CN104874787A - Method for selectively extracting single-diameter nanometer silver wires - Google Patents
Method for selectively extracting single-diameter nanometer silver wires Download PDFInfo
- Publication number
- CN104874787A CN104874787A CN201510210272.9A CN201510210272A CN104874787A CN 104874787 A CN104874787 A CN 104874787A CN 201510210272 A CN201510210272 A CN 201510210272A CN 104874787 A CN104874787 A CN 104874787A
- Authority
- CN
- China
- Prior art keywords
- nano
- silver thread
- wire diameter
- single wire
- high molecular
- 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
Abstract
The invention discloses a method for selectively extracting single-diameter nanometer silver wires. The method includes steps of a, adding nanometer silver wires and macromolecule polymer into reaction solvent; b, bath-sonicating the mixture of the step a for 30 to 60 minutes at 0 to 10 degrees Centigrade, and then tip-sonicating for 5 to 15 minutes; c, centrifuging solution obtained in the step b for 10 to 30 minutes under 2000 rmp to obtain upper solution; d, acquiring the single-diameter nanometer silver wires.
Description
Technical field
The present invention relates to chemical field, especially relate to the method for the single wire diameter nano-silver thread of a kind of selective extraction.
Background technology
Nano-silver thread is at photoelectricity, and photovoltaic and sensory field have good application prospect.These application usually need the nano-silver thread of single wire diameter, such as the male subject study of summer children has been combined into a kind of nano silver wire, have studied resistivity and the current carrying capacities of the wire diameter of nano silver wire, result shows: diameter is that the resistivity of 20nm nano silver wire is only 1/2nd of block silver, and along with the increase of diameter, resistivity can decline further.Although its size is less, but possesses the high conductivity that block silver is incomparable.And the maximum current of nano silver wire can increase along with the increase of its cross section, maximum current density can compare favourably with the maximum current density of the multi-walled carbon nano-tubes reported.In addition, the conducting resinl containing nano-silver thread has minimum bulk resistor and maximum shear strength, and this key factor defines conductive network in nano-silver thread in conducting resinl inside.At present, the synthetic method about Nano Silver is a lot, and adopt physical method can obtain pure Nano Silver, and principle is simple, but shortcoming is instrument and equipment requirement higher, producing cost is expensive, is unfavorable for expanding production.Chemical method can controlled synthesis nano silver material be widely used with it, is conducive to the range of application expanding nano-silver thread, but also there is size (wire diameter, length etc.) and not easily control, and easily the problems such as reunion occurs.In order to improve the wire diameter purity of nano-silver thread further, people attempt adopting separation method to obtain the nano-silver thread of required wire diameter, comprise density gradient centrifugation, based on the electrophoresis of gel, and the methods such as polymer wrapped.Often kind of method is in the purity of nano-silver thread, and chiral selectivity, productive rate, there is its limitation more or less in the field such as mass production and cost.In these methods, polymer wrapped method, due to its possibility unlimited in polymer design and can mass production, has huge development space in the nano-silver thread of the single wire diameter of selective extraction.Make to obtain the highly purified nano-silver thread with single wire diameter in this way to need to select suitable polymer and reaction condition.Polymer wrapped method is often applied to field of carbon nanotubes.Correlative study also show the structure that the CNT of high molecular polymer to particular chiral depends on high molecular polymer, the solvent of employing and experiment condition etc.
Summary of the invention
In order to overcome above-mentioned technical problem, the invention provides the method for the single wire diameter nano-silver thread of a kind of selective extraction, high molecular polymer is applied to nano-silver thread field by the present invention, by screening suitable high molecular polymer structure, successfully select a family macromolecule polymer, and Optimal Experimental condition, obtain the highly purified nano-silver thread with specific wire diameter (d=35nm), the technical scheme of employing is as follows:
The method of the single wire diameter nano-silver thread of selective extraction, the method is carried out as follows:
A, nano-silver thread and high molecular polymer are joined in reaction dissolvent;
B, by the bath-sonicate 30 ~ 60 minutes under the condition of 0 ~ 10 degree of the mixture in step a, tip-sonicate 5 ~ 15 minutes thereupon;
C, by the centrifugal 10 ~ 30min under the condition of 2000rmp of the solution in step b, get upper solution;
D, obtain single wire diameter nano-silver thread.
Further, described high molecular polymer is the polymer containing dihexyl fluorenes and pyridine groups.
Further, described high molecular polymer is poly-(9,9-dihexyl fluorenes-co-(2,6-pyridine)), poly-(9,9-dihexyl fluorenes-co-6,6 '-{ 2,2 '-two pyridine }) or poly-(9,9-dihexyl fluorenes-co-(6,6 '-{ 2,2 ': 6 ', 2 "-terpyridyl })).
Further, described nano-silver thread is prepared by polyol process, and the first content that makes of nano-silver thread is 5 ~ 10mg/ml.
Further, described reaction dissolvent is toluene or oxolane.
Further, in step a, described nano-silver thread is 2 ~ 8ml, and high molecular polymer is 15 ~ 20mg, and tetrahydrofuran solution is 20ml.
High molecular polymer is applied to nano-silver thread field by the present invention, by screening suitable high molecular polymer structure, successfully select a family macromolecule polymer, and Optimal Experimental condition, obtain the highly purified nano-silver thread with specific wire diameter (d=35nm).
Accompanying drawing explanation
Fig. 1 is the chemical structural formula of poly-(9,9-dihexyl fluorenes-co-6,6 '-{ 2,2 '-two pyridine }).
Detailed description of the invention
Composition graphs 1 specific embodiment is:
Adopt poly-(9,9-dihexyl fluorenes-co-6,6 '-{ 2,2 '-two pyridine }) as high molecular polymer, molecular weight is 50000, concrete step is: join in the tetrahydrofuran solution of 20ml by the nano-silver thread (nano-silver thread content is 5mg/ml) of 5ml and the high molecular polymer of 20mg, mixture is ultrasonic 30min under the condition of 0 degree, tip-sonicate 10 minutes thereupon, then by solution centrifugal 20min under the condition of 2000rmp, get upper solution, namely obtain the nano-silver thread of 35nm wire diameter, the visible table 1 of result.
| Wire range (nm) | Content |
| 20±5 | 0.5％ |
| 35±2 | 98.7％ |
| ＞40 | 0.8％ |
Show the selective of 1:35nm wire diameter nano-silver thread
The above, be only the specific embodiment of the present invention, and those of ordinary skill in the art are in the scope that the present invention discloses, and the change that can expect easily, all should be encompassed within protection scope of the present invention.
Claims (6)
1. the method for the single wire diameter nano-silver thread of selective extraction, the method is carried out as follows:
A, nano-silver thread and high molecular polymer are joined in reaction dissolvent;
B, by the bath-sonicate 30 ~ 60 minutes under the condition of 0 ~ 10 degree of the mixture in step a, tip-sonicate 5 ~ 15 minutes thereupon;
C, by the centrifugal 10 ~ 30min under the condition of 2000rmp of the solution in step b, get upper solution;
D, obtain single wire diameter nano-silver thread.
2. the method for the single wire diameter nano-silver thread of selective extraction as claimed in claim 1, is characterized in that described high molecular polymer is the polymer containing dihexyl fluorenes and pyridine groups.
3. the method for the single wire diameter nano-silver thread of selective extraction as claimed in claim 1, it is characterized in that described high molecular polymer is for poly-(9,9-dihexyl fluorenes-co-(2,6-pyridine)), poly-(9,9-dihexyl fluorenes-co-6,6 '-{ 2,2 '-two pyridine }) or poly-(9,9-dihexyl fluorenes-co-(6,6 '-{ 2,2 ': 6 ', 2 "-terpyridyl })).
4. the method for the single wire diameter nano-silver thread of the selective extraction as described in claim as arbitrary in claim 1-3, is characterized in that described nano-silver thread is prepared by polyol process, and the first content that makes of nano-silver thread is 5 ~ 10mg/ml.
5. the method for the single wire diameter nano-silver thread of the selective extraction as described in claim as arbitrary in claim 1-3, is characterized in that described reaction dissolvent is toluene or oxolane.
6. the method for the single wire diameter nano-silver thread of the selective extraction as described in claim as arbitrary in claim 1-3, is characterized in that in step a, and described nano-silver thread is 2 ~ 8ml, and high molecular polymer is 15 ~ 20mg, and tetrahydrofuran solution is 20ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210272.9A CN104874787A (en) | 2015-04-24 | 2015-04-24 | Method for selectively extracting single-diameter nanometer silver wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210272.9A CN104874787A (en) | 2015-04-24 | 2015-04-24 | Method for selectively extracting single-diameter nanometer silver wires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104874787A true CN104874787A (en) | 2015-09-02 |
Family
ID=53942608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510210272.9A Pending CN104874787A (en) | 2015-04-24 | 2015-04-24 | Method for selectively extracting single-diameter nanometer silver wires |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104874787A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934377A (en) * | 2010-09-14 | 2011-01-05 | 浙江大学 | Quick and efficient synthesis method for silver nanowires |
| CN102575117A (en) * | 2009-08-24 | 2012-07-11 | 凯博瑞奥斯技术公司 | Purification of metal nanostructures for improved haze in transparent conductors made from the same |
| CN103586456A (en) * | 2013-11-07 | 2014-02-19 | 中科院广州化学有限公司 | High-dispersity silver powder and preparation method and application thereof |
| CN103785842A (en) * | 2014-01-16 | 2014-05-14 | 复旦大学 | Nanocrystalline metal elementary substance separation method |
| CN104174869A (en) * | 2014-08-25 | 2014-12-03 | 常州大学 | Method for manufacturing super-long silver nanowires |
-
2015
- 2015-04-24 CN CN201510210272.9A patent/CN104874787A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575117A (en) * | 2009-08-24 | 2012-07-11 | 凯博瑞奥斯技术公司 | Purification of metal nanostructures for improved haze in transparent conductors made from the same |
| CN101934377A (en) * | 2010-09-14 | 2011-01-05 | 浙江大学 | Quick and efficient synthesis method for silver nanowires |
| CN103586456A (en) * | 2013-11-07 | 2014-02-19 | 中科院广州化学有限公司 | High-dispersity silver powder and preparation method and application thereof |
| CN103785842A (en) * | 2014-01-16 | 2014-05-14 | 复旦大学 | Nanocrystalline metal elementary substance separation method |
| CN104174869A (en) * | 2014-08-25 | 2014-12-03 | 常州大学 | Method for manufacturing super-long silver nanowires |
Non-Patent Citations (1)
| Title |
|---|
| FUMING CHEN等: "Toward the Extraction of Single Species of Single-Walled Carbon Nanotubes Using Fluorene-Based Polymers", 《NANO LETTERS》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103068729B (en) | Low-cost method for separating carbon nanotubes, separation material, and separation vessel | |
| CN105271217B (en) | A kind of preparation method of the three-dimensional grapheme of N doping | |
| CN103407997B (en) | A kind of preparation in macroscopic quantity method that can be used for the macroscopic three dimensional graphene aerogel sorbing material of indoor air purification | |
| Xie et al. | Porous chiral metal-organic framework InH (D-C10H14O4) 2 with anionic-type diamond network for high-resolution gas chromatographic enantioseparations | |
| Schulz et al. | Shear influenced network dynamics and electrical conductivity recovery in carbon nanotube/epoxy suspensions | |
| Luo et al. | Multi-stimuli responsive carbon nanotube–shape memory polymeric composites | |
| CN104710709A (en) | Polyvinyl chloride/graphene nanocomposite and preparation method thereof | |
| Cui et al. | Geometric structure and SOF2 adsorption behavior of Ptn (n= 1-4) clustered (8, 0) single-walled CNT using density functional theory | |
| JP6716725B2 (en) | Method and reagent for selectively dispersing semiconducting carbon nanotubes to improve production rate | |
| Foo et al. | Hydrostatic bath synthesis of conductive polypyrrole/reduced graphene oxide aerogel as compression sensor | |
| Meng et al. | Electronic-level deciphering of the desalination mechanism of high-performance graphenylene membranes | |
| CN104874787A (en) | Method for selectively extracting single-diameter nanometer silver wires | |
| Mirmotahari et al. | Calcium-doped single-wall nanotubes (Ca/SWCNTs) as a superior carrier for atropine drug delivery: a quantum-chemical study in gas and solvent phases | |
| Sharma et al. | Effect of electric field variation in alignment of SWNT/PC nanocomposites | |
| Ferrighi et al. | Oxygen reactivity on pure and B-doped graphene over crystalline Cu (111). Effects of the dopant and of the metal support | |
| CN109809393B (en) | Purification method of semiconductor single-walled carbon nanotube | |
| Autreto et al. | Carbon nanotube with square cross-section: an ab initio investigation | |
| CN104843671A (en) | Method of selectively extracting high-purity (9, 8) chiral single-walled carbon nano-tube | |
| Jovanovic et al. | Isolation and characterization of the higher fullerenes from carbon soot | |
| Jovanovic et al. | Comparative spectroscopic characterization of the basic and the higher fullerenes | |
| Kausar | Ingenuities of graphyne and graphdiyne with polymers: design insights to high performance nanocomposite | |
| CN102557007B (en) | Method for separating carbon nanometer tubes by fractional extraction method | |
| Karimian et al. | Influence of single-wall carbon nanotubes and polypyrrole thin layer coating on the electrical conductivity of PolyHIPE foams | |
| CN106008753A (en) | Chirality magnetic separation nano material and preparing method and application thereof | |
| CN108212106A (en) | A kind of adsorbent of thiosemicarbazide modified corn shell and its preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150902 |