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A double anode electrodeposition preparation method of copper particles with multi-angular structure

A technology of copper particles and multi-angles is applied in the field of double anode electrodeposition preparation of copper particles, which can solve the problems of increasing the complexity and cost of preparation, and failing to raise them, achieving easy industrial-scale production, reducing the complexity of steps, and widening The effect of the application foreground

Active Publication Date: 2022-05-17
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the Chinese patent (application number: 201710459021.3, patent name: a copper particle with a multi-angular structure and its preparation method) discloses a copper particle with a multi-angular structure and its preparation method, and successfully produced a copper particle with a multi-angular structure. Copper particles with a multi-angular structure, but failed to propose a way to selectively control the number of extra corners; and has special requirements for the environment, requiring a protective atmosphere, which increases the complexity and cost of preparation

Method used

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  • A double anode electrodeposition preparation method of copper particles with multi-angular structure
  • A double anode electrodeposition preparation method of copper particles with multi-angular structure
  • A double anode electrodeposition preparation method of copper particles with multi-angular structure

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Effect test

Embodiment 1

[0029] Step S1: Pour the acidic copper salt electrolyte into the electrolytic cell; the acidic copper salt electrolyte is made of distilled water, CuSO 4 ·5H 2 O, Gelatin, H 2 SO 4 Worthy, and CuSO 4 Concentration is 80g / L, gelatin concentration is 2g / L, H 2 SO 4 Used to control the pH of the electrolyte to 1;

[0030] Step S2: After connecting the DC cathode and the DC anode to the negative and positive poles of the DC power supply respectively, insert them into the acid copper salt electrolyte in the electrolytic cell; after connecting the pulse anode to the positive electrode of the pulse power supply, insert the acidic copper salt in the electrolytic cell In the electrolyte; the distance between the DC cathode and the DC anode is 5cm, and the distance between the DC cathode and the pulse anode is 0.1cm; the DC cathode is a square titanium sheet (purity 99.99%), the length and width are 3cm, and the thickness is 2mm. The cathode is ground and polished in advance, rins...

Embodiment 2

[0035] Step S1: Pour the acidic copper salt electrolyte into the electrolytic cell; the acidic copper salt electrolyte is made of distilled water, CuSO 4 ·5H 2 O, Gelatin, H 2 SO 4 Worthy, and CuSO 4 Concentration is 50g / L, gelatin concentration is 1g / L, H 2 SO 4 Used to control the pH of the electrolyte to 2;

[0036] Step S2: After connecting the DC cathode and the DC anode to the negative and positive poles of the DC power supply respectively, insert them into the acid copper salt electrolyte in the electrolytic cell; after connecting the pulse anode to the positive electrode of the pulse power supply, insert the acidic copper salt in the electrolytic cell In the electrolyte; the distance between the DC cathode and the DC anode is 10cm, and the distance between the DC cathode and the pulse anode is 0.2cm; the DC cathode is a pure square titanium sheet (purity 99.99%), the length and width are 5cm, and the thickness is 4mm. The cathode is ground and polished in advance...

Embodiment 3

[0041] Step S1: Pour the acidic copper salt electrolyte into the electrolytic cell; the acidic copper salt electrolyte is made of distilled water, CuSO 4 ·5H 2 O, Gelatin, H 2 SO 4 Worthy, and CuSO 4 Concentration is 80g / L, gelatin concentration is 2g / L, H 2 SO 4 Used to control the pH of the electrolyte to 1;

[0042] Step S2: After connecting the DC cathode and the DC anode to the negative pole and the positive pole of the DC power supply respectively, insert them into the acidic copper salt electrolyte in the electrolytic cell; the distance between the DC cathode and the DC anode is 5 cm; the DC cathode is a square titanium sheet ( Purity 99.99%), length and width are 3cm, thickness is 2mm, the DC cathode is polished and polished in advance, and dried after being rinsed with distilled water and absolute ethanol; 6cm long;

[0043] Step S3: Stir the acidic copper salt electrolyte and carry out electrolysis at the same time, the stirring rate is 1200rpm, during the ele...

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Abstract

The invention provides a double-anode electrodeposition preparation method for copper particles with a multi-angular structure, comprising the following steps: step S1: pour the acidic copper salt electrolyte into the electrolytic cell; step S2: connect the DC cathode and the DC anode to the DC Insert the negative and positive electrodes of the power supply into the acidic copper salt electrolyte in the electrolytic cell; connect the pulse anode to the positive electrode of the pulse power supply and insert it into the acidic copper salt electrolyte in the electrolytic cell; Step S3: Stir the acidic copper salt electrolysis The liquid is electrolyzed at the same time; step S4: the electrolysis is completed, and copper particles with multi-angular structures are obtained on the surface of the DC cathode. The present invention conducts double-anode electrodeposition by introducing pulse anodes on the basis of traditional direct current electrodeposition technology, and the obtained copper particles have more number of edges and corners.

Description

technical field [0001] The invention relates to the technical field of electrochemically synthesized nanometer materials, in particular to a double-anode electrodeposition preparation method for copper particles with multi-angular structures. Background technique [0002] In recent years, due to the excellent properties of copper metal materials in electricity, heat, and catalysis, and their low price, they have attracted widespread attention. Broad application prospects. [0003] The increase of the specific surface area will further improve the relevant performance. Usually, a larger surface area is obtained by preparing dendritic particles, but the increased surface area of ​​dendritic particles is limited. If particles with a higher specific surface area can be prepared, the performance will be further improved. promote. [0004] The research on the preparation of copper particles has been carried out for a long time, and many preparation methods have been formed, such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C5/02
CPCC25C5/02Y02P10/20
Inventor 刘晓伟杨宝朔刘磊艾远
Owner WUHAN UNIV
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