CN1718281A - Cobalt/magnesium oxide aerogel catalyst, and method for producing nano-carbon tube therewith - Google Patents
Cobalt/magnesium oxide aerogel catalyst, and method for producing nano-carbon tube therewith Download PDFInfo
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- CN1718281A CN1718281A CN 200410013433 CN200410013433A CN1718281A CN 1718281 A CN1718281 A CN 1718281A CN 200410013433 CN200410013433 CN 200410013433 CN 200410013433 A CN200410013433 A CN 200410013433A CN 1718281 A CN1718281 A CN 1718281A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 29
- 239000004964 aerogel Substances 0.000 title claims abstract description 27
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title description 41
- 239000000395 magnesium oxide Substances 0.000 title description 21
- 239000010941 cobalt Substances 0.000 title description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 title 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 229910021392 nanocarbon Inorganic materials 0.000 title 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002253 acid Substances 0.000 claims abstract description 9
- 239000003960 organic solvent Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 30
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 22
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 19
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 13
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- 239000003085 diluting agent Substances 0.000 claims description 6
- 235000011187 glycerol Nutrition 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 claims description 6
- 238000010926 purge Methods 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 3
- 230000001476 alcoholic effect Effects 0.000 claims description 2
- 239000002041 carbon nanotube Substances 0.000 abstract description 6
- 229910021393 carbon nanotube Inorganic materials 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- QGUAJWGNOXCYJF-UHFFFAOYSA-N cobalt dinitrate hexahydrate Chemical compound O.O.O.O.O.O.[Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QGUAJWGNOXCYJF-UHFFFAOYSA-N 0.000 abstract 1
- DHRRIBDTHFBPNG-UHFFFAOYSA-L magnesium dichloride hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-] DHRRIBDTHFBPNG-UHFFFAOYSA-L 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- LSSAUVYLDMOABJ-UHFFFAOYSA-N [Mg].[Co] Chemical compound [Mg].[Co] LSSAUVYLDMOABJ-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002109 single walled nanotube Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
- Catalysts (AREA)
Abstract
A Co/MgO aerogel catalyst for preparing carbon nanotubes is prepared through respectively preparing the alcohol sol or alcohol solution of Co(NO3)2.6H2O or CoSO4.7H2O and Mg(No3)2.6H2O or MgCl2.6H2O, proportional mixing, adding organic solvent and acid, stirring, drying in high-pressure reactor, scavenge with protecting gas for cooling, heating to 600-1200 deg.C, and holding the temp in mixed gas for 1-200 min.
Description
One, technical field
The invention belongs to the method for a kind of CNT preparation, relate in particular to a kind of Co/MgO binary aerogel catalyst and be used to prepare the method for CNT.
Two, background technology
CNT is a dazzling jewel of nano science, and its particular structure, good physics and chemical property and great application prospect have attracted large quantities of scientists' interest, becomes the research focus of scientific domain.In the synthesis of carbon nanotube process, catalyst and carrier are very big to the growth and the purifying influence of CNT, and Co combines the SWNT that the catalyst of making can generate higher yields with MgO, when purifying, use simple method, be easy to remove catalyst, can obtain the CNT of high yield.
Preparation is that the method for carrier metal catalyst is a lot of with MgO, as (Pingan Hu, et al.Synthesis ofsingle-walled carbon nanotubes using MgO as a catalyst supports.Synthetic Metals, 2003,135-136:833-834.) MgO nanometer powder is immersed in Co (NO
3)
2In the ethanolic solution, after the ethanol evaporation, the drying that heats up again makes the Co/MgO catalyst, and finds that the catalyst that magnesia carries cobalt more has catalytic activity than the catalyst that carries iron, but prepared catalyst reunites easily, and surface area is little; For another (S Tang, etal.Controlled growth of single-walled carbon nanotubes by catalytic decompositionof CH
4Over Mo/Co/MgO catalysts.Chem Phys Lett, 2001,350:19-26.) with Mg (NO
3)
26H
2O, Co (NO
3)
26H
2O and (NH
4)
6Mo
7O
24H
2O is a raw material, mixes according to certain molar ratio, adds an amount of water and citric acid then, and again 550 ℃ of calcinings 5 minutes, the cooling room temperature can make Mo after the drying
xCo
xMg
1-x-yThe O catalyst, but prepared specific surface area of catalyst, high porosity and catalyst activity are not high, and the CNT productive rate of generation is low.
Three, summary of the invention
The objective of the invention is: the catalyst that a kind of raw material is extensive, cost is low, particle diameter is controlled, catalytic activity is good is provided and is used to prepare the method for the CNT of the easy purifying of initial product.
For achieving the above object, the technical solution adopted in the present invention is:
With Co (NO
3)
26H
2O or CoSO
47H
2O and Mg (NO
3)
26H
2O or MgCl
26H
2O is mixed with alcosol or the alcoholic solution that molar concentration is 0.1～10mol/L and 0.2～15mol/L respectively, and both are mixing in 1: 50～1: 0.1 by volume, adds organic solvent and acid again in this mixture, stirs 1～36 hour; Put into autoclave, add supercritical medium, feed protective gas, under 80～320 ℃, 0.1～8MPa condition, kept 1～100 minute, emit supercritical medium, purge with protective gas and be cooled to room temperature, make Co/MgO binary aerogel catalyst.
Above-mentioned adding organic solvent and acid in this mixture, their volume ratio is a mixture: organic solvent: acid is (1～5): (1～4): (0～1); Organic solvent is a kind of in ethanol, methyl alcohol, ethylene glycol, the glycerine; Supercritical medium is ethanol or methyl alcohol or carbon dioxide; Acid be in nitric acid, sulfuric acid, hydrofluoric acid, acetic acid, the citric acid more than zero kind or zero kind; Protective gas is nitrogen or argon gas.
Method with Co/MgO binary aerogel Preparation of Catalyst CNT is that prepared Co/MgO binary aerogel is put into stove; feed protective gas; insulation during by heating rate to 600～1200 of 0.2～15 ℃/min ℃ changes logical mist, and temperature retention time is 1～200min.
Described mist is carbon source and diluent gas, and carbon-source gas is a kind of in methane, ethene, acetylene, the propylene, diluent gas be in hydrogen, argon gas, the nitrogen more than zero kind or zero kind; The volume ratio of diluent gas and carbon-source gas is 0～8: 1.
Because adopt technique scheme, the present invention has following advantage:
1, raw material Co (NO
3)
26H
3O, Mg (NO
3)
26H
2O, hydrofluoric acid, ethanol etc. have easily been bought on market, and cost is lower;
2, the proportioning of modulation binary aerogel presoma and control its process conditions preparation, the binary aerogel that makes have that particle diameter is controlled, catalytic activity good;
3, the carbon yield that makes the SWNT initial product is not less than 35wt%; SWNT content is not less than 90wt% behind the purifying;
4, the carbon yield that makes the multiple-wall carbon nanotube initial product is not less than 100wt%; SWNT content is not less than 95wt% behind the purifying;
The easy purifying of the initial product of the CNT that 5, makes.
Four, the specific embodiment
The present invention is further illustrated below in conjunction with embodiment:
Embodiment one
1, with the Co (NO of 0.2mol
3)
26H
2O is dissolved in the ethanolic solution of 1000ml, stirs 2～3 hours, makes Co (NO
3)
2Alcoholic solution is with the MgCl of 0.8mol
26H
2O adds the 1000ml ethylene glycol solution, is mixed with MgCl
2Alcosol, two liquid are mixing in 1: 1～1: 2 by volume, add ethanol and citric acid again in this mixture, and wherein: mixture: ethanol: the volume ratio of citric acid is (1～1.5): (2～3): (0.1～0.2), stirred 6～8 hours, and made magnesium cobalt binary colloidal sol.
The binary colloidal sol of 800～1000ml is put into autoclave, in still, add the ethanol of 1000ml, feed argon gas, under 100～120 ℃ and 5～6MPa condition, kept 50～60 minutes, emit the alcohol gas medium, to room temperature, make fluffy Co/MgO binary aerogel with argon purge.
2,20 gram Co/MgO binary aerogels are put into stove, feed nitrogen, insulation during by heating rate to 600～700 of 0.2～0.4 ℃/min ℃, change nitrogen into acetylene and argon gas mist, the volume ratio of acetylene and argon gas is 1: 1,, temperature retention time is 1～5min, make multiple-wall carbon nanotube, its carbon yield is 120wt%; SWNT content is 95wt% behind the purifying.
Embodiment two
1, with the CoSO of 2mol
47H
2The O solid is dissolved in the methanol solution of 200ml, stirs 1～2 hour, makes CoSO
4Alcosol is with the Mg (NO of 3mol
3)
26H
2The solid of O is put into the 350ml methanol solution, makes ferric sulfate colloidal sol.Both are mixing in 1: 40～1: 45 by volume, add methyl alcohol and hydrofluoric acid to this mixture again, and wherein: mixture: methyl alcohol: the volume ratio of hydrofluoric acid is: (4～5): (1～2): (0.8～1), stirred 30～32 hours, make dihydroxylic alcohols colloidal sol.
Get the alcosol of the above-mentioned 340ml that makes and put into autoclave, the methyl alcohol that in it, adds 100ml again, feed nitrogen, under 3～4MPa, 300～320 ℃ of conditions, kept 100～120 minutes, after emitting the methanol gas medium, be cooled to room temperature with the nitrogen purging, make fluffy Co/MgO binary aerogel.
2,10 gram Co/MgO binary aerogels are put into stove, in it, feed argon gas, insulation during by heating rate to 800～900 of 2～4 ℃/min ℃, change the mist of ventilating methane and hydrogen, methane and hydrogen volume ratio are 1: 3, temperature retention time is 10～15min, makes SWNT, and its carbon yield is 35wt%; SWNT content is 90wt% behind the purifying.
Embodiment three
1, with the Co (NO of 0.5mol
3)
26H
2The O solid adds in the glycerine solution of 800ml, stirs 1～2 hour, makes Co (NO
3)
2Solution takes by weighing the Mg (NO of 0.2mol
3)
26H
2The O solid adds in the glycerine solution of 1000ml, stirs 2～3 hours, makes Mg (NO
3)
2Solution.Both are mixing in 1: 0.4～1: 0.2 by volume, add ethylene glycol to this mixture again, and wherein: mixture: the volume ratio of ethylene glycol is (4.5～5): (1～1.5), stirred 24～26 hours, make glycol solution.
Get the solution of the above-mentioned 980ml that makes and put into autoclave, feed carbon dioxide, under 200～220 ℃, 1～2MPa condition, kept 10～15 minutes, emit carbon dioxide, be cooled to room temperature with the nitrogen purging, make fluffy Co/MgO binary aerogel.
2,5 gram Co/MgO binary aerogels are put into stove, feed nitrogen, insulation during by heating rate to 900～1000 of 6～8 ℃/min ℃, change the mist of logical ethene and hydrogen, ethene and hydrogen volume ratio are 1: 8, temperature retention time is 10～15min, makes multiple-wall carbon nanotube, and its carbon yield is 200wt%; SWNT content is 98wt% behind the purifying.
Embodiment four
1, with the CoSO of 0.6mol
47H
2The O solid adds the ethanolic solution of 800ml, stirs 4～5 hours, makes Co (NO
3)
2Solution is with the MgCl of 1mol
26H
2The O solid adds the ethanolic solution of 1000ml, stirs 6～7 hours, makes MgCl
2Solution, both mixed in 1: 1 by volume～1: 2, added glycerine and nitric acid to this mixture again, and wherein: the volume ratio of mixture, glycerine, nitric acid is respectively: (1～2): (3～4): (0.5～0.7), stirred 12～14 hours, and made glycol solution.
Get the solution of the above-mentioned 1000ml that makes and put into autoclave, the ethanol supercritical medium that adds 1500ml, feed argon gas, under 6～7MPa, 150～200 ℃ of conditions, kept 40～50 minutes, after emitting the ethanol supercritical medium, be cooled to room temperature with argon purge, make fluffy Co/MgO binary aerogel.
2,9 gram Co/MgO binary aerogels are put into stove, in it, feed nitrogen, insulation during by heating rate to 1100～1200 of 10～15 ℃/min ℃, change logical propylene gas, temperature retention time is 10～15min, makes SWNT, and its carbon yield is 50wt%; SWNT content is 95wt% behind the purifying.
Claims (9)
1, a kind of preparation is used for the method for the Co/MgO binary aerogel catalyst of CNT, it is characterized in that (the NO with Co
3)
26H
2O or CoSO
47H
2O and Mg (NO
3)
26H
2O or MgCl
26H
2O is mixed with alcosol or the alcoholic solution that molar concentration is 0.1～10mol/L and 0.2～15mol/L respectively, and both are mixing in 1: 50～1: 0.1 by volume, adds organic solvent and acid again in this mixture, stirs 1～36 hour; Put into autoclave, add supercritical medium, feed protective gas,, kept under 0.1～8MPa condition 1～100 minute, emit supercritical medium, purge with protective gas and be cooled to room temperature at 80～320 ℃.
2, preparation according to claim 1 is used for the method for the Co/MgO binary aerogel catalyst of CNT, it is characterized in that described organic solvent is a kind of in ethanol, methyl alcohol, ethylene glycol, the glycerine.
3, preparation according to claim 1 is used for the method for the Co/MgO binary aerogel catalyst of CNT, it is characterized in that described add in this mixture organic solvent and acid, their volume ratio is a mixture: organic solvent: acid equals (1～5): (1～4): (0～1).
4, preparation according to claim 1 is used for the method for the Co/MgO binary aerogel catalyst of CNT, it is characterized in that described supercritical medium is ethanol or methyl alcohol or carbon dioxide.
5, according to the method that is used for the Co/MgO binary aerogel catalyst of CNT according to claim 1 or 3 described preparations, it is characterized in that described acid be in nitric acid, sulfuric acid, hydrofluoric acid, acetic acid, the citric acid more than zero kind or zero kind.
6,, it is characterized in that described protective gas is nitrogen or argon gas according to the method that is used for the Co/MgO binary aerogel catalyst of CNT according to the described preparation of claim 1.
7, use the method for Co/MgO binary aerogel Preparation of Catalyst CNT; it is characterized in that described Co/MgO binary aerogel is put into stove; feed protective gas; insulation during by heating rate to 600～1200 of 0.2～15 ℃/min ℃; change logical mist, temperature retention time is 1～200min.
8, according to method according to the described usefulness of claim 7 Co/MgO binary aerogel Preparation of Catalyst CNT, it is characterized in that described mist is carbon source and diluent gas, carbon-source gas is a kind of in methane, ethene, acetylene, the propylene, and diluent gas is zero in hydrogen, argon gas, the nitrogen or more than zero kind.
9, the method with Co/MgO binary aerogel Preparation of Catalyst CNT according to claim 8, the volume ratio that it is characterized in that described diluent gas and carbon-source gas is 0～8: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100134337A CN100351012C (en) | 2004-07-08 | 2004-07-08 | Cobalt/magnesium oxide aerogel catalyst, and method for producing nano-carbon tube therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100134337A CN100351012C (en) | 2004-07-08 | 2004-07-08 | Cobalt/magnesium oxide aerogel catalyst, and method for producing nano-carbon tube therewith |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1718281A true CN1718281A (en) | 2006-01-11 |
| CN100351012C CN100351012C (en) | 2007-11-28 |
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ID=35930306
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100134337A Expired - Fee Related CN100351012C (en) | 2004-07-08 | 2004-07-08 | Cobalt/magnesium oxide aerogel catalyst, and method for producing nano-carbon tube therewith |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100351012C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017073A (en) * | 2017-12-27 | 2018-05-11 | 淮阴工学院 | A kind of method that magnesia aeroge is prepared using bischofite as raw material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261222C (en) * | 2001-12-19 | 2006-06-28 | 天津大学 | Process for preparing Al2O3 aerogel carried catalyst and its application in preparing nano carbon tubes by catalytic cracking of methane |
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2004
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017073A (en) * | 2017-12-27 | 2018-05-11 | 淮阴工学院 | A kind of method that magnesia aeroge is prepared using bischofite as raw material |
| CN108017073B (en) * | 2017-12-27 | 2019-08-23 | 淮阴工学院 | A method of magnesia aeroge is prepared by raw material of bischofite |
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| Publication number | Publication date |
|---|---|
| CN100351012C (en) | 2007-11-28 |
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