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Gold-silver alloy nano porous metal material and preparation technology thereof

A gold-silver alloy and nano-porous technology is applied in the preparation of porous metal materials and the preparation of gold-silver alloy nano-porous metal materials to achieve the effects of uniform pores and simple preparation process.

Inactive Publication Date: 2013-05-15
SUZHOU GULI BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Gold is recognized as the most chemically inert element among metal elements. Therefore, gold has long been considered to be catalytically inert. Due to the special properties of gold, there is currently no report on the preparation of gold or gold alloy nanoporous gold materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1: Composed of high-purity (>99.990 / 0) gold and silver in a weight ratio of 1:1, the gold and silver are melted in air at a high temperature of 800°C, cold-rolled into sheets, and annealed in a muffle furnace at 700°C 20h, take 1.5*2.5cm, 25μm thick gold-silver alloy as anode, platinum sheet as cathode, voltage 0.6-1.0V for electrode reaction, after 10-15min, stop reaction, wash with ultrapure water until neutral, dry for 12h , the prepared porous gold with a pore size of 15±2nm.

Embodiment 2

[0012] Example 2: Composed of high-purity (>99.990 / 0) gold and silver in a weight ratio of 1:1, the gold and silver are melted in air at a high temperature of 1200°C, cold-rolled into sheets, and annealed in a muffle furnace at 900°C 20h, take 1.5*2.5cm, 25μm thick gold-silver alloy as anode, platinum sheet as cathode, voltage 0.6-1.0V for electrode reaction, after 10-15min, stop reaction, wash with ultrapure water until neutral, dry for 12h , the prepared porous gold with a pore size of 15±2nm.

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PUM

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Abstract

The invention relates to a gold-silver alloy nano porous metal material and a preparation technology thereof, and relates to the field of preparation of gold-silver alloy nano porous metal material. The gold-silver alloy nano porous metal material is mainly characterized by consisting of high-purity (greater than 99.990 / 0) gold and silver at a weight ratio of 1:(1.0-1.2); and the gold-silver alloy nano porous metal material is porous gold with a pore diameter of 15+ / -2nm and prepared by electrochemical corrosion. Through the invention, the gold-silver alloy nano porous gold with the pore diameter of 15+ / -2nm and uniform pores can be prepared, and the preparation technology is simple and effective.

Description

Technical field: [0001] The invention relates to the field of preparation of a porous metal material, in particular to the field of preparation of a gold-silver alloy nano-porous metal material. technical background: [0002] Nanoporous metal is a kind of nano-metal material with special structure. Although nanoporous metal materials are a kind of nanostructured bulk metal materials, the nanoscale pore walls and pores make them have the same small size effect, surface effect, quantum size effect, and macroscopic quantum tunneling effect as other nanomaterials. etc., endowing this kind of materials with special properties in magnetic, optical, electrical and other aspects. Therefore, nanoporous metal materials have broad application prospects in catalysis, filtration, surface plasmon resonance, sensing, heat exchange, drug delivery, etc. due to their high specific surface area, light weight, and saving raw materials. [0003] At present, the methods used to prepare nano...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C5/00C25F3/14
Inventor 吴娟
Owner SUZHOU GULI BIOTECH
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