Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sub-2nm ruthenium (Ru) nanowire network and preparation method thereof

A nanowire and network technology, applied in the field of ruthenium nanowire network and its synthesis, can solve the problems such as the immature control technology of Ru nanocrystal morphology, and achieve the effects of novel structure, uniform morphology and high yield

Inactive Publication Date: 2016-07-27
GUIZHOU UNIV
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with other Pt group metals, such as Pd, Pt, Rh, etc., the shape control technology of Ru nanocrystals is not yet mature, and only the synthesis method of spherical Ru nanoparticles in organic media has been reported.

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
  • Sub-2nm ruthenium (Ru) nanowire network and preparation method thereof
  • Sub-2nm ruthenium (Ru) nanowire network and preparation method thereof
  • Sub-2nm ruthenium (Ru) nanowire network and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) The surfactant and the reducing agent are added into the aqueous solution at a mass ratio of 1:1, and stirred for 5 minutes;

[0021] (2) adding concentration to step (1) gained mixed solution (7ml) is the ruthenium trichloride solution of 0.1mol / L, stirs at room temperature 1 minute; The solution color after mixing is dark red;

[0022] (3) Transfer the mixed solution obtained in step (2) to an autoclave to react for 15 hours, and the temperature is controlled at 180° C.;

[0023] (4) The product obtained in step (3) is cooled, centrifuged, washed three times with deionized water, and then dispersed and stored in ethanol solution. The product was a mixture of worm-like nanowires and a few small particles, and the nanowires began to branch.

Embodiment 2

[0025] (1) Add the surfactant and the reducing agent into the aqueous solution at a mass ratio of 1:2, and stir for 3 minutes;

[0026] (2) adding concentration to step (1) gained mixed solution (7ml) is the ruthenium trichloride solution of 0.1mol / L, stirs at room temperature 2 minutes; The solution color after mixing is dark red;

[0027] (3) Transfer the mixed solution obtained in step (2) to an autoclave to react for 18 hours, and the temperature is controlled at 180° C.;

[0028] (4) The product obtained in step (3) is cooled, centrifuged, washed three times with deionized water, and then dispersed and stored in ethanol solution. The products are longer and more branched nanowires and partial nanowire networks.

Embodiment 3

[0030] (1) The surfactant and the reducing agent are added into the aqueous solution at a mass ratio of 2:1, and stirred for 4 minutes;

[0031] (2) adding concentration to step (1) gained mixed solution (7ml) is the ruthenium trichloride solution of 0.1mol / L, stirs at room temperature 3 minutes; The solution color after mixing is dark red;

[0032] (3) Transfer the mixed solution obtained in step (2) to an autoclave to react for 24 hours, and the temperature is controlled at 180°C;

[0033] (4) The product obtained in step (3) is cooled, centrifuged, washed three times with deionized water, and then dispersed and stored in ethanol solution. The result is a nanowire network of longer and more branched nanowires.

[0034] figure 1 .It is the observation result figure of sub-2nm ruthenium (Ru) nanowires with a transmission electron microscope. It can be seen that the product is a network of interconnected ultra-fine nanowires.

[0035] figure 2 .It is the observation resul...

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a sub-2nm ruthenium (Ru) nanowire network and a synthesis method thereof. The method is characterized by comprising the following steps: (1) a surface active agent and a reducing agent are added in water for stirring for 3-5 minutes at room temperature; the mass ratio of the surface active agent to the reducing agent is 1: 2-2: 1; and the quantity of the added water needs to meet the condition that the added water can totally dissolve the surface active agent and the reducing agent; (2) metal ruthenium salt precursor solution is added in the obtained mixed solution in the step (1) for stirring for 1-3 minutes at room temperature; the ratio of the added water to the ruthenium precursor solution is 5: 1-10: 1; and the concentration of the ruthenium metal precursor is 0.05-0.5 mol / L; (3) the mixed solution obtained in the step (2) is transferred into a high-pressure reaction kettle for reacting for 12-30 hours; and the temperature is controlled within 150-200 DEG C; and (4) the product obtained in the step (3) is cooled for washing, and is centrifugally separated to obtain the sub-2nm Ru nanowire network.

Description

[0001] The invention relates to a ruthenium (Ru) nanowire network with a diameter less than 2nm and a synthesis method thereof. Background technique [0002] As an important element in Pt group metals, Ru plays an irreplaceable role in the oxidation of alcohols, nitrogen fixation, biomass fuels and liquid fuel cells. The intrinsic link between structure and performance determines the importance of controlling the size and shape of metal nanocrystals. Compared with other Pt group metals, such as Pd, Pt, Rh, etc., the shape control technology of Ru nanocrystals is not yet mature, and the only reported method is to synthesize spherical Ru nanoparticles in organic media. [0003] In recent years, one-dimensional nanowires have attracted widespread attention from the scientific community due to their unique structures and properties. However, the nanowires synthesized in the solution system are often relatively large in diameter (> 5nm), and the sub-2nm nanowires were not synth...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B22F1/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00B22F9/24B22F1/0553B22F1/054
Inventor 袁强赵伟悦
Owner GUIZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com