CN110976896A - Preparation method of carbon nanohorn metal composite material - Google Patents
Preparation method of carbon nanohorn metal composite material Download PDFInfo
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- CN110976896A CN110976896A CN201911297288.2A CN201911297288A CN110976896A CN 110976896 A CN110976896 A CN 110976896A CN 201911297288 A CN201911297288 A CN 201911297288A CN 110976896 A CN110976896 A CN 110976896A
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- composite material
- carbon nanohorn
- metal composite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/12—Making metallic powder or suspensions thereof using physical processes starting from gaseous material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- 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
- C01B32/18—Nanoonions; Nanoscrolls; Nanohorns; Nanocones; Nanowalls
Abstract
The invention relates to a preparation method of a carbon nanohorn metal composite material, which is characterized in that a graphite arc method is adopted to prepare the carbon nanohorn metal composite material, wherein two graphite rods are respectively used as an anode and a cathode, and a conductive material is wound or embedded on the outer surfaces of the graphite rods of the anode; the conductive material is a composite film or a metal foil or a metal wire consisting of one or more metals; the conductive material is one or more of copper, tin, molybdenum, iron, aluminum, nickel, chromium, cobalt, zinc, silver and gold; the invention provides a method for preparing a carbon nanohorn metal composite material by adopting a metal anode method, which is different from the method for preparing the carbon nanohorn metal composite material by adopting a metal anode method in the prior art, and the conductive material is evaporated simultaneously when a graphite rod of an anode is evaporated, so that conductive material particles can be tightly combined with carbon nanohorns.
Description
Technical Field
The invention belongs to the technical field of nano material preparation, and particularly relates to a preparation method of a carbon nanohorn metal composite material.
Background
The metal-based composite material is a new material formed by taking metal or alloy as a matrix and adding a reinforcement through a certain preparation process technology, so that the new material with excellent characteristics which are not possessed by a single material is obtained.
Carbon nanohorns were discovered in 1999 by the japanese scientist fan orange (Iijima) who discovered carbon nanotubes, single-walled carbon nanohorns (SWCNHs) are a novel nanomaterial similar to single-walled carbon nanotubes (SWCNTs). It is a large cone structure expanded by a hexagonal graphite structure, with the cone apex defined by a pentagonal ring.
The carbon nanohorn metal composite material is a novel nano material, and the preparation method is generally to prepare the carbon nanohorn metal composite material by utilizing a graphite electrode and a metal electrode and adopting an arc method.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a preparation method of a carbon nanohorn metal composite material, which realizes the simultaneous evaporation of graphite and metal by arranging a thin conductive material layer on a graphite electrode.
The technical scheme of the invention is as follows:
a method for preparing a carbon nanohorn metal composite material adopts a graphite arc method to prepare the carbon nanohorn metal composite material, wherein two graphite rods are respectively used as an anode and a cathode, and a conductive material is wound or embedded on the outer surfaces of the graphite rods of the anode.
Further, the conductive material is a composite film or a metal foil or a metal wire composed of one or more metals.
Further, the conductive material is one or more of copper, tin, molybdenum, iron, aluminum, nickel, chromium, cobalt, zinc, silver and gold.
Further, the thickness or diameter of the conductive material is 1-1000 μm.
Further, the anode and the cathode are oppositely placed in the liquid nitrogen, liquid argon, argon gas atmosphere or nitrogen gas atmosphere, high-voltage current of 10-1000 amperes is introduced to carry out direct current arc discharge, and the high-purity carbon nanohorn metal composite material is generated in an arc area.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a method for preparing a carbon nanohorn metal composite material by adopting a metal anode method, which is different from the method for preparing the carbon nanohorn metal composite material by adopting a metal anode method in the prior art, and the conductive material is evaporated simultaneously when a graphite rod of an anode is evaporated, so that conductive material particles can be tightly combined with carbon nanohorns; the adopted conductive material has small thickness or diameter and is uniformly distributed on the outer surface of the anode graphite rod, so that the conductive material is easy to be fully evaporated at the high temperature of the electric arc, the utilization rate of the conductive material is increased, the molten particle rate of the conductive material is reduced, the yield of the carbon nanohorn metal composite material is improved, and the method is simple, good in reproducibility and easy to industrialize.
Drawings
Fig. 1 is a microscopic enlarged view of the carbon nanohorn metal composite obtained in example 2 of the present invention.
Fig. 2 is a microscopic enlarged view of the carbon nanohorn metal composite obtained in example 3 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A method for preparing a carbon nanohorn metal composite material adopts a graphite arc method to prepare the carbon nanohorn metal composite material, wherein two graphite rods are respectively used as an anode and a cathode, and a conductive material is wound or embedded on the outer surfaces of the graphite rods of the anode.
Further, the conductive material is a composite film or a metal foil or a metal wire composed of one or more metals.
Further, the conductive material is one or more of copper, tin, molybdenum, iron, aluminum, nickel, chromium, cobalt, zinc, silver and gold.
Further, the thickness or diameter of the conductive material is 1-1000 μm.
Further, the anode and the cathode are oppositely placed in the liquid nitrogen, liquid argon, argon gas atmosphere or nitrogen gas atmosphere, high-voltage current of 10-1000 amperes is introduced to carry out direct current arc discharge, and the high-purity carbon nanohorn metal composite material is generated in an arc area.
Example 2
This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.
In this embodiment, a copper wire is used as a conductive material.
The diameter of the copper wire is 500 mu m, the copper wire is tightly wound on the graphite rod of the anode, the anode graphite rod and the cathode graphite rod are oppositely placed in liquid nitrogen, 400 amperes of high-voltage current is introduced for direct current arc discharge, and the high-purity (the purity is more than 99.5%) carbon nanohorn copper composite material is generated in an arc area.
The crystal structure of the obtained carbon nanohorn metal composite material is shown in fig. 1, and in fig. 1, it can be seen that copper crystals and carbon nanohorns form eutectic crystals, and the carbon nanohorn metal composite material has good electrical conductivity as deduced from the crystal structures of the copper crystals and the carbon nanohorns.
Example 3
This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.
In this embodiment, iron wires are used as the conductive material.
The diameter of the iron wire is 800 μm, one circle of the iron wire is tightly wound on one circle of the graphite rod of the anode, the anode and the cathode are oppositely placed in liquid nitrogen, 600 amperes of high-voltage current is introduced for direct current arc discharge, and the generated product is directly the carbon nanohorn iron composite material with high purity (the purity is more than 99.5%).
The crystal structure of the obtained carbon nanohorn iron composite material is shown in fig. 2, and in fig. 2, iron crystals and carbon nanohorns also form eutectic crystals.
Example 4
This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.
In this embodiment, tin foil or tin wire is used as the conductive material.
The thickness of tin foil or the diameter of tin wire is 500-1000 μm, a single layer is tightly wound on the periphery of the graphite rod of the anode, the anode and the cathode are oppositely placed in liquid nitrogen, high-voltage current of 200 amperes is introduced for direct current arc discharge, and the generated product is directly a high-purity (the purity is more than 99.5%) carbon nanohorn tin composite material.
Further, the carbon nanohorn tin oxide composite material is oxidized for 1-3h in the air environment at the temperature of 300-600 ℃ to obtain the carbon nanohorn tin oxide composite material, and the obtained carbon nanohorn tin oxide composite material can be used as a battery cathode material.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. A method for preparing a carbon nanohorn metal composite material by adopting a graphite arc method is characterized in that: the two graphite rods are respectively used as an anode and a cathode, wherein the outer surface of the graphite rod of the anode is wound or embedded with a conductive material.
2. The method for producing a carbon nanohorn metal composite material as claimed in claim 1, wherein: the conductive material is a composite film or metal foil or metal wire consisting of one or more metals.
3. The method for producing a carbon nanohorn metal composite material as claimed in claim 1, wherein: the conductive material is one or more of copper, tin, molybdenum, iron, aluminum, nickel, chromium, cobalt, zinc, silver and gold.
4. The method for producing a carbon nanohorn metal composite material as claimed in claim 1, wherein: the thickness or diameter of the conductive material is 1-1000 μm.
5. The method for producing a carbon nanohorn metal composite material as claimed in claim 1, wherein: the anode and the cathode are oppositely placed in the liquid nitrogen, liquid argon, argon gas atmosphere or nitrogen gas atmosphere, high-voltage current of 10-1000 amperes is introduced to carry out direct current arc discharge, and the high-purity carbon nanohorn metal composite material is generated in an arc area.
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| CN201911297288.2A CN110976896A (en) | 2019-12-16 | 2019-12-16 | Preparation method of carbon nanohorn metal composite material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11827518B1 (en) | 2023-04-27 | 2023-11-28 | Kunming University Of Science And Technology | Carbon nanohorns composite material with microwave absorption and tunable absorption bands and method for preparing the same |
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| CN1478593A (en) * | 2002-08-28 | 2004-03-03 | 财团法人工业技术研究院 | Manufacturing method of packed magnetic metal nanometer carbon ball |
| JP2005170739A (en) * | 2003-12-11 | 2005-06-30 | New Industry Research Organization | Method and apparatus for producing carbon nanohorn |
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2019
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| JP2005170739A (en) * | 2003-12-11 | 2005-06-30 | New Industry Research Organization | Method and apparatus for producing carbon nanohorn |
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| US11827518B1 (en) | 2023-04-27 | 2023-11-28 | Kunming University Of Science And Technology | Carbon nanohorns composite material with microwave absorption and tunable absorption bands and method for preparing the same |
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