CN101775647A - Gold nano-crystal and preparation method thereof - Google Patents
Gold nano-crystal and preparation method thereof Download PDFInfo
- Publication number
- CN101775647A CN101775647A CN 201010107908 CN201010107908A CN101775647A CN 101775647 A CN101775647 A CN 101775647A CN 201010107908 CN201010107908 CN 201010107908 CN 201010107908 A CN201010107908 A CN 201010107908A CN 101775647 A CN101775647 A CN 101775647A
- Authority
- CN
- China
- Prior art keywords
- crystal
- gold nano
- preparation
- reaction vessel
- dodecahedron
- 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.)
- Granted
Links
Images
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Catalysts (AREA)
Abstract
The invention provides a squeezed dodecahedral gold nano-crystal, which comprises six trapezoid surfaces and six rhombus surfaces. The rhombus faces are all single crystal (110) surfaces, and the trapezoid surfaces are all single twin crystal (110) surfaces. The invention also provides a preparation method of the squeezed dodecahedral gold nano-crystal, which comprises the following steps: adding N, N-dimethyl formamide into a reaction vessel and heating up to the temperature of 100-150 DEG C for a first circumfluence; dropping N, N-dimethyl formamide solution of chlorogold acid into the N, N-dimethyl formamide, making the solution react under the temperature of 100-150 DEG C and then performing a second circumfluence; and stopping the reaction when the solution in the reaction vessel turns into glassy yellow, and collecting the gold nano-crystal settlings. The squeezed dodecahedral gold nano-crystal prepared by the method has the advantages of high surface performance and good catalytic property.
Description
Technical field
The present invention relates to the metal nano material field, particularly a kind of extruding dodecahedron gold nano-crystal and preparation method thereof.
Background technology
Metal nano material and body metallic substance are mutually compared and are had excellent catalysis, optics, electronics and magnetic performance, especially gold nano-material and be widely used in a plurality of fields such as catalysis, electronics, optics and biotechnology.Because the performance of metal nano material is mutually close with its crystal morphology], therefore prepare gold nano-crystal material and cause people's extensive concern with specific modality, equal 2004 at Angew.Chem. as Kim, Int.Ed. the 43rd volume 3673-3677 page or leaf has been reported the preparation of tetrahedron gold nano-crystal; Li equals 2007 at Angew.Chem., and Int.Ed. the 46th volume 3264-3268 page or leaf has been reported the preparation of octahedra gold nanocrystals; Sanchez-Iglesias equals to report at Adv.Mater. the 18th volume 2529-2534 page or leaf in 2006 the preparation of decahedron gold nanocrystals; Xu equals to report at Adv.Funct.Mater. the 18th volume 277-284 page or leaf in 2008 the preparation of icosahedron gold nanocrystals; Seo equals 2008 at Angew.Chem., and Int.Ed. the 47th volume 763-767 page or leaf has been reported the preparation of cubes gold nanocrystals; Jeong equals to report at J.Am.Chem.Soc. the 131st volume 1672-1673 page or leaf in 2009 the preparation of rhombic dodecahedron gold nano-crystal.
The crystalline structure of gold belongs to face-centered cubic crystal, face-centered cubic crystal comprises three fundamental planes, be respectively: (111) crystal face, (100) crystal face and (110) crystal face, (111) the Atomic coordinate number is respectively 9,8,7 on crystal face, (100) crystal face, (110) crystal face, and the Atomic coordinate number is few more on the crystal face, and crystal plane structure is more open, has more high surface energy, tend to more in conjunction with other material, chemically reactive is also high more, for example can improve catalytic efficiency as catalyzer.Each crystal face of above-mentioned tetrahedron gold nano-crystal, octahedra gold nano-crystal and decahedron gold nano-crystal is (111) crystal face, and surface energy is lower.Though above-mentioned rhombic dodecahedron gold nano-crystal crystal face is (110) crystal face, but be monocrystalline (110) face, do not possess twin structure, and the nanocrystalline cognition of twin structure shows excellence in the many character of the crystalline of single crystal structure, twin boundaries in for example silver-colored nanocrystal can be used as the passage of atom nanoscale inside or that outwards transmit, and the nano level twin of Copper Foil middle-high density can improve its physical strength etc. greatly.
Summary of the invention
The technical problem that the present invention solves is, provide a kind of surface energy higher, and gold nano-crystal with substance twin structure, described gold nano-crystal is the extruding dodecahedron, the extruding dodecahedro is a kind of dodecahedron that Polish mathematician Steinhaus proposes in his works " Mathematical Snapshots ", English by name quashed dodecahedron, it be by 6 trapezoidal faces and 6 lozenges totally 12 faces constitute.Lozenge in the described extruding dodecahedron gold nano-crystal is monocrystalline (110) face, the equal substance twin of trapezoidal faces (110) face, and the lattice tension force that the twin defective causes can influence the valence energy level of gold nano-crystal, thus improve its catalytic performance.
The present invention also provides a kind of preparation method who pushes the dodecahedron gold nano-crystal, comprising:
A), with N, dinethylformamide adds and to be heated to 100 ℃～155 ℃ in the reaction vessel and to carry out backflow first time;
B), with the N of hydrochloro-auric acid, dinethylformamide solution splashes into the N after the backflow, in the dinethylformamide, reacts and carries out the second time at 100 ℃～150 ℃ and reflux;
C), solution becomes stopped reaction behind the glassy yellow in the reaction vessel, collects the gold nano-crystal precipitation.
Preferably, step a) is carried out in oil bath.
Preferably, the N that uses in the step a), the purity of dinethylformamide is not less than 99.5%.
Preferably, the N of hydrochloro-auric acid in the step b), the concentration of dinethylformamide solution be 17.76 mmoles/liter～17.82 mmoles/liter.
Preferably, reacting and carry out the temperature that refluxes the second time in the step b) is 120 ℃～150 ℃.
Preferably, step b) is carried out in oil bath.
Preferably, be provided with agitator in the described reaction vessel.
Preferably, with N, dinethylformamide also comprises before adding reaction vessel: described reaction vessel and agitator are carried out drying described in the step a).
Preferably, also comprise: gold nano-crystal precipitation washing after drying.
The invention provides a kind of extruding dodecahedron gold nano-crystal, because described crystal is made up of 6 trapezoidal faces and 6 lozenges, and lozenge is monocrystalline (110) face, trapezoidal faces is substance twin (110) face, plane of crystal can be higher, and the lattice tension force that the twin defective causes can influence the valence energy level of gold nano-crystal, and then further improves its catalytic performance.
The present invention also provides the preparation method of above-mentioned extruding dodecahedron gold nano-crystal, and Zhi Bei extruding dodecahedron gold nano-crystal surface energy is higher according to the method described above, and catalytic performance is good.
Description of drawings
Fig. 1 overlooks sem photograph for the extruding dodecahedron gold nano-crystal that the embodiment of the invention provides;
The extruding dodecahedron gold nano-crystal side-looking sem photograph that Fig. 2 provides for the embodiment of the invention;
Fig. 3 faces sem photograph for the extruding dodecahedron gold nano-crystal that the embodiment of the invention provides;
Fig. 4 is the sem photograph of the gold nano-crystal of embodiment 1 preparation;
Fig. 5 is parallel to the transmission electron microscope picture of substrate copper mesh for the gold nano-crystal lozenge of embodiment 1 preparation;
Fig. 6 is the high-resolution electron microscopy figure of lozenge among Fig. 5;
Fig. 7 does the electron diffraction pattern that fourier transformation obtains for Fig. 6;
Fig. 8 for the gold nano-crystal of embodiment 1 preparation with lie low transmission electron microscope picture on the substrate copper mesh of its trapezoidal faces;
Fig. 9 is the high-resolution-ration transmission electric-lens figure in the twin zone of institute's mark among Fig. 8;
Figure 10 does fourier transformation for twin zone among Fig. 9 and obtains two groups of symmetric diffraction patterns;
Figure 11 is the fourier transformation diffraction pattern of twining plane top crystal region among Fig. 9;
Figure 12 is the fourier transformation diffraction pattern of twining plane below crystal region among Fig. 9;
Figure 13 is the sem photograph of the gold nano-crystal of embodiment 2 preparations;
Figure 14 is the sem photograph of the gold nano-crystal of embodiment 3 preparations;
Figure 15 is the sem photograph of the gold nano-crystal of comparative example 1 preparation;
Figure 16 is the sem photograph of the gold nano-crystal of comparative example 2 preparations;
Figure 17 is the sem photograph of the gold nano-crystal of comparative example 2 preparations.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, but should be appreciated that these describe just to further specifying the features and advantages of the present invention, rather than to the restriction of claim of the present invention.
The embodiment of the invention discloses a kind of extruding dodecahedron gold nano-crystal, the extruding dodecahedron is a kind of dodecahedron that Polish mathematician Steinhaus proposes in his works " Mathematical Snapshots ", English quashed dodecahedron by name, it be by 6 trapezoidal faces and 6 lozenges totally 12 faces constitute, referring to Fig. 1 to 3 for the extruding dodecahedron gold nano-crystal that the embodiment of the invention respectively provides is overlooked, side-looking and face sem photograph.
The embodiment of the invention also provides a kind of preparation method of above-mentioned extruding dodecahedron gold nano-crystal, comprising:
With N, be heated to 100 ℃～155 ℃ in the dinethylformamide adding reaction vessel and carry out the backflow first time;
With the N of hydrochloro-auric acid, dinethylformamide solution splashes among the DMF (N, dinethylformamide) after the backflow, reacts and carries out the second time at 100 ℃～150 ℃ and reflux;
Solution becomes stopped reaction behind the glassy yellow in the reaction vessel, collects the gold nano-crystal precipitation.
According to the present invention, preferably purity is not less than 99.5% DMF and puts into round-bottomed flask, round-bottomed flask is put into oil bath pan to be warming up to 100 ℃～155 ℃ and to carry out refluxing the first time 8 minutes～12 minutes, in order to DMF solution is preheated to temperature of reaction, and prevent that DMF from volatilizing, can be method well known to those skilled in the art for the method that refluxes, there is no particular restriction to this in the present invention.According to the present invention, preferably in round-bottomed flask, set up agitator, reflux while stirring, DMF is heated evenly.Moisture water can promote oxygen dissolution, oxygen combines with the part chlorion and can carry out etching to the crystal seed that initial reaction stage forms, and then influences the crystal shape that finally makes, and is abundant in order to make moisture removal, preferably before DMF is put into round-bottomed flask, round-bottomed flask and stirrer are carried out drying.
According to the present invention preferably be with concentration 17.76 mmoles/liter～the DMF solution of 17.82 mmoles/rise hydrochloro-auric acid splashes among the DMF after the backflow, reacts and carry out the second time at 100 ℃～155 ℃ and reflux.The purpose that refluxes is to prevent DMF volatilization in the reaction process for the second time.DMF in reaction be solvent be again reductive agent, and also have to promote generate the effect of (110) crystal face.Because the reducing power of DMF is relevant with temperature, temperature is high more, the reducing power of DMF is strong more, too high or too low for temperaturely all can the gold nano-crystal pattern of final system be impacted, preferably the DMF solution of hydrochloro-auric acid is splashed among the DMF after the backflow according to the present invention, and react and carry out the second time at 120 ℃～150 ℃ and reflux.
Have precipitation to generate in the reaction process gradually, stopped reaction after the solution in the reaction vessel becomes glassy yellow is collected the gold nano-crystal precipitation.According to the present invention, the precipitation washing after drying that preferably will collect for washing and exsiccant method, all can be method well known to those skilled in the art, and there is no particular restriction to this in the present invention.
In order further to understand the present invention, extruding dodecahedron gold nanocrystals preparation provided by the invention is described below in conjunction with embodiment.
Embodiment 1
1, round-bottomed flask and stirrer are carried out drying.
2, adding 10 milliliters of purity in round-bottomed flask is 99.7% DMF, round-bottomed flask is put into 140 ℃ oil bath pan stirring and refluxing 10 minutes.
3, the DMF after refluxing drips 140 microlitres, 17.81 mmoles/rise the DMF solution of hydrochloro-auric acid, be reflected at 140 ℃ next time stream carry out.
4, the solution in the round-bottomed flask stops heating after becoming glassy yellow, and solution in the round-bottomed flask and precipitation are transferred in the centrifuge tube, centrifuge tube is put into the whizzer centrifugation obtain gold nano-crystal.
5, drying is carried out at 120 ℃ in the gold nano-crystal washing back that step 4 is obtained, referring to the sem photograph of Fig. 4 for the gold nano-crystal of present embodiment preparation.
Be parallel to the transmission electron microscope picture of substrate copper mesh referring to Fig. 5 for the gold nano-crystal lozenge of present embodiment preparation, Fig. 6 be the high-resolution electron microscopy figure of lozenge among Fig. 5, and it is complete monocrystalline plane that dodecahedral lozenge is pushed in the lattice fringe explanation among Fig. 6.Fig. 7 is for to do the electron diffraction pattern that fourier transformation obtains to Fig. 6, and this diffraction pattern ownership is (011) zone axis of face-centered cubic crystal, therefore proves that this pushes dodecahedral lozenge is monocrystalline (110) face.
Referring to Fig. 8 for the gold nano-crystal of present embodiment preparation with lie low transmission electron microscope picture on the substrate copper mesh of its trapezoidal faces, shown in arrow among the figure, in the extruding dodecahedron, can see a twin boundary perpendicular to two parallel edges of trapezoidal faces.Referring to Fig. 9 is the high-resolution-ration transmission electric-lens figure in the twin zone of institute's mark among Fig. 8, can be clearly seen that the symmetric lattice fringe of two arrangement of mirrors faces along twining plane from figure.For being done fourier transformation, twin zone among Fig. 9 obtains two groups of symmetric diffraction patterns referring to Figure 10, Figure 11 is the fourier transformation diffraction pattern to twining plane top crystal region among Fig. 9, Figure 12 is the fourier transformation diffraction pattern to twining plane below crystal region among Fig. 9, two groups of symmetric diffraction patterns are consistent with the fourier transformation diffraction pattern of the crystal region of twining plane above and below respectively among Figure 10, and can belong to (011) zone axis, therefore prove that the nanocrystalline trapezoidal faces of this extruding dodecahedron is substance twin (a 110) face for face-centered cubic crystal.
Embodiment 2
1,9.5 milliliters of purity that add in round-bottomed flask are 99.6% DMF, and the oil bath pan of round-bottomed flask being put into 105 ℃ refluxed 10 minutes.
2, the DMF after refluxing drips 103 microlitres, 17.80 mmoles/rise the DMF solution of hydrochloro-auric acid, be reflected at 105 ℃ next time stream carry out.
3, the solution in the round-bottomed flask stops heating after becoming glassy yellow, solution in the round-bottomed flask and precipitation are transferred in the centrifuge tube, centrifuge tube is put into the whizzer centrifugation obtain gold nano-crystal, referring to the sem photograph of Figure 13 for the gold nano-crystal of present embodiment preparation.
Embodiment 3
1, round-bottomed flask and stirrer are carried out drying.
2, adding 11 milliliters of purity in round-bottomed flask is 99.8% DMF, round-bottomed flask is put into 150 ℃ oil bath pan stirring and refluxing 9 minutes.
3, the DMF after refluxing drips 198 microlitres, 17.79 mmoles/rise the DMF solution of hydrochloro-auric acid, be reflected at 150 ℃ next time stream carry out.
4, the solution in the round-bottomed flask stops heating after becoming glassy yellow, and solution in the round-bottomed flask and precipitation are transferred in the centrifuge tube, centrifuge tube is put into the whizzer centrifugation obtain gold nano-crystal.
5, drying is carried out at 120 ℃ in the gold nano-crystal washing back that step 4 is obtained, referring to the sem photograph of Figure 14 for the gold nano-crystal of present embodiment preparation.
Comparative example 1
1, round-bottomed flask and stirrer are carried out drying.
2, adding 10 milliliters of purity in round-bottomed flask is 99.7% DMF, round-bottomed flask is put into 140 ℃ oil bath pan stirring and refluxing 10 minutes.
3, the DMF after refluxing drips 140 microlitres, 17.81 mmoles/rise the aqueous solution of hydrochloro-auric acid, be reflected at 140 ℃ next time stream carry out.
4, the solution in the round-bottomed flask stops heating after becoming glassy yellow, and solution in the round-bottomed flask and precipitation are transferred in the centrifuge tube, centrifuge tube is put into the whizzer centrifugation obtain gold nano-crystal.
5, drying is carried out at 120 ℃ in the gold nano-crystal washing back that step 4 is obtained, and referring to the sem photograph of Figure 15 for the gold nano-crystal of this comparative example preparation, extruding dodecahedron crystalline yields poorly in the gold nano-crystal that makes.
Comparative example 2
1, round-bottomed flask and stirrer are carried out drying.
2, adding 10 milliliters of purity in round-bottomed flask is 99.7% DMF, round-bottomed flask is put into 110 ℃ oil bath pan stirring and refluxing 10 minutes.
3, the DMF after refluxing drips 150 microlitres, 17.81 mmoles/rise the DMF solution of hydrochloro-auric acid, be reflected at 90 ℃ next time stream carry out.
4, the solution in the round-bottomed flask stops heating after becoming glassy yellow, and solution in the round-bottomed flask and precipitation are transferred in the centrifuge tube, centrifuge tube is put into the whizzer centrifugation obtain gold nano-crystal.
5, drying is carried out at 110 ℃ in the gold nano-crystal washing back that step 4 is obtained, and referring to the sem photograph of Figure 16 for the gold nano-crystal of this comparative example preparation, extruding dodecahedron crystalline yields poorly in the gold nano-crystal that makes.
Comparative example 3
1, round-bottomed flask and stirrer are carried out drying.
2, adding 10 milliliters of purity in round-bottomed flask is 99.7% DMF, round-bottomed flask is put into 140 ℃ oil bath pan stirring and refluxing 10 minutes.
3, the DMF after refluxing drips 140 microlitres, 17.81 mmoles/rise the DMF solution of hydrochloro-auric acid, be reflected at 160 ℃ next time stream carry out.
4, the solution in the round-bottomed flask stops heating after becoming glassy yellow, and solution in the round-bottomed flask and precipitation are transferred in the centrifuge tube, centrifuge tube is put into the whizzer centrifugation obtain gold nano-crystal.
5, drying is carried out at 110 ℃ in the gold nano-crystal washing back that step 4 is obtained, and referring to the sem photograph of Figure 17 for the gold nano-crystal of this comparative example preparation, extruding dodecahedron crystalline output is extremely low in the gold nano-crystal that makes.
By The above results as can be known, six lozenges of extruding dodecahedron gold nano-crystal provided by the invention are monocrystalline (110) face, and six trapezoidal faces are substance twin (110) face, and plane of crystal can be higher.Because the lattice tension force that the twin defective causes can influence the valence energy level of gold nano-crystal, and then further improves its catalytic performance.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. an extruding dodecahedron gold nano-crystal is characterized in that described extruding dodecahedron is made of 6 trapezoidal faces and 6 lozenges, and described lozenge is monocrystalline (110) face, and described trapezoidal faces is substance twin (110) face.
2. preparation method who pushes the dodecahedron gold nano-crystal comprises:
A), with N, dinethylformamide adds and to be heated to 100 ℃～155 ℃ in the reaction vessel and to carry out backflow first time;
B), with the N of hydrochloro-auric acid, dinethylformamide solution splashes into the N after the backflow, in the dinethylformamide, reacts and carries out the second time at 100 ℃～150 ℃ and reflux;
C), solution becomes stopped reaction behind the glassy yellow in the reaction vessel, collects the gold nano-crystal precipitation.
3. preparation method according to claim 2 is characterized in that step a) is carried out in oil bath.
4. want 2 described preparation methods according to right, it is characterized in that, the N that uses in the step a), the purity of dinethylformamide is not less than 99.5%.
5. preparation method according to claim 2 is characterized in that, the N of hydrochloro-auric acid in the step b), the concentration of dinethylformamide solution be 17.76 mmoles/liter～17.82 mmoles/liter.
6. preparation method according to claim 2 is characterized in that, reacting and carry out the temperature that refluxes the second time in the step b) is 120 ℃～150 ℃.
7. preparation method according to claim 2 is characterized in that step b) is carried out in oil bath.
8. preparation method according to claim 2 is characterized in that, is provided with agitator in the described reaction vessel.
9. preparation method according to claim 8 is characterized in that, with N, dinethylformamide also comprises before adding reaction vessel: described reaction vessel and agitator are carried out drying described in the step a).
10. according to any described preparation method of claim 2 to 9, it is characterized in that, also comprise: gold nano-crystal precipitation washing after drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101079084A CN101775647B (en) | 2010-02-10 | 2010-02-10 | Gold nano-crystal and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101079084A CN101775647B (en) | 2010-02-10 | 2010-02-10 | Gold nano-crystal and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101775647A true CN101775647A (en) | 2010-07-14 |
| CN101775647B CN101775647B (en) | 2012-06-20 |
Family
ID=42512229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101079084A Active CN101775647B (en) | 2010-02-10 | 2010-02-10 | Gold nano-crystal and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101775647B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554250A (en) * | 2010-12-07 | 2012-07-11 | 国家纳米科学中心 | Rhombic dodecahedron gold particle as well as preparation method and application thereof |
| CN103170649A (en) * | 2013-04-15 | 2013-06-26 | 南京理工大学 | Preparation method of magnetic nickel nano material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62178236A (en) * | 1986-01-31 | 1987-08-05 | Konishiroku Photo Ind Co Ltd | Silver halide photographic sensitive material |
| CN1356543A (en) * | 2001-12-10 | 2002-07-03 | 中国科学院长春应用化学研究所 | Process for preparing film electrode of gold-monocrystal nano island array |
| CN1513631A (en) * | 2003-07-15 | 2004-07-21 | 武汉大学 | Preparation method of nano-gold particle |
| CN1772612A (en) * | 2004-11-12 | 2006-05-17 | 中国科学院兰州化学物理研究所 | Synthesis process of nanometer mesoporous gold complex |
| CN101538736A (en) * | 2008-03-17 | 2009-09-23 | 国家纳米科学中心 | Dendritic golden nanophase material and preparation method thereof |
-
2010
- 2010-02-10 CN CN2010101079084A patent/CN101775647B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62178236A (en) * | 1986-01-31 | 1987-08-05 | Konishiroku Photo Ind Co Ltd | Silver halide photographic sensitive material |
| CN1356543A (en) * | 2001-12-10 | 2002-07-03 | 中国科学院长春应用化学研究所 | Process for preparing film electrode of gold-monocrystal nano island array |
| CN1513631A (en) * | 2003-07-15 | 2004-07-21 | 武汉大学 | Preparation method of nano-gold particle |
| CN1772612A (en) * | 2004-11-12 | 2006-05-17 | 中国科学院兰州化学物理研究所 | Synthesis process of nanometer mesoporous gold complex |
| CN101538736A (en) * | 2008-03-17 | 2009-09-23 | 国家纳米科学中心 | Dendritic golden nanophase material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《JOURNAL OF THE AMERICAN CHEMICAL SOCIETY》 20090114 Gyoung Hwa Jeong,et al "Polyhedral Au Nanocrystals Exclusively Bound by {110} Facets: The Rhombic Dodecahedron" p1672-1673 1-10 第131卷, 第5期 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554250A (en) * | 2010-12-07 | 2012-07-11 | 国家纳米科学中心 | Rhombic dodecahedron gold particle as well as preparation method and application thereof |
| CN103170649A (en) * | 2013-04-15 | 2013-06-26 | 南京理工大学 | Preparation method of magnetic nickel nano material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101775647B (en) | 2012-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chang et al. | Manipulative synthesis of multipod frameworks for self-organization and self-amplification of Cu2O microcrystals | |
| Désert et al. | Synthesis and site-specific functionalization of tetravalent, hexavalent, and dodecavalent silica particles. | |
| US20200147591A1 (en) | Preparation method for hollow molybdate composite microspheres and their application | |
| CN101220506B (en) | Method for high concentration mass-synthesis of silver nano-wire | |
| CN104986742B (en) | One species bead chain shape graphitization azotized carbon nano material and preparation method thereof | |
| Li et al. | Polyhedral Cu2O crystal: Morphology evolution from meshed nanocube to solid and gas-sensing performance | |
| Heli et al. | Synthesis and applications of nanoflowers | |
| CN105692573A (en) | Preparation method of nano-structure carbon nitride | |
| CN102094246A (en) | Gold nucleus and silver shell double-metal nanocrystal and preparation method thereof | |
| CN103406546B (en) | The method of the flower-shaped golden nanometer particle of a kind of controlled synthesis | |
| CN1442260A (en) | Method for preparing metal nano powder | |
| Wang et al. | Shape-control and characterization of magnetite prepared via a one-step solvothermal route | |
| CN100463745C (en) | Method for preparing copper-base composite particles of internal carbon-inlaid nano pipe | |
| CN109332722B (en) | Method for synthesizing copper nanowire through micro-pipeline | |
| CN101775647B (en) | Gold nano-crystal and preparation method thereof | |
| CN111233048A (en) | Double-shell MnCo2O4Hollow nanosphere material and synthesis method thereof | |
| CN105478793A (en) | Silver nanowire and preparation method thereof | |
| CN102070178A (en) | Method for preparing yttrium oxide micro-nano-materials based on hydrothermal technology regulation and control | |
| CN101136278A (en) | Method for producing magnetic fluid | |
| Lan et al. | Large-scale growth of a novel hierarchical ZnO three-dimensional nanostructure with preformed patterned substrate | |
| Xue et al. | 3D hierarchical architectures of Sr2Sb2O7: hydrothermal syntheses, formation mechanisms, and application in aqueous-phase photocatalysis | |
| CN101817557A (en) | Method for preparing antimony oxide or antimony oxychloride micro-nanometer particles | |
| CN108637269B (en) | Gold nano double pyramid with quintuple twin crystal structure and preparation method thereof | |
| CN103214026B (en) | Preparation method of CaO/ZnO core-shell structure nanometer material | |
| Liu et al. | Novel anatase TiO2 boxes and tree-like structures assembled by hollow tubes: D, L-malic acid-assisted hydrothermal synthesis, growth mechanism, and photocatalytic properties |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU INSTITUTE OF ENERGY STORAGE MATERIALS + Free format text: FORMER OWNER: CHANGCHUN INST. OF APPLIED CHEMISTRY, CHINESE ACADEMY OF SCIENCES Effective date: 20140103 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 130000 CHANGCHUN, JILIN PROVINCE TO: 213017 CHANGZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140103 Address after: Changzhou City, Jiangsu province Hehai road 213017 No. 9 Patentee after: Changzhou Institute of Energy Storage Materials & Devices Address before: 130000 Jilin City, Changchun province people's street, No. 5625 Patentee before: Changchun Institue of Applied Chemistry, Chinese Academy of Sciences |