Preparation method of cuprous oxide nano material and hydrogen evolution performance of cuprous oxide nano material

A nanomaterial, cuprous oxide technology, applied in the field of nanomaterials, can solve problems such as inability to precisely control, and achieve the effects of controllable synthesis conditions, short time consumption, and broad application prospects.

Inactive Publication Date: 2018-11-30
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] According to the deficiencies in the prior art above, the technical problem to be solved by the present invention is to propose a method for preparing cuprous oxide nanomaterials, through the gas phase reduction method, using ethylene glycol and diethylene glycol as reducing agents, different shapes Copper-based micro and nano materials are copper sources, and cuprous oxide micro and nano materials with shape retention are successfully prepared under an inert atmosphere at a certain temperature, which solves the problem of inability to precisely control Cu in the prior art. 2 Disadvantages of the formation of O micro and nano materials

Method used

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  • Preparation method of cuprous oxide nano material and hydrogen evolution performance of cuprous oxide nano material
  • Preparation method of cuprous oxide nano material and hydrogen evolution performance of cuprous oxide nano material
  • Preparation method of cuprous oxide nano material and hydrogen evolution performance of cuprous oxide nano material

Examples

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Embodiment 1

[0040]A preparation method for cuprous oxide nanomaterials, the specific steps are as follows: take 100mg of copper hydroxide nanomaterials and evenly lay them on a porcelain boat, take another porcelain boat, add 2mL of ethylene glycol reducing agent, and place the two porcelain boats in sequence Put it in a tube furnace, seal it, pass argon gas into the tube furnace for 30min, and heat it to 200°C at a heating rate of 2°C / min, then keep it at 200°C for 2h, after the reaction, The target product is obtained, and the scanning electron microscope image of the prepared cuprous oxide nanomaterial is shown in figure 1 , transmission electron microscope image see figure 2 .

Embodiment 2

[0042] This example is the same as Example 1, except that the temperature of the heat preservation reaction in this example is 220°C.

[0043] The scanning electron microscope images of the prepared cuprous oxide nanomaterials are shown in image 3 , transmission electron microscope image see Figure 4 .

Embodiment 3

[0045] This example is the same as Example 1, except that the temperature of the heat preservation reaction in this example is 240°C.

[0046] The scanning electron microscope images of the prepared cuprous oxide nanomaterials are shown in Figure 5 , transmission electron microscope image see Image 6 .

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Abstract

The invention discloses a preparation method of a cuprous oxide nano material and hydrogen evolution performance of the cuprous oxide nano material, and belongs to the technical field of nanometer materials. According to the preparation method, ethylene glycol and diethylene glycol are used as reducing agents, copper hydroxide and basic copper carbonate with specific morphology are used as coppersources, and the copper hydroxide and the basic copper carbonate copper are reduced to form cuprous oxide nano material with maintained morphology under the protection of inert gas through a gas phasereduction method. The reaction steps are simple and are environmentally friendly, the obtained product does not need to be washed, and a pure cuprous oxide product can be obtained. According to the preparation method provided by the invention, the simple and rapid method is adopted for synthesizing the cuprous oxide nano material with the maintained morphology, and the prepared cuprous oxide nanomaterial has the performance of electro-catalytic hydrogen evolution.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a method for preparing a cuprous oxide nanometer material and its hydrogen evolution performance. Background technique [0002] Cuprous oxide (Cu 2 O), as a p-type semiconductor material with unique optical properties, has broad application prospects in the fields of electronic devices, optical devices, gas sensors, photocatalysis, antibacterial, biosensors, and electrode materials for lithium-ion batteries. The bandgap width of cuprous oxide is 2.11eV. Due to the quantum size effect, cuprous oxide exhibits unique optical, electrical and photoelectrochemical properties and catalytic activity as the particle size decreases. Researchers have also used wet chemical methods, Various preparation routes such as solid state reaction method and electrochemical method have successfully synthesized cuprous oxide micro and nano Material. [0003] At present, the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02B82Y30/00B01J23/72
CPCB01J23/72B01J35/004B82Y30/00C01G3/02C01P2002/72C01P2004/03C01P2004/04
Inventor 汪美芳倪永红
Owner ANHUI NORMAL UNIV
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