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

Nano metal particles in high density and preparation method

A technology of nano metal particles and metal particles is applied in the field of modified nano gold or platinum and its preparation, which can solve the problems of poor water solubility and inability to use

Inactive Publication Date: 2006-02-01
江征平
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 1996, the British scientist Brust proposed the method of synthesizing gold nanoparticles in the solvent phase. Although it can increase the content of the particles, it still cannot be used in industries such as conductive coatings or inks due to its poor water solubility.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: formula 1, HAuCl4300mg; tetraoctylammonium bromideTOAB 2g; toluene 30ml; sodium borohydride, NaBH40.6M; 4-dimethylaminopyridine 4-dimethylamino-pyridine (DMAP) 30ml.

Embodiment 2

[0013] Example 2: formula 2, chloroplatinic acid H2PtCl6200mg; tetra-n-octyl ammonium bromide 2g; toluene 30ml; sodium borohydride 0.6M; 4-dimethylaminopyridine 30ml

Embodiment 3

[0014] Example 3: formula 3, chloroplatinic acid 20 mg; tetra-n-octyl ammonium bromide 3 g; toluene 40 ml; sodium borohydride 0.6 M; 4-dimethylaminopyridine 30 ml.

[0015] The present invention belongs to an improvement to the prior art. In addition to modifying the nanoparticles, it is important to add a novel aniline derivative, which can adjust the surface morphology of the nanoparticles in the aqueous solution and the pH value of the aqueous solution. In addition, this stabilizer can be replaced by biological polyelectrolyte molecules at any time, which can improve the biocompatibility and processability of the nanoparticles.

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
sizeaaaaaaaaaa
Login to View More

Abstract

A high-concentration metal nanoparticle product is prepared through proportionally mixing metal salt, toluene and dimethyl aminopyridine, adding sodium borohydride, reduction reaction to obtain metal particles, and transferring them into water under the protection of phenylamine derivative phase to obtain the target product composed of metal nanoparticles and surface stabilizer.

Description

Technical field: [0001] The invention relates to a metal nano particle and a preparation method thereof, in particular to a modified nano-gold or platinum and a preparation method thereof. Background technique: [0002] Gold particle solution is widely used in biological fields such as immunity, sensing, dyeing, catalysis, and DNA hybridization, mainly because of its good biocompatibility, stability, and its surface plasmon resonance in the visible range. In addition, due to the development of the electronic printing industry, the demand for high-concentration gold or silver nanoparticles is gradually increasing. But although there are many ways to synthesize gold, there are few ways to obtain nano-gold colloids that are stable in water and high in concentration. The traditional method of synthesizing gold particles is to reduce the solution of gold salt at high temperature, but the content of the particles obtained in this way is relatively low, 0.001%. In 1996, the Briti...

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): B22F9/24B22F1/00
Inventor 江征平
Owner 江征平