Copper-bearing bimetallic nanometer material with dentritic structure and method for manufacturing copper-bearing bimetallic nanometer material

A technology of bimetallic nano and nanomaterials, applied in the field of copper-containing bimetallic nanomaterials and its preparation, can solve the problems of complexity, high temperature, and step-by-step synthesis process, and achieve less time-consuming reaction, easy-to-obtain raw materials, and easy preparation The effect is simple and convenient

Inactive Publication Date: 2014-05-28
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Subsequently, Xia Younan's research group also reported a simple aqueous phase synthesis route, using palladium nanocrystals as crystal nuclei, and synthesizing three-dimensional Pd-Pt dendritic morphology by reducing potassium chloroplatinate with ascorbic acid, although this method can accurately control bimetallic The morphology and composition of nanocrystals, but there are still some limitations, such as high temperature may be required in the synthesis process, and the synthesis process needs to be carried out step by step, which is relatively complicated
In addition, the Yamauchi research group r...

Method used

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  • Copper-bearing bimetallic nanometer material with dentritic structure and method for manufacturing copper-bearing bimetallic nanometer material
  • Copper-bearing bimetallic nanometer material with dentritic structure and method for manufacturing copper-bearing bimetallic nanometer material
  • Copper-bearing bimetallic nanometer material with dentritic structure and method for manufacturing copper-bearing bimetallic nanometer material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Weigh 50.6mg P123 into a 20mL sample bottle, add 3.9mL water, stir to dissolve; then add 0.875mL, 0.1mol / L Cu(NO 3 ) 2 solution and 0.26mL, 9.56mg Au / mL HAuCl 4 solution, stirred to form a uniform reaction system solution; added 5mL, 0.1mol / L ascorbic acid for reduction for 1h; transferred the reacted solution to a centrifuge tube, centrifuged, and washed three times with water to obtain a dendritic gold-copper nanostructure. Such as figure 1 As shown, the nanoparticles are aggregated into a dendritic nanostructure. The dendritic nanostructure has a single shape, uniform size, and a size of about 25 nm. It is known as an alloy structure from XRD and EDS analysis.

Embodiment 2

[0038] Weigh 50.6mg P123 into a 20mL sample bottle, add 2.3mL water, stir to dissolve; then add 2.5mL, 0.1mol / L Cu(NO 3 ) 2 solution and 0.26mL, 9.56mg Au / mL HAuCl 4 solution, stirred to form a uniform reaction system solution; added 5mL, 0.1mol / L ascorbic acid for reduction for 1h; transferred the reacted solution to a centrifuge tube, centrifuged, and washed three times with water to obtain a dendritic gold-copper nanostructure. Such as figure 2 As shown, the dendritic nanostructure has a single morphology and an average size of 20 nm.

Embodiment 3

[0040] Weigh 50.6mg P123 into a 20mL sample bottle, add 3.9mL water, stir to dissolve; then add 0.875mL, 0.1mol / L CuCl 2 solution and 0.26mL, 9.56mg Au / mLHAuCl 4 solution, stirred to form a uniform reaction system solution; added 5mL, 0.1mol / L ascorbic acid for reduction for 1h; transferred the reacted solution to a centrifuge tube, centrifuged, and washed three times with water to obtain a dendritic gold-copper nanostructure. Such as image 3 As shown, the dendritic nanostructure has a single morphology and an average size of 35 nm.

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Abstract

The invention discloses a copper-bearing bimetallic nanometer material with a dentritic structure and a method for manufacturing the copper-bearing bimetallic nanometer material. The method includes manufacturing procedures of adding surfactants and mixed solution containing copper and another metal precursor into water solution; adding moderate reducing agents into the water solution to reduce the water solution. The copper-bearing bimetallic nanometer material and the method have the advantages that the dentritic nanometer structure is single in morphology and uniform in size, and components of the copper-bearing bimetallic nanometer material are controllable; raw materials required in the method are cheap and are easily available, the preparation procedures are simple and convenient, elapsed reaction time is short, and safe operation can be implemented; the dentritic nanometer structure can have important application in the catalysis and electrochemistry fields.

Description

technical field [0001] The invention relates to a copper-containing bimetallic nanometer material with a dendritic structure and a preparation method thereof. Background technique [0002] Metal nanomaterials with a dendritic structure have many applications in the fields of catalysis, electrochemistry, and optics due to their porous, large specific surface area, rough surface, and possible high-index crystal planes. Therefore, metal nanomaterials with a dendritic structure Materials and their preparation and applications have received extensive attention from researchers. [0003] Most of the current reports on dendritic metal nanomaterials are monometallic structures, but there are relatively few reports on dendritic bimetallic nanostructures. The seeding method is one of the most commonly used methods for preparing dendritic bimetallic nanostructures. For example, the Eichhorn group used gold nanoparticles as seeds to reduce platinum acetylacetonate in an organic solven...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F9/24
Inventor 张涛史丽华王爱琴
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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