. 7, in 100 mA g-1The material structure that the SEM figure of material can be seen that after recycling after 100 circle of circulation under current density is not destroyed, still Than more uniform threadiness, so the chemical property circulation that self-supporting electrode material is shown prepared by this embodiment is steady It is qualitative preferable, it has excellent performance.And the TEM figure and Mapping figure of the sample as obtained by Figure 11 can be seen that prepared fiber ruler Very little uniform, fiber surface is smooth, is conducive to form more stable SEI film on surface.Selective electron diffraction is a careless and sloppy light Spot, meanwhile, high-resolution TEM figure does not also see lattice fringe, illustrates that CuO, Cu are present in fiber in the form of amorphous.? Fiber surface does not see the particle of CuO, Cu, and each element is evenly distributed, illustrate CuO, Cu be evenly distributed in fiber it In.

Claims (7)

  1. The preparation method of 1.CuO/Cu nitrogen-doped carbon nano-fiber material, which is characterized in that use polyacrylonitrile and N, N- dimethyl Formamide is made into high polymeric solution, continues stirring until solution and is transparent, be added mantoquita, then continuing magnetic force stir it is equal to solution One, by the solution through electrostatic spinning, as-spun fibre is obtained, is heat-treated, is obtained by pre-oxidation and two sections of high-temperature calcination after dry CuO/Cu nitrogen-doped carbon nano-fiber material.
  2. 2. the preparation method of CuO/Cu nitrogen-doped carbon nano-fiber material according to claim 1, which is characterized in that described Mantoquita be a water copper acetate.
  3. 3. the preparation method of CuO/Cu nitrogen-doped carbon nano-fiber material according to claim 1, which is characterized in that described High polymeric solution in, the mass concentration of polyacrylonitrile is 10-15%, and the concentration of mantoquita is 0.0005 ~ 0.0015mol/L.
  4. 4. the preparation method of CuO/Cu nitrogen-doped carbon nano-fiber material according to claim 1, which is characterized in that electrostatic In spinning process, syringe needle is No. 22 syringe needles, and syringe needle and the reception device distance for being stained with aluminium foil are 15 ~ 20cm, positive voltage For 15 ~ 16kV, injecting speed is 0.3 mm min-1。
  5. 5. the preparation method of CuO/Cu nitrogen-doped carbon nano-fiber material according to claim 1, which is characterized in that will be quiet The as-spun fibre obtained after Electrospun is placed in 50 ~ 80oIt dries, then is placed in tube furnace in the air dry oven of C, in air atmosphere In with 2-3oThe heating rate of C/min, 200-250oC is heat-treated 2-4h.
  6. 6. the preparation method of CuO/Cu nitrogen-doped carbon nano-fiber material according to claim 1, which is characterized in that described High-temperature calcination be in nitrogen atmosphere with 2-3oThe heating rate of C/min, 700-800oC is heat-treated 0.5-2h.
  7. 7. the CuO/Cu nitrogen-doped carbon nano-fiber material being prepared using any one of claim 1-6 method prepare potassium from Application on sub- battery cathode self-supporting electrode.
CN201910656049.5A 2019-07-19 2019-07-19 The preparation method and applications of CuO/Cu nitrogen-doped carbon nano-fiber material Pending CN110331469A (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN112582619A (en) * 2020-12-14 2021-03-30 安徽大学 Preparation method, product and application of nitrogen and oxygen co-doped carbon nanofiber material
CN112726201A (en) * 2021-01-13 2021-04-30 无锡东恒新能源科技有限公司 Carbon nanowire and application thereof in lithium battery
CN114208849A (en) * 2021-10-28 2022-03-22 上海大学 Copper oxide-polymer composite material and preparation and application method thereof
CN114566635A (en) * 2022-03-08 2022-05-31 南京大学 Composite electrode material, preparation method thereof and potassium ion battery

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CN108321401A (en) * 2018-03-01 2018-07-24 上海电力学院 A kind of preparation method of iron, cobalt, nitrogen co-doped carbon nano-fiber catalyst
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CN106400202A (en) * 2016-07-04 2017-02-15 长春理工大学 A method of preparing copper sulphide nanometer fibers
CN108321401A (en) * 2018-03-01 2018-07-24 上海电力学院 A kind of preparation method of iron, cobalt, nitrogen co-doped carbon nano-fiber catalyst
CN108914153A (en) * 2018-06-08 2018-11-30 深圳大学 A kind of nitrogen-doped carbon nano-fiber elctro-catalyst and the preparation method and application thereof

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112582619A (en) * 2020-12-14 2021-03-30 安徽大学 Preparation method, product and application of nitrogen and oxygen co-doped carbon nanofiber material
CN112726201A (en) * 2021-01-13 2021-04-30 无锡东恒新能源科技有限公司 Carbon nanowire and application thereof in lithium battery
CN114208849A (en) * 2021-10-28 2022-03-22 上海大学 Copper oxide-polymer composite material and preparation and application method thereof
CN114566635A (en) * 2022-03-08 2022-05-31 南京大学 Composite electrode material, preparation method thereof and potassium ion battery

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Application publication date: 20191015