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

Synthetic method for flower type silver micron particles

一种微米颗粒、合成方法的技术，应用在银颗粒的形貌控制合成领域，能够解决操作繁琐、具有腐蚀性等问题，达到重复性好、操作简单、条件温和的效果

Active Publication Date: 2015-10-21
JIANGSU UNIV OF TECH
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This preparation method uses citric acid as a chelating agent, and adjusts the pH value with concentrated nitric acid. Only when the pH value of the solution is around 3.5 can silver micro-nano structures with good morphology be obtained, which is corrosive and cumbersome to operate.

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
  • Synthetic method for flower type silver micron particles
  • Synthetic method for flower type silver micron particles
  • Synthetic method for flower type silver micron particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0029] The synthetic method of the present embodiment flower shape silver microparticles comprises the following steps:

[0030] ① Weigh 1.0004g (0.005680 mol) white solid powder of ascorbic acid (CAS No.: 50-81-7)) into a beaker filled with 10mL of deionized water, stir to dissolve ascorbic acid and set aside, the concentration of ascorbic acid solution is 0.5680 mol / L.

[0031] Weigh 0.9987g of silver nitrate (0.005879mol) crystals and add it to 10mL of deionized water, stir to dissolve the silver nitrate for use, and the concentration of the silver nitrate solution is 0.5879 mol / L.

[0032] The molar ratio of ascorbic acid to silver nitrate is preferably controlled at 0.8-1.2:1, and is 0.97:1 in this embodiment.

[0033] The concentration of the ascorbic acid solution is preferably controlled at 0.5 mol / L-0.7 mol / L; the concentration of the silver nitrate solution is preferably controlled at 0.5 mol / L-0.75 mol / L.

[0034] ② Add the ascorbic acid solution configured in ste...

Embodiment 2）

[0042] The synthetic method of the flower-shaped silver microparticles of the present embodiment is the same as that of Example 1, except that:

[0043] In step ①, add 1.0006g of ascorbic acid to 10ml of deionized water, stir to dissolve the ascorbic acid; add 0.9985g of silver nitrate crystals to 10ml of deionized water, and stir to dissolve the silver nitrate.

[0044] In step ②, add the ascorbic acid solution prepared in step ① into the silver nitrate solution, and immediately add 1.6021 g of cleaned 201 stainless steel sheet to the mixed solution; while the reaction material is magnetically stirred, use a micro pump to feed air into the reaction material , After 240min, the reaction ended. The air flow rate is 8 mL / min.

[0045] The SEM results of the product are shown in figure 2 , the product has a relatively uniform morphology and good dispersion. The SEM photo of the powder shows that the particles are rose-shaped, and the particle size of the particles is about 3 ...

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
particle diameteraaaaaaaaaa
sizeaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for synthesizing flower-shaped silver micro-particles. The method comprises the following steps of respectively measuring ascorbic acid solid powder and silver nitrate crystal, and respectively dissolving the ascorbic acid solid powder and the silver nitrate crystal into deionized water for standby use; placing the prepared ascorbic acid solution into the silver nitrate solution, and ensuring the mol ratio of the ascorbic acid and the silver nitrate to be (0.8-1.2):1; immediately adding a cleaned stainless steel sheet into the mixed solution; magnetically stirring the reaction materials for 180min to 360min after the stainless steel sheet is added, and ending the reaction; taking out and centrifugally separating the stainless steel sheet in the material after the reaction is ended, and precipitating and washing the stainless steel sheet to obtain the flower-shaped silver micro-particles. By adopting the method, the shape of a product is controllable, simplicity in operation can be realized, the condition is moderate, and the repeatability is good.

Description

[0001] This application is a divisional application of the invention patent application with the application number 201310526203.X and the application date of October 30, 2013, and the invention name is "Synthesis method of flower-shaped silver microparticles". technical field [0002] The invention relates to a method for synthesizing the shape of silver particles, in particular to a method for synthesizing flower-shaped silver micro particles. Background technique [0003] Silver has unique properties such as catalysis, antibacterial, nonlinear optics, and electrical and thermal conductivity, and has broad application prospects in the fields of inorganic antibacterial agents, catalytic materials, and conductive pastes. The properties and applications of silver are strongly dependent on the size and morphology of silver particles. Silver is currently synthesized in different shapes, sizes and structures. [0004] Nano-metal particles have agglomeration and bridging phenome...

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): B22F9/24
Inventor 张春勇郑纯智文颖频张国华关明云沙路迪吴桐程洁红
Owner JIANGSU UNIV OF TECH
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