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Preparation method for nano porous metal materials

A metal material, nanoporous technology, applied in metal material coating process, nanotechnology, liquid chemical plating and other directions, to achieve great application prospects, low reaction temperature, and simple operation.

Active Publication Date: 2014-08-20
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese Patent No. CN102943187 "Preparation Method of Nanoporous Copper" introduces a method for preparing nanoporous copper by dealloying, but the prepared product is film-like nanoporous copper
[0004] Chinese Patent No. CN95102640.2 is the patent application material of "A Preparation Method of Sponge Nickel Foam". This patent proposes that polyurethane foam is used as a template to prepare foam metal by magnetron sputtering and electroplating. Due to the pores of its own template And its organization is in the millimeter level, so the pore size of the prepared metal foam is in the millimeter level, which does not belong to the field of nanoporous materials

Method used

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  • Preparation method for nano porous metal materials
  • Preparation method for nano porous metal materials
  • Preparation method for nano porous metal materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Example 1 Preparation of Nanoporous Copper Material

[0063] First prepare the electroless copper plating solution, the composition of the electroless copper plating solution is: sodium citrate 15g / L, boric acid 30g / L, copper sulfate 6g / L, sodium hypophosphite 30g / L. The melamine-formaldehyde hydrogel with evenly distributed Pd catalytic active centers in the structure was prepared by the sol-gel method, and the hydrogel was immersed in the prepared electroless copper plating solution. Implement electroless plating in the middle, the length of electroless plating is 90 days, wherein every 3 days change one electroless copper plating solution, the number of times of reaction is 15 times, obtains copper-hydrogel composite material, then this composite material is washed with deionized water, until There are no metal ions in the cleaning solution, and the solvent exchange is performed with acetone until the moisture content in the acetone after exchange is measured by a tr...

Embodiment 2

[0064] Example 2 Preparation of Nanoporous Copper Material

[0065] According to the preparation process of the nanoporous copper material described in Example 1, the difference is that the heat treatment temperature in the technical parameters is 600°C. The specific surface area of ​​the prepared bulk nanoporous copper is 23.215m 2 g -1 , the average pore diameter is 7.316nm.

Embodiment 3

[0066] Example 3 Preparation of Nanoporous Copper Material

[0067] According to the preparation process of the nanoporous copper material described in Example 1, the difference is that the heat treatment temperature in the technical parameters is 700°C. The specific surface area of ​​the prepared bulk nanoporous copper is 12.631m 2 g -1 , the average pore diameter is 8.529nm.

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Abstract

The invention provides a preparation method for nano porous metal materials. The preparation method comprises the following steps: firstly, preparing a melamine-aldehyde organic aerogel template, making the melamine-aldehyde organic aerogel template soak into chemical plating solutions for several days, performing chemical plating at a certain temperature, and then, performing deionized water cleaning, solvent exchange, drying and heat treatment, and thus, the nano porous metal materials can be prepared. The reaction conditions of the preparation method provided by the invention are mild, the operation is simple, the specific surface area of products is higher, the average pore diameter is about 10nm, and the structures of the products are uniform. The nano porous metal materials prepared by the method provided by the invention have better application prospects in the fields of laser inertial confinement fusion, hydrogen storage, electrochemical energy storage, photochemical catalysis and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of nanoporous metal materials, and in particular relates to a preparation method of nanoporous metal materials. Background technique [0002] Nanoporous metal material is a new type of material with dual characteristics of structure and function, and has many excellent properties, such as high specific surface area, low mass density, nanoscale continuous pores, good ductility, good electrical conductivity / thermal properties, etc. . It has great application prospects in laser inertial confinement fusion, hydrogen storage, electrochemical energy storage, photochemical catalysis and other fields. [0003] At present, the preparation methods of nanoporous metal materials mainly include dealloying method and template method. The dealloying method, that is, selective corrosion, is through the large difference in electrode potential between the alloy components, so that the electrochemically active...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/40C23C18/36C23C18/44B82Y40/00
Inventor 王朝阳黄小丽付志兵杨曦袁磊张厚琼
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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