CN106976867A - A kind of method that microwave prepares CNT - Google Patents
A kind of method that microwave prepares CNT Download PDFInfo
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- CN106976867A CN106976867A CN201710186429.8A CN201710186429A CN106976867A CN 106976867 A CN106976867 A CN 106976867A CN 201710186429 A CN201710186429 A CN 201710186429A CN 106976867 A CN106976867 A CN 106976867A
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- microwave
- cnt
- ferrocene
- prepares cnt
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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Abstract
The present invention relates to a kind of method that microwave prepares CNT, belong to field of material preparation.The present invention prepares CNT using the method for microwave heated metal material and the mixture of ferrocene:Conductive metallic material and ferrocene are well mixed in a mixer, both mixtures are directly subjected to microwave heating afterwards, conductive metallic material absorbs microwave and is brought rapidly up, system temperature is raised, ferrocene resolves into Fe nanometer particles and cyclopentadienyl group, Fe nanometer particles catalysis cyclopentadienyl group generation CNT.It is simple and easy to apply that this method prepares CNT, with low cost, can be mass-produced, and obtained CNT can be used for reinforcing material, absorbing material, magnetic shielding material and enhancing heat conducting material etc..
Description
Technical field
The present invention relates to a kind of method that microwave prepares CNT, belong to the technical field of material preparation.
Background technology
Carbon nanomaterial, such as CNT (CNTs), carbon nano-fiber (CNFs), graphene etc. are due to its highly significant
Unique property, such as tensile strength, modulus of elasticity, electric conductivity, the heat-conductive characteristic of superelevation etc. cause scientists
Huge concern, these materials are described as most potential material of next epoch.Wherein CNTs is by single or multiple lift stone
Black alkene is crimped around same center according to certain angle, the big fullerene envelope of the hemispherical that two ends are formed by five-membered ring and heptatomic ring
Firmly formed.CNT is the hexagon net constituted after carbon atom is bonded completely by 3 carbon atoms of sp2 hydridization and surrounding
The face of cylinder that network planar structure is surrounded.The cylinder-like structure of this bending can produce quantum confinement and σ-π hydridization again, add
The pi-electron delocalization structure that sp2 hydridization is produced imparts the excellent optics of CNTs, electricity, magnetic property.Moreover, CNTs
Axial arrangement also imparts the excellent axial modulus and intensity of CNTs, is for strengthening the preferable material of composite materials property
Material.
So far, synthesis CNTs method mainly has chemical deposition, arc process, laser ablation method, gas phase catalysis life
Regular way etc..The harsh experiment condition of these synthetic methods needs, such as inert gas shielding, HTHP etc., substantially increase
Danger in building-up process.The cost of instrument is also improved simultaneously.The invention provides a kind of synthesis of household microwave oven
CNTs method, it is simple to operate, and CNTs can be synthesized under normal atmospheric atmosphere.
The content of the invention
Technical problem:It is an object of the invention to provide a kind of method that microwave prepares CNT, this method prepares carbon and received
Mitron is simple and easy to apply, with low cost, can be mass-produced.
Technical scheme:The invention provides a kind of method that microwave prepares CNT, by conductive metallic material and two cyclopentadienyls
Iron is well mixed in a mixer, and both mixtures are directly carried out into microwave heating afterwards, and conductive metallic material absorbs microwave
It is brought rapidly up, system temperature rise, ferrocene resolves into Fe nanometer particles and cyclopentadienyl group, Fe nanometer particles catalysis ring penta 2
Alkenyl generates CNT.The preparation method is specific as follows:Conductive metallic material and ferrocene are well mixed, incite somebody to action both afterwards
The heating of mixture microwave, heating finishes and obtains CNT.
Wherein:
Described conductive metallic material is copper product, Mo, iron material, Steel material.
Described conductive metallic material is thread, block, spherical.
Described conductive metallic material and the mass ratio of ferrocene are 1:1-1:100.
It is described to be by conductive metallic material and the well mixed method of ferrocene:Conductive metallic material and ferrocene are put
Enter in crucible, 1-100min is mixed under blender 100-3500rpm.
The microwave frequency of microwave heating is 2.40-2.50GHz, and microwave power is 800~2000W, and the heat time is
10-60s。
The microwave heating refers to mixture being put into progress microwave heating in micro-wave oven.
Beneficial effect:Compared with prior art, the method that the micro-wave oven that the present invention is provided prepares CNT need not be tight
Severe experiment condition, it is simple and easy to apply, it is with low cost, it can be mass-produced.
Brief description of the drawings
Fig. 1 is CNT SEM figures prepared in the embodiment of the present invention 1;
Fig. 2 is CNT SEM figures prepared in the embodiment of the present invention 2;
Fig. 3 is CNT SEM figures prepared in the embodiment of the present invention 3;
Fig. 4 is CNT SEM figures prepared in the embodiment of the present invention 4.
Embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
Embodiment 1:
Microwave heats copper wire and ferrocene mixture prepares CNT:
1st, batch mixing --- 1 copper wire (0.02g), ferrocene (2g) are put into crucible, mixed under blender 100rpm
100min, obtains uniform mixture;
2nd, microwave --- the copper wire mixed and ferrocene are put into heating in micro-wave oven (2.45GHz, 800W), during heating
Between be 20s;
3rd, finished product --- microwave heating is finished, and is sampled, you can obtain target product.
The SEM figures of obtained CNT are as shown in Figure 1.
Embodiment 2:
Microwave heats molybdenum filament and ferrocene mixture prepares CNT:
1st, batch mixing --- 3 molybdenum filaments (0.4g), ferrocene (4g) are put into crucible, mixed under blender 2500rpm
50min, obtains uniform mixture;
2nd, microwave --- the copper wire mixed and ferrocene are put into heating in micro-wave oven (2.45GHz, 1000W), heating
Time is 40s;
3rd, finished product --- microwave heating is finished, and is sampled, you can obtain target product.
The SEM figures of obtained CNT are as shown in Figure 2.
Embodiment 3:
Microwave heats iron wire and ferrocene mixture prepares CNT:
1st, batch mixing --- 5 iron wires (1g), ferrocene (1g) are put into crucible, mixed under blender 3500rpm
1min, obtains uniform mixture;
2nd, microwave --- the iron wire mixed and ferrocene are put into heating in micro-wave oven (2.4GHz, 2000W), during heating
Between be 10s;
3rd, finished product --- microwave heating is finished, and is sampled, you can obtain target product.
The SEM figures of obtained CNT are as shown in Figure 3.
Embodiment 4:
Microwave heats steel fibre and ferrocene mixture prepares CNT:
1st, batch mixing --- 5 steel fibres (2g), ferrocene (2g) are put into crucible, mixed under blender 1500rpm
80min, obtains uniform mixture;
2nd, microwave --- the steel fibre mixed and ferrocene are put into heating in micro-wave oven (2.5GHz, 1500W), heating
Time is 60s DEG C;
3rd, finished product --- microwave 800W heating is finished, and is sampled, you can obtain target product.
The SEM figures of obtained CNT are as shown in Figure 4.
In addition to the implementation, the present invention can also have other embodiment, all use equivalent substitution or equivalent transformation shape
Into technical scheme, belong to the protection domain of application claims.
Claims (7)
1. a kind of method that microwave prepares CNT, it is characterised in that:The preparation method is as follows:By conductive metallic material and two
Luxuriant iron is well mixed, and afterwards heats both mixture microwaves, and heating, which is finished, obtains CNT.
2. the method that a kind of microwave as claimed in claim 1 prepares CNT, it is characterised in that:Described conducting metal material
Expect for copper product, Mo, iron material, Steel material.
3. the method that a kind of microwave as claimed in claim 1 or 2 prepares CNT, it is characterised in that:Described conductive gold
It is thread, block, spherical to belong to material.
4. the method that a kind of microwave as claimed in claim 3 prepares CNT, it is characterised in that:Described conducting metal material
The mass ratio of material and ferrocene is 1:1-1:100.
5. the method that a kind of microwave as claimed in claim 1 prepares CNT, it is characterised in that:It is described by conducting metal
Material and the well mixed method of ferrocene are:Conductive metallic material and ferrocene are put into crucible, in blender 100-
1-100min is mixed under 3500rpm.
6. the method that a kind of microwave as claimed in claim 1 prepares CNT, it is characterised in that:It is micro- that the microwave is heated
Wave frequency rate is 2.40-2.50GHz, and microwave power is 800~2000W, and the heat time is 10-60s.
7. the method that a kind of microwave as claimed in claim 1 prepares CNT, it is characterised in that:The microwave heating refers to
Mixture is put into progress microwave heating in micro-wave oven.
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CN201710186429.8A CN106976867A (en) | 2017-03-24 | 2017-03-24 | A kind of method that microwave prepares CNT |
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CN201710186429.8A CN106976867A (en) | 2017-03-24 | 2017-03-24 | A kind of method that microwave prepares CNT |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108190860A (en) * | 2018-01-31 | 2018-06-22 | 南京大学 | A kind of method that microwave prepares single-walled carbon nanotube |
CN110697686A (en) * | 2019-09-17 | 2020-01-17 | 北京化工大学 | Method for preparing carbon nano tube by heating powder |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106744818A (en) * | 2017-03-03 | 2017-05-31 | 东南大学 | A kind of method that microwave prepares CNT |
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106744818A (en) * | 2017-03-03 | 2017-05-31 | 东南大学 | A kind of method that microwave prepares CNT |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108190860A (en) * | 2018-01-31 | 2018-06-22 | 南京大学 | A kind of method that microwave prepares single-walled carbon nanotube |
CN110697686A (en) * | 2019-09-17 | 2020-01-17 | 北京化工大学 | Method for preparing carbon nano tube by heating powder |
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Application publication date: 20170725 |
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