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Method for preparing nano-nickel composite with protection of organic single molecular layer

A monomolecular layer, nano-nickel technology, applied in the direction of coating, etc., can solve the problems of harsh conditions, low yield, single variety, etc., and achieve the effect of low cost, high yield and uniform distribution

Inactive Publication Date: 2007-04-18
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of harsh conditions, low yield and single variety in the previous MPC preparation technology, and provide a method for preparing an organic monomolecular layer protected nano-nickel composite with simple process and high yield

Method used

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  • Method for preparing nano-nickel composite with protection of organic single molecular layer
  • Method for preparing nano-nickel composite with protection of organic single molecular layer
  • Method for preparing nano-nickel composite with protection of organic single molecular layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take 0.6M 95% ethanol NiCl 2 Add 15ml of 0.6M dodecylmercaptan 95% ethanol solution to 15ml of the solution, stir evenly, heat up to 60°C for use;

[0018] Take 20ml of 2.5mol / L hydrazine hydrate, add it to the above solution, keep stirring for 1-4 hours, filter the reacted product, rinse the obtained solid with a large amount of ethanol and acetone, and then dry it in vacuum at 80°C.

[0019] FIG. 1 is a transmission electron micrograph of the prepared organic monomolecular layer protected nano-copper composite. It can be seen that the prepared nanoparticles have a uniform particle size, no agglomeration, and a particle size of 4-7nm. Figure 2 is the XRD pattern of the prepared nanoparticles, from which it can be seen that the prepared organic monomolecular layer protective nanocomposite contains cubic nickel.

Embodiment 2

[0021] Take 0.6M 95% ethanol NiCl 2 Add 7ml of 0.6M 95% ethanol solution of hexanethiol to 15ml of the solution, stir evenly, heat up to 60°C for use;

[0022] Take 10ml of 2.5mol / L hydrazine hydrate, add it to the above solution, keep stirring and react for 1-4 hours, filter the reacted product, rinse the obtained solid with a large amount of ethanol and acetone, and then dry it in vacuum at 80°C.

[0023] Fig. 3 is a transmission electron micrograph of the prepared organic monomolecular layer protected nano-nickel composite. It can be seen that the prepared nanoparticles have a uniform particle size, basically no agglomeration, and a particle size of 25nm.

Embodiment 3

[0025] Take 0.3M 95% ethanol NiCl 2 Add 30ml of 1M stearyl mercaptan solution in 95% ethanol to 30ml of the solution, stir evenly, heat up to 60°C for use;

[0026] Take 10ml of 2.5mol / L hydrazine hydrate, add it to the above solution, keep stirring and react for 1-4 hours, filter the reacted product, rinse the obtained solid with a large amount of ethanol and acetone, and then dry it in vacuum at 80°C.

[0027] Fig. 4 is an XRD pattern of the prepared organic monomolecular layer protected nano-nickel composite nano, which shows that the prepared organic monomolecular layer protected nano-composite contains cubic nickel.

[0028] Note: 95% ethanol in embodiment 1-3 refers to weight percent content.

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Abstract

A process for preparing the organic single molecular layer protected Ni nanoparticle includes such steps as mixing the alcohol solution of Ni salt with the alcohol solution of S-contained compound and chemical reducing by hydrazine hydrate.

Description

technical field [0001] The invention relates to a preparation method of an organic monomolecular layer protected nano-nickel composite. Background technique [0002] Due to the characteristics of small size, large specific surface area, quantum size effect and macroscopic quantum tunneling effect, nickel nanoscale materials and their composites have shown novel properties in terms of light, electricity, magnetism and chemistry. The research on the preparation, performance and application of nickel nanomaterials has been widely concerned at home and abroad. Among them, organic monolayer protected nanoparticles (MPC) are different from traditional colloids and nanoparticles prepared by other methods. It usually uses small organic molecules as ligands, and the condensed phase and small organic molecules pass covalent or non-covalent bonds. Assembled supramolecular systems in which the properties of the individual components remain largely unaffected. MPC can be repeatedly sep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/02
Inventor 陈建敏陈磊周惠娣张定军万宏启
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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