Low-dimension method for nano-wires

A technology of nanowires and metal nanowires, which is applied in the preparation of inorganic/organic nanomaterials and the field of low-dimensional nanowires. It can solve the problems of complex process, high cost, and difficulty in large-scale production, and achieve simple preparation process and extremely high purity. High, fully converting results

Active Publication Date: 2017-05-31
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a low-dimensional nanowire method, which can completely transform the nanowires and significantly increase the number of obtained nanoparticles, and the prepared nanoparticles have extremely high purity and particle size The diameter is uniform, and at the same time overcome the problems of high cost, complicated process and difficulty in large-scale production of the existing technology, and have a good application prospect

Method used

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Examples

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Effect test

Embodiment 1

[0052] Disperse silver nanowires with a diameter of 200 nanometers and a length of 30 micrometers in the solvent N-methylpyrrolidone, set a temperature of 100°C and stir for 1 hour, and subject the resulting sample to ultrasonic treatment with 300W ultrasonic power for 2 hours to obtain silver nanowires. particle.

[0053] figure 1 It is a scanning electron micrograph of the silver nanowires in Example 1, from figure 1 It can be seen that the length of the silver nanowire is 30 microns. figure 2 This is a scanning electron micrograph of the silver nanoparticles obtained in Example 1. figure 2 It can be seen that the silver nanowires have been completely converted into silver nanoparticles, and the size of the converted silver nanoparticles is about 30 nanometers, and the particle size is uniform.

Embodiment 2

[0055] Disperse ferroplatin nanowires with a diameter of 1000 nanometers and a length of 100 micrometers in a solvent formamide, set the temperature to 200 ℃ and stir for 12 hours, and subject the resulting sample to ultrasonic power of 500W for 0.5h to obtain ferroplatin nanowires. particle.

Embodiment 3

[0057] Disperse silicon nanowires with a diameter of 10 nanometers and a length of 1 micron in the solvent N,N-dimethylacetamide, set the temperature at 20℃ and stir for 48 hours. The resulting sample is ultrasonicated with a 100W ultrasonic power ultrasonic probe for 10 hours. , That is, silicon nanoparticles are obtained.

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Abstract

The invention provides a low-dimension method for nano-wires. The low-dimension method comprises the following steps: dispersing the nano-wires in a solvent, setting the temperature and stirring; and carrying out ultrasonic treatment to realize low dimension of the nano wires so as to obtain nano-particles. Compared with an existing method, the method has the advantages of extensive sources, simplicity and convenience in operation and the like. By the method, the nano-wires are converted completely, the number of the obtained nano-particles can be increased remarkably, and the prepared nano-particles are quite high in purity and uniform in grain size. Meanwhile, the problems that the cost is high, the process is complicated and products are difficult to produce on a large scale in the prior art are solved. The application prospect is good.

Description

Technical field [0001] The invention belongs to the field of nano-material preparation, and specifically relates to inorganic / organic nano-material preparation technology, in particular to a low-dimensional nanowire method. Background technique [0002] Nanowires usually have unique thermal, optical, electrical and magnetic properties, so they have a wide range of applications in the fields of microprocessors, micro sensors, new optoelectronic devices, and information storage. The low-dimensionality of nanowires can directly lead to the generation of nanoparticles, significantly increasing the number of nanoparticles obtained, thereby greatly enriching the integrated nanoparticle system constructed in reverse. With the continuous development of experimental methods, the low-dimensionality of nanomaterials has attracted more and more attention. [0003] The preparation of nanoparticles can be divided into two methods: "top-down" and "bottom-up". The "top-down" method mainly refers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00C08J3/28B82Y40/00
CPCB82Y40/00C08J3/28C08J2379/04C08J2379/02C08J2365/00B22F1/0545
Inventor 张勇王朝阳韩春春
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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