Double-anode electro-deposition preparation method of copper particles with multi-corner-angle structure

Abstract

The invention provides a double-anode electro-deposition preparation method of copper particles with a multi-corner-angle structure. The double-anode electro-deposition preparation method comprises the following steps that S1, an acidic copper salt electrolyte is poured into an electrolytic bath; S2, a direct-current cathode and a direct-current anode are connected with a negative electrode and a positive electrode of a direct-current power supply correspondingly, then the direct-current cathode and the direct-current anode are inserted into the acidic copper salt electrolyte in an electrolytic bath, and after a pulse anode is connected with a positive electrode of a pulse power supply, the pulse anode is inserted into the acidic copper salt electrolyte in the electrolytic bath; S3, the acidic copper salt electrolyte is stirred, and electrolysis is conducted at the same time; and S4, electrolysis is completed, and the copper particles of the multi-corner-angle structure are obtained on the surface of the direct-current cathode. According to the method, double-anode electro-deposition is carried out by introducing the pulse anode on the basis of a traditional direct-current electro-deposition technology, and the obtained copper particles have more corner angles.

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...

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

Images