CN1559686A - Method of depositing high density loading metal platinum on carbon nanometer pipe surface using oriented chemistry - Google Patents
Method of depositing high density loading metal platinum on carbon nanometer pipe surface using oriented chemistry Download PDFInfo
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- CN1559686A CN1559686A CNA2004100083265A CN200410008326A CN1559686A CN 1559686 A CN1559686 A CN 1559686A CN A2004100083265 A CNA2004100083265 A CN A2004100083265A CN 200410008326 A CN200410008326 A CN 200410008326A CN 1559686 A CN1559686 A CN 1559686A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims description 74
- 229910052751 metal Inorganic materials 0.000 title claims description 19
- 239000002184 metal Substances 0.000 title claims description 19
- 238000000151 deposition Methods 0.000 title description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 24
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 24
- 239000004094 surface-active agent Substances 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 38
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 150000005846 sugar alcohols Polymers 0.000 claims description 6
- 238000010301 surface-oxidation reaction Methods 0.000 claims description 6
- 239000003945 anionic surfactant Substances 0.000 claims description 4
- 239000002608 ionic liquid Substances 0.000 claims description 4
- 239000002048 multi walled nanotube Substances 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 238000005119 centrifugation Methods 0.000 claims description 3
- PLMFYJJFUUUCRZ-UHFFFAOYSA-M decyltrimethylammonium bromide Chemical group [Br-].CCCCCCCCCC[N+](C)(C)C PLMFYJJFUUUCRZ-UHFFFAOYSA-M 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- HTPLIUHHIVJPGO-UHFFFAOYSA-K CCCCN1C=CN(C)C1.[B+3].[F-].[F-].[F-].F Chemical group CCCCN1C=CN(C)C1.[B+3].[F-].[F-].[F-].F HTPLIUHHIVJPGO-UHFFFAOYSA-K 0.000 claims description 2
- MDJFVTREQUSYIZ-UHFFFAOYSA-K CCN1C=CN(C)C1.[B+3].[F-].[F-].[F-].F Chemical compound CCN1C=CN(C)C1.[B+3].[F-].[F-].[F-].F MDJFVTREQUSYIZ-UHFFFAOYSA-K 0.000 claims description 2
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- PFAZBYZJSGICKL-UHFFFAOYSA-N [P].C(C)N1CN(C=C1)C Chemical compound [P].C(C)N1CN(C=C1)C PFAZBYZJSGICKL-UHFFFAOYSA-N 0.000 claims description 2
- FEFBTTLSGXQNRL-UHFFFAOYSA-N [P].C(CCC)N1CN(C=C1)C Chemical compound [P].C(CCC)N1CN(C=C1)C FEFBTTLSGXQNRL-UHFFFAOYSA-N 0.000 claims description 2
- KXNZYPBRSATHKV-UHFFFAOYSA-M hexadecyl(trimethyl)azanium;perchlorate Chemical compound [O-]Cl(=O)(=O)=O.CCCCCCCCCCCCCCCC[N+](C)(C)C KXNZYPBRSATHKV-UHFFFAOYSA-M 0.000 claims description 2
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 claims description 2
- FBEIPJNQGITEBL-UHFFFAOYSA-J tetrachloroplatinum Chemical compound Cl[Pt](Cl)(Cl)Cl FBEIPJNQGITEBL-UHFFFAOYSA-J 0.000 claims description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 18
- 239000003054 catalyst Substances 0.000 abstract description 13
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000005234 chemical deposition Methods 0.000 abstract description 2
- 229920005862 polyol Polymers 0.000 abstract 1
- 150000003077 polyols Chemical class 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 11
- 239000000047 product Substances 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000002105 nanoparticle Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 239000002082 metal nanoparticle Substances 0.000 description 3
- 239000002071 nanotube Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- GOMPLJOPYGQBPL-UHFFFAOYSA-K [F-].[F-].[F-].F.[B+3] Chemical compound [F-].[F-].[F-].F.[B+3] GOMPLJOPYGQBPL-UHFFFAOYSA-K 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 239000013528 metallic particle Substances 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 239000006250 one-dimensional material Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000001420 photoelectron spectroscopy Methods 0.000 description 2
- 238000001338 self-assembly Methods 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCSOLOXBVZDTSD-UHFFFAOYSA-N [Pt].C(CO)O Chemical compound [Pt].C(CO)O UCSOLOXBVZDTSD-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000003863 metallic catalyst Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 150000003057 platinum Chemical class 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
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Abstract
A process for carrying high-density Pt on the surface of carbon nanotube by directional chemical deposition features that the carbon nanotubes, platium chloride and surfactant take part in reaction in polyol to obtain a catalyst used for oxidization reaction of methanol with high electrocatalytic performance.
Description
Technical field
The present invention relates to a kind of new method that is deposited on the carbon nano tube surface loaded metal platinum by directed chemistry.
Background technology
Since Iijima in 1991 finds CNT, because optics, electricity, magnetics and the mechanical performance of its particular structure, excellence, CNT has caused people's extensive studies interest. the application of CNT has related to field (Baughman R.H. such as composite, FED, scanning microprobe needle point, nanometer electronic device, Chu Qing and catalyst carrier, et al, Science, 2002,297:787).Because CNT is the one-dimensional material with higher length diameter ratio (diameter is in tens nanometers, and length is that several microns are to a hundreds of micron) and hollow structure, therefore can make the one dimension composite of template for preparing novelty of it.For example utilize the capillarity of CNT some element can be packed in the pipe, also can coat the carbon mitron, can obtain having one-dimensional material (the van Bommel K.J.C. of special nature with different materials, et al, Angew.Chem.Int.Ed., 2003,42:980).
The method of supported precious metal nano-particle mainly contains two classes on CNT at present: infusion process and self-assembly method.Infusion process is that CNT is mixed with the solution of slaine, the dipping a period of time after with the solvent evaporate to dryness, again slaine is added thermal decomposition, reducing metal (Planeix under nitrogen atmosphere then, J.M., et al, J.Am.Chem.Soc., 1994,116:7935), perhaps thereby metal ion is reduced agent at solution and is reduced into metal and is deposited on and obtain Nano carbon tube-metal compound (LiWZ on the carbon nano tube surface, et al, J.Phys.Chem.B, 2003,107:6292), this method is widely used in the preparation of carbon nanotube loaded metallic catalyst.The shortcoming of this method is that carbon nano tube surface is difficult to obtain the even metal cover layer, and a large amount of metal nanoparticles take place to reunite and can not be attached on the CNT.CNT produces-COOH through the oxidation processes rear surface,-C=O, groups such as-OH become the nuclearing centre position of metal, but reduction reaction that can not catalytic metal ion, belong to deposition in carbon nano tube surface and GOLD FROM PLATING SOLUTION and carry out, thereby metal can not be realized orientated deposition (Ang L.M., et al with identical speed, Chem.Mater.1999,11:2115).Self-assembling method is that functionalized carbon nano tube surface combines with metal ion by complexing, then by electronation obtain metal (Giordano R., Eur.J.Inorg.Chem.2003:610); Or the anchor cooperation of metal nanoparticle by coupling molecule is with directly being assembled in functionalized carbon nano tube surface, this method is mainly used in carbon nano tube surface and coats Au, noble metals such as Rh (Jiang K.Y., et al, Nano Lett.2003,3:275).These class methods can realize the self assembly of nano-metal particle in carbon nano tube surface, but method is loaded down with trivial details, reaction condition is required relatively stricter, the cost height, and load factor is lower, particularly between CNT and the noble metal nano particles if use the coupling molecule contain sulphur atom to produce poisoning effect to catalytic reaction, thereby these class methods are very limited in the prospect that is applied to aspect the Preparation of catalysts.
Summary of the invention
The purpose of this invention is to provide a kind of new method at the directed chemical plated metal nano platinum particle of carbon nano tube surface, can avoid metallic particles self to reunite thus, realize carbon nano tube surface high density loaded metal platinum nano-particle, and be expected to be applied to field such as fuel cell as high activated catalyst.
Technical scheme provided by the invention is: by containing 0.1～10 gram CNT, 1～100 gram surfactant, 0.05～10 gram platinum (in the platinum containing amount in the slaine) in per 1 liter polyalcohol mixed liquor, CNT is mixed by ultrasonic being uniformly dispersed in polyalcohol with the chloride and the surfactant of platinum, under strong agitation, mixed liquor is heated to 120-180 ℃ then, react after 1～2 hour the product centrifugation, washing, vacuum drying then.
CNT is multi-walled carbon nano-tubes or SWCN, carries out earlier surface oxidation treatment before the reaction in strong acid solution.
Surfactant is a quaternary surfactant, and ionic liquid surfactant or anionic surfactant, said quaternary surfactant are DTAB, softex kw or cetyl trimethyl ammonium perchlorate; Said ionic liquid surfactant is 1-butyl-3-methylimidazole tetrafluoride boron, 1-ethyl-3-methylimidazole tetrafluoride boron, 1-butyl-3-methylimidazole phosphorus hexafluoride or 1-ethyl-3-methylimidazole phosphorus hexafluoride; Said anionic surfactant is a neopelex, dodecyl sodium sulfate, lauryl sodium sulfate or trifluoromethayl sulfonic acid sodium; The mixture of one or both in the above-mentioned surfactant of reaction employing.
The chloride of platinum is a chloroplatinic acid, potassium chloroplatinate, platinic sodium chloride, platinum tetrachloride or platinous chloride; Said polyalcohol is an ethylene glycol.
Advantage of the present invention is to realize that nano platinum particle in the directed chemical deposition of carbon nano tube surface, has solved metallic particles this technical barrier takes place self to reunite; Realized higher platinum load factor, and be evenly distributed; Can obtain fine and close nano platinum particle layer down in higher load factor (more than 50%), its particle size average out to 5nm, and Size Distribution is very narrow; Product can be used for eelctro-catalyst and other catalytic field of fuel cell.The catalyst prepared with the CNT after the present invention's modification has excellent performance for the methanol oxidation electrocatalytic reaction, obviously is better than similar commercialization catalyst E-TEK.
Description of drawings
The transmission electron microscope photo of the SWCN supported platinum nano particle product (load factor is 50%) that Fig. 1 makes for embodiment 1.
Fig. 2 is the constituent analysis result (EDS) of embodiment 1 product.
Fig. 3 is the result (XPS) of the photoelectron spectroscopy of platinum in embodiment 1 product.
Fig. 4 is that 50%Pt/SWNT catalyst with the preparation of the product of embodiment 1 is to the anodised catalytic performance cyclic voltammetry curve of methyl alcohol figure.
The specific embodiment
Embodiment 1:1) surface oxidation treatment of nanotube: the 1 gram SWCN (Chinese Academy of Sciences's metal provides) or the multi-walled carbon nano-tubes (department of chemistry of Xiamen University provides) of purifying are joined in the round-bottomed flask, add 200 milliliters in 2.6M nitric acid again, heating is boiled, refluxed about 4 hours, filter then, be washed to neutrality, 150 ℃ of dryings 2 hours, the CNT sample that obtains surface oxidation is standby.
2) nano tube supported nano platinum particle: in round-bottomed flask, add CNT 0.1 gram, DTAB 0.1 gram, chloroplatinic acid 0.1 gram and 1000ml ethylene glycol after surface oxidation treatment, place oil bath to add thermal agitation round-bottomed flask after the ultrasonic dispersion, react stop after 2 hours the reaction.
3) with after product centrifugation, the ethanol washing 3 times,, obtain end product 100 ℃ of following vacuum drying.Its nano platinum particle load factor is 50%.
From the visible dense nano platinum particle layer of the transmission electron microscope photo of Fig. 1 product, its particle size average out to 5nm; The constituent analysis result (EDS) of product is as can be known at the content of surperficial platinum quite high (signal of copper comes from copper mesh among the figure) among Fig. 2; Fig. 3 is the result (XPS) of the photoelectron spectroscopy of platinum in the product, by the result as can be known SWCN supported platinum nano particle valence state be zero.
With load the made of carbon nanotubes of nano platinum particle become the catalyst of 50%Pt/SWNT to carry out the anodised catalytic reaction of methyl alcohol.The electrode preparation method of this experiment and experiment condition are according to document (Prabhuram J., J.Phys.Chem.B 2003,107:11057) carry out, the platinum load capacity of bibliographical information is that the methanol oxidation peak current density (with respect to true area) of 20% commercialization catalyst E-TEK is lower than 0.33mA/cm
2(obtaining) according to result's reckoning in the literary composition, and the 50%Pt/SWNT of the present invention's preparation is used as catalyst, methanol oxidation peak current density is higher than 1.0mA/cm
2, E-TEK is high more than 3 times for this current value ratio commercialization catalyst, shows to adopt the carbon nanotube loaded nano platinum particle catalyst of the present invention's preparation to have very high catalytic activity (see figure 4).
Embodiment 2～8
The method of nano tube supported nano platinum particle is with embodiment 1, all the other conditions and the results are shown in Table 1:
Table 1
| Embodiment | CNT A | Surfactant B | Platinum salt C | Temperature (℃) | Reaction time (hour) | Ethylene glycol | Platinum load factor (%) | Platinum grain average-size (nm) | |||
| Kind | Content (gram) | Kind | Content (gram) | Kind | Content (gram) | ||||||
| ????1 | A1 | ??0.1 | B1 | ??0.1 | C1 | 0.1 | 170 | 2 | ??1000mL | ??50 | ??5 |
| ????2 | A1 | ??10 | B2 | ??5 | C2 | 2.5 | 130 | 1.5 | ??1000mL | ??20 | ??3 |
| ????3 | A1 | ??9 | B5 | ??10 | C1 | 1 | 150 | 1. | ??1000mL | ??10 | ??2.5 |
| ????4 | A1 | ??10 | B6 | ??8 | | 10 | 150 | 2 | ??1000mL | ??50 | ??5.5 |
| ????5 | ?A1 | ??4.5 | ?B9 | ??3 | ?C3 | ??0.5 | ??160 | ????2 | ?1000mL | ????10 | ????2.5 |
| ????6 | ?A1 | ??0.1 | ?B10 | ??0.1 | ?C4 | ??0.01 | ??150 | ????1 | ?1000mL | ????9 | ????2.8 |
| ????7 | ?A2 | ??0.4 | ?B3 | ??0.2 | ?C5 | ??0.4 | ??140 | ????2 | ?1000mL | ????50 | ????5 |
| ????8 | ?A2 | ??0.9 | ?B4 | ??1.2 | ?C2 | ??0.1 | ??150 | ????1 | ?1000mL | ????10 | ????2.4 |
| ????9 | ?A2 | ??5.7 | ?B7 | ??4 | ?C1 | ??0.3 | ??170 | ????1 | ?1000mL | ????5 | ????2 |
| ????10 | ?A2 | ??2 | ?B8 | ??2 | ?C2 | ??3 | ??130 | ????2 | ?1000mL | ????60 | ????6 |
| ????11 | ?A2 | ??8 | ?B11 | ??6 | ?C1 | ??2 | ??150 | ????2 | ?1000mL | ????20 | ????3 |
| ????12 | ?A2 | ??0.15 | ?B12 | ??0.2 | ?C4 | ??0.05 | ??150 | ????1 | ?1000mL | ????25 | ????4 |
Annotate: A:A1-SWCN, A2-multi-walled carbon nano-tubes
The B:B1-DTAB, the B2-softex kw, B3-cetyl trimethyl ammonium perchlorate, B4-tetrabutylammonium perchlorate, B5-1-butyl-3-methylimidazole tetrafluoride boron, B6-1-ethyl-3-methylimidazole tetrafluoride boron, B7-1-butyl-3-methylimidazole phosphorus hexafluoride, B8-1-ethyl-3-methylimidazole phosphorus hexafluoride, the B9-neopelex, the B10-dodecyl sodium sulfate, B11-lauryl sodium sulfate, B12-trifluoromethayl sulfonic acid sodium
The C:C1-chloroplatinic acid, C2-potassium chloroplatinate, C3-platinic sodium chloride, C4-platinum tetrachloride, C5-platinous chloride
Claims (7)
1. method that is deposited on carbon nano tube surface high density loaded metal platinum by directed chemistry, it is characterized in that by containing 0.1～10 gram CNT, 1～100 gram surfactant, 0.05～10 gram platinum (in the platinum containing amount in the slaine) in per 1 liter polyalcohol mixed liquor, CNT is mixed by ultrasonic being uniformly dispersed in polyalcohol with the chloride and the surfactant of platinum, mixed liquor is heated to 120-180 ℃ then, react after 1～2 hour the product centrifugation, washing, vacuum drying; Said surfactant is quaternary surfactant, ionic liquid surfactant or anionic surfactant, and one or both surfactant mixtures are adopted in reaction.
2. as claimed in claim 1ly a kind ofly be deposited on the method for carbon nano tube surface high density loaded metal platinum, it is characterized in that said CNT is multi-walled carbon nano-tubes or SWCN by directed chemistry.
3. as claimed in claim 1ly a kind ofly be deposited on the method for carbon nano tube surface high density loaded metal platinum, it is characterized in that CNT carries out surface oxidation treatment in advance by directed chemistry.
4. as claimed in claim 3ly a kind ofly be deposited on the method for carbon nano tube surface high density loaded metal platinum, it is characterized in that CNT carries out surface oxidation treatment in strong acid solution by directed chemistry.
5. a kind of method that is deposited on carbon nano tube surface high density loaded metal platinum by directed chemistry as claimed in claim 1, it is characterized in that said quaternary surfactant is a DTAB, softex kw, the cetyl trimethyl ammonium perchlorate; Said ionic liquid surfactant is 1-butyl-3-methylimidazole tetrafluoride boron, 1-ethyl-3-methylimidazole tetrafluoride boron, 1-butyl-3-methylimidazole phosphorus hexafluoride, 1-ethyl-3-methylimidazole phosphorus hexafluoride; Said anionic surfactant is a neopelex, dodecyl sodium sulfate, lauryl sodium sulfate, trifluoromethayl sulfonic acid sodium.
6. as claimed in claim 1ly a kind ofly be deposited on the method for carbon nano tube surface high density loaded metal platinum by directed chemistry, the chloride that it is characterized in that platinum is chloroplatinic acid, potassium chloroplatinate, platinic sodium chloride, platinum tetrachloride or platinous chloride.
7. as claimed in claim 1ly a kind ofly be deposited on the method for carbon nano tube surface high density loaded metal platinum, it is characterized in that said polyalcohol is an ethylene glycol by directed chemistry.
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| CN100434167C (en) * | 2005-11-17 | 2008-11-19 | 上海交通大学 | Method for preparing carbon nanometer material carried with noble metal(S) |
| CN100443402C (en) * | 2006-01-26 | 2008-12-17 | 上海交通大学 | Chemical shearing method for preparing high dispersion short carbon nanometer tube |
| CN102206162A (en) * | 2011-04-06 | 2011-10-05 | 北京理工大学 | Energy-containing oxidant and preparation method thereof |
| CN102219701A (en) * | 2011-04-18 | 2011-10-19 | 北京理工大学 | Energetic salt and preparation method thereof |
| US20120035388A1 (en) * | 2009-10-21 | 2012-02-09 | Dalian Institute Of Chemical Physics Chinese Academy Of Sciences | Platinum/carbon nanotube catalyst, the preparation process and use thereof |
| CN102554244A (en) * | 2012-03-12 | 2012-07-11 | 苏州大学 | Self-assembly controllable preparation method of metal nanoparticle and carbon material composite |
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