CN1712349A - Arc synthesis of single-wall carbon nanometer tubes - Google Patents
Arc synthesis of single-wall carbon nanometer tubes Download PDFInfo
- Publication number
- CN1712349A CN1712349A CNA2004100196244A CN200410019624A CN1712349A CN 1712349 A CN1712349 A CN 1712349A CN A2004100196244 A CNA2004100196244 A CN A2004100196244A CN 200410019624 A CN200410019624 A CN 200410019624A CN 1712349 A CN1712349 A CN 1712349A
- Authority
- CN
- China
- Prior art keywords
- carbon nanotube
- walled carbon
- single walled
- nickel
- mixture
- 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
Abstract
An arc synthesis of single-wall carbon nanometer tube with diameter 0.8-2.0nm uses cathode and anode discharge of DC arc under inert gas pressure. The cathode is graphite materials, the anode is consumption electrode consisting of mixture from carbon material and catalyst, the catalyst consists of one or several in (a), one or several in (b), mixture of one or several in (a) and one or several in (b), or mixture of one or several in (a) or (b) and one or several in metal iron, nickel, molybdenum, chromium or iridium, oxide of transition metal in (a) or rare earth element, and organic or inorganic salt of transition metal in (b) or rare earth element. It achieves low cost and good quality.
Description
Technical field
The present invention relates to the technology of preparing of carbon nanotube (CNTs), the electric arc synthetic method of a kind of Single Walled Carbon Nanotube (SWNTs) is provided especially, it is a kind of method of arc-over mass production Single Walled Carbon Nanotube of novel low-cost.
Background technology
CNT (carbon nano-tube) has caused the extensive concern and the very big interest of various countries scholar and industry member in worldwide since 1991 are found.Experiment has proved that CNT (carbon nano-tube) has high intensity and Young's modulus, is called as super fiber, can be used for the enhancing body of advanced composite materials; CNT (carbon nano-tube) has unique electronics band structure, is ideal One-dimensional Quantum lead; In addition, CNT (carbon nano-tube) also has potentiality as emtting electrode, absorbing material, hydrogen storage material etc.Exactly because have numerous excellent properties and wide application prospect, CNT (carbon nano-tube) has evoked the very big research enthusiasm of scientists.Prepare highly purified CNT (carbon nano-tube) in a large number and be to its structure observation, performance test and the prerequisite further studying and use, so the preparation of CNT (carbon nano-tube) is most important.In recent years, the preparation of CNT (carbon nano-tube) is among the development and progress always.The preparation method of Single Walled Carbon Nanotube (SWNTs) then mainly contains arc process, laser method and chemical Vapor deposition process etc.
Traditional arc process is in the reaction chamber that is filled with the certain pressure rare gas element, at a pure Graphite Electrodes as negative electrode, the Graphite Electrodes of catalyst filling is an anode, cause that by high frequency or contact electric arc produces high temperature, the evaporation graphite anode, carbon atom carries out the structural rearrangement deposition under the effect of catalyzer, can make Single Walled Carbon Nanotube.
Japanese scholar Iijima in 1993 (Nature, 1993,363, be exactly to have obtained Single Walled Carbon Nanotube in this way first 603-605), but its content is very low.
Smalley etc. (Science, 1996,273,483) laser method makes the very high single-walled nanotube of purity, but the output of single-walled nanotube is extremely low.
1997, C.Journet people such as (Nature, 1997,388,756) obtained result preferably by the method for gaseous tension in transformation catalyst kind and the adjustment reactor.Its experiment condition is: reaction atmosphere 660mmHg helium; Negative electrode and anode are respectively a graphite rod, and it is of a size of negative electrode 16 * 40mm, and anode 16 * 100mm is drilled with a hole that 3.5 * 40mm is dark, the mixture of filling catalyzer in the hole (yttrium, nickel) and Graphite Powder 99 again in the middle of anode bar; Negative electrode and anode are vertically opposite, and its spacing is 3mm, and the reaction times is 2 minutes, can obtain a certain amount of Single Walled Carbon Nanotube at the indivedual positions of reaction precipitation thing.
Executed Zu Jin etc. (CN1235121A) in 1999 and announce that a kind of is the method that the arc process of catalyzer prepares Single Walled Carbon Nanotube with alkaline-earth metal or alkaline earth carbide.But this method Preparation of Catalyst complexity, the output of single-walled nanotube is lower.
The bright grades of 2000 year's harvest meetings (CN1277937A) announce that a kind of hydrogen arc process prepares the method for Single Walled Carbon Nanotube, and negative electrode becomes the angle of 30-80 degree with anode, and anode is with the charcoal fiber and contain the catalyzer of iron, nickel, molybdenum, chromium or yttrium, and adding sulphur and sulfide.This method once makes the nanotube of milligram level only.
Chinese patent CN1354130A discloses and has prepared the method that comprises Single Walled Carbon Nanotube, contains metal catalyst on the anodic surface, forms CNT (carbon nano-tube) at specific position.
Above arc process prepares Single Walled Carbon Nanotube and exists following defective: because the catalyst system therefor costliness, disperse inhomogeneously, make product purity not high, unstable product quality, product cost are very high, and output is limited, have limited the application of Single Walled Carbon Nanotube.
Summary of the invention
The purpose of this invention is to provide a kind of electric arc synthetic method of new Single Walled Carbon Nanotube, can overcome above-mentioned defective.The present invention has adopted electrode that a kind of brand-new catalyst system makes as anode, and catalyzer is evenly spread in the consumable anode.Anode and cathode arc-over under inert atmosphere produces Single Walled Carbon Nanotube, and it once can produce low cost, a large amount of, the stay-in-grade Single Walled Carbon Nanotube of high purity continuously.
The present invention is to be negative electrode with the graphite material, and mixed electrods is an anode; Mixed electrods is the sacrificial electrode that carbonaceous material (graphite, coal, pitch or carbon fiber, or their mixture, preferred carbon fiber or carbon fiber and graphite) and mixture of catalysts are formed.
Described catalyzer of the present invention is selected from following: one or more (a), (b) in one or more; (a) one or more in (b) in one or more mixture; Or the mixture of one or more compositions in one or more and metallic iron, nickel, molybdenum, chromium or the yttrium (a) or (b):
(a) oxide compound of transition metal or rare earth element.
(b) the inorganic or organic salt of transition metal or rare earth element.
The molar content of catalyzer of the present invention is 0.1-8%; Described transition metal and rare earth element mol ratio: 1-8: 1-2.
Transition metal of the present invention is iron, nickel, molybdenum or chromium, and described rare earth element is a yttrium.Catalyzer of the present invention is selected from following:
1) one or more of the oxide compound of iron, nickel, molybdenum, chromium or yttrium.
2) one or more of the inorganic or organic salt of iron, nickel, molybdenum, chromium or yttrium.Preferably: one or more in the carbonate of iron, nickel, molybdenum, chromium or yttrium, hexanoate or the stearate; Again preferably: one or more of the carbonate of iron, nickel, molybdenum, chromium or yttrium.
3) mixture of one or more formations of one or more of the oxide compound of iron, nickel, molybdenum, chromium or yttrium and their inorganic or organic salt.
4) mixture of one or more compositions of one or more in metallic iron, nickel, molybdenum, chromium or the yttrium and their oxide compound; Or the mixture of one or more compositions of the inorganic or organic salt of one or more and they in metallic iron, nickel, molybdenum, chromium or the yttrium.
Concrete steps of the present invention are as follows:
1) Preparation of catalysts:
Under general conditions, component catalyst mixed in mixing tank and obtain uniform mixture catalyzer by metering.
2) preparation of electrode:
Graphite or other carbon source material of mixed uniformly catalyzer and metering are mixed, add graphite adhesive then, (graphite rod as 12 * 300mm) is made sacrificial electrode at 1000-1200 degree centigrade of roast (12-36 hour, under the inert gas atmosphere) again to be pressed into certain size after mixing.
3) single-walled nanotube is synthetic:
As negative electrode, sacrificial electrode is 80-250A at voltage for the 10-35V electric current as anode Graphite Electrodes, and system pressure is controlled at 4.0-10 * 10
4Carry out the direct current arc discharge under the condition of Pa.
Use the present invention once can get Single Walled Carbon Nanotube and can reach the 20-100 gram.Product verifies that through SEM (scanning electron microscope), TEM (transmission electron microscope) and Raman (Raman spectrum) its SWNTs content can reach 70% or higher, and its diameter is between 0.8-2.0nm.
The present invention has following advantage and characteristics:
1) the used carbon material of anode can be graphite or coal or pitch or carbon fiber or their mixture.
2) catalyzer be rare earth elements such as transition metal such as iron, nickel, molybdenum, chromium or yttrium oxide compound or rare earth element such as transition metal such as iron, nickel, molybdenum, chromium or yttrium the transition metal such as one or more and iron, nickel, molybdenum, chromium of inorganic or organic salt or the mixture of the inorganic or organic salt of one or more or they of rare earth element such as yttrium, the catalyzer add-on is that the 0.1-8% anode of mixture molar content is that carbon material and catalyzer are evenly made, make that steaming of Graphite Powder 99 and catalyzer is more even, the output of Single Walled Carbon Nanotube and quality all greatly improve.Because the catalyzer cost greatly reduces, the product price of Single Walled Carbon Nanotube is greatly reduced simultaneously.
3) select for use different catalyzer can make the Single Walled Carbon Nanotube of different diameter and length.
4) once can produce low cost, a large amount of, the stay-in-grade Single Walled Carbon Nanotube of high purity continuously.
Description of drawings:
Fig. 1. be the typical Raman spectrum of synthetic Single Walled Carbon Nanotube of the present invention.
Fig. 2. be the typical scan electromicroscopic photograph of synthetic Single Walled Carbon Nanotube of the present invention.
Fig. 3. be the typical transmission electron microscope photo of synthetic Single Walled Carbon Nanotube of the present invention.
Embodiment
The feature that the invention is further illustrated by the following examples, but the present invention is not limited to following example.
Embodiment 1
Take by weighing 1.16 gram carbon fibers, 18.68 gram graphite adhesives, 3.23 gram nickel powders, 1.48 gram yttrium oxide powder stir with mixing tank, in grinding tool, be pressed into then electrode (12 * 300mm), accompany to burn at 1100 ℃ and made sacrificial electrode in 24 hours.Do anode with this sacrificial electrode, Graphite Electrodes is done negative electrode, and anode and cathode axis are to relative, and the pole distance of anode and negative electrode remains between the 3-5mm, in 6.8-7.3 * 10
4Pa[510-550mmHg] argon shield under, electric current 100-150 ampere; carry out arc-over in the scope of voltage 15-25 volt; reaction times is 2 hours, after reaction is finished, reaches reactor wall around the two poles of the earth in reactor and can collect netted or paper shape Single Walled Carbon Nanotube product 4 grams.Test result is seen Fig. 1-3.Fig. 1. be the typical Raman spectrum (excitation wavelength is 514 nanometers) of synthetic Single Walled Carbon Nanotube of the present invention.Fig. 2. be the typical scan electromicroscopic photograph of synthetic Single Walled Carbon Nanotube of the present invention.Fig. 3. be the typical transmission electron microscope photo of synthetic Single Walled Carbon Nanotube of the present invention.
Embodiment 2
Take by weighing 1.16 gram carbon fibers, 9.0 gram graphite, 10.0 gram graphite adhesives, 4.12 gram nickel oxide powders, 1.17 gram yttrium powder stir with mixing tank, are pressed into electrode then in grinding tool, accompany at 1000 to 1200 ℃ and burn till sacrificial electrode.Do anode with this sacrificial electrode, Graphite Electrodes is done negative electrode, in 6.8-7.3 * 10
4Under the argon shield of Pa, 100 amperes in electric current, carry out arc-over in the scope of voltage 15-25 volt, the reaction times is 8 hours, after reaction is finished, around the two poles of the earth in reactor and reactor wall is collected netted or paper shape Single Walled Carbon Nanotube product 14 grams.
Take by weighing 1.16 gram carbon fibers, 18.68 gram graphite adhesives, 4.12 gram nickel oxide powders, 1.48 gram yttrium oxide powder stir with mixing tank, are pressed into electrode then in grinding tool, accompany at 1000 to 1200 ℃ and burn till sacrificial electrode.Do anode with this sacrificial electrode, Graphite Electrodes is done negative electrode, in 6.8-7.3 * 10
4Under the argon shield of Pa, 100 amperes in electric current, carry out arc-over in the scope of voltage 15-25 volt, 10 hours reaction times is after reaction is finished, around the two poles of the earth in reactor and reactor wall is collected netted or paper shape Single Walled Carbon Nanotube product 25 grams.
Embodiment 4
Take by weighing 2.0 gram carbon fibers, 8.0 gram graphite, 10.68 gram graphite adhesives, 0.94g restrains nickelous carbonate, and 0.24g gram yttrium carbonate stirs with mixing tank, is pressed into electrode then in grinding tool, accompanies at 1000 to 1200 ℃ and burns till sacrificial electrode.Do anode with this sacrificial electrode, Graphite Electrodes is done negative electrode, in 6.8-7.3 * 10
4Under the argon shield of Pa, 100 amperes in electric current, carry out arc-over in the scope of voltage 15-25 volt, 6 hours reaction times is after reaction is finished, around the two poles of the earth in reactor and reactor wall is collected netted or paper shape Single Walled Carbon Nanotube product 12 grams.
Embodiment 5
1.6 the gram carbon fiber, 18.68 gram graphite adhesives, 0.94 gram nickelous carbonate, 0.24 gram yttrium carbonate powder stirs with mixing tank, is pressed into electrode then in grinding tool, accompanies at 1000 to 1200 ℃ and burns till sacrificial electrode.Do anode with this sacrificial electrode, Graphite Electrodes is done negative electrode, in 6.8-7.3 * 10
4Under the argon shield of Pa, 100 amperes in electric current, carry out arc-over in the scope of voltage 15-25 volt, 10 hours reaction times is after reaction is finished, around the two poles of the earth in reactor and reactor wall is collected netted or paper shape Single Walled Carbon Nanotube product 25 grams.
Embodiment 6
3.2 the gram carbon fiber, 38 gram graphite adhesives, the 2.10 sour nickel of restraining oneself, 0.50 gram yttrium carbonate powder stirs with mixing tank, is pressed into electrode then in grinding tool, accompanies at 1000 to 1200 ℃ and burns till sacrificial electrode.Do anode with this sacrificial electrode, Graphite Electrodes is done negative electrode, in 6.8-7.3 * 10
4Under the argon shield of Pa, 150 amperes in electric current, carry out arc-over in the scope of voltage 15-25 volt, 11 hours reaction times is after reaction is finished, around the two poles of the earth in reactor and reactor wall is collected netted or paper shape Single Walled Carbon Nanotube product 35 grams.
Embodiment 7
3.2 the gram carbon fiber, 38 gram graphite adhesives, 2.50 gram nickel stearates, 0.50 gram yttrium carbonate powder stirs with mixing tank, is pressed into electrode then in grinding tool, accompanies at 1000 to 1200 ℃ and burns till sacrificial electrode.Do anode with this sacrificial electrode, Graphite Electrodes is done negative electrode, in 6.8-7.3 * 10
4Under the argon shield of Pa, 150 amperes in electric current, carry out arc-over in the scope of voltage 15-25 volt, 8 hours reaction times is after reaction is finished, around the two poles of the earth in reactor and reactor wall is collected netted or paper shape Single Walled Carbon Nanotube product 26 grams.
Embodiment 8
3.2 the gram carbon fiber, 10 gram fat coals, 10 gram graphite adhesives, 0.94 gram iron carbonate, 0.24 gram yttrium carbonate powder stirs with mixing tank, is pressed into electrode then in grinding tool, accompanies at 1000 to 1200 ℃ and burns till sacrificial electrode.
Do anode with this sacrificial electrode, Graphite Electrodes is done negative electrode, in 6.8-7.3 * 10
4Under the argon shield of Pa (510-550mmHg), 80 amperes in electric current; carry out arc-over in the scope of voltage 15-25 volt; in 10 hours reaction times, after reaction is finished, reach reactor wall around the two poles of the earth in reactor and collect netted or paper shape Single Walled Carbon Nanotube product 36 grams.
Claims (10)
1, a kind of electric arc synthetic method of Single Walled Carbon Nanotube, this diameter of single-wall carbon nano tube 0.8-2.0nm, it is that the mode that adopts cathode and anode to carry out the direct current arc discharge under inert gas pressure atmosphere is synthesized, described negative electrode is a graphite material; Described anode is a mixed electrods; It is characterized in that:
Described anode is the sacrificial electrode that carbonaceous material and mixture of catalysts are formed;
Described catalyzer is selected from following: one or more (a), (b) in one or more; (a) one or more in (b) in one or more mixture; Or the mixture of one or more compositions in one or more and metallic iron, nickel, molybdenum, chromium or the yttrium (a) or (b):
(a) oxide compound of transition metal or rare earth element;
(b) the inorganic or organic salt of transition metal or rare earth element;
The molar content of described catalyzer is 0.1-8%; Described transition metal and rare earth element mol ratio: 1-8: 1-2.
2,, it is characterized in that described catalyzer is one or more of oxide compound of iron, nickel, molybdenum, chromium or yttrium according to the electric arc synthetic method of the described Single Walled Carbon Nanotube of claim 1.
3,, it is characterized in that described catalyzer is one or more of the inorganic or organic salt of iron, nickel, molybdenum, chromium or yttrium according to the electric arc synthetic method of the described Single Walled Carbon Nanotube of claim 1.
4,, it is characterized in that described catalyzer is one or more in carbonate, caproate or the stearate of iron, nickel, molybdenum, chromium or yttrium according to the electric arc synthetic method of the described Single Walled Carbon Nanotube of claim 3;
5,, it is characterized in that described catalyzer is one or more of carbonate of iron, nickel, molybdenum, chromium or yttrium according to the electric arc synthetic method of the described Single Walled Carbon Nanotube of claim 4.
6,, it is characterized in that described catalyzer is the mixture of one or more formations of inorganic or organic salt of one or more and they of the oxide compound of iron, nickel, molybdenum, chromium or yttrium according to the electric arc synthetic method of the described Single Walled Carbon Nanotube of claim 1.
7,, it is characterized in that described catalyzer is: the mixture of one or more compositions of one or more in metallic iron, nickel, molybdenum, chromium or the yttrium and their oxide compound according to the electric arc synthetic method of the described Single Walled Carbon Nanotube of claim 1; Or the mixture of one or more compositions of the inorganic or organic salt of one or more and they in metallic iron, nickel, molybdenum, chromium or the yttrium.
8, according to the electric arc synthetic method of the described Single Walled Carbon Nanotube of claim 1, it is characterized in that described carbonaceous material is graphite, coal, pitch or carbon fiber, or their mixture.
9,, it is characterized in that described carbonaceous material is carbon fiber or carbon fiber and graphite according to the electric arc synthetic method of the described Single Walled Carbon Nanotube of claim 8.
10, according to the electric arc synthetic method of the described Single Walled Carbon Nanotube of claim 1, it is characterized in that concrete steps are as follows:
1) Preparation of catalysts:
Under general conditions, component catalyst mixed in mixing tank and obtain uniform mixture catalyzer by metering;
2) preparation of sacrificial electrode:
Graphite or other carbonaceous material of mixed uniformly catalyzer and metering are mixed, add graphite adhesive then, be pressed into graphite rod after mixing, made sacrificial electrode again at 1000-1200 degree centigrade of roast 12-36 hour;
3) single-walled nanotube is synthetic:
As negative electrode, sacrificial electrode is 80-250A at voltage for the 10-35V electric current as anode Graphite Electrodes, and system pressure is controlled at 4.0-10 * 10
4Carry out the direct current arc discharge under the condition of Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100196244A CN1299980C (en) | 2004-06-15 | 2004-06-15 | Arc synthesis of single-wall carbon nanometer tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100196244A CN1299980C (en) | 2004-06-15 | 2004-06-15 | Arc synthesis of single-wall carbon nanometer tubes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1712349A true CN1712349A (en) | 2005-12-28 |
| CN1299980C CN1299980C (en) | 2007-02-14 |
Family
ID=35718170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100196244A Expired - Fee Related CN1299980C (en) | 2004-06-15 | 2004-06-15 | Arc synthesis of single-wall carbon nanometer tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1299980C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481788A (en) * | 2008-03-04 | 2009-07-15 | 浙江大学 | Preparation of single wall carbon nano-tube film |
| CN102351171A (en) * | 2011-09-15 | 2012-02-15 | 上海交通大学 | Method for selectively preparing single-walled carbon nanotube in magnetic field |
| CN102459073A (en) * | 2009-06-11 | 2012-05-16 | 同和控股（集团）有限公司 | Carbon nanotubes and process for producing same |
| CN102633244A (en) * | 2011-02-12 | 2012-08-15 | 南开大学 | Carbon material and preparation method thereof |
| CN102888673A (en) * | 2011-07-19 | 2013-01-23 | 中国科学院金属研究所 | Preparation method of carbon nanofibers |
| US8628748B2 (en) | 2007-03-13 | 2014-01-14 | Toyo Tanso Co., Ltd. | Purification method for carbon material containing carbon nanotubes, carbon material produced by the same method, and resin molding, fiber, heat sink, slider, material for field electron emission source, conduction aid for electrode, catalyst support |
| CN109714941A (en) * | 2018-11-22 | 2019-05-03 | 谢春艳 | A kind of single-walled carbon nanotube embeds magnetic metal carbon onion nanocomposite and its application |
| CN110589803A (en) * | 2019-09-06 | 2019-12-20 | 奇华光电（昆山）股份有限公司 | Preparation method of orderly-arranged carbon nanotube material and heat dissipation structure thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101335C (en) * | 1999-06-16 | 2003-02-12 | 中国科学院金属研究所 | Hydrogn arc discharging method for large scale prodn. of single wall nanometer carbon tube |
| US6740224B1 (en) * | 2001-06-11 | 2004-05-25 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method of manufacturing carbon nanotubes |
| CN1194889C (en) * | 2002-06-06 | 2005-03-30 | 中国科学院金属研究所 | Process for preparing single wall nano carbon tube |
| FR2845079B1 (en) * | 2002-09-30 | 2005-07-08 | Nanoledge | METHOD AND APPARATUS FOR PRODUCING NANOTUBES |
-
2004
- 2004-06-15 CN CNB2004100196244A patent/CN1299980C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8628748B2 (en) | 2007-03-13 | 2014-01-14 | Toyo Tanso Co., Ltd. | Purification method for carbon material containing carbon nanotubes, carbon material produced by the same method, and resin molding, fiber, heat sink, slider, material for field electron emission source, conduction aid for electrode, catalyst support |
| CN101481788A (en) * | 2008-03-04 | 2009-07-15 | 浙江大学 | Preparation of single wall carbon nano-tube film |
| CN102459073A (en) * | 2009-06-11 | 2012-05-16 | 同和控股（集团）有限公司 | Carbon nanotubes and process for producing same |
| CN102459073B (en) * | 2009-06-11 | 2014-05-14 | 同和控股（集团）有限公司 | Carbon nanotubes and process for producing same |
| CN102633244A (en) * | 2011-02-12 | 2012-08-15 | 南开大学 | Carbon material and preparation method thereof |
| CN102633244B (en) * | 2011-02-12 | 2015-09-30 | 南开大学 | Carbon material and preparation method thereof |
| CN102888673A (en) * | 2011-07-19 | 2013-01-23 | 中国科学院金属研究所 | Preparation method of carbon nanofibers |
| CN102351171A (en) * | 2011-09-15 | 2012-02-15 | 上海交通大学 | Method for selectively preparing single-walled carbon nanotube in magnetic field |
| CN102351171B (en) * | 2011-09-15 | 2014-01-01 | 上海交通大学 | Method for selectively preparing single-walled carbon nanotube in magnetic field |
| CN109714941A (en) * | 2018-11-22 | 2019-05-03 | 谢春艳 | A kind of single-walled carbon nanotube embeds magnetic metal carbon onion nanocomposite and its application |
| CN110589803A (en) * | 2019-09-06 | 2019-12-20 | 奇华光电（昆山）股份有限公司 | Preparation method of orderly-arranged carbon nanotube material and heat dissipation structure thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1299980C (en) | 2007-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1101335C (en) | Hydrogn arc discharging method for large scale prodn. of single wall nanometer carbon tube | |
| Kibria et al. | Electrochemical hydrogen storage behaviors of CVD, AD and LA grown carbon nanotubes in KOH medium | |
| US6455021B1 (en) | Method for producing carbon nanotubes | |
| Sun et al. | Growth of straight nanotubes with a cobalt–nickel catalyst by chemical vapor deposition | |
| CA2424969C (en) | Double-walled carbon nanotubes and methods for production and application | |
| US7601321B2 (en) | Laser pyrolysis method for producing carbon nano-spheres | |
| CN1673073A (en) | Single-wall carbon nanotube synthesizing process | |
| CN1299980C (en) | Arc synthesis of single-wall carbon nanometer tubes | |
| Demoncy et al. | Sulfur: the key for filling carbon nanotubes with metals | |
| US20070042903A1 (en) | Lanthanum doping catalyst for preparing carbon nanotubes having uniform diameter and producing method thereof | |
| US7955663B2 (en) | Process for the simultaneous and selective preparation of single-walled and multi-walled carbon nanotubes | |
| Asghar et al. | Properties, assembly and characterization of carbon nanotubes: Their application in water purification, environmental pollution control and biomedicines—A comprehensive review | |
| CN100522804C (en) | Arc method for synthesizing controllable single wall carbon nano tube | |
| Zhen-Hua et al. | Synthesis of large quantity single-walled carbon nanotubes by arc discharge | |
| CN1522955A (en) | Method for preparing single wall nanometer carbon tube using mesophase asphalt as raw material | |
| Song et al. | Efficiently producing single-walled carbon nanotube rings and investigation of their field emission properties | |
| CN1194889C (en) | Process for preparing single wall nano carbon tube | |
| Montoro et al. | Study of oxygen influence in the production of single-wall carbon nanotubes obtained by arc method using Ni and Y catalyst | |
| Wang et al. | Unusual morphologies of carbon nanoparticles obtained by arc discharge in deionized water | |
| Suriani et al. | Effect of synthesis time on carbon nanotubes growth from palm oil as carbon source by thermal chemical vapor deposition method | |
| Chen et al. | Deposition of the platinum crystals on the carbon nanotubes | |
| Subramoney | Carbon nanotubes: A status report | |
| Yadav et al. | Carbon nanomaterials: fullerene to graphene | |
| CN1544319A (en) | Carbon nanometer tube arc discharge preparation method under vacuum condition | |
| KR100500210B1 (en) | Method of preparing carbon nanotubes using mechanochemically treated catalysts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070214 Termination date: 20150615 |
|
| EXPY | Termination of patent right or utility model |