Super-long silver nanowire and preparation method thereof

A silver nanowire, ultra-long technology, applied in the field of its preparation, ultra-long silver nanowire, can solve the problem of complex preparation methods of silver nanowire

Active Publication Date: 2015-05-13
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The present invention aims to overcome the defects of complex preparation methods of existing s...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Super-long silver nanowire and preparation method thereof
  • Super-long silver nanowire and preparation method thereof
  • Super-long silver nanowire and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] The invention relates to a silver nanowire and a preparation method thereof, in particular to an ultra-long silver nanowire and a preparation method thereof, as well as a conductive ink / ink, a transparent conductive film, a printed circuit and related electronic products prepared therefrom.

[0039] The invention provides a method for preparing ultra-long silver nanowires, the method comprising:

[0040] a) dissolving the cationic surfactant in the organic reducing agent to form an organic reducing system;

[0041] b) adding silver salt as a silver source to the organic reducing system obtained in step a), and reacting at a first specified temperature.

[0042] In the present invention, in the process of synthesizing ultra-long silver nanowires, a typical reaction system composed of an organic reducing agent and an organic surfactant is used. After the system is melted to form a transparent solution, an organic silver salt is added to the system as a silver source. . ...

Embodiment 1

[0082] 0.5 g of cetyltrimethylammonium bromide and 8.0 g of hexadecylamine were completely dissolved at 180° C., then 50 mg of silver acetylacetonate was added as a silver source, and reacted at 140° C. for 10 hours. The resulting sample was washed several times with toluene after cooling to room temperature. The obtained silver-white solid was vacuum-dried at 80°C for 2 hours;

[0083] figure 1 It can be seen that the diameter of the obtained silver nanowire is about 50-100 nanometers, and its length exceeds 70 microns on average;

[0084] figure 2 For the XRD spectrum of the sample prepared in this embodiment, it can be seen that the product is a pure silver nanowire;

[0085] Depend on image 3 It can be seen that the nanowires have good crystallinity and smooth surface.

Embodiment 2

[0087] 0.5 g of hexadecyltrimethylammonium bromide and 8.0 g of hexadecylamine were completely dissolved at 180° C., then 50 mg of silver acetylacetonate was added as a copper source, and reacted at 150° C. for 10 hours. The resulting sample was washed several times with toluene after cooling to room temperature. The obtained silver-white solid was vacuum-dried at 80° C. for 2 hours. The obtained silver nanowires have a diameter of about 50-100 nanometers and an average length of more than 70 micrometers.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Lengthaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a super-long silver nanowire and a preparation method thereof. The preparation method comprises the following steps: 1) dissolving a cationic surfactant in an organic reducing agent so as to form an organic reduction system, wherein the cationic surfactant and silver salt which can be dissolved in an organic reduction system perform complexation, and the organic reducing agent comprises long-chain alkylamine; 2) adding the silver salt which can be dissolved in the organic reduction system in the prepared organic reduction system, performing a reaction under 120-180 DEG C, filtering reacted substances, and washing the filtered substances.

Description

technical field [0001] The invention relates to a silver nanowire and a preparation method thereof, in particular to an ultra-long silver nanowire, a preparation method thereof and an application thereof. Background technique [0002] In recent years, one-dimensional materials have attracted extensive attention due to their unique optical, electrical, and magnetic properties, especially their great application prospects in the fields of transparent displays, photoelectric conversion, and sensors. Due to the poor flexibility and high cost of the ITO materials currently used in the field of transparent conduction, the metal nanomaterial transparent conduction film will become an important substitute material for ITO. Silver nanowires have excellent conductivity, and the conductivity of its transparent conductive film can be compared with the best performance of ITO. At the same time, silver nanowires also have unique mechanical and optical properties. Therefore, silver nanowi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B22F9/24
Inventor 王冉冉孙静王晓高濂王焱
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap