CN108751174A - A kind of continuous macroscopical graphene nanobelt fiber and preparation method thereof - Google Patents
A kind of continuous macroscopical graphene nanobelt fiber and preparation method thereof Download PDFInfo
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- C01B2204/32—Size or surface area
Abstract
The invention discloses a kind of continuous macroscopical graphene nanobelt fibers and preparation method thereof.The present invention is using high water content reaction solution as raw material, and by chemical vapour deposition technique, interference and dissection are assembled to the growth of carbon nanotube at high temperature using hydrone, prepares continuous macroscopical continuous graphite alkene nanobelt fiber.The critical process of preparation method of the present invention is that the mass fraction of deionized water in reaction solution controls within the scope of 15-40 %, preferably 20-35 %.Graphene nanobelt fiber uniformly continuous, purity height, the quality height prepared using the present invention.The fiber also has lightweight, high strength & high electric-conduction energy and excellent flexibility, and a kind of novel macroscopic fibres material is provided for development flexible wearable electronic device.Meanwhile the preparation method is a step dry spinning, preparation process is simple, is easy regulation and control, can continuously prepare, it can be achieved that large-scale production.
Description
Technical field
The present invention relates to a kind of continuous macroscopical graphene nanobelt fibers and preparation method thereof；Belong to carbon nanomaterial and
Its preparing technical field.
Background technology
Graphene is since 2004 are found, with its excellent mechanics（1 TPa of theoretical strength）, electricity（It is theoretical
Electron mobility is 106 cm2•V-1•s-1）, calorifics（5000 W m of theoretical thermal conductivity-1•K-1）, optics（Single layer visible absorption
Only 2.3%）Etc. performances receive people concern.Graphene nanobelt is finger widths in nanoscale and has the narrow of certain draw ratio
Strip grapheme material.Graphene nanobelt not only has all structural and functional characteristics of graphene, due also to electron-transport
In the wide to being restricted of nanoscale, unique electron transport property is shown.Its electrical properties with strip width, the number of plies and
Marginal texture is different and semiconduction or metallicity is presented, and is expected to become substitution Si semiconductors and Ni metal material, in electronic circuit
Devices field has important application potentiality.In addition, the unique two-dimentional narrow strip nanostructure of graphene nanobelt not only maintains
The properties such as the high-specific surface area of graphene, highly conductive, high-flexibility, and there is more edge active points and more affine table
Face structure can be applied to the fields such as high-performance energy storage, energy conversion, sensing, high-strength composite material.Therefore, graphene in recent years
Nanobelt receives the extensive concern of domestic and international researcher.There are many preparation sides that method reports graphene nanobelt
Method mainly by micro Process means cutting grapheme nanometer sheet, or passes through the drawing of the methods of chemical oxidation or plasmon etching
Carbon nanotube is opened in chain type cutting.But the graphene nanobelt prepared by the above method is all dispersion free state.It prepares
Continuous macroscopic view graphene nanobelt fiber is also not implemented.
Invention content
The object of the present invention is to provide a kind of continuous macroscopical graphene nanobelt fibers and preparation method thereof, solve existing
The deficiency of graphene nanobelt material preparation technology.
Technical solution：
A kind of continuous macroscopical graphene nanobelt fiber and preparation method thereof, mainly comprises the following steps：
(1) using liquid carbon compound, ferrocene, thiophene and deionized water as raw material, first by carbon compound, two cyclopentadienyls
Iron, thiophene are that 50~300: 1~5: 1 weighing mixes according to mass ratio, deionized water are then added, ultrasonic mixing is uniform, wherein
The mass fraction of water controls within the scope of 15-40%, preferably 20-35%, by reaction solution under 200-2000 sccm hydrogen carrier gas streams
It is injected with 5-20 mL/h fluid injection rates in 700-1500 DEG C of pipe reaction stove, growth assembling forms continuous graphene nano
Band aggregation；
(2) graphene nanobelt aggregation is pulled out from reacting furnace tail end, is shunk through liquid phase densification, and speed is spun with 2-20m/min
It is wrapped in and is spun on axis, obtain continuous macroscopical graphene nanobelt fiber.
A kind of preparation method of continuous graphene nanobelt fiber according to the present invention, it is characterised in that：Reaction solution
In the water containing high-content, the mass fraction of water is 15-40%, preferably 20-35%；It is described under the premise of high water reaction solution
Carbon source be ethyl alcohol, acetone or both mixed liquor, preferred alcohol is carbon source；Ferrocene mass fraction is 0.5-5%；Fluid injection speed
Rate is 5-20 mL/h, preferably 6-12 mL/h；Reaction temperature is 700-1500 DEG C, preferably 1100-1200 DEG C；Carrier gas is hydrogen
Or the gaseous mixture of 1-99% hydrogen and argon gas, preferably carrier gas is hydrogen；Carrier gas flux is 200-2000 sccm, preferably 800-1400
sccm；Fiber spins speed 2-20 m/min, preferably 4-12 m/min.
The continuous macroscopical graphene nanobelt fiber prepared using the present invention, it is uniform by high-purity, high quality, structure
Graphene nanobelt is constituted.
The continuous macroscopical graphene nanobelt fiber prepared using the present invention：It is made of graphene nanobelt it is macro
See continuous fiber.It is directly prepared by chemical vapour deposition technique.Its continuous length of macroscopic view is from Centimeter Level to myriametre grade.
10-200 μm of fibre diameter.It has solid, hollow, stratiform or three-dimensional net structure.Constitute its graphene nanobelt number of plies
Between 1-10 layers.Its graphene nano bandwidth is constituted between 2-100 nm, draw ratio is more than 100.Constitute its stone
It can be sawtooth pattern or armchair graphene nanobelt that black alkene nanobelt, which has neat marginal texture, marginal texture,
It can be the mixing of the two.
The continuous macroscopical graphene nanobelt fiber prepared using the present invention, the number of plies of graphene nanobelt therein,
Width and marginal texture can by changing carbon source kind, carbon source and thiophene, ferrocene and deionized water ratio, fluid injection rate with
Reaction temperature is regulated and controled.
The preparation method of continuous macroscopical graphene nanobelt fiber provided by the invention, main technical principle and embodiment party
Case is that the water of high-content is introduced in reaction raw materials, is made at high temperature to the interference and cutting of carbon nano tube growth assembling using water
With graphene nanobelt is generated, and then it is assembled into continuous graphene nanobelt aggregation, continuous macroscopical stone is obtained through spinning
Black alkene nanobelt fiber.
Graphene nanobelt fiber uniformly continuous, purity height, the quality height prepared using the present invention.The fiber also has light
Matter, high strength & high electric-conduction energy and excellent flexibility provide a kind of novel macro for development flexible wearable electronic device
See fibrous material.Meanwhile the preparation method is one-step method, belongs to dry-spinning process, preparation process is simple, is easy regulation and control, energy
Enough continuous preparations are, it can be achieved that large-scale production.
Description of the drawings
Fig. 1：The continuous macroscopical graphene nanobelt fiber prepared using the present invention.
Fig. 2：Using (a) low power and (b) high power stereoscan photograph of graphene nanobelt fiber prepared by the present invention.
Fig. 3：Using (a) low power and (b) high power transmission electron microscope photo of graphene nanobelt fiber prepared by the present invention.
Fig. 4：Use the stone prepared under the conditions of different mass area ratios (mass fraction is 0,5,10,15 and 25%) of the invention
Black alkene nanobelt fiber Raman spectrum.
Fig. 5：Use the stone prepared under the conditions of different mass area ratios (mass fraction is 0,5,10,15 and 25%) of the invention
Black alkene nanobelt tensile strength of fiber-strain curve.
Specific implementation mode
Embodiment 1
Ethyl alcohol, ferrocene, thiophene are weighed for 150: 3: 1 according to mass ratio and mixed, deionized water, 30 min of ultrasound are then added
It is uniformly mixed, obtains homogeneous reaction liquid, wherein mass fraction of the water in reaction solution is 25%.With micro-injection pump by reaction solution
It is injected into 8 mL/h rates in the pipe reaction stove of 1000 sccm hydrogen carrier gas streams, reaction zone temperature is 1150 DEG C, graphite
Alkene nanobelt grows assembling in reaction zone and forms filament shape aggregation, and reacting furnace tail end is moved under hydrogen stream drive, will
Graphene nanobelt aggregation is pulled out out of reacting furnace, is shunk through water densification, and spinning speed with 4 m/min is wrapped on spinning axis, is made
Continuous macroscopic view graphene nanobelt fiber.
Through continuous macroscopic view graphene nanobelt fiber made from above step and condition, up to hundred meter levels even km
Grade, can parse and wind（Fig. 1）.Fiber thickness is uniform, and diameter is about 100 μm, and internal graphene nanometer sheet forms pencil, is in
Three-dimensional net structure（Fig. 2）.Graphene nano strip length is at tens microns or more, and width 15-40 nm are bilayer, lace
Edge is neat（Fig. 3）.There is graphene nanobelt high crystallinity, Raman spectrum to show the peaks D and the peaks G integral area ratio in fiber
It is 0.70（Fig. 4）.The graphene nanobelt fiber of preparation has lightweight nature, line density only 0.23 tex (mg/m), volume density
Only 0.03 g/cm3.The graphene nanobelt fiber of preparation has high conductivity, and conductivity is up to 104S/m magnitudes.It prepares
It is 150-350 MPa, elongation at break 15-25% that graphene nanobelt fiber, which has high intensity, tensile strength,（Fig. 5）.
The graphene nanobelt fiber of preparation also has excellent flexibility, can arbitrarily be bent, knots, weaves and arrange.
Embodiment 2
The content for changing deionized water is 15%, and other experimentations and condition are the same as embodiment 1.
Specially：Ethyl alcohol, ferrocene, thiophene are weighed for 150: 3: 1 according to mass ratio and mixed, deionization is then added
Water, 30 min of ultrasound are uniformly mixed, and obtain homogeneous reaction liquid, and wherein mass fraction of the water in reaction solution is 15%.With micro note
It penetrates pump to be injected into reaction solution in the pipe reaction stove of 1000 sccm hydrogen carrier gas streams with 8 mL/h rates, reaction zone temperature is
1150 DEG C, graphene nanobelt grows assembling in reaction zone and forms filament shape aggregation, is moved under hydrogen stream drive anti-
Stove tail end is answered, graphene nanobelt aggregation is pulled out out of reacting furnace, is shunk through water densification, spinning speed with 4 m/min is wrapped in
It spins on axis, continuous macroscopical graphene nanobelt fiber is made.
Through continuous macroscopic view graphene nanobelt fiber, uniformly continuous, 80 μ of fibre diameter made from above step and condition
M, graphene nanobelt constitute pencil along fiber axial orientation.The product at the peaks D and the peaks G in graphene nanobelt fiber Raman spectrum
It is 0.61 to divide area ratio.Graphene nanobelt fiber linear density is 0.23 tex (mg/m), and volume density is 0.046 g/cm3。
Graphene nanobelt fiber conductivity is up to 104S/m magnitudes, tensile strength 250-450 MPa, elongation at break 10-25%, together
When with excellent flexibility.
Embodiment 3
The content for changing deionized water is 10%, and other experimentations and condition are the same as embodiment 1.
Specially：Ethyl alcohol, ferrocene, thiophene are weighed for 150: 3: 1 according to mass ratio and mixed, deionization is then added
Water, 30 min of ultrasound are uniformly mixed, and obtain homogeneous reaction liquid, and wherein mass fraction of the water in reaction solution is 10%.With micro note
It penetrates pump to be injected into reaction solution in the pipe reaction stove of 1000 sccm hydrogen carrier gas streams with 8 mL/h rates, reaction zone temperature is
1150 DEG C, reaction solution cracks growth assembling in reaction zone and forms cylindric aggregation, and reaction is moved under hydrogen stream drive
Stove tail end pulls out aggregation out of reacting furnace, is shunk through water densification, and spinning speed with 4 m/min is wrapped on spinning axis, is made continuous
Fiber product.
Through product made from above step and condition be continuous carbon nano-tube fibre rather than graphene nanobelt fiber,
Show under low wash water reaction condition（10%）Graphene nanobelt fiber cannot be prepared.Continuous carbon nano-tube fibre obtained is straight
100 μm of diameter, carbon nanotube constitute pencil along fiber axial orientation.The integral at the peaks D and the peaks G in carbon nano-tube fibre Raman spectrum
Area ratio is 0.60.Carbon nanotube fiber wire density is 0.42 tex (mg/m), and volume density is 0.054 g/cm3.Carbon nanometer
Pipe fiber conductivity is 103S/m magnitudes, tensile strength 200-300 MPa, elongation at break 10-25%, while having excellent
Flexibility.
Embodiment 4
The content for changing deionized water is 5%, and other experimentations and condition are the same as embodiment 1.
Specially：Ethyl alcohol, ferrocene, thiophene are weighed for 150: 3: 1 according to mass ratio and mixed, deionization is then added
Water, 30 min of ultrasound are uniformly mixed, and obtain homogeneous reaction liquid, and wherein mass fraction of the water in reaction solution is 5%.With micro note
It penetrates pump to be injected into reaction solution in the pipe reaction stove of 1000 sccm hydrogen carrier gas streams with 8 mL/h rates, reaction zone temperature is
1150 DEG C, reaction solution cracks growth assembling in reaction zone and forms cylindric aggregation, and reaction is moved under hydrogen stream drive
Stove tail end pulls out aggregation out of reacting furnace, is shunk through water densification, and spinning speed with 4 m/min is wrapped on spinning axis, is made continuous
Fiber product.
It is continuous carbon nano-tube fibre through product made from above step and condition, further demonstrates that low wash water reacts item
Under part（10%）Graphene nanobelt fiber cannot be prepared.Continuous carbon nano-tube fibre obtained, 120 μm of fibre diameter, carbon is received
Mitron constitutes pencil along fiber axial orientation.The peaks D and the integral area ratio at the peaks G are in carbon nano-tube fibre Raman spectrum
0.57.Carbon nanotube fiber wire density is 0.49 tex (mg/m), and volume density is 0.043 g/cm3.Carbon nano-tube fibre is conductive
Rate is 103S/m magnitudes, tensile strength 200-250 MPa, elongation at break 10-15%, while there is excellent flexibility.
Embodiment 5
Deionized water is not added in reaction solution, other experimentations and condition are the same as embodiment 1.
Specially：Ethyl alcohol, ferrocene, thiophene are weighed for 150: 3: 1 according to mass ratio and mixed, ultrasound 30 min mixing is equal
It is even, obtain homogeneous reaction liquid.Reaction solution is injected into 1000 sccm hydrogen carrier gas streams with 8 mL/h rates with micro-injection pump
In pipe reaction stove, reaction zone temperature is 1150 DEG C, and reaction solution cracks growth assembling in reaction zone and forms cylindric aggregation
Body moves to reacting furnace tail end under hydrogen stream drive, aggregation is pulled out out of reacting furnace, shunk through water densification, with 4 m/
Min spins speed and is wrapped on spinning axis, and continuous fiber product is made.
It is continuous carbon nano-tube fibre through product made from above step and condition, further demonstrates that low wash water reacts item
Under part（10%）Graphene nanobelt fiber cannot be prepared.Continuous carbon nano-tube fibre obtained, 120 μm of fibre diameter, carbon is received
Mitron constitutes pencil along fiber axial orientation.The peaks D and the integral area ratio at the peaks G are in carbon nano-tube fibre Raman spectrum
0.51.Carbon nanotube fiber wire density is 0.36 tex (mg/m), and volume density is 0.032 g/cm3.Carbon nano-tube fibre is conductive
Rate is 103S/m magnitudes, tensile strength 100-150 MPa, elongation at break 10-15%, while there is excellent flexibility.
Embodiment 6
The content for changing deionized water is 35%, and other experimentations and condition are the same as embodiment 1.
Specially：Ethyl alcohol, ferrocene, thiophene are weighed for 150: 3: 1 according to mass ratio and mixed, deionization is then added
Water, 30 min of ultrasound are uniformly mixed, and obtain homogeneous reaction liquid, and wherein mass fraction of the water in reaction solution is 35%.With micro note
It penetrates pump to be injected into reaction solution in the pipe reaction stove of 1000 sccm hydrogen carrier gas streams with 8 mL/h rates, reaction zone temperature is
1150 DEG C, graphene nanobelt grows assembling in reaction zone and forms filament shape aggregation, is moved under hydrogen stream drive anti-
Stove tail end is answered, graphene nanobelt aggregation is pulled out out of reacting furnace, is shunk through water densification, spinning speed with 4 m/min is wrapped in
It spins on axis, continuous macroscopical graphene nanobelt fiber is made.
Through continuous macroscopic view graphene nanobelt fiber, uniformly continuous, 80 μ of fibre diameter made from above step and condition
M, graphene nanobelt constitute pencil along fiber axial orientation.Graphene nanobelt fiber linear density is 0.20 tex (mg/
M), volume density is 0.040 g/cm3.Graphene nanobelt fiber conductivity is up to 104S/m magnitudes, tensile strength 100-150
MPa, elongation at break 10-25%, while there is excellent flexibility.
Embodiment 7
The content for changing deionized water is 50%, and other experimentations and condition are the same as embodiment 1.
Specially：Ethyl alcohol, ferrocene, thiophene are weighed for 150: 3: 1 according to mass ratio and mixed, deionization is then added
The mass fraction of water, wherein water in reaction solution is 50%, and ultrasound 120 min mixing, be uniformly mixed liquid.But stop ultrasound
After 10 min, occur flocculating setting in mixed liquor, after ultrasound and stopping are ultrasonic repeatedly, flocculating setting, therefore water content occurs
Uniform reaction solution cannot be obtained when being 50%, therefore does not carry out subsequent experimental.
Embodiment 8
Ethyl alcohol, ferrocene, thiophene are weighed for 300: 5: 1 according to mass ratio and mixed, deionized water, 30 min of ultrasound are then added
It is uniformly mixed, obtains homogeneous reaction liquid, wherein mass fraction of the water in reaction solution is 25%.With micro-injection pump by reaction solution
It is injected into 20 mL/h rates in the pipe reaction stove of 2000 sccm hydrogen carrier gas streams, reaction zone temperature is 1500 DEG C, graphite
Alkene nanobelt grows assembling in reaction zone and forms filament shape aggregation, and reacting furnace tail end is moved under hydrogen stream drive, will
Graphene nanobelt aggregation is pulled out out of reacting furnace, is shunk through water densification, and spinning speed with 20 m/min is wrapped on spinning axis, is made
Continuous macroscopic view graphene nanobelt fiber.The graphene nanobelt fiber prepared through above step is continuous, even thickness, fiber
A diameter of 200 μm, fiber can be parsed and be wound.
Embodiment 9
Ethyl alcohol, ferrocene, thiophene are weighed for 50: 1: 1 according to mass ratio and mixed, deionized water, 30 min of ultrasound are then added
It is uniformly mixed, obtains homogeneous reaction liquid, wherein mass fraction of the water in reaction solution is 25%.With micro-injection pump by reaction solution
It is injected into 5 mL/h rates in the pipe reaction stove of 200 sccm hydrogen carrier gas streams, reaction zone temperature is 700 DEG C, graphene
Nanobelt grows assembling in reaction zone and forms filament shape aggregation, reacting furnace tail end is moved under hydrogen stream drive, by stone
Black alkene nanobelt aggregation is pulled out out of reacting furnace, is shunk through water densification and is twisted with the rotating speed of 50 rpm/min, with 2
M/min spins speed and is wrapped on spinning axis, and continuous macroscopical graphene nanobelt fiber is made.The graphene prepared through above step is received
Rice band fiber is continuous, and even thickness, fibre diameter is 10 μm, and fiber can be parsed and be wound.
Embodiment 10
Ethyl alcohol, ferrocene, thiophene are weighed for 150: 3: 1 according to mass ratio and mixed, deionized water, 30 min of ultrasound are then added
It is uniformly mixed, obtains homogeneous reaction liquid, wherein mass fraction of the water in reaction solution is 25%.With micro-injection pump by reaction solution
It is injected into 12 mL/h rates in the pipe reaction stove of 1400 sccm hydrogen carrier gas streams, reaction zone temperature is 1200 DEG C, graphite
Alkene nanobelt grows assembling in reaction zone and forms filament shape aggregation, and reacting furnace tail end is moved under hydrogen stream drive, will
Graphene nanobelt aggregation is pulled out out of reacting furnace, is shunk through water densification, and spinning speed with 10 m/min is wrapped on spinning axis, is made
Continuous macroscopic view graphene nanobelt fiber.The graphene nanobelt fiber that is prepared through above step is continuous, even thickness, fiber
It can parse and wind.
Embodiment 11
Ethyl alcohol, ferrocene, thiophene are weighed for 150: 3: 1 according to mass ratio and mixed, deionized water, 30 min of ultrasound are then added
It is uniformly mixed, obtains homogeneous reaction liquid, wherein mass fraction of the water in reaction solution is 25%.With micro-injection pump by reaction solution
It is injected into 6 mL/h rates in the pipe reaction stove of 800 sccm hydrogen carrier gas streams, reaction zone temperature is 1100 DEG C, graphene
Nanobelt grows assembling in reaction zone and forms filament shape aggregation, reacting furnace tail end is moved under hydrogen stream drive, by stone
Black alkene nanobelt aggregation is pulled out out of reacting furnace, is shunk through water densification, and spinning speed with 4 m/min is wrapped on spinning axis, the company of being made
Continuous macroscopical graphene nanobelt fiber.The graphene nanobelt fiber continuity prepared through above step is slightly poorer to other
Part, fiber can be parsed and be wound.
Embodiment 12
Acetone, ferrocene, thiophene are weighed for 150: 3: 1 according to mass ratio and mixed, deionized water, 30 min of ultrasound are then added
It is uniformly mixed, obtains homogeneous reaction liquid, wherein mass fraction of the water in reaction solution is 25%.With micro-injection pump by reaction solution
It is injected into 8 mL/h rates in the pipe reaction stove of 90% hydrogen and 10% argon gas mixed carrier gas stream, flow rate of carrier gas 1000
Sccm, reaction zone temperature are 1150 DEG C, and graphene nanobelt grows assembling in reaction zone and forms filament shape aggregation, is carrying
Air-flow moves to reacting furnace tail end under driving, and graphene nanobelt aggregation is pulled out out of reacting furnace, is shunk through water densification, with
4 m/min spin speed and are wrapped on spinning axis, and continuous macroscopical graphene nanobelt fiber is made.The graphene prepared through above step
Nanobelt fiber continuity can be parsed and be wound slightly poorer to other conditions, fiber.
Embodiment 13
Ethyl alcohol, acetone, ferrocene, thiophene are weighed for 75: 75: 3: 1 according to mass ratio and mixed, deionized water is then added, is surpassed
30 min of sound is uniformly mixed, and obtains homogeneous reaction liquid, and wherein mass fraction of the water in reaction solution is 25%.Use micro-injection pump
Reaction solution is injected into 8 mL/h rates in the pipe reaction stove of 10% hydrogen and 90% argon gas mixed carrier gas stream, flow rate of carrier gas is
1000 sccm, reaction zone temperature are 1150 DEG C, and graphene nanobelt grows assembling in reaction zone and forms filament shape aggregation,
Reacting furnace tail end is moved under hydrogen stream drive, graphene nanobelt aggregation is pulled out out of reacting furnace, is received through water densification
Contracting is spun speed with 4 m/min and is wrapped on spinning axis, continuous macroscopical graphene nanobelt fiber is made.It is prepared through above step
Graphene nanobelt fiber continuity can be parsed and be wound slightly poorer to other conditions, fiber.
The present invention has the following technical effects：
1, second alcohol and water is used to prepare graphene nanobelt fiber for raw material, raw material extensively, it is cheap, be easy to get；
2, graphene nanobelt fiber is prepared by introducing high-content water in reaction solution, technical solution is simple, is easy to control；
3, using process for preparing graphenes by chemical vapour deposition nanobelt fiber, one-step method is directly prepared, and process is simple, can continuously be made
It is standby, there is apparent large-scale production advantage；
4, the graphene nanobelt fiber macroscopic view prepared is continuous, uniform, can parse and wind；
5, the graphene nanobelt fiber prepared has high purity and quality；
6, the graphene nanobelt fiber prepared has high porosity and ultralight characteristic；
7, the graphene nanobelt fiber prepared has high intensity and electric conductivity；
8, the graphene fiber prepared has excellent flexibility and stitchability.
Claims (9)
1. a kind of continuous macroscopical graphene nanobelt fiber and preparation method thereof, it is characterised in that it is the reaction with high water
Liquid is raw material, is directly prepared by chemical vapour deposition technique, is mainly comprised the following steps：
（1）Using liquid carbon compound, ferrocene, thiophene and deionized water as raw material, first by carbon compound, two cyclopentadienyls
Iron, thiophene are that 50~300: 1~5: 1 weighing mixes according to mass ratio, deionized water are then added, ultrasonic mixing is uniform, wherein
Deionized mass fraction control is within the scope of 15-40%, preferably 20-35%, by reaction solution in 200-2000 sccm hydrogen carrier gas
It flows down in the pipe reaction stove for injecting 700-1500 DEG C with 5-20 mL/h fluid injection rates, growth assembling forms continuous graphene
Nanobelt aggregation；
（2）Graphene nanobelt aggregation is pulled out from reacting furnace tail end, is shunk through liquid phase densification, and speed is spun with 2-20 m/min
It is wrapped in and is spun on axis, obtain continuous macroscopical graphene nanobelt fiber.
2. a kind of preparation method of continuous macroscopical graphene nanobelt fiber according to claim 1, it is characterised in that anti-
Answer the water containing high-content in liquid, the mass fraction 15-40% of water, preferably 20-35%；Under the premise of high water reaction solution, institute
The carbon source stated is the mixed liquor of ethyl alcohol, acetone or both, and preferred alcohol is carbon source；Ferrocene mass fraction is 0.5-5%；Fluid injection
Rate is 5-20 mL/h, preferably 6-12 mL/h；Reaction temperature is 700-1500 DEG C, preferably 1100-1200 DEG C；Carrier gas is hydrogen
The gaseous mixture of gas or 1-99% hydrogen and argon gas, preferably carrier gas are hydrogen；Carrier gas flux is 200-2000 sccm, preferably 800-
1400 sccm；Fiber spins speed 2-20 m/min, preferably 4-12 m/min.
3. a kind of continuous macroscopical graphene nanobelt fiber, it is characterised in that it is directly prepared by chemical vapour deposition technique
's.
4. a kind of continuous macroscopical graphene nanobelt fiber according to claim 3, it is characterised in that it is by graphite
Macroscopical continuous fiber that alkene nanobelt is constituted, length is from Centimeter Level to myriametre grade.
5. a kind of continuous macroscopical graphene nanobelt fiber according to claim 3, it is characterised in that fibre diameter is
10-200μm。
6. a kind of continuous macroscopical graphene nanobelt fiber according to claim 3, it is characterised in that it have it is solid,
Hollow, stratiform or three-dimensional net structure.
7. a kind of continuous macroscopical graphene nanobelt fiber according to claim 3, it is characterised in that constitute its stone
The black alkene nanobelt number of plies is between 1-10 layers.
8. a kind of continuous macroscopical graphene nanobelt fiber according to claim 3, it is characterised in that constitute its stone
For black alkene nanometer bandwidth between 2-100 nm, draw ratio is more than 100.
9. a kind of continuous macroscopical graphene nanobelt fiber according to claim 3, it is characterised in that constitute its stone
It can be sawtooth pattern or armchair graphene nanobelt that black alkene nanobelt, which has neat marginal texture, marginal texture,
It can be the mixing of the two.
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