CN112830473A - Carbon material prepared by promoting polyolefin carbonization by using inorganic carbon and preparation method - Google Patents
Carbon material prepared by promoting polyolefin carbonization by using inorganic carbon and preparation method Download PDFInfo
- Publication number
- CN112830473A CN112830473A CN202110104197.3A CN202110104197A CN112830473A CN 112830473 A CN112830473 A CN 112830473A CN 202110104197 A CN202110104197 A CN 202110104197A CN 112830473 A CN112830473 A CN 112830473A
- Authority
- CN
- China
- Prior art keywords
- carbonization
- carbon material
- polyolefin
- carbon
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/16—Preparation
- C01B32/162—Preparation characterised by catalysts
Abstract
The invention belongs to the technical field of polymer carbonization, and particularly relates to a carbon material prepared by promoting polyolefin carbonization by using inorganic carbon and a preparation method thereof. The preparation method comprises the following steps: (1) uniformly mixing polyolefin and an inorganic carbon material to obtain a mixture; (2) and heating the mixture to a preset carbonization temperature for carbonization to obtain the carbon material. The invention promotes the low-temperature carbonization of polyolefin by inorganic carbon to prepare the functional carbon material, the prepared carbon material does not need post-treatment, the use of the inorganic carbon catalyst also promotes the crosslinking reaction of the polyolefin, effectively improves the carbonization yield, reduces the carbonization temperature, and simultaneously has the advantages of low catalyst price, low carbonization temperature, high carbonization controllable degree and the like. Has important guiding significance for large-scale treatment of waste polyolefin plastic products.
Description
Technical Field
The invention belongs to the technical field of polymer carbonization, and particularly relates to a carbon material prepared by promoting polyolefin carbonization by using inorganic carbon and a preparation method thereof.
Background
The wide use of plastic products brings convenience to our lives, and simultaneously inevitably generates a large amount of waste plastics, the chemical stability of the plastics is good, the plastics are difficult to degrade under natural conditions, and dozens of years or even hundreds of years are often needed, so that serious environmental problems are caused. The main types of polyolefin plastic products, which are the largest in proportion among plastic products, are polyethylene and polypropylene. The polyolefin is mainly composed of carbon and hydrogen, and the content of the carbon is as high as 86%. Therefore, the preparation of the carbon material by using the polyolefin as the raw material has great industrial application potential.
In reported studies, typical examples are Vilas g.pol et al, which convert waste polyolefin into Spherical carbon particles using a high temperature high pressure autoclave at 700 ℃ under 33.3 atmospheres, or convert polyethylene into carbon nanotubes using cobalt acetate as a catalyst at 700 ℃ under 68 atmospheres (thermal carbon fibers and carbon nanotubes prepared by automatic reactions: Evaluation as antibodies in lithium electrochemical cells. energy environment. sci.,2011,4, 1904-. The method can convert waste polyolefin into carbon material, and the prepared carbon material has outstanding performance in the aspect of lithium ion batteries; it also has significant disadvantages such as harsh reaction conditions, high equipment requirements, and the need for post-treatment to remove the catalyst.
The subject group of Tang-Tao researchers proposed "combinatorial catalysts" (i.e., a combination of nickel oxide and organically modified montmorillonite) to convert polyethylene into carbon nanotubes and carbon fibers at 700 deg.C, wherein the organically modified montmorillonite can promote the degradation of polyethylene to generate a large amount of small-molecule hydrocarbons and aromatic compounds, and the nickel oxide re-catalyzes the carbonization of these small molecules, with yields of carbon materials of up to 30.9-56.5 wt% (linking in flexibility of channel structure of polyethylene on the formation of cup-stacked carbon nanotubes/carbon nanoparticles under the combined Catalysis of CuBr and NiO. applied Catalysis B: Environmental 2014,147,592, 601). The method has the disadvantages that the post-treatment process is complicated, a large amount of strongly corrosive hydrofluoric acid (or NaOH) is required to remove the residual nickel catalyst and montmorillonite, a large amount of waste water is generated, and the large-scale preparation of the carbon material is difficult.
The Sungho Lee group, in 2017, first used a Thermal oxidation process as a simple and efficient method for pretreating linear low density polyethylene, by which the chemical structure of linear low density polyethylene was adjusted to successfully convert non-carbonized linear low density polyethylene into an ordered carbon material (High performance graphics from polyethylene: Thermal oxidation as a stabilization paper accessed. chemistry of Materials 2017,29, 9518-9527). Although the graphitized carbon material prepared by the method has excellent performance, the method is only suitable for film linear low-density polyethylene samples, a matrix is required to be used in the preparation process, the yield of the carbon material is low, the morphology of the carbon material is difficult to accurately regulate and control, and the method lacks of practical application prospect.
CN110817840A discloses a method for carbonizing polyolefin, and specifically discloses that a mixture of polyolefin and biomass is heated in an oxygen-containing atmosphere to generate carbonization reaction; wherein the polyolefin reacts with oxygen under the heating condition to form an oxygen-containing intermediate cross-linked structure, and the oxygen-containing intermediate cross-linked structure is subjected to condensation and/or polymerization reaction with an intermediate product containing hydroxyl and/or oxygen free radicals formed in the carbonization process of the biomass to form a cross-linked structure, so that the breakage of a polymer main chain is inhibited, the carbonization of the polyolefin is promoted, and an amorphous carbonization product is formed. Compared with the traditional carbonization process, the method not only greatly reduces energy loss, but also innovatively solves the problem that the polyolefin is difficult to form carbon under the condition of no catalyst, provides a feasible new technology for large-scale recycling of waste polyolefin in the future, however, the structure of the carbon material is difficult to control accurately (the product often has no regular morphology), and has an improvement space in the aspect of carbonization efficiency.
In conclusion, the prior art still lacks a new polyolefin carbonization technology with the characteristics of mild conditions, no metal catalyst, no post-treatment, high carbonization controllable degree and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a simple and effective method for preparing a carbon material by promoting the low-temperature carbonization of polyolefin by using a cheap carbon material, which comprises the steps of uniformly mixing polyolefin and an inorganic carbon catalyst, heating, the polyolefin is melted and coated on the surface of the carbon material, and reacts with oxygen in the air along with the continuous increase of the temperature, oxygen-containing functional groups are generated on the main chain, polyolefin is degraded to generate a large amount of macromolecular free radicals, the macromolecular free radicals are captured on the surface of the carbon material and are not easily decomposed into smaller micromolecular fragments and then volatilized, but the macromolecular free radicals can be promoted to perform subsequent crosslinking reaction, thereby improving the carbonization reaction efficiency and the yield of the carbon material and overcoming the technical problems of harsh conditions, post-treatment of products and the like in the reported technology in the field of polyolefin catalytic carbonization. The detailed technical scheme of the invention is as follows.
To achieve the above objects, according to one aspect of the present invention, there is provided a method for preparing a carbon material by carbonizing an inorganic carbon-promoted polyolefin, comprising the steps of:
(1) uniformly mixing polyolefin and an inorganic carbon material to obtain a mixture;
(2) and heating the mixture to a preset carbonization temperature for carbonization to obtain the carbon material.
Preferably, the carbonization temperature is 230-420 ℃, and the carbonization time is 5-120 min.
Preferably, the carbonization temperature is 250-390 ℃, and the carbonization time is 15-45 min.
Preferably, the step (2) includes the sub-steps of:
(2-1) heating the mixture to 100-180 ℃, and preserving the heat for 1-10min to enable the polyolefin to be melted and coated on the surface of the inorganic carbon material;
(2-2) continuously heating to the temperature of 180 ℃ and 230 ℃, and preserving the heat for 1-10min to enable the polyolefin to react with oxygen in the air to generate oxygen-containing functional groups;
and (2-3) continuously heating to a set carbonization temperature, carbonizing for a period of time, and cooling to obtain the carbon material.
Preferably, the heating rate used in the heating process is 2-40 deg.C/min, preferably 5-20 deg.C/min.
Preferably, the mass ratio of the inorganic carbon material to the polyolefin is (5-50): (50-95).
Preferably, the mixing in step (1) is ball milling.
Preferably, the inorganic carbon material is one or a mixture of more of bamboo carbon black, carbon nanotubes, activated carbon, carbon nanofibers and carbon fibers.
Preferably, the polyolefin is one or a mixture of a plurality of low density polyethylene, linear low density polyethylene, high density polyethylene, isotactic polypropylene, atactic polypropylene, syndiotactic polypropylene, polybutene, polyisobutylene, polypentene, polyhexene, polyoctene, ethylene-vinyl acetate copolymer, ethylene-acrylic acid or acrylate copolymer, and poly 4-methyl-1-pentene.
According to another aspect of the present invention, there is provided a carbon material prepared according to the above-described preparation method.
The invention has the following beneficial effects:
(1) the invention promotes the low-temperature carbonization of polyolefin by the carbon material to prepare the functional carbon material, the prepared carbon material does not need post-treatment, the use of the inorganic carbon catalyst also promotes the crosslinking reaction of the polyolefin, effectively improves the carbonization yield, reduces the carbonization temperature, and simultaneously has the advantages of low catalyst price, low carbonization temperature and the like. Has important guiding significance for large-scale treatment of waste polyolefin plastic products.
(2) The method uses the cheap and easily-obtained carbon material catalyst to promote the carbonization of the polyolefin at a lower temperature, effectively solves the problems of complicated polyolefin sample preparation, harsh carbonization reaction conditions, lower carbonization product yield, high equipment requirement and the like, improves the utilization rate of the polyolefin in the carbonization process, is simple and effective, and has greater application potential in the technical field of waste polyolefin recycling.
(3) The carbonization temperature in the invention is 230-420 ℃, compared with the carbonization temperature of the traditional technology which is above 700 ℃, the carbonization temperature is greatly reduced, and the carbonization effect is obvious. The reduction of the carbonization temperature not only can reduce the preparation cost by reducing the energy consumption required in the process, but also avoids harsh high-temperature and high-pressure reaction conditions, so that the carbonization technology is easier to popularize and apply in a large scale. In addition, the temperature rise rate selected in the technology is moderate, so that sufficient time can be ensured for full reaction and synergistic effect between decomposition products in the carbonization process, the carbonization process is more uniform, and the yield is also ensured. Meanwhile, the whole carbonization time can be in an acceptable range, and the method is favorable for practical popularization and application.
(4) The carbon material used in the present invention catalyzes the formation of the desired carbon material after carbonization of the polyolefin without the need for complicated post-treatment processes. In the conventional carbonization technology, after the polyolefin is treated under high temperature and high pressure, a catalyst of iron, cobalt, nickel or a combination thereof is added to promote the polyolefin to be converted into a carbon material. The addition of metal catalysts brings about a cumbersome post-treatment process for purification of carbon materials. In the invention, no metal catalyst is added in the carbonization of the polyolefin, and the used carbon material catalyst can directly participate in the carbonization reaction process and can be used as a carbon material product.
Drawings
FIG. 1 is an appearance diagram of carbon materials prepared in examples 1-6, wherein (a) in FIG. 1 is the carbon material of example 1, (b) in FIG. 1 is the carbon material of example 2, (c) in FIG. 1 is the carbon material of example 3, (d) in FIG. 1 is the carbon material of example 4, (e) in FIG. 1 is the carbon material of example 5, and (f) in FIG. 1 is the carbon material of example 6;
FIG. 2 is an appearance diagram of carbon materials prepared in examples 7 to 9 and comparative examples 1 to 3, wherein (a) in FIG. 2 is the carbon material of example 7, (b) in FIG. 2 is the carbon material of example 8, (c) in FIG. 2 is the carbon material of example 9, (d) in FIG. 2 is the carbon material of comparative example 1, (e) in FIG. 2 is the carbon material of comparative example 2, and (f) in FIG. 2 is the carbon material of comparative example 3;
FIG. 3 is an X-ray diffraction chart of the carbon materials prepared in example 1, example 9 and comparative example 3;
FIG. 4 is an X-ray diffraction chart of the carbon material produced in example 7;
FIG. 5 is an X-ray diffraction chart of the carbon material produced in example 8;
FIG. 6 is a scanning electron microscope image of the carbon material prepared in example 1, with dimensions of 0.5 μm;
FIG. 7 is a scanning electron microscope image of the carbon material prepared in example 1, with dimensions of 0.2 μm;
FIG. 8 is a scanning electron microscope image of the carbon material prepared in example 3, with dimensions of 0.5 μm;
FIG. 9 is a Raman spectrum of the carbon material prepared in example 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
(1) 1g of linear low density polyethylene and 0.20g of carbon black are weighed and are stirred and mixed uniformly by ball milling to obtain a polyolefin-carbon black mixture.
(2) And (2) putting the polyolefin-carbon black mixture obtained in the step (1) into a crucible, and then putting the crucible into a muffle furnace for heating. Setting the temperature rise rate of a muffle furnace at 5 ℃/min, keeping the temperature at 150 ℃ for 1min, keeping the temperature at 200 ℃ for 1min, setting the carbonization temperature at 330 ℃, keeping the constant temperature for 30min, and obtaining the carbon material after the crucible is naturally cooled. And the mass of the product was weighed, and the yield of the carbon material was calculated to be 52.2 wt%.
The carbonized product was prepared as shown in (a) of fig. 1. The product appeared to be a carbon black, solid and light, indicating that the mixture of linear low density polyethylene and carbon black had carbonized to completion at 330 ℃.
Example 2
The mass of the carbon black used in the above example 1 was changed from 0.20g to 0.35g, the temperature increase rate was changed from 5 ℃/min to 35 ℃/min, the carbonization temperature was changed from 330 ℃ to 300 ℃, and the other steps were not changed, so that a carbonized product of linear low density polyethylene and carbon black was obtained.
The carbonized product was prepared as shown in (b) of FIG. 1. The product appeared to be carbon black, solid and light, indicating that the mixture of linear low density polyethylene and carbon black had carbonized completely under the conditions and the yield of carbon material was 54.9 wt%.
Example 3
The carbon material catalyst used in the above example 1 was changed from carbon black to carbon nanotubes, the holding time was changed from 30min to 60min, and the other steps were not changed, to obtain a carbonized product of linear low density polyethylene and carbon nanotubes.
The carbonized product was prepared as shown in (c) of FIG. 1. The product appeared black, solid and light, indicating that the mixture of linear low density polyethylene and carbon nanotubes had been carbonized to completion under this condition, with a carbon material yield of 58.0 wt%.
Example 4
The raw material used in the above example 1 was changed from linear low density polyethylene to isotactic polypropylene, the carbon material catalyst was changed from carbon black to carbon nanofibers, and the other steps were not changed to obtain a carbonized product of isotactic polypropylene and carbon nanofibers.
The carbonized product was prepared as shown in (d) of FIG. 1. The product appeared black, solid and light, indicating that the mixture of isotactic polypropylene and carbon nanofibers had been carbonized completely under this condition, with a carbon material yield of 45.8 wt%.
Example 5
The raw material used in the above example 1 was changed from linear low density polyethylene to polypentene, the holding time was changed from 30min to 60min, and the other steps were not changed to obtain a carbonized product of polypentene and carbon black.
The carbonized product was prepared as shown in (e) of FIG. 1. The product appeared to be carbon black, solid and light, indicating that the mixture of polypentene and carbon black had carbonized to completion under this condition, with a carbon material yield of 53.2 wt%.
Example 6
The raw material used in the above example 1 was changed from linear low density polyethylene to ethylene-acrylic acid copolymer, the rate of temperature rise was changed from 5 ℃/min to 35 ℃/min, and the other steps were not changed, to obtain the carbonized product of ethylene-acrylic acid copolymer and carbon black.
The carbonized product was prepared as shown in (f) of FIG. 1. The product appeared to be carbon black, solid and light, indicating that the mixture of ethylene-acrylic acid copolymer and carbon black had carbonized completely under the conditions and the yield of carbon material was 51.9 wt%.
Example 7
The raw material used in the above example 1 is changed from linear low density polyethylene to waste agricultural mulching film, the agricultural mulching film needs to be cut into pieces, and other steps are not changed, so that the carbonization product of the agricultural mulching film and carbon black is obtained.
The carbonized product was prepared as shown in (a) of fig. 2. The product appeared carbon black, solid and light, indicating that the mixture of agricultural mulch and carbon black had been carbonized completely under this condition, with a carbon material yield of 51.5 wt%.
Example 8
The raw materials used in the embodiment 1 are changed into the plastic garbage bags for daily use from linear low density polyethylene, the plastic garbage bags need to be cut into pieces, and other steps are not changed, so that the carbonized product of the plastic garbage bags and the carbon black is obtained.
The carbonized product prepared is shown in fig. 2 (b). The product was charcoal black, solid and light, indicating that the mixture of plastic trash bags and carbon black had carbonized completely under this condition, with a carbon material yield of 54.0 wt%.
Example 9
The carbonization temperature in the above example 1 was changed from 330 ℃ to 420 ℃, the mass of carbon black was changed from 0.20g to 0.05g, and the other steps were not changed to obtain a carbonized product of linear low density polyethylene and carbon black.
The carbonized product prepared is shown in (c) of fig. 2. The product appeared to be carbon black, solid and light, indicating that the mixture of linear low density polyethylene and carbon black had carbonized completely under the conditions and the yield of carbon material was 18.8 wt%.
Comparative example 1
(1) 1g of linear low density polyethylene was weighed into a crucible.
(2) The crucible with the sample is placed in a muffle furnace, the muffle furnace is set to keep the temperature at 150 ℃ for 1min at a heating rate of 5 ℃/min, the temperature is kept at 200 ℃ for 1min, the temperature is raised to a carbonization temperature of 390 ℃, and the temperature is kept at the temperature for 30 min.
(3) After the crucible was naturally cooled, the carbonized product was taken out and weighed to have a mass of about 0.29 g.
The obtained carbonized product is shown in fig. 2 (d). The product appeared viscous and fluid, adhering to the crucible wall, indicating that the linear low density polyethylene itself was not fully carbonized at 390 ℃.
Comparative example 2
The carbonization temperature used in comparative example 1 was changed from 390 ℃ to 420 ℃ and the other steps were not changed. The obtained carbonized product is shown in fig. 2 (e). The product appeared viscous and fluid, adhered to the crucible wall, and decomposed largely, indicating that the linear low density polyethylene itself was not carbonized completely at 420 ℃ and degraded largely, with a residue of only 0.33 wt%.
Comparative example 3
The carbonization temperature used in comparative example 1 was changed from 390 ℃ to 360 ℃, and 0.05g of carbon black was added without changing the other steps. The obtained carbonized product is shown in (f) of fig. 2. The product appeared to be a carbon black with lumps at the bottom and was partially sticky, indicating that the linear low density polyethylene and carbon black were not carbonized to completion under this condition.
Test examples
X-ray diffraction testing.
The carbonized products of the linear low density polyethylenes prepared in the above examples 1, 9 and 3 and the inorganic carbon were characterized in their crystal structures by X-ray diffraction, and the results are shown in fig. 3. It is apparent from the figure that the carbonized products of example 1 and example 9 have two diffraction characteristic peaks at the positions of 24 ° and 43 °, corresponding to the (002) and (101) crystal planes, respectively, which indicates that the materials have amorphous carbon and partially graphitized characteristics, indicating that the prepared co-carbonized products have standard carbon material crystal structures. While the carbonized product of comparative example 3 had characteristic diffraction peaks of the residual linear low density polyethylene, indicating that the linear low density polyethylene was not completely carbonized.
The carbonized products prepared in the above examples 7 and 8 were combined with polyolefin raw plastic articles, and their crystal structures were characterized by X-ray diffraction, and the results of example 7 are shown in fig. 4 and the results of example 8 are shown in fig. 5. The X-ray diffraction pattern of the corresponding raw sample showed characteristic peaks of polyethylene as its main component, while the carbonized products of examples 7 and 8 had two diffraction characteristic peaks at the positions of 24 ° and 43 °, corresponding to (002) and (101) crystal planes, respectively, indicating that the carbonized product of polyolefin had amorphous carbon and partially graphitized characteristics, indicating that the prepared co-carbonized product had a standard carbon material crystal structure.
2. Scanning electron microscope testing
Scanning electron micrographs of the carbonized product of linear low density polyethylene and inorganic carbon in example 1 are shown in FIGS. 6 to 7, and those in example 3 are shown in FIG. 8. It can be seen that the surface micro-morphology of the carbonized product using carbon black as the catalyst mainly presents spherical particles, and part of the spherical carbon particles are adhered together in the carbonized product and agglomerated into a mass shape; the carbonized product with carbon nanotube as catalyst has carbon nanotube structure.
Raman spectrum test.
The Raman spectrum of the carbonized product of linear low density polyethylene and carbon black catalyst in example 1 is shown in fig. 9. D peak (1350 cm) peculiar to carbon material in figure-1) G peak (1582 cm)-1) And 2D Peak (2800 cm)-1) It was confirmed again that the linear low density polyethylene was completely carbonized at 330 ℃ in the presence of a carbon black catalyst, and the characteristic peak of the linear low density polyethylene was not present.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for preparing a carbon material by promoting polyolefin carbonization by using inorganic carbon is characterized by comprising the following steps:
(1) uniformly mixing polyolefin and an inorganic carbon material to obtain a mixture;
(2) and heating the mixture to a preset carbonization temperature for carbonization to obtain the carbon material.
2. The method as claimed in claim 1, wherein the carbonization temperature is 230-420 ℃ and the carbonization time is 5-120 min.
3. The method as claimed in claim 2, wherein the carbonization temperature is 250 ℃ and 390 ℃, and the carbonization time is 15-45 min.
4. The method for preparing as claimed in claim 1 or 2 or 3, wherein the step (2) comprises the sub-steps of:
(2-1) heating the mixture to 100-180 ℃, and preserving the heat for 1-10min to enable the polyolefin to be melted and coated on the surface of the inorganic carbon material;
(2-2) continuously heating to the temperature of 180 ℃ and 230 ℃, and preserving the heat for 1-10min to enable the polyolefin to react with oxygen in the air to generate oxygen-containing functional groups;
and (2-3) continuously heating to a set carbonization temperature, carbonizing for a period of time, and cooling to obtain the carbon material.
5. The method according to claim 4, wherein the heating rate is 2 ℃/min to 40 ℃/min, preferably 5 ℃/min to 20 ℃/min.
6. The production method according to claim 4, wherein the mass ratio of the inorganic carbon material to the polyolefin is (5-50): (50-95).
7. The method of claim 1, wherein the mixing in step (1) is ball milling.
8. The method according to claim 1, wherein the inorganic carbon material is one or more selected from bamboo carbon black, carbon nanotube, activated carbon, carbon nanofiber and carbon fiber.
9. The method according to claim 1, wherein the polyolefin is one or more selected from the group consisting of low density polyethylene, linear low density polyethylene, high density polyethylene, isotactic polypropylene, atactic polypropylene, syndiotactic polypropylene, polybutene, polyisobutylene, polypentene, polyhexene, polyoctene, ethylene-vinyl acetate copolymer, ethylene-acrylic acid or acrylate copolymer, poly 4-methyl-1-pentene, and polyolefin-based plastic products.
10. A carbon material produced by the production method according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110104197.3A CN112830473B (en) | 2021-01-26 | 2021-01-26 | Carbon material prepared by promoting polyolefin carbonization by using inorganic carbon and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110104197.3A CN112830473B (en) | 2021-01-26 | 2021-01-26 | Carbon material prepared by promoting polyolefin carbonization by using inorganic carbon and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112830473A true CN112830473A (en) | 2021-05-25 |
| CN112830473B CN112830473B (en) | 2022-05-24 |
Family
ID=75931801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110104197.3A Active CN112830473B (en) | 2021-01-26 | 2021-01-26 | Carbon material prepared by promoting polyolefin carbonization by using inorganic carbon and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112830473B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855305A (en) * | 2022-04-25 | 2022-08-05 | 延边大学 | Preparation method of carbon nanofiber material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070292699A1 (en) * | 2006-03-06 | 2007-12-20 | National Institute Of Aerospace Associates | Depositing nanometer-sized particles of metals onto carbon allotropes |
| CN103265008A (en) * | 2013-05-21 | 2013-08-28 | 大连理工大学 | Nitrogen-doped porous carbon and preparation method thereof |
| CN110817840A (en) * | 2019-12-20 | 2020-02-21 | 华中科技大学 | Method for carbonizing polyolefin |
-
2021
- 2021-01-26 CN CN202110104197.3A patent/CN112830473B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070292699A1 (en) * | 2006-03-06 | 2007-12-20 | National Institute Of Aerospace Associates | Depositing nanometer-sized particles of metals onto carbon allotropes |
| CN103265008A (en) * | 2013-05-21 | 2013-08-28 | 大连理工大学 | Nitrogen-doped porous carbon and preparation method thereof |
| CN110817840A (en) * | 2019-12-20 | 2020-02-21 | 华中科技大学 | Method for carbonizing polyolefin |
Non-Patent Citations (1)
| Title |
|---|
| JIANG GONG ET AL.: "Catalytic carbonization of polypropylene by the combined catalysis of activated carbon with Ni2O3into carbon nanotubes and its mechanism", 《APPLIED CATALYSIS A: GENERAL》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855305A (en) * | 2022-04-25 | 2022-08-05 | 延边大学 | Preparation method of carbon nanofiber material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112830473B (en) | 2022-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101613100B (en) | Micro-wave preparation method for biomass-based graphitized carbon and carbon-carbon composite material | |
| CN101811689A (en) | Three-dimensional network carbon nanofiber and preparation method and application thereof | |
| CN108855195A (en) | A kind of carbon doping amorphous carbon nitride photochemical catalyst and preparation method | |
| CN112830473B (en) | Carbon material prepared by promoting polyolefin carbonization by using inorganic carbon and preparation method | |
| CN110589827A (en) | Method for preparing biomass carbon aerogel by double activation method and application thereof | |
| CN115231547B (en) | Preparation method of hypha-based biomass hard carbon negative electrode material | |
| CN109704307A (en) | A kind of preparation and its application of the sulfur doping porous carbon based on sterculia seed slag | |
| CN112624083A (en) | Preparation method and application of modified lignin-based hard carbon microspheres | |
| WO2018227842A1 (en) | Catalyst used for producing aromatic-rich biofuel, and method for preparing same | |
| Feng et al. | Biomass derived diverse carbon nanostructure for electrocatalysis, energy conversion and storage | |
| US10532932B2 (en) | Low temperature carbonizable material | |
| Huang et al. | Renewable waste biomass-derived carbon materials for energy storage | |
| CN111082034B (en) | Preparation of tin/tin phosphide/carbon composite material of alkali metal ion battery cathode | |
| Lower et al. | Catalytic Graphitization of Biocarbon for Lithium‐Ion Anodes: A Minireview | |
| CN116675215B (en) | Preparation method and application of soft carbon/hard carbon composite material | |
| CN110817840B (en) | Method for carbonizing polyolefin | |
| CN111908443A (en) | Preparation method of self-doped porous carbon | |
| CN109273272B (en) | Preparation method of sulfur-doped carbon micro-tube, sulfur-doped carbon micro-tube and application of sulfur-doped carbon micro-tube | |
| CN111359602B (en) | Solid acid catalyst, foam structure carbon material and preparation method | |
| CN113636538A (en) | Mesocarbon microbeads and preparation method thereof | |
| CN101830457B (en) | Method for preparing carbon microspheres and application of heteropolyacid in carbon microsphere preparation and graphitization | |
| CN108246281B (en) | Carbon fiber @ molybdenum dioxide nanoparticle core-shell composite structure and preparation method thereof | |
| CN116081602B (en) | Method for preparing spiral carbon nano tube by using waste polyolefin | |
| CN111892035B (en) | Mass production method of long-range ordered mesoporous carbon material with high nitrogen content and ultrahigh specific surface area | |
| CN116573632B (en) | Asphalt-based hard carbon, preparation method and application thereof in sodium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |