Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation of ruthenium nano-particle capable of stably dispersing in water

A nanoparticle, stable technology, applied in the field of ruthenium nanomaterials, can solve the problems of nanomaterial synthesis addition, overcomplexity, material waste, etc.

Inactive Publication Date: 2011-06-15
佛山中科华洋材料科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the nano-Pt particle size on the catalyst remains good, due to multi-step treatment procedures, changes in the external environment may have changed the structure and chemical composition of the nanoparticles, and the filtration and washing process will cause noble metal nanoparticles The loss of materials, resulting in waste of materials
The treatment process for the carrier is not only too complicated, but also produces a lot of pollutants
In addition, there are few pore materials with adjustable pore size that have been published and available at present. If mesoporous materials are used to adjust the size of nanoparticles, it is necessary to synthesize pore materials with adjustable pore size, which undoubtedly gives nanomaterials Synthesis Adds a Difficulty

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
  • Preparation of ruthenium nano-particle capable of stably dispersing in water
  • Preparation of ruthenium nano-particle capable of stably dispersing in water
  • Preparation of ruthenium nano-particle capable of stably dispersing in water

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0008] The preparation method of ruthenium nanoparticles comprises the following steps:

[0009] a. Electrolyte preparation

[0010] 1) anhydrous RuCl 3 Prepared to a concentration of 5 x 10 -3 mol L -1 The solution;

[0011] 2) Take 3.0ml of the above solution into ultrapure water to make 30.0ml of electrolyte;

[0012] 3) Take 0.30g KNO 3 Dissolved in the above solution, the pH of the solution was 2.86 at this time;

[0013] 4) The solution is passed through inert gas for 0.5h under the condition of stirring, the purpose is to drive away the dissolved air in the solution.

[0014] b. Control of the electrolysis process

[0015] 1) The electrolysis uses a two-electrode system: a rotating platinum electrode with a diameter of 3mm is used as the cathode, and a platinum wire with a length of 1cm and a diameter of 1mm is used as the anode, and the electrode speed is controlled within the range of 500-2000rpm;

[0016] 2) The electrolysis process is carried out in the cons...

Embodiment 1

[0021] 0.5mM RuCl in 30ml 3 solution, add 0.30g KNO 3 , the solution was passed an inert gas under stirring conditions. The rotating platinum plate electrode is used as the cathode, and the platinum wire is used as the anode. The electrode rotation speed is controlled at 500rmp, and the constant potential electrolysis is performed, and the pH value is controlled to be 3.26. Add 10ml of high-purity water to the solution obtained, and ultrasonically disperse the solution. The average particle diameter of the nucleus in the obtained particles is 2.0nm, see image 3 (a).

Embodiment 2

[0023] 0.5mM RuCl in 30ml 3 solution, add 0.30g KNO 3 , the solution was passed an inert gas under stirring conditions. The rotating platinum sheet electrode is used as the cathode, and the platinum wire is used as the anode. The electrode rotation speed is controlled at 1000rmp, and the constant potential electrolysis is performed, and the pH value is controlled to be 3.26. Add 10ml of high-purity water to the solution obtained, and ultrasonically disperse the solution. The average particle diameter of the nucleus in the particles obtained is 1.95nm, see Figure 4 .

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
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of ruthenium nano-particles which can stably disperse in water without any protective agents. The preparation method is characterized in that the method prepares ruthenium nano-particles with core-shell structure by controlling electrochemical deposition process, the core is metal ruthenium nanocrystalline, and the shell is hydrophilic ruthenium dioxide.

Description

technical field [0001] The invention relates to a ruthenium nanomaterial with a core-shell structure that can be stably dispersed in water without the presence of a protective agent, and belongs to the technical field of nanomaterials. Background technique [0002] Metal nanoparticles have special physical and chemical properties different from metal atoms and bulk metals, so they are widely used in the fields of catalysis, microelectrode reaction and bioengineering. In recent years, using different methods to prepare metal colloids with high dispersion and narrow size distribution and make effective use of them has become the goal of many nanomaterial preparation workers. Usually, the preparation process of nanoparticles is to use various synthetic or natural surfactants as protective agents, and use reducing agents such as alcohol, citrate, and sodium borohydride to reduce noble metal ions to obtain nanocolloids. The purpose of adding the protective agent is to make the n...

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 Patents(China)
IPC IPC(8): C25C5/02
Inventor 贺泓张博王莲王少莘
Owner 佛山中科华洋材料科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com