CN106629684A - Preparation method of composite graphene/carbon nanotube aerogel and composite graphene/carbon nanotube aerogel - Google Patents
Preparation method of composite graphene/carbon nanotube aerogel and composite graphene/carbon nanotube aerogel Download PDFInfo
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
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- C—CHEMISTRY; METALLURGY
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
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Abstract
The invention provides a preparation method of composite graphene/carbon nanotube aerogel. Carbon nanotubes are oxidized by using an oxidizing agent, oxidized graphene, the oxidized carbon nanotubes and a reducing agent are mixed, then reaction is performed to obtain hydrogel, the hydrogel is mixed with a reinforcement solution, and then the obtained reactant is dried to obtain the composite graphene/carbon nanotube aerogel. The mutual effect of graphene sheets is strengthened by utilizing the synergistic effect between a one-dimensional material and a two-dimensional material between the carbon nanotubes and the graphene and the large long-diameter ratio of the carbon nanotubes, and the mechanical properties of the aerogel can be remarkably improved.
Description
Technical field
The present invention relates to three-dimensional structure material-aeroge field, more particularly to a kind of graphene/carbon nano-tube is combined gas
The preparation method and graphene/carbon nano-tube composite aerogel of gel.
Background technology
Graphene/carbon nano-tube aeroge has excellent physical and chemical performance, such as higher electric conductivity, excellent mechanical property
Energy, high specific surface area and good chemical stability etc., in catalyst carrier, high molecule nano composite material, energy conversion
It is widely used with the field such as the flexible base material of memory device.
However, just because of the compression performance of itself drops can in the abundant loose structure of graphene/carbon nano-tube aeroge
It is low, reduce its mechanical performance.
The content of the invention
It is an object of the invention to provide the preparation method and graphene/carbon of graphene/carbon nano-tube composite aerogel are received
Mitron composite aerogel, it is intended to which the graphene/carbon nano-tube aeroge mechanical performance solved due to providing in prior art is low
Defect.
On the one hand, the invention provides a kind of preparation method of graphene/carbon nano-tube composite aerogel, methods described bag
Include following step：
By CNT with oxidizing；
To react after CNT after graphene oxide, oxidation and reducing agent mixing, obtain hydrogel；And
The reactant obtained after the hydrogel is mixed with enhancing solution obtains after drying the graphene/carbon nanometer
Pipe composite aerogel, the enhancing solution is at least one in ethanol, methyl alcohol and ammoniacal liquor.
In certain embodiments, by CNT, with oxidizing step, the oxidant quality is described
5～200 times of carbon nanotube mass, oxidizing temperature is 30～100 DEG C.
In certain embodiments, by CNT with oxidizing step, the diameter of the CNT
For 20～100nm, length is 10～50 μm.
In certain embodiments, by CNT with oxidizing step, the oxidant be potassium permanganate,
At least one in hydrogen peroxide, the concentrated sulfuric acid and red fuming nitric acid (RFNA).
In certain embodiments, the CNT and reducing agent after by graphene oxide, oxidation reacts after mixing, and obtains
In the step of hydrogel, the mass ratio of the graphene oxide and the CNT is 1：0.1～1.
In certain embodiments, the CNT and reducing agent after by graphene oxide, oxidation reacts after mixing, and obtains
In the step of hydrogel, the reducing agent is 0.5～1 with the mass ratio of the graphene oxide：10.
In certain embodiments, the CNT and reducing agent after by graphene oxide, oxidation reacts after mixing, and obtains
In the step of hydrogel, the reducing agent be hydrazine hydrate, ascorbic acid, ammonium sulfide, vulcanized sodium, ethylenediamine and citric acid in extremely
Few one kind.
In certain embodiments, the CNT and reducing agent after by graphene oxide, oxidation reacts after mixing, and obtains
In the step of hydrogel, the temperature of the reaction is 50～150 DEG C, and the time of the reaction is 1h～6h.
In certain embodiments, the CNT and reducing agent after by graphene oxide, oxidation reacts after mixing, and obtains
After the step of hydrogel, by the hydrogel with strengthen solution mix the step of before, also include by the hydrogel by washing
The step of to remove unnecessary hydrogel.
In certain embodiments, the reactant for obtaining after the hydrogel is mixed with enhancing solution is obtained after drying
In the step of graphene/carbon nano-tube composite aerogel, the mass fraction concentration for strengthening solution is 5%～40%.
In certain embodiments, the reactant for obtaining after the hydrogel is mixed with enhancing solution is obtained after drying
In the step of graphene/carbon nano-tube composite aerogel, the reaction temperature of the reaction is 50～150 DEG C, the reaction
Reaction time be 0.5h～3h.
In certain embodiments, the reactant for obtaining after the hydrogel is mixed with enhancing solution is obtained after drying
In the step of graphene/carbon nano-tube composite aerogel, the temperature of the drying is -20 DEG C～-196 DEG C.
On the other hand, present invention also offers a kind of graphene/carbon nano-tube composite aerogel, including by above-mentioned graphite
The preparation method of alkene/CNT composite aerogel is prepared.
The preparation method of the graphene/carbon nano-tube composite aerogel that the present invention is provided, by CNT oxidant oxygen
Change, will graphene oxide, oxidation after CNT and reducing agent mixing after react, obtain hydrogel, by the hydrogel with
Strengthen the reactant obtained after solution mixing and obtain the graphene/carbon nano-tube composite aerogel after drying, the present invention is logical
The synergy crossed between the one-dimensional material between CNT and Graphene and two-dimensional material, using CNT big L/D ratio
To strengthen the interaction between graphene film, the mechanical performance of aeroge can be significantly improved.
Description of the drawings
The step of Fig. 1 is the preparation method of the graphene/carbon nano-tube composite aerogel that the embodiment of the present invention one is provided is flowed
Cheng Tu；
Fig. 2 is the infrared comparison diagram of graphene/carbon nano-tube composite aerogel obtained in the embodiment of the present invention 1；
Fig. 3 is graphene/carbon nano-tube composite aerogel electron microscope (SEM) scanning obtained in the embodiment of the present invention 1
Figure；
Fig. 4 is graphene/carbon nano-tube composite aerogel compression verification figure obtained in the embodiment of the present invention 1；
Fig. 5 is graphene/carbon nano-tube composite aerogel absorption test chart obtained in the embodiment of the present invention 1.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
The step of referring to Fig. 1, the preparation method of the graphene/carbon nano-tube composite aerogel that the present invention is provided flow process
Figure, methods described comprises the steps：
Step S1：By CNT with oxidizing；
In as a preferred embodiment of the present invention, a diameter of 20～100nm of the CNT, length is 10～50 μ
M, the oxidant quality is 5～200 times of the carbon nanotube mass, and oxidizing temperature is 30～100 DEG C.
In as a preferred embodiment of the present invention, the oxidant is in potassium permanganate, hydrogen peroxide, the concentrated sulfuric acid and red fuming nitric acid (RFNA)
At least one.
Just CNT of the invention, with oxidizing, can make carbon nano tube surface grow pole by oxidation
Property organo-functional group, increase dispersiveness of the CNT in water, improve the mechanical humidification in follow-up three-dimensional material.
Step S2：To react after CNT after graphene oxide, oxidation and reducing agent mixing, obtain hydrogel；
It is 1 as the mass ratio of a preferred embodiment of the present invention, the graphene oxide and the CNT：0.1～
1, the reducing agent is 0.5～1 with the mass ratio of the graphene oxide：10.
Used as a preferred embodiment of the present invention, the reducing agent is hydrazine hydrate, ascorbic acid, ammonium sulfide, vulcanized sodium, second two
At least one in amine and citric acid.
Specifically, the CNT after graphene oxide and oxidation is mixed and dispersed in water, adds reducing agent reaction,
So as to obtain hydrogel, it is preferable that the temperature of the reaction is 50～150 DEG C, the time of the reaction is 1h～6h.
It is appreciated that can also include hydrogel after step S2 is completed by washing to remove unnecessary reducing agent
Step.
Step S3：After the hydrogel for obtaining is mixed with enhancing solution, the reactant for obtaining obtains after drying institute
Graphene/carbon nano-tube composite aerogel is stated, the enhancing solution is at least one in ethanol, methyl alcohol and ammoniacal liquor.
Used as a preferred embodiment of the present invention, the mass fraction concentration of the enhancing solution is 5%～40%.
Used as a preferred embodiment of the present invention, the reaction temperature of the reaction is 50～150 DEG C, during the reaction of the reaction
Between be 0.5h～3h, the temperature of the drying is -20 DEG C～-196 DEG C.
It is appreciated that after the hydrogel for obtaining is mixed with enhancing solution, using solution is strengthened hydrogel is improved
Mechanical strength.
The preparation method of the graphene/carbon nano-tube composite aerogel that the present invention is provided, by CNT oxidant oxygen
Change, will graphene oxide, oxidation after CNT and reducing agent mixing after react, obtain hydrogel by the hydrogel with increase
The reactant obtained after strong solution mixing obtains after drying the graphene/carbon nano-tube composite aerogel, by the present invention
The graphene/carbon nano-tube composite aerogel that the method for offer is prepared, due to one-dimensional between CNT and Graphene
Synergy between material and two-dimensional material, the phase interaction between graphene film is strengthened using CNT big L/D ratio
With the mechanical performance of aeroge can be significantly improved.
Implementing for the present invention is described in detail below in conjunction with specific embodiment：
Embodiment 1
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 1mg oxidations is mixed and dispersed in 10mg water, add hydrazine hydrate
And 6h is reacted at 60 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 30% methanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Infrared scan is carried out to graphene/carbon nano-tube composite aerogel obtained in embodiment 1, Fig. 2 is obtained.Can by Fig. 2
To find out, graphene/carbon nano-tube composite aerogel is smoothly reduced during the course of the reaction obtained in embodiment 1.
Electron micrographs are carried out to graphene/carbon nano-tube composite aerogel obtained in embodiment 1, Fig. 3 is obtained.By scheming
3 as can be seen that graphene/carbon nano-tube composite aerogel obtained in embodiment 1 has abundant loose structure.
Performance evaluation is compressed to graphene/carbon nano-tube composite aerogel obtained in embodiment 1, Fig. 4 is obtained.By scheming
4 as can be seen that graphene/carbon nano-tube composite aerogel obtained in embodiment 1 has good mechanical performance.
Absorption property test is carried out to graphene/carbon nano-tube composite aerogel obtained in embodiment 1, by adsorbing acetic acid
Ethyl ester, obtains Fig. 5.As seen from Figure 5 graphene/carbon nano-tube composite aerogel has good suction obtained in embodiment 1
Attached performance.
Embodiment 2
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 2mg oxidations is mixed and dispersed in 10mg water, add hydrazine hydrate
And 6h is reacted at 60 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 30% methanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Embodiment 3
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 3mg oxidations is mixed and dispersed in 10mg water, add hydrazine hydrate
And 6h is reacted at 60 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 30% methanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Embodiment 4
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 4mg oxidations is mixed and dispersed in 10mg water, add hydrazine hydrate
And 6h is reacted at 60 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 30% methanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Embodiment 5
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 5mg oxidations is mixed and dispersed in 10mg water, add hydrazine hydrate
And 6h is reacted at 60 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 30% methanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Embodiment 6
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 1mg oxidations is mixed and dispersed in 10mg water, add Vitamin C
Acid simultaneously reacts 6h at 60 DEG C, obtains hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 30% methanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Embodiment 7
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 1mg oxidations is mixed and dispersed in 10mg water, add ammonium sulfide
And 6h is reacted at 60 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 30% methanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Embodiment 8
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 1mg oxidations is mixed and dispersed in 10mg water, add vulcanized sodium
And 6h is reacted at 60 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 30% methanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Embodiment 9
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 1mg oxidations is mixed and dispersed in 10mg water, add citric acid
And 6h is reacted at 60 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 30% methanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Embodiment 10
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 5mg oxidations is mixed and dispersed in 10mg water, add citric acid
And 6h is reacted at 60 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 30% ethanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Embodiment 11
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 1mg oxidations is mixed and dispersed in 10mg water, add citric acid
And 6h is reacted at 60 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 10% methanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Embodiment 12
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 1mg oxidations is mixed and dispersed in 10mg water, add citric acid
And 6h is reacted at 60 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and the ammoniacal liquor using 10% increases at 50 DEG C
Strong 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Embodiment 13
Make the concentrated sulfuric acid of 50mL and the red fuming nitric acid (RFNA) of 50mL that 250mg CNTs are aoxidized and washed at 30 DEG C.
Take 10mg graphene oxides and the CNT after 1mg oxidations is mixed and dispersed in 10mg water, add citric acid
And 2h is reacted at 120 DEG C, obtain hydrogel.
Hydrogel makes to be washed with deionized 5h and eliminates to unnecessary reducing agent, and using 30% methanol solution at 50 DEG C
Lower enhancing 3h, obtains graphene/carbon nano-tube composite aerogel after freeze-drying.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (13)
1. a kind of preparation method of graphene/carbon nano-tube composite aerogel, it is characterised in that methods described includes following steps
Suddenly：
By CNT with oxidizing；
To react after CNT after graphene oxide, oxidation and reducing agent mixing, obtain hydrogel；And
The reactant obtained after the hydrogel is mixed with enhancing solution obtains after drying the graphene/carbon nano-tube and answers
Aeroge is closed, the enhancing solution is at least one in ethanol, methyl alcohol and ammoniacal liquor.
2. the preparation method of graphene/carbon nano-tube composite aerogel as claimed in claim 1, it is characterised in that by carbon
With in oxidizing step, the oxidant quality is 5～200 times of the carbon nanotube mass to nanotube, oxidation temperature
Spend for 30～100 DEG C.
3. the preparation method of graphene/carbon nano-tube composite aerogel as claimed in claim 2, it is characterised in that by carbon
With in oxidizing step, a diameter of 20～100nm of the CNT, length is 10～50 μm to nanotube.
4. the preparation method of graphene/carbon nano-tube composite aerogel as claimed in claim 2, it is characterised in that by carbon
Nanotube with oxidizing step, the oxidant be in potassium permanganate, hydrogen peroxide, the concentrated sulfuric acid and red fuming nitric acid (RFNA) at least
It is a kind of.
5. the preparation method of graphene/carbon nano-tube composite aerogel as claimed in claim 1, it is characterised in that by oxygen
React after CNT and reducing agent mixing after graphite alkene, oxidation, the step of obtain hydrogel in, the graphene oxide
It is 1 with the mass ratio of the CNT：0.1～1.
6. the preparation method of graphene/carbon nano-tube composite aerogel as claimed in claim 1, it is characterised in that by oxygen
React after CNT and reducing agent mixing after graphite alkene, oxidation, the step of obtain hydrogel in, the reducing agent and institute
The mass ratio for stating graphene oxide is 0.5～1：10.
7. the preparation method of graphene/carbon nano-tube composite aerogel as claimed in claim 6, it is characterised in that by oxygen
React after CNT and reducing agent mixing after graphite alkene, oxidation, the step of obtain hydrogel in, the reducing agent is water
Close at least one in hydrazine, ascorbic acid, ammonium sulfide, vulcanized sodium, ethylenediamine and citric acid.
8. the preparation method of graphene/carbon nano-tube composite aerogel as claimed in claim 1, it is characterised in that by oxygen
React after CNT and reducing agent mixing after graphite alkene, oxidation, the step of obtain hydrogel in, the temperature of the reaction
For 50～150 DEG C, the time of the reaction is 1h～6h.
9. the preparation method of graphene/carbon nano-tube composite aerogel as claimed in claim 1, it is characterised in that by oxygen
React after CNT and reducing agent mixing after graphite alkene, oxidation, the step of obtain hydrogel after, by the hydrogel with
Before strengthening the step of solution mixes, also include the step of hydrogel is passed through into washing to remove unnecessary hydrogel.
10. the preparation method of graphene/carbon nano-tube composite aerogel as claimed in claim 1, it is characterised in that by institute
State the reactant obtained after hydrogel mixes with enhancing solution and obtain the graphene/carbon nano-tube composite aerogel after drying
The step of in, it is described strengthen solution mass fraction concentration be 5%～40%.
The preparation method of 11. graphene/carbon nano-tube composite aerogels as claimed in claim 10, it is characterised in that inciting somebody to action
The reactant that the hydrogel is obtained after mixing with enhancing solution obtains after drying the compound airsetting of the graphene/carbon nano-tube
In the step of glue, the reaction temperature of the reaction is 50～150 DEG C, and the reaction time of the reaction is 0.5h～3h.
The preparation method of 12. graphene/carbon nano-tube composite aerogels as claimed in claim 1, it is characterised in that by institute
State the reactant obtained after hydrogel mixes with enhancing solution and obtain the graphene/carbon nano-tube composite aerogel after drying
The step of in, the temperature of the drying is -20 DEG C～-196 DEG C.
13. a kind of graphene/carbon nano-tube composite aerogels, it is characterised in that by described in any one in claim 1～11
The preparation method of graphene/carbon nano-tube composite aerogel prepare.
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| CN108940141A (en) * | 2018-08-10 | 2018-12-07 | 太原理工大学 | A kind of preparation method of graphene composite aerogel |
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| CN107286491A (en) * | 2017-06-16 | 2017-10-24 | 青岛大学 | A kind of high conductivity carbon nano tube/graphene aeroge/poly styrene composite material and preparation method thereof |
| CN107286491B (en) * | 2017-06-16 | 2020-02-07 | 青岛大学 | High-conductivity carbon nanotube/graphene aerogel/polystyrene composite material and preparation method thereof |
| CN107622879A (en) * | 2017-10-24 | 2018-01-23 | 福建宸琦新材料科技有限公司 | The preparation method of nitrogen-doped graphene/carbon nanotube aerogel electrode |
| CN107622879B (en) * | 2017-10-24 | 2020-01-10 | 福建宸琦新材料科技有限公司 | Preparation method of nitrogen-doped graphene/carbon nanotube aerogel electrode |
| CN108975863A (en) * | 2018-07-06 | 2018-12-11 | 中国航发北京航空材料研究院 | Graphene-carbon nano tube composite aerogel based on hydrogen bubble template |
| CN108940141A (en) * | 2018-08-10 | 2018-12-07 | 太原理工大学 | A kind of preparation method of graphene composite aerogel |
| CN108940141B (en) * | 2018-08-10 | 2020-09-08 | 太原理工大学 | Preparation method of graphene composite aerogel |
| CN110217779A (en) * | 2019-06-27 | 2019-09-10 | 中素新科技有限公司 | Carbon nano-tube modification graphene aerogel and its preparation method and application |
| CN110217779B (en) * | 2019-06-27 | 2021-01-26 | 中素新科技有限公司 | Carbon nanotube modified graphene aerogel and preparation method and application thereof |
| CN113386412A (en) * | 2021-06-28 | 2021-09-14 | 太原理工大学 | Graphene/carbon nanotube aerogel electromagnetic shielding composite fabric and preparation method and application thereof |
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