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Method for preparing triangular copper nanosheet in single-step manner by using electrochemical method

A triangular and copper nanotechnology, applied in the field of single-step preparation of triangular copper nanosheets, can solve the problems of cumbersome, single-step simple synthesis, difficult preparation, etc., and achieve simple preparation process, reduce cumbersome steps, and cheap and easy-to-obtain raw materials Effect

Active Publication Date: 2021-05-14
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the strong tendency of metals to be three-dimensional close-packed and three-dimensional growth into three-dimensional particles, it is very challenging to obtain copper nanosheets with a two-dimensional structure, especially the preparation in the solution phase is even more difficult.
[0006] In the prior art, the Chinese patent (application number: 201910282722.3, patent name: a triangular-shaped elemental copper nanosheet and its preparation method) discloses a triangular-shaped elemental copper nanosheet and its preparation method, and proposes The preparation method of triangular copper nanosheets is prepared by hydrothermal method, but it needs to configure multiple solutions and carry out multiple steps, which is cumbersome and cannot be synthesized in a single step

Method used

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  • Method for preparing triangular copper nanosheet in single-step manner by using electrochemical method
  • Method for preparing triangular copper nanosheet in single-step manner by using electrochemical method

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Effect test

Embodiment 1

[0028] A method for preparing triangular copper nanosheets in a single step using an electrochemical method is provided, comprising the steps of:

[0029] S1: Preparation of CuSO 4 electrolyte;

[0030] Specifically: Weigh 5g of copper sulfate pentahydrate crystals with an electronic balance and add them to a beaker, then measure 50ml of distilled water with a measuring cylinder, add the distilled water into the beaker along the inner wall of the beaker, and stir with a glass rod while adding, to obtain CuSO 4 electrolyte.

[0031] S2: making copper sheet growth substrate;

[0032] Specifically: put a copper disc with a diameter of 8mm and a thickness of 1.5mm into a resistance furnace, set the temperature of the resistance furnace to 500°C, and set the time range to 2h. The copper disc is roughly ground to 4000 mesh with sandpaper, and then polished on a polishing machine until the sandpaper mesh of the polishing machine is 7000 mesh.

[0033] S3: preparing triangular cop...

Embodiment 2

[0037] A method for preparing triangular copper nanosheets in a single step using an electrochemical method is provided, comprising the steps of:

[0038] S1: Preparation of CuSO 4 electrolyte;

[0039] Specifically: Weigh 5g of copper sulfate pentahydrate crystals with an electronic balance and add them to a beaker, then measure 50ml of distilled water with a measuring cylinder, add the distilled water into the beaker along the inner wall of the beaker, and stir with a glass rod while adding, to obtain CuSO 4 electrolyte.

[0040] S2: making a growth substrate;

[0041] Specifically: Put a copper square sheet with a side length of 12mm and a thickness of 1.5mm into a resistance furnace, set the temperature of the resistance furnace to 500°C, and set the time range to 2h. After the end, put the round copper sheet into distilled water to cool quickly. Hand-grind the copper square sheet to 4000 mesh with sandpaper, and then put it on a polishing machine to polish it until the...

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Abstract

The invention discloses a method for preparing a triangular copper nanosheet in a single-step manner by utilizing an electrochemical method. The method comprises following steps that S1, an electrolytic reaction tank is prepared and comprises a culture dish, a cathode support plate, an anode probe and a voltage-stabilized direct-current power supply; S2, a copper sheet growth substrate is placed on the cathode support plate, the cathode support plate is placed at the bottom of the culture dish, a CuSO4 electrolyte is poured into the culture dish, the anode probe is perpendicularly inserted into the electrolyte in a manner of facing the center of the copper sheet growth substrate and is away from the copper sheet growth substrate by a distance, an anode of the voltage-stabilized direct-current power supply is connected with the anode probe, and a cathode of the voltage-stabilized direct-current power supply is connected with the cathode support plate; and S3, the temperature is adjusted, electrifying is carried out for electrolysis, and the triangular copper nanosheet is grown on the upper surface of the copper sheet growth substrate after a period of time. According to the method, the triangular copper nanosheet is synthesized in the single-step manner through the electrochemical method, raw materials are cheap and easy to obtain, the preparation process is simple, no additive is additionally introduced, the obtained copper nanosheet is high in purity, the size can be adjusted and controlled at will, and wide application prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of electrochemically synthesized nanomaterials, in particular to a method for preparing triangular copper nanosheets in a single step using an electrochemical method. Background technique [0002] In recent years, due to the small size effect, large specific surface area, quantum size effect, and macroscopic quantum tunneling effect of nanomaterials, they have shown many properties that conventional materials do not have in terms of magnetism, light, electricity, and heat, and have been favored by people. Widely concerned, it has broad application prospects in electronic materials, optical materials, catalysis, magnetic materials, biomedical materials, etc. [0003] As an important part of nanomaterials, metal nanomaterials such as gold, silver, and copper play an important role in the research and application of many fields due to their excellent properties. Compared with nano-materials such as gold and si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/38B82Y40/00B82Y30/00
CPCB82Y30/00B82Y40/00C25D3/38
Inventor 刘晓伟杨宝朔艾远
Owner WUHAN UNIV