CN100445196C - Carbon nanotube hydrogen-storing and coating method - Google Patents
Carbon nanotube hydrogen-storing and coating method Download PDFInfo
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- CN100445196C CN100445196C CNB200410014424XA CN200410014424A CN100445196C CN 100445196 C CN100445196 C CN 100445196C CN B200410014424X A CNB200410014424X A CN B200410014424XA CN 200410014424 A CN200410014424 A CN 200410014424A CN 100445196 C CN100445196 C CN 100445196C
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- hydrogen
- coating
- carbon nanotube
- storage
- hydrogen storage
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 238000000576 coating method Methods 0.000 title claims abstract description 51
- 239000002041 carbon nanotube Substances 0.000 title claims description 70
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims description 70
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 97
- 239000001257 hydrogen Substances 0.000 claims abstract description 97
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000011248 coating agent Substances 0.000 claims abstract description 49
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- 238000010008 shearing Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 27
- 150000002431 hydrogen Chemical class 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 5
- 238000002203 pretreatment Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 239000003380 propellant Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 239000003721 gunpowder Substances 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010981 drying operation Methods 0.000 abstract 1
- 238000007781 pre-processing Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000004681 metal hydrides Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
The present invention relates to a carbon nanometer tube hydrogen storing and coating method which comprises a hydrogen storing part and a coating part. The purification, the washing operation, the drying operation and the shearing and preprocessing operation are carried out, and then, a coating medium is conveyed to a coating tank. A carbon nanometer tube is conveyed to a hydrogen storing tank for the hydrogen storage of the carbon nanometer tube. The carbon nanometer tube after hydrogen storage is driven by airflow, and the carbon nanometer tube enters the coating tank through a pressure valve for coating a hydrogen storage carbon nanometer tube. After the coating operation is completed, a blow off valve is opened, and thus, the coating tank is returned to normal pressure. The coated hydrogen storage carbon nanometer tube is taken, namely that a coated hydrogen storage carbon nanometer tube in a dry state is obtained. The present invention realizes the purposes of the high pressure hydrogen storage and the normal pressure transportation of the carbon nanometer tube. The hydrogen storage amount of the carbon nanometer tube can be accurately calculated relatively, thereby, the double verification purpose is achieved. The present invention is suitable for the absorption and the coating operation of nanometer materials, submicron materials and micrometer materials. The coated hydrogen storage carbon nanometer tube can be used as beneficial compensation energy sources of propellant in solid rocket propellant or gun powder, and can be also used for energy source batteries.
Description
One technical field
Coating technology after the present invention relates to a kind of nano material storage hydrogen and storing up hydrogen, particularly a kind of hydrogen Storage in Carbon Nanotubes and method for coating thereof.
Two background technologies
Hydrogen Energy is a kind of inexhaustible, nexhaustible renewable clear energy sources, but the accumulating of Hydrogen Energy is the important factor that the restriction Hydrogen Energy is utilized.The main method of Hydrogen Energy accumulating at present has: liquefaction accumulating method, compressing, stalling and transporting method, solid hydrogen---liquid hydrogen mixing accumulating method, metal hydride accumulating method, organic liquid hydride hydrogen storage, mineral compound storage hydrogen, charcoal absorption Chu Qing etc., but all there is quality hydrogen-storage amount low (about 2%wt～3%wt) in these several hydrogen storage methods, can not satisfy the service requirements of power source.
In recent years along with deepening continuously that carbon nanotube is studied, carbon nanotube shows just day by day in the broad prospect of application aspect the Hydrogen Energy accumulating, scientist has carried out extensive studies to the hydrogen storage property of carbon nanotube both at home and abroad, according to document announcement, the hydrogen Storage in Carbon Nanotubes maximum can reach more than 10%wt～12%wt, minimum has only about 3%wt～5%wt, but carbon nanotube generally is under high pressure conditions as the carrier of Hydrogen Energy, mainly utilize the high-ratio surface of carbon nanotube that the physical adsorption of Hydrogen Energy is finished, after system pressure reduction or release, hydrogen adsorbed in the carbon nanotube takes off suction with part or major part, is unfavorable for accurately measuring the hydrogen-storage amount of carbon nanotube and the stably stored and the utilization of Hydrogen Energy.
At present, also rest on the basic theory aspect of hydrogen-storage amount and Chu Qing mechanism about the research of hydrogen Storage in Carbon Nanotubes, how after system's release, to make Hydrogen Energy continue stable be long-term stored in the carbon nanotube and do not escape as for the carbon nanotube of storage behind the hydrogen, yet there are no reported in literature.
For addressing the above problem, present way is to utilize carbon nanotube to inhale the reduction value of system pressure in the hydrogen process and the volume of the liquid that arranges calculates carbon nanotube when putting hydrogen absorption hydrogen amount, perhaps utilizes the changes in weight behind the carbon nanotube suction hydrogen to calculate the absorption hydrogen amount.These two kinds of methods, the former is subjected to the influence of envrionment temperature bigger, and the latter is subjected to the influence of system pressure bigger, can not accurately calculate the absorption hydrogen amount of carbon nanotube, can not solve the storage problem of Hydrogen Energy under the normal pressure again.
Three summary of the invention
The object of the present invention is to provide a kind ofly when carrying out hydrogen Storage in Carbon Nanotubes, the carbon nanotube of storage behind the hydrogen coated processing, to avoid storing up carbon nanotube hydrogen Storage in Carbon Nanotubes that Hydrogen Energy escapes after system's release and the method for coating thereof behind the hydrogen.
The technical scheme that realizes the object of the invention is; A kind of hydrogen Storage in Carbon Nanotubes and method for coating thereof, comprise Chu Qing and coat two parts, technical process and operational condition are carried out in the following manner: carry out pre-treatment earlier: carbon nanotube carries out purifying, washing, drying, shearing, dispersion, the structure of destroying carbon nanometer tube not during shearing; Vacuum-treat: hydrogen container and coating jar are evacuated respectively, will coat medium then and send into the coating jar, and carbon nanotube is sent into hydrogen container; Storing up hydrogen then handles; The closing presure valve, the air intake valve of adjusting hydrogen carries out hydrogen Storage in Carbon Nanotubes; Coat and handle; Open pressure valve, carbon nanotube behind the Chu Qing is under air-flow drives, enter the coating jar through pressure valve, after the system pressure balance, the closing presure valve, use the coating medium of alcohol or benzene to store up the coating of hydrogen carbon nanotube, after coating end, open and diffuse valve, make to coat a jar recovery normal pressure, storage hydrogen carbon nanotube after take out coating treats promptly to get after the volatilization of alcohol or benzene the storage hydrogen carbon nanotube after the coating of drying regime.
In hydrogen Storage in Carbon Nanotubes of the present invention and the method for coating thereof, after pretreated carbon nanotube under high pressure stores up hydrogen, directly store up the coating of hydrogen carbon nanotube without the release separating treatment and handle, prevent that the hydrogen of storing from escaping.
In hydrogen Storage in Carbon Nanotubes of the present invention and the method for coating thereof, adopt microwave to disperse during pre-treatment.
The storage hydrogen pressure of hydrogen Storage in Carbon Nanotubes of the present invention and method for coating thereof is at 8～12MPa.
The coating time of hydrogen Storage in Carbon Nanotubes of the present invention and method for coating thereof was at 30～60 minutes.
Principle of the present invention is the wetting property of carbon nanotube to alcohol and benzene, and alcohol and benzene from volatility.When the carbon nanotube behind the storage hydrogen mixes with the solution of alcohol or benzene, the surface of carbon nanotube has very strong infiltration absorption property to alcohol and benzene, thereby the inorganic salt solution of alcohol or benzene is coated on the surface of carbon nanotube and the two ends of pipe, after system's release, alcohol or benzene volatilize in atmosphere, and inorganic salt are stayed the surface and the two ends of carbon nanotube, have hindered escaping of hydrogen.
The present invention compared with prior art, its remarkable advantage is: realized the high-pressure hydrogen storing of carbon nanotube and the purpose that normal pressure transports 1.; 2. can compare accurate calculating to the hydrogen-storage amount of carbon nanotube, both can calculate the hydrogen-storage amount of the carbon nanotube after the coating, can calculate the hydrogen-storage amount of carbon nanotube again by the reduction of system pressure, thereby reach the purpose of double verification, help the long-term stability storage hydrogen of carbon nanotube and the hydrogen storage property of carbon nanotube is carried out intensive research; 3. this method is applicable to the absorption and the coating of all nanometers, submicron, micro materials; 4. the useful additional energy that the storage hydrogen carbon nanotube after coating can be used as propelling agent is used in solid rocket propellant or the gunpowder, also can be used in the energy battery.
Four description of drawings
Fig. 1 is the process flow sheet of hydrogen Storage in Carbon Nanotubes of the present invention and method for coating thereof.
Fig. 2 is the device synoptic diagram of hydrogen Storage in Carbon Nanotubes of the present invention and method for coating thereof.
Five embodiments
Below in conjunction with accompanying drawing the present invention is described further.
In conjunction with Fig. 1, Fig. 2, a kind of embodiment of the present invention is:
The first step: carbon nanotube is carried out pre-treatment, comprise carbon nanotube is carried out purifying, washing, drying, shearing, dispersion;
Second step; Observe tensimeter 3, tensimeter 6, the resistance to air loss of check system is stopped system's bad connection;
The 3rd step: valve-off 2, diffuse valve 5, pressure valve 9 and T-valve 7 and hydrogen container 8 and coat jar diffuse valve 5, charging valve, open hydrogen container respectively and the vacuum valve that coats jar vacuumizes system;
The 4th step: the charging valve of opening on the hydrogen container 8 adds carbon nanotube and cuts out charging valve toward hydrogen container rapidly; Opening the charging valve that coats on the jar adds coating rapidly and closes charging valve;
The 5th step: open valve 2 and T-valve 7, the storage hydrogen experiment of carrying out carbon nanotube is until reaching the specified time;
The 6th step: Chu Qing experiment is opened pressure valve 9 after finishing, and carbon nanotube enters under the drive of air-flow and coats jars 10, closing presure valve 9 and valve 2 and hydrogen 1, the coating experiment of storing up the carbon nanotube behind the hydrogen;
The 7th step: coat after experiment finishes, the valve that diffuses of opening and diffusing valve 5 and hydrogen container 8, coat on jars 10 is emitted remaining hydrogen;
The 8th step: close hydrogen valve, finish experiment.
Claims (5)
1, a kind of hydrogen Storage in Carbon Nanotubes and method for coating thereof comprise Chu Qing and coat two parts, and technical process and operational condition are carried out in the following manner:
1.1 pre-treatment: carbon nanotube carries out purifying, washing, drying, shearing, dispersion, the structure of destroying carbon nanometer tube not during shearing;
1.2 vacuum-treat: hydrogen container and coating jar are evacuated respectively, will coat medium then and send into the coating jar, and carbon nanotube is sent into hydrogen container;
1.3 storage hydrogen: the closing presure valve, the air intake valve of adjusting hydrogen carries out hydrogen Storage in Carbon Nanotubes;
1.4 coating: open pressure valve, the carbon nanotube behind the storage hydrogen enters the coating jar through pressure valve under air-flow drives, after the system pressure balance, and the closing presure valve, the coating medium of use alcohol or benzene stores up the hydrogen carbon nanotube and coats;
1.5 after coating end, open and diffuse valve, make to coat a jar recovery normal pressure;
1.6 the storage hydrogen carbon nanotube after take out coating treats promptly to get after the volatilization of alcohol or benzene the storage hydrogen carbon nanotube after the coating of drying regime.
2, a kind of hydrogen Storage in Carbon Nanotubes according to claim 1 and method for coating thereof, after it is characterized in that pretreated carbon nanotube under high pressure stores up hydrogen, directly store up the coating of hydrogen carbon nanotube without the release separating treatment and handle, prevent that the hydrogen of storing from escaping.
3, hydrogen Storage in Carbon Nanotubes according to claim 1 and 2 and method for coating thereof adopt microwave to disperse when it is characterized in that pre-treatment.
4, hydrogen Storage in Carbon Nanotubes according to claim 1 and 2 and method for coating thereof is characterized in that storing up hydrogen pressure at 8～12MPa.
5, hydrogen Storage in Carbon Nanotubes according to claim 1 and 2 and method for coating thereof is characterized in that the coating time was at 30～60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410014424XA CN100445196C (en) | 2004-03-24 | 2004-03-24 | Carbon nanotube hydrogen-storing and coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410014424XA CN100445196C (en) | 2004-03-24 | 2004-03-24 | Carbon nanotube hydrogen-storing and coating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1673072A CN1673072A (en) | 2005-09-28 |
| CN100445196C true CN100445196C (en) | 2008-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410014424XA Expired - Fee Related CN100445196C (en) | 2004-03-24 | 2004-03-24 | Carbon nanotube hydrogen-storing and coating method |
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| Country | Link |
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| CN (1) | CN100445196C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972538A (en) * | 2014-04-03 | 2014-08-06 | 上海华篷防爆科技有限公司 | Solid hydrogen power generating device provided with polymer electrolyte membrane |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1072201A (en) * | 1996-08-30 | 1998-03-17 | Toyota Motor Corp | Hydrogen storage method |
| JP2003238101A (en) * | 2002-02-08 | 2003-08-27 | Mitsubishi Heavy Ind Ltd | Hydrogen storage body and its producing method |
| WO2003101891A1 (en) * | 2002-06-03 | 2003-12-11 | Incorporated Administrative Agency National Agriculture And Bio-Oriented Research Organization | Polymer coated carbon nanotube |
-
2004
- 2004-03-24 CN CNB200410014424XA patent/CN100445196C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1072201A (en) * | 1996-08-30 | 1998-03-17 | Toyota Motor Corp | Hydrogen storage method |
| JP2003238101A (en) * | 2002-02-08 | 2003-08-27 | Mitsubishi Heavy Ind Ltd | Hydrogen storage body and its producing method |
| WO2003101891A1 (en) * | 2002-06-03 | 2003-12-11 | Incorporated Administrative Agency National Agriculture And Bio-Oriented Research Organization | Polymer coated carbon nanotube |
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| Publication number | Publication date |
|---|---|
| CN1673072A (en) | 2005-09-28 |
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Granted publication date: 20081224 Termination date: 20100324 |