CN115744880A - Method for preparing carbon nano tube based on bifidobacterium lactis - Google Patents
Method for preparing carbon nano tube based on bifidobacterium lactis Download PDFInfo
- Publication number
- CN115744880A CN115744880A CN202211435614.3A CN202211435614A CN115744880A CN 115744880 A CN115744880 A CN 115744880A CN 202211435614 A CN202211435614 A CN 202211435614A CN 115744880 A CN115744880 A CN 115744880A
- Authority
- CN
- China
- Prior art keywords
- bifidobacterium lactis
- carbon nanotubes
- carbon nano
- nano tube
- preparing carbon
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 63
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 37
- 241000901050 Bifidobacterium animalis subsp. lactis Species 0.000 title claims abstract description 28
- 229940009289 bifidobacterium lactis Drugs 0.000 title claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 claims description 5
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 claims description 5
- 125000003071 maltose group Chemical group 0.000 claims description 2
- 238000011534 incubation Methods 0.000 claims 1
- 239000008176 lyophilized powder Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 8
- 238000002360 preparation method Methods 0.000 abstract description 7
- 238000000137 annealing Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 7
- 238000005087 graphitization Methods 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 6
- 230000007547 defect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 125000004433 nitrogen atom Chemical group N* 0.000 description 5
- 239000002028 Biomass Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000001237 Raman spectrum Methods 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 229910003481 amorphous carbon Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000001241 arc-discharge method Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000840 electrochemical analysis Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010183 spectrum analysis Methods 0.000 description 2
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- MSFSPUZXLOGKHJ-UHFFFAOYSA-N Muraminsaeure Natural products OC(=O)C(C)OC1C(N)C(O)OC(CO)C1O MSFSPUZXLOGKHJ-UHFFFAOYSA-N 0.000 description 1
- 108010013639 Peptidoglycan Proteins 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- -1 appearance Chemical compound 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000012018 catalyst precursor Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910003472 fullerene Inorganic materials 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000002048 multi walled nanotube Substances 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 210000003463 organelle Anatomy 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 210000001236 prokaryotic cell Anatomy 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002109 single walled nanotube Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 238000004832 voltammetry Methods 0.000 description 1
Images
Abstract
The invention provides a method for preparing a carbon nano tube based on bifidobacterium lactis. The method comprises the following steps: putting the bifidobacterium lactis freeze-dried powder matched with the carrier into a tube furnace, heating to 750-900 ℃ at a preset heating rate under protective gas, preserving heat for a preset time, and naturally cooling to prepare the carbon nano tube. The invention is prepared by a one-step annealing method, has simple process and low cost, replaces the traditional complex and high-cost preparation process, and is more suitable for large-scale commercial application.
Description
Technical Field
The invention relates to the technical field of carbon nanotube preparation, in particular to a method for preparing a carbon nanotube based on bifidobacterium lactis.
Background
Carbon nanotubes, also known as buckytubes, are one-dimensional quantum materials with a special structure (radial dimension is nanometer magnitude, axial dimension is micrometer magnitude, both ends of the tube are basically sealed). The current methods for preparing carbon nanotubes mainly include arc discharge methods, laser evaporation methods and chemical vapor deposition methods.
The arc discharge method has the advantages of high carbon nanotube production rate, simple process parameter setting required in the experimental process, straight carbon nanotube obtained by growth, good crystallinity and the like, but has the following defects: the temperature requirement of the growing carbon nano tube is high, the equipment required for growing the carbon nano tube is very complex, and the grown carbon nano tube has obvious defects; the catalyst is easy to sinter with the by-products generated in the growth process, such as amorphous carbon, graphite particles, fullerene and other impurities, and is not beneficial to separation and purification; the preparation cost is high, and the large-scale and industrial production is not facilitated.
The laser evaporation method is to place the target material made of metal catalyst/graphite powder in a quartz tube reactor, and the quartz tube is placed in a horizontal heating furnace. When the furnace temperature was raised to 1473K, inert gas was charged into the tube and a laser was focused on the graphite target. The graphite target generates gaseous carbon under the laser irradiation, and the gaseous carbon grows single-walled carbon nanotubes under the action of the catalyst. The yield of the carbon nano tube is increased along with the shortening of the time interval of the laser pulse, and the tube diameter of the carbon nano tube can also be controlled by adjusting the power of the laser pulse. However, there are disadvantages in that the purity of the prepared carbon nanotubes is low, the production efficiency is low, the product is easily tangled, and the production cost is expensive.
The chemical vapor deposition method has the advantages of low cost, high purity, large yield, easy control of experimental conditions and the like, and the size of the carbon nano tube is controlled by the size of catalyst particles, so the production cost is low and the applicability is strong. Is the most promising method for preparing high-quality carbon nanotubes in large quantities. Therefore, this method has received high attention and is widely used. However, the carbon nanotubes prepared by the chemical vapor deposition method also have the disadvantages of long length, non-uniform diameter and low graphitization degree.
In addition to the above methods, shijian Hua team uses some natural biomass as a catalyst precursor, natural gas as a carbon source, and a CVD process to prepare carbon nanotubes. Most of the methods can obtain carbon nanotube arrays with uniform tube diameter distribution, but the natural substances need to be treated for not less than six hours before firing. Natural gas as a carbon source does not fundamentally solve the problem of carbon nanotube production. However, the method has a disadvantage of a long operation time, and the problem is not solved from the aspect of carbon source.
The thermal cracking-catalytic modification method (two-stage method) adopted by Lanmeichen team can obtain high-value product carbon nano tube while processing waste plastics, and has the characteristics of cheap and easily available raw materials, economy and environmental protection, but the existing reactor can not process waste plastics in large batch and continuously produce carbon nano tube; waste plastics generated in life are various in types and complex in composition, and can have great influence on the appearance and quality of the carbon nano tube, so that the practical application of the method is hindered; the excessive interaction between the active components of the catalyst and the carrier can cause the sintering agglomeration of the catalyst, so that the diameter of the carbon nano tube is too large, and the weak interaction can influence the catalytic effect to reduce the yield of the carbon nano tube; the carbon nano tube prepared by cracking the plastic is not practically applied because of difficult separation from the catalyst, other carbon impurities contained in the product and the like.
Disclosure of Invention
In view of the above-mentioned technical problems, a method for preparing carbon nanotubes based on bifidobacterium lactis is provided. The technical means adopted by the invention are as follows:
a preparation method of carbon nano-tubes based on bifidobacterium lactis comprises the following steps:
putting the bifidobacterium lactis freeze-dried powder matched with the carrier into a tube furnace, heating to 750-900 ℃ at a preset heating rate under protective gas, preserving heat for a preset time, and naturally cooling to prepare the carbon nano tube.
Further, the carrier is maltose.
Further, the mass of the bifidobacterium lactis freeze-dried powder is 10g.
Further, the maximum temperature of the temperature rise was 850 ℃.
Further, the heating rate is 9.5-10.5 ℃/min.
Further, the heat preservation time is 2-2.5 h.
Further, the protective gas is nitrogen.
Further, the gas flow rate is 55-60 ml/min.
The invention has the following advantages:
1. the invention uses the bifidobacterium lactis as a precursor for preparing the multi-wall carbon nano tube for the first time and is applied to material science. Based on the intrinsic characteristics of the bifidobacterium lactis as prokaryotic cells (no complex organelles), the method provides a basis for a hollow structure. The bifidobacterium lactis cell wall is composed of hexagonal cyclic peptidoglycan (similar to a graphene structure), and provides a basis for graphitization. The prepared bifidobacterium lactis derived carbon nano tube has rich intrinsic defects and nitrogen atom doping, and can effectively improve the electrocatalytic activity.
2. The bifidobacterium lactis is taken as a biomass material, accords with the development trend of environmental protection, and has lower cost and wide source.
3. The preparation method has the advantages of simple process and low cost by adopting a one-step annealing method, replaces the traditional complex and high-cost preparation process, and is more suitable for large-scale commercial application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a scanning electron microscope image of annealed Bifidobacterium lactis carbon nanotubes of the present invention, and (a) to (d) are respectively 100nm, 400nm, 1 μm and 600 nm.
FIG. 2 is a high resolution-projection electron microscope test chart of the present invention.
FIG. 3 is an X-ray diffraction test chart of the present invention.
FIG. 4 is a Raman spectrum test chart of the present invention.
FIG. 5 is an X-ray photoelectron spectroscopy (XPS) of the present invention, wherein (a) (B) are X-ray photoelectron spectroscopy (XPS) of conventional NS-850 and B-850 prepared according to the present invention, respectively.
FIG. 6 is a diagram of the energy spectrum analysis of the present invention, in which a) is a diagram of the analysis of the composition and content of carbon nanotubes prepared by a normal route, and b) is a diagram of the analysis of the composition and content of biomass carbon nanotubes prepared by the present invention.
FIG. 7 is an electrochemical test chart of the present invention, wherein (a) is a cyclic voltammogram test; and (b) linear voltammetry scanning test.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The embodiment provides a method for preparing carbon nanotubes based on bifidobacterium lactis, which comprises the following steps:
and (3) putting the bifidobacterium lactis freeze-dried powder into a tube furnace, heating to 750-900 ℃ at a preset heating rate under protective gas, preserving heat for a preset time, and naturally cooling to obtain the carbon nano tube. In this embodiment, maltose is used as the carrier, which is beneficial for the fungi to maintain morphological and structural features. Through a plurality of experiments, only maltose can realize the function in the invention. During the heating process, a proper amount of maltose is placed first, and then the bifidobacterium lactis freeze-dried powder is placed.
The highest annealing temperature, the heating rate, the heat preservation time and the cooling rate in the annealing process have important influences on the characteristics of the carbon nano tube such as appearance, intrinsic defects, heteroatom doping and the like, and further the physical, chemical, mechanical, thermodynamic and other properties of the carbon nano tube can be influenced. The specific influence of the four factors on the performance is one of the difficulties in preparing efficient CNTs. Therefore, the invention obtains that the heating rate is 9.5-10.5 ℃/min, the heat preservation time is 2-2.5 h, the gas flow rate is 55-60 ml/min as an optional range through a plurality of experiments, and the optimal annealing maximum temperature in the preparation process is 850 ℃. The heating rate was 10 ℃/min. The heat preservation time is 2h. The protective gas is nitrogen, and the nitrogen is beneficial to doping nitrogen atoms of the product, so that the electrocatalytic activity can be effectively improved. The gas flow rate was 60ml/min.
As shown in FIG. 1, which is a picture obtained after the field emission scanning electron microscope test, it can be seen from the graph (a) that the carbon nanotubes are successfully prepared, and the diameter thereof is about 30 to 50nm. In the graphs (b), (c) and (d), it is clear that the carbon nanotubes are uniform.
Fig. 2 is a picture obtained after the high resolution-projection electron microscope test, and the observation of the hollow structure proves that the carbon nanotube is formed, the fracture is sealed, the total length is 30.7nm, the clear lattice fringes are known, the graphitization degree is higher, and the high conductivity is shown.
FIG. 3 is an X-ray diffraction test chart of the present invention. XRD characterization shows that the prepared carbon nanotube material has (002) and (100) crystal faces, is amorphous carbon and further proves to be partially graphitized. Meanwhile, the prepared carbon nanotube has a negative shift of (002) peak position compared with NS-850, indicating that the degree of graphitization is weak, which may cause a change in lattice spacing due to heteroatom doping and defects.
FIG. 4 is a Raman spectrum test chart of the present invention. Raman tests show that the carbon nano-tubes have D and G peaks, and the prepared carbon nano-tubes have graphitization and defect sites. The carbon nanotubes produced were more graphitized than NS-850, which resulted from the graphitization of the carbon nanotubes, further demonstrating the presence of carbon nanotubes. Furthermore, as the annealing temperature increased, the value of ID/IG decreased, indicating that graphitization was promoted.
FIG. 5 is a test chart of X-ray photoelectron spectroscopy according to the present invention. Compared with NS-850, CNTs prepared contain nitrogen atom doping, which contributes to electrocatalytic activity.
FIG. 6 is a diagram of the spectral analysis of the present invention. Further tests show that the percentage and the distribution condition of nitrogen atoms are obtained, and the prepared biomass carbon nano tube has nitrogen atom doping and stronger electrocatalytic activity than a normal carbon nano tube.
FIG. 7 is a graph showing electrochemical tests of the present invention, which shows that CNTs prepared have corresponding ORR activity compared to NS-850, wherein B-850 has the highest activity, and the half-wave potential is only 16mV different from commercial 20% Pt/C.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A method for preparing carbon nanotubes based on Bifidobacterium lactis is characterized by comprising the following steps: and (3) putting the bifidobacterium lactis freeze-dried powder matched with the carrier into a tube furnace, heating to 750-900 ℃ at a preset heating rate under protective gas, preserving heat for a preset time, and naturally cooling to obtain the carbon nano tube.
2. The method for preparing carbon nanotubes based on Bifidobacterium lactis according to claim 1, wherein the carrier is maltose.
3. The method for preparing carbon nanotubes on the basis of bifidobacterium lactis as claimed in claim 1, wherein the mass of the bifidobacterium lactis lyophilized powder is 10g.
4. The method for preparing bifidobacterium lactis-based carbon nanotubes as claimed in claim 1, wherein the maximum temperature of the elevated temperature is 850 ℃.
5. The method for preparing carbon nanotubes based on Bifidobacterium lactis according to claim 1 or 4, wherein the temperature increase rate is 9.5 to 10.5 ℃/min.
6. The method for preparing carbon nanotubes based on Bifidobacterium lactis according to claim 5, wherein the incubation time is 2 to 2.5 hours.
7. The method for preparing carbon nanotubes based on bifidobacterium lactis according to claim 1, wherein the protective gas is nitrogen.
8. The method for preparing carbon nanotubes based on Bifidobacterium lactis according to claim 1 or 7, wherein the gas flow rate is 55 to 60ml/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211435614.3A CN115744880B (en) | 2022-11-16 | 2022-11-16 | Carbon nanotube preparation method based on bifidobacterium lactis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211435614.3A CN115744880B (en) | 2022-11-16 | 2022-11-16 | Carbon nanotube preparation method based on bifidobacterium lactis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115744880A true CN115744880A (en) | 2023-03-07 |
| CN115744880B CN115744880B (en) | 2024-01-26 |
Family
ID=85372049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211435614.3A Active CN115744880B (en) | 2022-11-16 | 2022-11-16 | Carbon nanotube preparation method based on bifidobacterium lactis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115744880B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140193323A1 (en) * | 2011-11-04 | 2014-07-10 | Cheil Industries Inc. | Double Wall Carbon Nanotubes and Method for Manufacturing Same |
| CN109097059A (en) * | 2018-07-24 | 2018-12-28 | 湘潭大学 | A kind of bacterial origin mesoporous carbon material and preparation method thereof and the application in heavy metal pollution water system or soil remediation |
| US20190270677A1 (en) * | 2016-07-22 | 2019-09-05 | The Regents Of The University Of Colorado, A Body Corporate | Filamentous organism-derived carbon-based materials, and methods of making and using same |
| US20200277193A1 (en) * | 2019-03-02 | 2020-09-03 | Qatar University | Carbon nanotubes decorated with carbon nanospheres |
| WO2022085771A1 (en) * | 2020-10-22 | 2022-04-28 | 株式会社Ｎｅｘｔコロイド分散凝集技術研究所 | Method for separating between metal-type carbon nanotube and semiconductor-type carbon nanotube and purifying said carbon nanotubes |
-
2022
- 2022-11-16 CN CN202211435614.3A patent/CN115744880B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140193323A1 (en) * | 2011-11-04 | 2014-07-10 | Cheil Industries Inc. | Double Wall Carbon Nanotubes and Method for Manufacturing Same |
| US20190270677A1 (en) * | 2016-07-22 | 2019-09-05 | The Regents Of The University Of Colorado, A Body Corporate | Filamentous organism-derived carbon-based materials, and methods of making and using same |
| CN109097059A (en) * | 2018-07-24 | 2018-12-28 | 湘潭大学 | A kind of bacterial origin mesoporous carbon material and preparation method thereof and the application in heavy metal pollution water system or soil remediation |
| US20200277193A1 (en) * | 2019-03-02 | 2020-09-03 | Qatar University | Carbon nanotubes decorated with carbon nanospheres |
| WO2022085771A1 (en) * | 2020-10-22 | 2022-04-28 | 株式会社Ｎｅｘｔコロイド分散凝集技術研究所 | Method for separating between metal-type carbon nanotube and semiconductor-type carbon nanotube and purifying said carbon nanotubes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115744880B (en) | 2024-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102182553B1 (en) | Method for manufacturing single atom catalyst supported on carbon carrier | |
| Kumar et al. | Carbon nanotube synthesis and growth mechanism | |
| Luo et al. | Solvothermal preparation of amorphous carbon nanotubes and Fe/C coaxial nanocables from sulfur, ferrocene, and benzene | |
| Arcaro et al. | MWCNTs produced by electrolysis of molten carbonate: Characteristics of the cathodic products grown on galvanized steel and nickel chrome electrodes | |
| Wu et al. | Well-aligned SiC nanoneedle arrays for excellent field emitters | |
| CN110255626B (en) | Method for preparing surface-active onion-shaped carbon nanospheres based on vapor deposition | |
| JPH11116218A (en) | Production of single layered nanotube | |
| Ma et al. | Self-assembly of nitrogen-doped graphene-wrapped carbon nanoparticles as an efficient electrocatalyst for oxygen reduction reaction | |
| Kieush | COAL PYROLYSIS PRODUCTS UTILISATION FOR SYNTHESIS OF CARBON NANOTUBES. | |
| JP4693463B2 (en) | Catalyst for producing double-walled carbon nanotubes and method for producing double-walled carbon nanotubes using the same | |
| Jou et al. | Preparation of carbon nanotubes from vacuum pyrolysis of polycarbosilane | |
| Kumar et al. | Gigas Growth of Carbon Nanotubes. | |
| CN112978715A (en) | Carbon nano tube using alcohol solvent as carbon source and preparation method thereof | |
| Krishnia et al. | As-pyrolyzed sugarcane bagasse possessing exotic field emission properties | |
| CN115744880B (en) | Carbon nanotube preparation method based on bifidobacterium lactis | |
| KR101679693B1 (en) | Method for preparing carbon nanotube and hybrid carbon nanotube composite | |
| Srivastava et al. | Effect of hydrogen plasma treatment on the growth and microstructures of multiwalled carbon nanotubes | |
| Karmakar et al. | A new approach towards improving the quality and yield of arc-generated carbon nanotubes | |
| CN103241725A (en) | Method for preparing carbon nano tube by taking coke as raw material and prepared carbon nano tube | |
| KR101437557B1 (en) | Graphitic carbon coated semiconducting photocatalyst and fabricating same | |
| Cao et al. | Graphdiyne/copper sulfide heterostructure for active conversion of CO 2 to formic acid | |
| JP4238024B2 (en) | Method for producing composite carbonaceous substrate | |
| Ghosh et al. | Bamboo-shaped aligned CNx nanotubes synthesized using single feedstock at different temperatures and study of their field electron emission | |
| Susi et al. | CVD synthesis of hierarchical 3D MWCNT/carbon-fiber nanostructures | |
| Srivastava et al. | Carbon Nanowalls: A potential 2-Dimensional material for field emission and energy-related applications |
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 |