CN108927151A - The method for preparing golden platinum core-shell nanostructure material - Google Patents
The method for preparing golden platinum core-shell nanostructure material Download PDFInfo
- Publication number
- CN108927151A CN108927151A CN201810592583.XA CN201810592583A CN108927151A CN 108927151 A CN108927151 A CN 108927151A CN 201810592583 A CN201810592583 A CN 201810592583A CN 108927151 A CN108927151 A CN 108927151A
- Authority
- CN
- China
- Prior art keywords
- aqueous solution
- platinum core
- golden platinum
- shell nanostructure
- nanostructure material
- 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.)
- Pending
Links
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000011258 core-shell material Substances 0.000 title claims abstract description 23
- 239000002086 nanomaterial Substances 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 title claims abstract description 17
- 239000010931 gold Substances 0.000 claims abstract description 55
- 239000007864 aqueous solution Substances 0.000 claims abstract description 29
- 229910052737 gold Inorganic materials 0.000 claims abstract description 28
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 26
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims abstract description 20
- 239000000084 colloidal system Substances 0.000 claims abstract description 11
- 235000010323 ascorbic acid Nutrition 0.000 claims abstract description 9
- 239000011668 ascorbic acid Substances 0.000 claims abstract description 9
- 229960005070 ascorbic acid Drugs 0.000 claims abstract description 9
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000005119 centrifugation Methods 0.000 claims description 12
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 10
- 238000000746 purification Methods 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- 101710134784 Agnoprotein Proteins 0.000 claims description 7
- 239000013049 sediment Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 238000001246 colloidal dispersion Methods 0.000 claims description 2
- 238000003760 magnetic stirring Methods 0.000 claims description 2
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 claims 1
- 229930003268 Vitamin C Natural products 0.000 claims 1
- 235000019154 vitamin C Nutrition 0.000 claims 1
- 239000011718 vitamin C Substances 0.000 claims 1
- 239000002105 nanoparticle Substances 0.000 abstract description 25
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 230000003197 catalytic effect Effects 0.000 abstract description 9
- 238000004416 surface enhanced Raman spectroscopy Methods 0.000 abstract description 8
- 238000002360 preparation method Methods 0.000 abstract description 7
- 239000013078 crystal Substances 0.000 abstract description 6
- 238000011065 in-situ storage Methods 0.000 abstract description 6
- JUWSSMXCCAMYGX-UHFFFAOYSA-N gold platinum Chemical group [Pt].[Au] JUWSSMXCCAMYGX-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- 229910001961 silver nitrate Inorganic materials 0.000 abstract 1
- 238000000151 deposition Methods 0.000 description 17
- 235000013339 cereals Nutrition 0.000 description 16
- 230000008021 deposition Effects 0.000 description 15
- 239000002245 particle Substances 0.000 description 11
- 230000012010 growth Effects 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000011257 shell material Substances 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 238000000862 absorption spectrum Methods 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- GDSOZVZXVXTJMI-SNAWJCMRSA-N (e)-1-methylbut-1-ene-1,2,4-tricarboxylic acid Chemical compound OC(=O)C(/C)=C(C(O)=O)\CCC(O)=O GDSOZVZXVXTJMI-SNAWJCMRSA-N 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- -1 halide ion Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/48—Silver or gold
- B01J23/52—Gold
-
- B01J35/396—
-
- B01J35/50—
Abstract
The invention discloses a kind of methods for preparing golden platinum core-shell nanostructure material, using gold nano grain as template, gold nano-particle colloid and silver nitrate, dodecyl trimethyl ammonium chloride, aqueous ascorbic acid are sufficiently mixed, backward mixed solution in chloroplatinic acid aqueous solution is added, Pt atom is restored and is deposited in gold nano grain surface in situ, platinum is realized by the temperature of regulation reaction to deposit in gold nano-material surface different location accuracy controlling, and the golden platinum core-shell nanostructure with different Pt covering has been prepared.The present invention has the nanogold of high crystal plane structure as template using structure is complicated; prepare the hexakisooctahedron gold platinum core shell nanoparticles with efficient catalytic performance; process is simple, and the Au@Pt nano particle of preparation also has good catalytic performance and SERS performance simultaneously.
Description
Technical field
The present invention relates to nano material preparations, and in particular to a method of prepare golden platinum core-shell nanostructure material.
Background technique
A large amount of experiment and theoretical research show the form and structure feature of the bimetal nano particles based on Pt in recent years
Affect the characteristic of itself.The bimetallic catalytic performance with higher of complicated Pt with high crystal face has researcher to find two
Decahedron Pt3The ORR of N catalyst is than face-centered cubic Pt3The area specific activity of Ni catalyst is higher by 50% or so.Increased according to SERS
Strong mechanism can obtain the electromagnetic field significantly increased at metal nano material tip or at nanoscale gap, in these " heat
Excellent SERS performance is shown at point ".Compared to the simple gold nano structure such as spherical, rodlike, complicated high crystal face
It is nanocrystalline that also there is more abundant enhancing hot spot, it is more excellent SERS active material, while can also provide bigger
Specific surface area and richer surface crystal plane structure.Therefore, golden platinum bimetallic nucleocapsid is prepared based on labyrinth gold nano grain
Nanostructure is expected to prepare while having the composite material of high catalysis and SERS performance.However, about labyrinth Jenner is based on
Rice grain prepares the method for golden platinum bimetallic core-shell nano at present almost without the covering position on nanoparticle template surface of Pt
The catalytic performance influence set for the bimetallic core-shell material of golden platinum is very big.Currently, growth position of the control Pt on nanocrystal
There are two types of the main paths set：First is that the deposition rate of Pt-Pt is controlled by CO, second is that blocking by halide ion specific
Plane of crystal, these methods realize Pt in nano grain surface selective deposition, but make by introducing specific chemical reagent
Gold nanoparticle template structure is simple, and the regulation of Pt deposition position is inaccurate, and method process is complicated.
Summary of the invention
Goal of the invention：The object of the present invention is to provide a kind of methods for preparing golden platinum core-shell nanostructure material, solve mesh
It is preceding not using labyrinth gold nano grain as template and accuracy controlling Pt deposition position, process simply prepares golden platinum nucleocapsid and receives
The problem of rice structural material method.
Technical solution：The method of the present invention for preparing golden platinum core-shell nanostructure material, includes the following steps：
(1) hexakisooctahedron gold nano grain ultrasonic disperse obtains colloid in pure water；
(2) by gained colloidal dispersions in water, CTAC aqueous solution, AgNO are sequentially added into solution3Aqueous solution and anti-bad
Hematic acid aqueous solution, is subsequently placed in insulating box and stirs, and H is then added2PtCl6Aqueous solution, which continues stirring, to be made sufficiently to react；
(3) by the resulting product centrifugal purification of step (1), and sediment is dispersed in water again and obtains golden platinum nucleocapsid
Nano structural material.
Wherein, calorstat temperature is 17-21 DEG C when wedge angle deposits Pt in the step (2), insulating box when marginal deposit Pt
Temperature is 24-27 DEG C, and calorstat temperature is 32-70 DEG C when depositing Pt on face.Hexakisooctahedron gold nano grain in the step 1
Diameter is 300 ± 30nm, and the mass concentration of colloid is 0.15-0.25mg/mL.The concentration of the CTAC aqueous solution is 150-
250mM, AgNO3The concentration of aqueous solution is 1.5-3mM, and the concentration of aqueous ascorbic acid is 80-150 mM.The step (2)
Middle colloid and CTAC aqueous solution, AgNO3The volume ratio of aqueous solution and aqueous ascorbic acid is 1mL:0.5mL:8-20μL:40μ
L.Magnetic stirring apparatus is used in the step (2), H is added after first stirring 1.5-2h in revolving speed 350-600rpm2PtCl6Aqueous solution
Continue stirring stirring 2-3h.In the step (3), centrifuge speed 1400-1600rpm, centrifugation time 5-10min when centrifugation.
Beneficial effect：The present invention has the nanogold of high crystal plane structure as template using structure is complicated, and preparing has
The hexakisooctahedron gold platinum core shell nanoparticles of efficient catalytic performance, the present invention control accurate control Pt in hexakisooctahedron by temperature
Gold nano grain and flower-shaped gold nano grain wedge angle, seamed edge, the in-situ reducing on face and accurate deposition, process is simple, preparation
Au@Pt nano particle also has good catalytic performance and SERS performance simultaneously.
Detailed description of the invention
Fig. 1 is the Au@Pt nano particle SEM figure of embodiment 1-4 preparation；
Fig. 2 is the Au@Pt nano particle TEM figure of embodiment 1-4 preparation；
Fig. 3 n is the absorption spectrogram that embodiment 1-4 prepares Au Pt nano particle；
Fig. 3 k is the atomic ratio that embodiment 1-4 prepares that Pt in Au@Pt nano particle accounts for entire particle；
Fig. 4 a is the reaction rate figure that embodiment 1-4 prepares Au@Pt nano particle catalysis MB；
Fig. 4 b is the SERS map that embodiment 1-4 prepares Au@Pt nano particle；
Fig. 5 is flower-like nanometer gold and reaction temperature is the SEM figure of the Au@Pt nano particle prepared at 25 DEG C, 50 DEG C.
Specific embodiment
Below with reference to embodiment and attached drawing, the invention will be further described.
Embodiment 1
Based on temperature regulation in the reduction of hexakisooctahedron gold nano grain surface in situ and the accurate deposition Pt on wedge angle, formed
The golden platinum core-shell nanostructure that Pt is covered on wedge angle, using following steps：
(1) it takes 1mL hexakisooctahedron gold nano-particle colloid to be diluted in 3.5mL water, then sequentially adds 500 μ L's
200mM CTAC aqueous solution, the 2mM AgNO of 10 μ L3The 100mM ascorbic acid solution of aqueous solution and 40 μ L, mixed liquor magnetic force stir
Mix 1.5h, speed of agitator 600rpm.Entire reaction carries out in 20 DEG C of environment, wherein mM is writing a Chinese character in simplified form for mmol/L.
(2) by the 10mM H of 60 μ L2PtCl6Aqueous solution is added in step (1), is maintained 20 DEG C of reaction temperatures and is continued to hold
Continuous stirring 2h；
(3) the product centrifugation of step 2) is purified 3 times, centrifugal rotational speed 1400, centrifugation time 10min.It will after purification
Sediment is dispersed in again in 1mL water, and product is the golden core platinum-shell nanometer particle that Pt is only deposited on apex angle, and surface topography is such as
Shown in Fig. 1 a and Fig. 2 a.
Embodiment 2
Based on temperature regulation in the reduction of hexakisooctahedron gold nano grain surface in situ and the accurate deposition Pt on seamed edge, formed
The golden platinum core-shell nanostructure that Pt is covered on seamed edge, using following steps：
(1) it takes 1mL hexakisooctahedron gold nano-particle colloid to be diluted in 3.5mL water, then sequentially adds 500 μ L's
200mM CTAC aqueous solution, the 2mM AgNO of 10 μ L3The 100mM ascorbic acid solution of aqueous solution and 40 μ L, mixed liquor magnetic force stir
Mix 2h, speed of agitator 400rpm.Entire reaction carries out in 25 DEG C of environment.
(2) by the 10mM H of 60 μ L2PtCl6Aqueous solution is added in step (1), is maintained 25 DEG C of reaction temperatures and is continued to hold
Continuous stirring 2h；
(3) by the product centrifugation of step 2) purification 3 times, centrifugal rotational speed 1600rpm, centrifugation time 5min.After purification
Sediment is dispersed in again in 1mL water, product is the golden core platinum-shell nanometer particle that Pt is only deposited on seamed edge, surface topography
As shown in Fig. 1 a and Fig. 2 a.
Embodiment 3
It is restored and accurate deposition Pt on the whole based on temperature regulation in hexakisooctahedron gold nano grain surface in situ, forming face
Upper covering Pt and shaggy golden platinum core-shell nanostructure, using following steps：
(1) it takes 1mL hexakisooctahedron gold nano-particle colloid to be diluted in 3.5mL water, then sequentially adds 500 μ L's
200mM CTAC aqueous solution, the 2mM AgNO of 10 μ L3The 100mM ascorbic acid solution of aqueous solution and 40 μ L, mixed liquor magnetic force stir
Mix 1.5h, speed of agitator 600rpm.Entire reaction carries out in 35 DEG C of environment.
(2) by the 10mM H of 60 μ L2PtCl6Aqueous solution is added in step (1), is maintained 35 DEG C of reaction temperatures and is continued to hold
Continuous stirring 2h；
(3) by the product centrifugation of step 2) purification 3 times, centrifugal rotational speed 1600rpm, centrifugation time 5min.After purification
Sediment is dispersed in again in 1mL water, product is to be deposited with Pt and shaggy golden core platinum-shell nanometer particle, table on the whole
Face pattern is as shown in Fig. 1 c and Fig. 2 c.
Embodiment 4
It is restored and accurate deposition Pt on the whole based on temperature regulation in hexakisooctahedron gold nano grain surface in situ, forming face
Upper covering Pt and the smooth golden platinum core-shell nanostructure in surface, using following steps：
(1) it takes 1mL hexakisooctahedron gold nano-particle colloid to be diluted in 3.5mL water, then sequentially adds 500 μ L's
200mM CTAC aqueous solution, the 2mM AgNO of 10 μ L3The 100mM ascorbic acid solution of aqueous solution and 40 μ L, mixed liquor magnetic force stir
Mix 1.5h, speed of agitator 600rpm.Entire reaction carries out in 50 DEG C of environment.
(2) by the 10mM H of 60 μ L2PtCl6Aqueous solution is added in step (1), is maintained 50 DEG C of reaction temperatures and is continued to hold
Continuous stirring 2h；
(3) by the product centrifugation of step 2) purification 3 times, centrifugal rotational speed 1400rpm, centrifugation time 10min.After purification
Sediment is dispersed in again in 1mL water, product is to be deposited with the smooth golden core platinum-shell nanometer particle of Pt and surface, table on the whole
Face pattern is as shown in Fig. 1 d and Fig. 2 d.
Embodiment 1-4 reaches deposition position of the control Pt in hexakisooctahedron nanogold by controlling temperature, realizes six
Pt is deposited in octahedra nanogold vertex, edge and entire surface, in Pt deposition process, thin Ag layers on Au nano-form are logical
It crosses spontaneous ionization and is oxidized to Ag ion, to provide electronics to Pt ion, restore Pt atom.Due to brilliant between Pt and Au
The mismatch of lattice structure is very big, and the interaction between Pt and Pt is greater than interaction between Pt and Au, thus Pt with
Island growth mode is deposited, and similar cotton-shaped sediment is formed.In addition, different location has on hexakisooctahedron gold nano grain
There is different surface energy, is followed successively by tip, edge and center surface from high to low. Pt4+It is high to be preferentially trapped in surface energy
It is reacted with Ag position.At 20 DEG C of lower temperature, Pt is promoted to be deposited on hexakisooctahedron Jenner under conditions of dynamics Controlling
In rice grain, and Pt ion can be by the tip catch of the hexakisooctahedron gold nano grain with highest face temperature energy, so causing
Pt ion is preferentially adsorbed on tip, is then reduced and is deposited.The raising of temperature results in the acceleration and Pt deposition speed of reaction
The increase of rate.When particle is in 25 DEG C of temperature growths, Pt starts have higher table under thermodynamics and dynamics collective effect
It is deposited in the grain edges of face energy.When particle is in 35 DEG C of growths, since Pt deposition rate is too fast and tip and edge
Space it is limited, so Pt atom is diffused into the surface of Au nano-form.As growth temperature is increased to 50 DEG C, Pt atom with
Machine warm-up movement is substantially speeded up, and diffusion of the Pt atom on interface is more violent, so as to cause covering more on entire gold particle
It is fine and close and Pt layers continuous.
The absorption line of the corresponding particle of embodiment 1-4 is shown in Fig. 3 n.Show Au@Pt nano particle under different temperatures
Absorption line can delicately reflect very much Pt the phenomenon that depositing on Au HNPs by the variation of absorption spectrum.According to
Pt in particle deposits degree, and the peak LSPR corresponds to the red shift of Au HNPs from 658nm and corresponds to 20 DEG C of Au@Pt to 670nm
NPs.When growth temperature is increased to 25 DEG C, the corresponding LSPR frequency band of 25 DEG C of Au@Pt broadens, and the further red shift peak of LSPR peak position is extremely
815nm.When growth temperature is increased to 35 DEG C, the LSPR frequency band further expansion and LSPR peak position of 35 DEG C of Au@Pt NPs is red
Move to 985nm.The absorption spectrum of 50 DEG C of Au@Pt NPs shows extremely wide bands of a spectrum in the near infrared region (NIR).It can according to Fig. 3 k
It is increased with finding out that the Pt of the Au@Pt nano particle of 4 kinds of structures accounts for the specific gravity of entire material with the raising of temperature.Fig. 4 a is shown
The catalytic performance of Au the@Pt nano particle and commercial catalysts Pt-C of each structure, it can be seen that the Au@Pt nano particle of each structure
With good catalytic performance.Reaction temperature is preparation Au@Pt nano particle catalytic performance point at 20 DEG C, 25 DEG C, 35 DEG C, 50 DEG C
It Yue Wei not be 0.9,2.5,9,3.1 times of commercial catalysts Pt-C.Fig. 4 b shows the SERS of the Au@Pt nano particle of each structure
Performance.Make Pt selective deposition using flower-shaped Au@Pt NPs prepared by the method for identical temperature control.Fig. 5 a is flower-shaped Au NPs, figure
5b is that 25 DEG C of Au@Pt NPs lamella marginal growth Pt, Fig. 5 c are preparation side on 50 DEG C of entire particles of Au@Pt NPs, Pt covering
Method is different except Au template, and the numerical value of Pt deposition temperature control method and each reagent is all.Show temperature control method selection deposition Pt flower-shaped
Au template is equally applicable.
Claims (7)
1. a kind of method for preparing golden platinum core-shell nanostructure material, which is characterized in that include the following steps：
(1) hexakisooctahedron gold nano grain ultrasonic disperse obtains colloid in pure water；
(2) by gained colloidal dispersions in water, CTAC aqueous solution, AgNO are sequentially added into solution3Aqueous solution and Vitamin C sour water
Solution is subsequently placed in insulating box and stirs, and H is then added2PtCl6Aqueous solution, which continues stirring, to be made sufficiently to react；
(3) by the resulting product centrifugal purification of step (1), and sediment is dispersed in water again and obtains golden platinum core-shell nano
Structural material.
2. the method according to claim 1 for preparing golden platinum core-shell nanostructure material, which is characterized in that the step
(2) calorstat temperature is 17-21 DEG C when wedge angle deposits Pt in, and calorstat temperature is 24-27 DEG C when marginal deposit Pt, is deposited on face
Calorstat temperature is 32-70 DEG C when Pt.
3. the method according to claim 1 for preparing golden platinum core-shell nanostructure material, which is characterized in that the step 1
In hexakisooctahedron gold nano grain diameter be 300 ± 30nm, the mass concentration of colloid is 0.15-0.25mg/mL.
4. the method according to claim 1 for preparing golden platinum core-shell nanostructure material, which is characterized in that the CTAC water
The concentration of solution is 150-250mM, AgNO3The concentration of aqueous solution is 1.5-3mM, and the concentration of aqueous ascorbic acid is 80-
150mM。
5. the method according to claim 1 for preparing golden platinum core-shell nanostructure material, which is characterized in that the step
(2) colloid and CTAC aqueous solution, AgNO in3The volume ratio of aqueous solution and aqueous ascorbic acid is 1mL:0.5mL:8-20μL:
40μL。
6. the method according to claim 1 for preparing golden platinum core-shell nanostructure material, which is characterized in that the step
(2) magnetic stirring apparatus is used in, H is added after first stirring 1.5-2h in revolving speed 350-600rpm2PtCl6Aqueous solution continues to stir
Mix 2-3h.
7. the method according to claim 1 for preparing golden platinum core-shell nanostructure material, which is characterized in that the step
(3) in, centrifuge speed 1400-1600rpm, centrifugation time 5-10min when centrifugation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810592583.XA CN108927151A (en) | 2018-06-08 | 2018-06-08 | The method for preparing golden platinum core-shell nanostructure material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810592583.XA CN108927151A (en) | 2018-06-08 | 2018-06-08 | The method for preparing golden platinum core-shell nanostructure material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108927151A true CN108927151A (en) | 2018-12-04 |
Family
ID=64449539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810592583.XA Pending CN108927151A (en) | 2018-06-08 | 2018-06-08 | The method for preparing golden platinum core-shell nanostructure material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108927151A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202163A (en) * | 2019-05-21 | 2019-09-06 | 山东理工大学 | A kind of preparation method of Ag@Au@Pd nano cubic hollow shell structure |
| CN110434354A (en) * | 2019-08-15 | 2019-11-12 | 安徽师范大学 | A kind of Au-Pt nano particle of tubulose core-shell structure and its preparation method and application |
| CN112756623A (en) * | 2020-12-31 | 2021-05-07 | 杭州电子科技大学 | Synthesis method of gold-platinum material with special structure |
| CN112809018A (en) * | 2020-12-31 | 2021-05-18 | 杭州电子科技大学 | Synthesis method of gold-platinum bimetallic structure material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009078815A1 (en) * | 2007-12-14 | 2009-06-25 | Nanyang Technological University | A nanostructured material loaded with noble metal particles |
| CN103331453A (en) * | 2013-07-01 | 2013-10-02 | 南京邮电大学 | Preparation method for precious metal/tin dioxide nano composite |
| CN103639407A (en) * | 2013-12-13 | 2014-03-19 | 苏州大学张家港工业技术研究院 | Tri-metal nanoparticle and preparation method thereof |
| CN105665744A (en) * | 2016-03-22 | 2016-06-15 | 安徽师范大学 | Preparing method for gold nanometer bipyramids |
| CN106862581A (en) * | 2015-12-10 | 2017-06-20 | 济南大学 | A kind of concave surface gold@silver platinum Heterogeneous Composite nano-particles with superior catalytic and absorbing properties and preparation method thereof |
| CN107138155A (en) * | 2017-05-08 | 2017-09-08 | 浙江理工大学 | A kind of core shell structure Ag@TiO2@Pt nano composite materials |
-
2018
- 2018-06-08 CN CN201810592583.XA patent/CN108927151A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009078815A1 (en) * | 2007-12-14 | 2009-06-25 | Nanyang Technological University | A nanostructured material loaded with noble metal particles |
| CN103331453A (en) * | 2013-07-01 | 2013-10-02 | 南京邮电大学 | Preparation method for precious metal/tin dioxide nano composite |
| CN103639407A (en) * | 2013-12-13 | 2014-03-19 | 苏州大学张家港工业技术研究院 | Tri-metal nanoparticle and preparation method thereof |
| CN106862581A (en) * | 2015-12-10 | 2017-06-20 | 济南大学 | A kind of concave surface gold@silver platinum Heterogeneous Composite nano-particles with superior catalytic and absorbing properties and preparation method thereof |
| CN105665744A (en) * | 2016-03-22 | 2016-06-15 | 安徽师范大学 | Preparing method for gold nanometer bipyramids |
| CN107138155A (en) * | 2017-05-08 | 2017-09-08 | 浙江理工大学 | A kind of core shell structure Ag@TiO2@Pt nano composite materials |
Non-Patent Citations (1)
| Title |
|---|
| 张风收: ""铂基催化剂控制合成及其快速宏量制备工艺开发"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202163A (en) * | 2019-05-21 | 2019-09-06 | 山东理工大学 | A kind of preparation method of Ag@Au@Pd nano cubic hollow shell structure |
| CN110202163B (en) * | 2019-05-21 | 2023-03-21 | 山东理工大学 | Preparation method of Ag @ Au @ Pd nano cubic hollow shell structure |
| CN110434354A (en) * | 2019-08-15 | 2019-11-12 | 安徽师范大学 | A kind of Au-Pt nano particle of tubulose core-shell structure and its preparation method and application |
| CN112756623A (en) * | 2020-12-31 | 2021-05-07 | 杭州电子科技大学 | Synthesis method of gold-platinum material with special structure |
| CN112809018A (en) * | 2020-12-31 | 2021-05-18 | 杭州电子科技大学 | Synthesis method of gold-platinum bimetallic structure material |
| CN112809018B (en) * | 2020-12-31 | 2023-08-11 | 杭州电子科技大学 | Synthesis method of gold-platinum bimetallic structural material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108927151A (en) | The method for preparing golden platinum core-shell nanostructure material | |
| Fiévet et al. | The polyol process: a unique method for easy access to metal nanoparticles with tailored sizes, shapes and compositions | |
| Zhang et al. | Shape-controlled synthesis of Au–Pd bimetallic nanocrystals for catalytic applications | |
| Wang et al. | Rational design and synthesis of noble-metal nanoframes for catalytic and photonic applications | |
| Wu et al. | Sophisticated construction of Au islands on Pt–Ni: an ideal trimetallic nanoframe catalyst | |
| Zhang et al. | Highly branched concave Au/Pd bimetallic nanocrystals with superior electrocatalytic activity and highly efficient SERS enhancement. | |
| Jia et al. | Colloidal metal nanoparticles as a component of designed catalyst | |
| Biacchi et al. | The solvent matters: kinetic versus thermodynamic shape control in the polyol synthesis of rhodium nanoparticles | |
| Bhol et al. | Modern chemical routes for the controlled synthesis of anisotropic bimetallic nanostructures and their application in catalysis | |
| Yu et al. | Architectural Design of Heterogeneous Metallic Nanocrystals Principles and Processes | |
| Wu et al. | Solvothermal synthesis of uniform bismuth nanospheres using poly (N-vinyl-2-pyrrolidone) as a reducing agent | |
| US11311939B2 (en) | Method for fabrication of copper-silver and copper-gold porous microsheets | |
| Liu et al. | Bimetallic Ag–hollow Pt heterodimers via inside-out migration of Ag in core–shell Ag–Pt nanoparticles at elevated temperature | |
| Liu | Cu 2 O microcrystals: a versatile class of self-templates for the synthesis of porous Au nanocages with various morphologies | |
| Jung et al. | Strategic synergy: advances in the shape control of bimetallic nanoparticles with dilute alloyed surfaces | |
| Sreedhala et al. | Structure sensitive chemical reactivity by palladium concave nanocubes and nanoflowers synthesised by a seed mediated procedure in aqueous medium | |
| Zhang et al. | Novel Au catalysis strategy for the synthesis of Au@ Pt core–shell nanoelectrocatalyst with self-controlled quasi-monolayer Pt skin | |
| CN107537517A (en) | A kind of alloy colloid and preparation method and application | |
| CN109364936B (en) | M with multi-shell hollow core-shell cubic structure1.8M′1.2O4@CeO2Composite material and preparation method thereof | |
| Tang et al. | Metallic nanoparticles as advanced electrocatalysts | |
| Eid et al. | Nanoarchitectonic metals | |
| Liu et al. | Core-shell Ag–Pt nanoparticles: A versatile platform for the synthesis of heterogeneous nanostructures towards catalyzing electrochemical reactions | |
| Li et al. | Shape-controlled synthesis of platinum-based nanocrystals and their electrocatalytic applications in fuel cells | |
| Song et al. | Controlled synthesis of PtNi hexapods for enhanced oxygen reduction reaction | |
| CN112893863B (en) | Preparation method of gold platinum nano material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181204 |