CN2457118Y - Plasma preparing nanometer carbon tube device - Google Patents

Plasma preparing nanometer carbon tube device Download PDF

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Publication number
CN2457118Y
CN2457118Y CN 00263593 CN00263593U CN2457118Y CN 2457118 Y CN2457118 Y CN 2457118Y CN 00263593 CN00263593 CN 00263593 CN 00263593 U CN00263593 U CN 00263593U CN 2457118 Y CN2457118 Y CN 2457118Y
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CN
China
Prior art keywords
electrode
reaction tube
tube
crystal reaction
cnt
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.)
Expired - Fee Related
Application number
CN 00263593
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Chinese (zh)
Inventor
张月萍
刘昌俊
张敏华
杨桂芹
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Tianjin University
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Tianjin University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin University filed Critical Tianjin University
Priority to CN 00263593 priority Critical patent/CN2457118Y/en
Application granted granted Critical
Publication of CN2457118Y publication Critical patent/CN2457118Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a plasma device used for preparing a nanometer carbon tube. The utility model is characterized in that the anodes and the cathodes of two electrodes fixed to a sealing plug of a sealing quartz reaction tube are arranged in the quartz reaction tube; the ends of the anodes of the electrodes are made into a tip shape, and the ends of the cathodes of the electrodes are made into a platform shape the quartz reaction tube is provided with an air inlet nozzle and an air outlet nozzle. The utility model adopts the mode of plasma polymerization and creates a nanometer carbon tube with the inner diameters being 4 to 6 nm and the outer diameters being 22 to 30 nm. Needed energy does not need to be cracked by high temperature, which causes the theory conversion degree to achieve 100%. The utility model provides a new way for preparing nanometer carbon tubes.

Description

Plasma body prepares the CNT (carbon nano-tube) device
The utility model relates to preparation CNT (carbon nano-tube) device, and especially a kind of plasma body prepares the CNT (carbon nano-tube) device.
Nanotechnology is with a wide range of applications as current a kind of new high-tech material.But the technology of existing preparation CNT (carbon nano-tube) generally adopts arc discharge, heat and catalytic decomposition, chemical vapour desposition method to produce, and needs a large amount of energy and heat, the cost height.
The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of simple in structure, the using plasma polymerization methods and need not any catalyzer situation under the device of preparation CNT (carbon nano-tube).
The purpose of this utility model is achieved in that
The positive and negative electrode that is packed in two electrodes on the sealing crystal reaction tube sealing plug places in the crystal reaction tube, the electrode anode end is made as pointed, the negative pole end is made as platform-like, on crystal reaction tube, be shaped on an admission piece and an outlet nozzle, admission piece is at the crystal reaction tube position of electrode anode, and outlet nozzle is built in electrode negative pole crystal reaction tube position.
Electrode anode tip diameter is 0.2-0.6mm, and electrode negative pole platform diameter is 4-12mm, and land thickness is 2mm, and the quartz reaction bore is 6-15mm; The gas that the made admission piece of crystal reaction tube feeds is the gas mixture of hydrogen and acetylene gas; The distance of electrode positive and negative electrode end is 5-25mm, and electrode is made by isometrical round brass rod or stainless steel bar.
Advantage of the present utility model and positively effect are:
The using plasma polymerization methods; at normal temperatures; produce the CNT (carbon nano-tube) of internal diameter 4-6nm, external diameter 22-30nm by corona discharge; do not need to come cracking institute energy requirement with high temperature; thereby exempted to environment and conducted heat and save energy; simultaneously also exempted the fuel that is used to provide reaction heat, made theoretical yield reach 100%, very favourable to environment protection.And it is structural good that the CNT (carbon nano-tube) of normal temperature preparation has, and the dispersity height does not use any catalyzer, for the preparation CNT (carbon nano-tube) provides a new road.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Below in conjunction with accompanying drawing the utility model embodiment is described in further detail:
Electrode anode 3, electrode negative pole 6 are isometrical round brass rod or stainless steel bar is made, and the rod footpath is 2-5mm, and wherein the electrode anode end is pointed, its tip diameter is 0.2-0.6mm, electrode negative pole end is made as the shape of platform 5, and its platform diameter is 4-12mm, and land thickness is 2mm.Crystal reaction tube 4 is shaped on an admission piece 1 and an outlet nozzle 7, outlet nozzle is built in electrode negative pole crystal reaction tube position, admission piece is at the crystal reaction tube position of electrode anode, the electrode anode and the electrode negative pole that are packed on sealing crystal reaction tube left side sealing plug 2 and the right sealing plug 8 place in the crystal reaction tube, the effective vacuum grease sealing of these two sealing plugs and quartz reaction, the quartz reaction bore is 6-15mm, and the end distance of electrode anode and electrode negative pole is 5-25mm.The gas that the made admission piece of crystal reaction tube feeds is the gas mixture of hydrogen and acetylene gas, by the corona discharge of dc pulse current (voltage range 6000-13000 volt) and the reaction of mixed gas, between electrode anode and electrode negative pole, produce CNT (carbon nano-tube) 9 by polyreaction.
Optimum mode of operation of the present utility model is:
Battery lead rod footpath: 3mm;
Electrode anode tip diameter: 0.3mm;
Electrode negative pole platform diameter: 5mm;
Electrode negative pole land thickness: 1.5mm;
Electrode anode end and electrode anode end distance: 8mm;
Silica tube internal diameter: 8mm;
Feed acetylene gas flow: 23.8ml/min;
Feed hydrogen flowing quantity: 28.4ml/min;
Electrode voltage: 11000v; 50Hz.
Workflow of the present utility model is: feed rare gas element earlier, as Ar, after 10 minutes, feed the gas mixture of acetylene gas and hydrogen, between electrode, add dc pulse current, increase voltage gradually and lie prostrate to 6000-1300,50 hertz, produce corona discharge this moment, and the reaction times is 1-20 minute, reduces voltage gradually after reaction finishes, reduce frequency, after discharge on the positive pole, take out the cotton-shaped product between two electrodes with discharge rod, be the CNT (carbon nano-tube) of internal diameter 4-6nm, external diameter 22-30nm.

Claims (4)

1. a plasma body prepares the CNT (carbon nano-tube) device, constitute by crystal reaction tube, electrode positive and negative electrode, sealing plug, it is characterized in that: the positive and negative electrode that is packed in two electrodes on the sealing crystal reaction tube sealing plug places in the crystal reaction tube, the electrode anode end is made as pointed, the negative pole end is made as platform-like, be shaped on an admission piece and an outlet nozzle on crystal reaction tube, admission piece is at the crystal reaction tube position of electrode anode, and outlet nozzle is built in electrode negative pole crystal reaction tube position.
2. plasma body according to claim 1 prepares the CNT (carbon nano-tube) device, it is characterized in that: electrode anode tip diameter is 0.2-0.6mm, and electrode negative pole platform diameter is 4-12mm, and land thickness is 2mm, and the quartz reaction bore is 6-15mm.
3. plasma body according to claim 1 prepares the CNT (carbon nano-tube) device, it is characterized in that: the gas that the made admission piece of crystal reaction tube feeds is the gas mixture of hydrogen and acetylene gas.
4. prepare the CNT (carbon nano-tube) device according to claim 1,2 described plasma bodys, it is characterized in that: the distance of electrode positive and negative electrode end is 5-25mm, and electrode is made by isometrical round brass rod or stainless steel bar.
CN 00263593 2000-12-07 2000-12-07 Plasma preparing nanometer carbon tube device Expired - Fee Related CN2457118Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00263593 CN2457118Y (en) 2000-12-07 2000-12-07 Plasma preparing nanometer carbon tube device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00263593 CN2457118Y (en) 2000-12-07 2000-12-07 Plasma preparing nanometer carbon tube device

Publications (1)

Publication Number Publication Date
CN2457118Y true CN2457118Y (en) 2001-10-31

Family

ID=33618545

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 00263593 Expired - Fee Related CN2457118Y (en) 2000-12-07 2000-12-07 Plasma preparing nanometer carbon tube device

Country Status (1)

Country Link
CN (1) CN2457118Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101857218A (en) * 2010-06-11 2010-10-13 垦利三合新材料科技有限责任公司 Method for preparing nano carbon spheres
WO2013097545A1 (en) * 2011-12-28 2013-07-04 温州医学院 Modification method for reducing cytotoxicity of carbon nano-tubes
CN107779236A (en) * 2017-11-10 2018-03-09 李明 A kind of black petroleum products deep processing prepares the preparation method of high perofmrnace lubricating oils additive

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101857218A (en) * 2010-06-11 2010-10-13 垦利三合新材料科技有限责任公司 Method for preparing nano carbon spheres
WO2013097545A1 (en) * 2011-12-28 2013-07-04 温州医学院 Modification method for reducing cytotoxicity of carbon nano-tubes
CN107779236A (en) * 2017-11-10 2018-03-09 李明 A kind of black petroleum products deep processing prepares the preparation method of high perofmrnace lubricating oils additive

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C19 Lapse of patent right due to non-payment of the annual fee
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