Nano metal leaf and preparation method thereof

A technology of nano-metal and nano-metal particles, applied in the fields of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of inability to large-scale production, complex and multi-step preparation process, harsh experimental conditions, etc. To achieve the effect of easy control of reaction conditions, good dispersion and uniform size
CN102416468AInactive Publication Date: 2012-04-18SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
Publication Date
2012-04-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a nano metal leaf and a preparation method thereof. Pure nano metal particles with controllable morphology and size are mixed and reacted at room temperature with a surface modifier which is dispersed in a polar organic solvent and has more than two active functional groups, and the nano metal leaf using the nano metal as a skeleton is obtained after the reaction is finished, wherein the radial size of the nano metal leaf is in several microns, the thickness of the nano metal leaf is in dozens of nanometers, and the nano metal leaf has laminar structure. The nano metalleaf is prepared at room temperature in one step by mixing different polar solvents, adding the specific surface modifier into the mixed polar solvent and adjusting the decomposition and self-assembly processes of the nano metal crystal; the prepared nano metal leaf has the advantages of uniform size, high controllability, high yield and good dispersibility in the polar inorganic solvent; the reaction conditions are easily controlled; and the nano metal leaf can be produced in a large scale.
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Description

technical field

[0001] The invention relates to a preparation method of a nano metal material, in particular to a method for forming a nano metal leaf by self-assembly of a monodisperse nano metal, and belongs to the technical field of material chemistry. Background technique

[0002] Nanoscale noble metal or semiconductor particles have been widely used in semiconductors, biomedicine, photoluminescent devices, solar cells, infrared detectors, optical fiber communications, pigments, lubricants, etc. due to their excellent optical, electrical, magnetic, and catalytic properties. medicines and other fields. The application of nanometer metal or semiconductor particles is becoming more and more widespread, making the preparation method of noble metal or semiconductor particles a focus of attention. These nanoparticles are further assembled into a two-dimensional structure or even a three-dimensional structure, because they will exhibit some optical, electrical, magnetic, catal...

Claims

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