CN107190361A - A kind of tungsten selenide/graphene/carbon nano-fiber composite material and preparation method thereof - Google Patents
A kind of tungsten selenide/graphene/carbon nano-fiber composite material and preparation method thereof Download PDFInfo
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- CN107190361A CN107190361A CN201710254915.9A CN201710254915A CN107190361A CN 107190361 A CN107190361 A CN 107190361A CN 201710254915 A CN201710254915 A CN 201710254915A CN 107190361 A CN107190361 A CN 107190361A
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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
- 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
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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
- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/52—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with selenium, tellurium, polonium or their compounds; with sulfur, dithionites or compounds containing sulfur and halogens, with or without oxygen; by sulfohalogenation with chlorosulfonic acid; by sulfohalogenation with a mixture of sulfur dioxide and free halogens
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/40—Fibres of carbon
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Abstract
The invention provides a kind of tungsten selenide/graphene/carbon nano-fiber composite material and preparation method thereof, step is as follows:(1) polyacrylonitrile spinning solution is prepared;(2) polyacrylonitrile nanofiber is prepared;(3) pre-oxidation treatment is carried out to polyacrylonitrile nanofiber;(4) graphene oxide dispersion is prepared;(5) its chlorinated polypropylene nitrile nanofibre is soaked in graphene oxide dispersion and carries out self assembly, obtain graphene oxide/its chlorinated polypropylene nitrile nanofibre;(6) graphene oxide/its chlorinated polypropylene nitrile nanofibre is subjected to high temperature cabonization, obtains graphene/carbon nano-fiber composite material;(7) in graphene/carbon nano-fiber composite material superficial growth tungsten selenide nanometer sheet, tungsten selenide/graphene/carbon nano-fiber composite material is obtained.Preparation process of the present invention is simple, it is easy to operate, low cost of raw materials, environment-friendly.
Description
Technical field
The invention belongs to functionalized carbon nanofiber field, and in particular to a kind of tungsten selenide/graphene/carbon nanofiber is answered
Condensation material and preparation method thereof.
Background technology
Carbon fiber is a kind of new fiber materials of phosphorus content more than 95%, and its quality is lighter than metallic aluminium, but intensity
Higher than steel, and all it is important materials in defence and military and civilian aspect with corrosion-resistant, high-modulus characteristic.Meanwhile, carbon
The good electrical and thermal conductivity performance of fiber makes it be with a wide range of applications in energy stores of new generation and conversion art.
Electrostatic spinning technique as a kind of convenience, the nanofiber technology of preparing of low cost, can prepare specific surface area it is big,
The high nano fiber non-woven fabric material of porosity.By to Static Spinning polymer nanofiber, such as polyacrylonitrile or polyimides
Nanofiber, is carbonized and graphitization processing, can obtain carbon nano-fiber nonwoven cloth material.Compared to traditional carbon fibres cloth,
Static Spinning carbon nano-fiber has the specific surface area of lower density and Geng Gao, but is constrained to relatively low carburizing temperature and smaller
The microcosmic diameter of fiber, the usual mechanical strength of Static Spinning carbon nano-fiber is poor, and electric conductivity is relatively low.In addition, with more and more
Researcher by electro spinning nano fiber materials application in novel energy-storing material, the relatively low electro-chemical activity of electrospinning carbon nano-fiber
Seriously constrain its performance.Therefore, a kind of cost-effective method is found to strengthen the electric conductivity of Static Spinning carbon fiber
Challenge is still had much with electro-chemical activity.
Graphene is a kind of typical two-dimensional nano-carbon material, by carbon atom with sp2Hydridization arrangement, it is tightly packed
Honeycomb lattice structure, turns into because it has the advantages that density is small, specific surface area is big, carrier mobility speed is big and electrical conductivity is high
The study hotspot of the ambits such as chemistry, physics, material.Graphene oxide edge has the oxygen-containing groups such as substantial amounts of carboxyl, hydroxyl
Group, it is sonicated to be easily achieved its in aqueous dispersed.Importantly, these functional groups can also and electrostatic
The Interaction of substituents of spinning polymer nanofiber surface, forms effectively bonding.Therefore, it is desirable to good with this water dispersible
Get well and environment-friendly graphene oxide realizes both answer by it with the interaction force on electrostatic spinning nano fiber surface
Close, eventually pass through step carbonization to obtain the carbon nano-fiber of graphene uniform cladding, then pass through simple solvent thermal reaction
It will be loaded in tungsten selenide nanometer sheet with excellent electrochemical activity on the carbon nano-fiber of graphene functionalized, while strengthening electricity
The electric conductivity and electro-chemical activity of spinning nano fibre material.
The content of the invention
Strengthen the electric conductivity and electricity of Static Spinning carbon fiber it is an object of the invention to provide a kind of cost-effective method
Chemism.
The present invention is using the Hyarogen-bonding between graphene oxide and its chlorinated polypropylene nitrile nanofibre, by simple
Self-assembling method combination high temperature cabonization technology, prepares the carbon nano-fiber of new graphene functionalized.
The present invention has uniformly uploaded tungsten selenide by easy solvent-thermal method on the carbon nano-fiber of graphene functionalized
Nanometer sheet, has finally constructed a kind of carbon nano-fiber composite material for having satisfactory electrical conductivity and electro-chemical activity concurrently.
The present invention is achieved through the following technical solutions:
A kind of tungsten selenide/graphene/carbon nano-fiber composite material, the tungsten selenide/graphene/carbon nanofiber is combined
Material is composited by tungsten selenide, graphene sheet layer, carbon nano-fiber, and the graphene sheet layer is wrapped in carbon nano-fiber
Surface, forms the graphene/carbon nano-fiber composite material of stable skin-core structure;The tungsten selenide is sheet, is uniformly distributed
In the surface of the graphene/carbon nano-fiber composite material.
A kind of preparation method of tungsten selenide/graphene/carbon nano-fiber composite material, step is as follows:
(1) under the conditions of stirring and oil bath, polyacrylonitrile spinning solution is prepared;
(2) polyacrylonitrile nanofiber is prepared using method of electrostatic spinning;
(3) by temperature programmed control, pre-oxidation treatment is carried out to the polyacrylonitrile nanofiber of step (2), surface work is obtained
Its chlorinated polypropylene nitrile nanofibre of energyization;
(4) graphite oxide is scattered in deionized water, ultrasound obtains the graphene oxide dispersion of stable dispersion;
(5) its chlorinated polypropylene nitrile nanofibre for obtaining step (3) is soaked in the graphene oxide point that step (4) is obtained
In dispersion liquid, stand so that graphene oxide carries out self assembly in oxidized polyacrylonitrile nanofiber surface;Cleaned after finishing
And dry, obtain graphene oxide/its chlorinated polypropylene nitrile nanofibre;
(6) graphene oxide for obtaining step (5)/its chlorinated polypropylene nitrile nanofibre carries out high temperature cabonization, obtains stone
Black alkene/carbon nano-fiber composite material;
(7) weigh selenium powder and prepare selenium solution, the graphene/carbon nanofiber obtained using solvent-thermal method in step (6)
Composite material surface grows tungsten selenide nanometer sheet, obtains tungsten selenide/graphene/carbon nano-fiber composite material.
The solvent of preparation polyacrylonitrile spinning solution described in step (1) of the present invention is DMF, is gathered
The concentration of acrylonitrile spinning solution is 0.05~0.15g/mL;The temperature of the oil bath is 70~80 DEG C.
In step (2) of the present invention, the technological parameter of described electrostatic spinning is:0.1~0.3mm/min of flow velocity, voltage is
15~20kV, it is 7~20cm to receive distance.
In step (3) of the present invention, described its heating rate of temperature programmed control is 1~2 DEG C/min, platform temperature is 250~
300 DEG C, 1~4h is kept, then Temperature fall.
In step (4) of the present invention, described graphite oxide is prepared by Hummers methods.
In step (4) of the present invention, the concentration of described graphene oxide dispersion is 0.2~4mg/mL.
In step (5) of the present invention, per 100mg, oxidation is poly- for 100~200mL for the consumption of described graphene oxide dispersion
Propylene nitrile nanofibre.Self assembling process carry out condition be:24-48h is stood under normal temperature.Cleaning agent uses anhydrous second
Alcohol.
In step (6) of the present invention, the Carbonization Conditions of described graphene oxide/its chlorinated polypropylene nitrile nanofibre are:With 5
~10 DEG C/min heating rate is raised to 600~1000 DEG C from room temperature, and keeps 2~4h, then Temperature fall.
In step (7) of the present invention, described selenium solution preparation condition is:Weigh a certain amount of selenium powder and add hydrazine hydrate solution
In, 1~2h is stirred in 80~90 DEG C of oil baths, the selenium solution for the amber transparent that molar concentration is 1~4mM is obtained.
In step (7) of the present invention, described solvent thermal reaction condition is:Weigh 10~50mg graphene/carbon nanofibers
10~20mL molar concentrations are added in 0.5~2mM sodium tungstate solution, to add 10~20mL selenium solution, in the lump finally
12~18h of reaction in 200~250 DEG C of baking ovens is transferred in reactor.
Tungsten selenide/graphene/carbon nano-fiber composite film material prepared by the present invention has excellent electric conductivity and electricity
Chemism, has huge application potential in high-performance energy storage and transition material field.
The present invention relates to four general principles:
(1) pre-oxidation treatment to polyacrylonitrile can further increase the hydrophily of polymer fiber, while in fiber table
Face introduces amino, and amino can form stable hydrogen bond with the oxy radical enriched on graphene oxide, be subsequent oxidation graphene
Self assembly lay the foundation;
(2) graphene oxide soaks essential on oxidation polyacrylonitrile fiber during self assembly, for a long time,
This is beneficial to infiltration of the graphene oxide dispersion in fibrous inside, and then makes its chlorinated polypropylene nitrile nanofibre and oxidation stone
Black alkene lamella forms uniform and close package structure by interaction of hydrogen bond;
(3) high temperature cabonization of graphene oxide/its chlorinated polypropylene nitrile nanofibre is handled oxidized polyacrylonitrile nanometer
Fiber is converted into carbon nano-fiber, while being the excellent graphene of electric conductivity by graphene oxide high temperature reduction;
(4) high porosity and bigger serface of electrospinning carbon nano-fiber are provided largely for the growth of tungsten selenide nanometer sheet
Nucleation site, greatly disperseed its homoepitaxial.
Beneficial effect
(1) preparation process of the present invention is simple, it is easy to operate, and polymer and reagent used is with low cost, environment-friendly.
(2) mentality of designing is ingenious, tungsten selenide/graphene/carbon nano-fiber composite material of preparation maintain Static Spinning without
Spin the good self-supporting and flexibility of cloth.
(3) there is tungsten selenide/graphene/carbon nano-fiber composite material prepared by excellent electric conductivity and electrochemistry to live
Property, had broad application prospects in new energy field.
Brief description of the drawings
Fig. 1 is the FESEM photos of (A) electrospinning carbon nano-fiber and (B) graphene/carbon nano-fiber composite film.
Fig. 2 is the TEM photos of graphene/carbon nano-fiber composite film.
Fig. 3 is the FESEM photos of tungsten selenide/graphene/carbon nano-fiber composite material.
Embodiment
With reference to instantiation, the present invention is expanded on further, it should be appreciated that these embodiments be merely to illustrate the present invention and
It is not used in limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, those skilled in the art
Various changes or modification can be made to the present invention, these equivalent form of values equally fall within what the application appended claims were limited
Scope.
Embodiment 1
The present embodiment comprises the following steps:
Weigh 0.8g polyacrylonitrile powders and add 10mL DMFs, the high-speed stirring under 80 DEG C of oil bath heatings
Mix the polyacrylonitrile clear solution that face light yellow complexion is obtained after 4h.Electrostatic spinning is carried out to above-mentioned polyacrylonitrile solution, spinning is set
Process conditions are:Flow velocity 0.25mm/min, voltage is 18kV, and it is 12cm to receive distance.The polyacrylonitrile nanofiber of preparation is most
Eventually to be deposited in the form of nano fibrous membrane on roller receiver, tunica fibrosa is taken off be placed in vacuum drying chamber dry 24~
28h is to remove residual solvent.The polyacrylonitrile fibre membrane of preparation, which is fixed on flat board, to be placed in carrying out in advance in temperature programmed control baking oven
Oxidation processes, rise to 250 DEG C from room temperature with 1 DEG C/min heating rate and keep 1h, room temperature is then down to naturally, after processing
Oxidation polyacrylonitrile fiber film color is changed into dark-brown.Above-mentioned oxidation polyacrylonitrile fiber film is cut into 2 × 2cm2Piece it is standby.
The present invention is characterized using field emission scanning electron microscope (FESEM), transmission electron microscope (TEM) to be obtained
Tungsten selenide/graphene/carbon nano-fiber composite material structure and morphology, its result is as follows:
(1) graphene/carbon nano-fiber composite material shows to be totally different from the microcosmic shape of Static Spinning carbon nano-fiber
Looks, the fiber surface of otherwise smooth becomes very fold, and increases along with a certain degree of diameter, also adheres to one on fiber
A little graphene films.Referring to Figure 1A and 1B.
(2) in the microstructure of graphene/carbon nano-fiber composite material, graphene sheet layer is tightly wrapped in carbon Nanowire
Dimension table face, forms a kind of skin-core structure of stabilization.This special structure do not destroy electrostatic spinning fiber film self-supporting and
On the basis of flexibility, the toughness and electric conductivity of Static Spinning carbon nano-fiber can be strengthened, referring to Fig. 2.
(3) tungsten selenide after solvent thermal reaction/graphene/carbon nano-fiber composite material intactly maintains porous
The tungsten selenide of sheet is all uniform-distribution with network structure, every fiber, referring to Fig. 3.
Embodiment 2
The present embodiment comprises the following steps:
The ultrasonically treated 2h of graphene oxide prepared by Hummers methods, obtains the graphene oxide that concentration is 1mg/mL
Dispersion liquid.Take the above-mentioned oxidation polyacrylonitrile fiber films of 80mg to add to stand at room temperature in 100mL graphene oxide dispersions
48h, then takes out tunica fibrosa and the graphene oxide dispersion on surface is rinsed out with absolute ethyl alcohol, is done in 70 DEG C of constant temperature ovens
Dry 48h.Above-mentioned graphene oxide/oxidized polyacrylonitrile nano fibrous membrane is placed in temperature programmed control tube furnace and carries out high temperature cabonization
Handle, Carbonization Conditions are:1000 DEG C are raised to from room temperature and keep 1h, Temperature fall with 10 DEG C/min heating rate.Finally
To graphene/carbon nano-fiber composite material.
Embodiment 3
The present embodiment comprises the following steps:
Weigh a certain amount of selenium powder to add in hydrazine hydrate solution, the heating stirring 1h in 85 DEG C of oil baths, obtaining molar concentration is
The selenium solution of 2mM amber transparent, room temperature cooling is stand-by.Weigh a certain amount of wolframic acid sodium crystal and add N,N-dimethylformamide
In, prepare the sodium tungstate solution that molar concentration is 1mM.Weigh the addition of 10mg graphene/carbons nano-fiber composite material above-mentioned
In the mixed solution of 10mL selenium solutions and 10mL sodium tungstates, it is transferred in the lump in the reactor of polytetrafluoroethyllining lining, is placed in 220
Taken out in DEG C constant temperature oven after reaction 12h, clean and tungsten selenide/graphene/carbon nano-fiber composite material is obtained after drying.
Claims (10)
1. a kind of tungsten selenide/graphene/carbon nano-fiber composite material, it is characterised in that the tungsten selenide/graphene/carbon is received
Rice fibrous composite is composited by tungsten selenide, graphene sheet layer, carbon nano-fiber, and the graphene sheet layer is wrapped in
Carbon nano-fiber surface, forms the graphene/carbon nano-fiber composite material of stable skin-core structure;The tungsten selenide is piece
Shape, is uniformly distributed in the surface of the graphene/carbon nano-fiber composite material.
2. a kind of preparation method of tungsten selenide/graphene/carbon nano-fiber composite material as claimed in claim 1, its feature
It is, step is as follows:
(1) under the conditions of stirring and oil bath, polyacrylonitrile spinning solution is prepared;
(2) polyacrylonitrile nanofiber is prepared using method of electrostatic spinning;
(3) by temperature programmed control, pre-oxidation treatment is carried out to the polyacrylonitrile nanofiber of step (2), obtains surface-functionalized
Its chlorinated polypropylene nitrile nanofibre;
(4) graphite oxide is scattered in deionized water, ultrasound obtains the graphene oxide dispersion of stable dispersion;
(5) its chlorinated polypropylene nitrile nanofibre for obtaining step (3) is soaked in the graphene oxide dispersion that step (4) is obtained
In, stand so that graphene oxide carries out self assembly in oxidized polyacrylonitrile nanofiber surface;Cleaned and dried after finishing
It is dry, obtain graphene oxide/its chlorinated polypropylene nitrile nanofibre;
(6) graphene oxide for obtaining step (5)/its chlorinated polypropylene nitrile nanofibre carries out high temperature cabonization, obtain graphene/
Carbon nano-fiber composite material;
(7) weigh selenium powder and prepare selenium solution, be combined using solvent-thermal method in the graphene/carbon nanofiber that step (6) is obtained
Material surface grows tungsten selenide nanometer sheet, obtains tungsten selenide/graphene/carbon nano-fiber composite material.
3. a kind of preparation method of tungsten selenide/graphene/carbon nano-fiber composite material as claimed in claim 2, its feature
It is, the solvent of the preparation polyacrylonitrile spinning solution described in step (1) is DMF, polyacrylonitrile spinning
The concentration of solution is 0.05~0.15g/mL;The temperature of the oil bath is 70~80 DEG C.
4. a kind of preparation method of tungsten selenide/graphene/carbon nano-fiber composite material as claimed in claim 2, its feature
It is, in step (2), the technological parameter of described electrostatic spinning is:0.1~0.3mm/min of flow velocity, voltage is 15~20kV,
It is 7~20cm to receive distance.
5. a kind of preparation method of tungsten selenide/graphene/carbon nano-fiber composite material as claimed in claim 2, its feature
It is, in step (3), described its heating rate of temperature programmed control is 1~2 DEG C/min, and platform temperature is 250~300 DEG C, is kept
1~4h, then Temperature fall.
6. a kind of preparation method of tungsten selenide/graphene/carbon nano-fiber composite material as claimed in claim 2, its feature
It is, in step (4), the concentration of described graphene oxide dispersion is 0.2~4mg/mL.
7. a kind of preparation method of tungsten selenide/graphene/carbon nano-fiber composite material as claimed in claim 2, its feature
It is, in step (5), the consumption of described graphene oxide dispersion is received for 100~200mL per 100mg oxidized polyacrylonitriles
Rice fiber.Self assembling process carry out condition be:24-48h is stood under normal temperature.Cleaning agent uses absolute ethyl alcohol.
8. a kind of preparation method of tungsten selenide/graphene/carbon nano-fiber composite material as claimed in claim 2, its feature
It is, in step (6), the Carbonization Conditions of described graphene oxide/its chlorinated polypropylene nitrile nanofibre are:With 5~10 DEG C/
Min heating rate is raised to 600~1000 DEG C from room temperature, and keeps 2~4h, then Temperature fall.
9. a kind of preparation method of tungsten selenide/graphene/carbon nano-fiber composite material as claimed in claim 2, its feature
It is, in step (7), described selenium solution preparation condition is:Weigh a certain amount of selenium powder to add in hydrazine hydrate solution, in 80~90
1~2h is stirred in DEG C oil bath, the selenium solution for the amber transparent that molar concentration is 1~4mM is obtained.
10. a kind of preparation method of tungsten selenide/graphene/carbon nano-fiber composite material as claimed in claim 2, its feature
It is, in step (7), described solvent thermal reaction condition is:Weigh 10~50mg graphene/carbons nanofiber add 10~
20mL molar concentrations are finally transferred to anti-in the lump in 0.5~2mM sodium tungstate solution, to add 10~20mL selenium solution
Answer and react 12~18h in kettle in 200~250 DEG C of baking ovens.
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CN107999094A (en) * | 2017-12-29 | 2018-05-08 | 郑州大学 | A kind of metal phase tungsten selenide nanometer sheet/carbon nano-tube hybridization structure elctro-catalyst and preparation method thereof |
CN107999093A (en) * | 2017-12-29 | 2018-05-08 | 郑州大学 | A kind of cobalt doped two dimension tungsten selenide elctro-catalyst and preparation method thereof |
CN112808228A (en) * | 2020-12-30 | 2021-05-18 | 华北电力大学(保定) | WSe2/halloysite nanotube demercuration adsorbent and preparation method and application thereof |
CN114142027A (en) * | 2021-12-09 | 2022-03-04 | 广东工业大学 | Sodium-ion battery negative electrode material, preparation method thereof and sodium-ion battery negative electrode |
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CN106025210A (en) * | 2016-06-06 | 2016-10-12 | 复旦大学 | Molybdenum selenide/graphene/carbon nanotube composite material and preparation method thereof |
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CN105322146A (en) * | 2015-09-28 | 2016-02-10 | 复旦大学 | Molybdenum selenide/carbon nanofiber/graphene composite material and preparation method thereof |
CN105618087A (en) * | 2016-01-03 | 2016-06-01 | 复旦大学 | Transition metal dithio compound nanometer sheet layer compound and preparation method thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107999094A (en) * | 2017-12-29 | 2018-05-08 | 郑州大学 | A kind of metal phase tungsten selenide nanometer sheet/carbon nano-tube hybridization structure elctro-catalyst and preparation method thereof |
CN107999093A (en) * | 2017-12-29 | 2018-05-08 | 郑州大学 | A kind of cobalt doped two dimension tungsten selenide elctro-catalyst and preparation method thereof |
CN112808228A (en) * | 2020-12-30 | 2021-05-18 | 华北电力大学(保定) | WSe2/halloysite nanotube demercuration adsorbent and preparation method and application thereof |
CN114142027A (en) * | 2021-12-09 | 2022-03-04 | 广东工业大学 | Sodium-ion battery negative electrode material, preparation method thereof and sodium-ion battery negative electrode |
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