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Boron-doped diamond composite electrode and preparation method and application thereof

A boron-doped diamond and composite electrode technology is applied in the field of boron-doped diamond composite electrodes and their preparation, which can solve the problems of high cost and complicated preparation process, and achieve the effects of low cost, simple operation and saving preparation time.

Active Publication Date: 2020-06-16
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation process is complicated and the cost is relatively high

Method used

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  • Boron-doped diamond composite electrode and preparation method and application thereof
  • Boron-doped diamond composite electrode and preparation method and application thereof
  • Boron-doped diamond composite electrode and preparation method and application thereof

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preparation example Construction

[0028] In the preparation process of the boron-doped diamond composite electrode of the present invention, the ball milling medium is absolute ethanol and zirconia balls, the total mass of boron-doped diamond raw materials, aluminum raw materials, boron raw materials and carbon raw materials and the quality of zirconia balls and absolute ethanol The ratio is 1:1.5:2.

[0029] The mold used in the preparation process of the boron-doped diamond composite electrode of the present invention is composed of tantalum metal and graphite sheet. In order to prevent the mixed precursor from reacting with the mold surface, boron nitride slurry is sprayed on the mold surface.

[0030] The boron-doped diamond used in the preparation process of the boron-doped diamond composite electrode of the present invention is boron-doped diamond powder, the particle size of which is 1-3.9 μm, and the content of boron-doped diamond in the boron-doped diamond powder is ≥99.9%.

[0031] The aluminum raw m...

Embodiment 1

[0036] The boron-doped diamond composite electrode of this embodiment is made of boron-doped diamond and Al 3 BC 3 Composite, the boron-doped diamond and Al 3 BC 3 The mass ratio is 9.5:0.5. Specifically, the boron-doped diamond is granular, the boron-doped diamond is granular, and the Al 3 BC 3 Fill the gap between boron-doped diamond particles.

Embodiment 2

[0038] The boron-doped diamond composite electrode of this embodiment is made of boron-doped diamond and Al 3 BC 3 Composite, the boron-doped diamond and Al 3 BC 3 The mass ratio is 9:1.

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Abstract

The invention belongs to the technical field of electrode materials, and particularly relates to a boron-doped diamond composite electrode and a preparation method and application thereof. The boron-doped diamond composite electrode comprises boron-doped diamond and Al3BC3, wherein the mass ratio of the boron-doped diamond to the Al3BC3 is (8.5-9.5): (0.5-1.5). The boron-doped diamond / Al3BC3 composite electrode is formed by uniformly mixing a boron-doped diamond raw material, an aluminum raw material, a boron raw material and a carbon raw material and compounding the raw materials at high temperature and high pressure. The boron-doped diamond composite electrode provided by the invention has good electrochemical performance. Compared with the prior art, the preparation process is simple tooperate, the preparation time is saved, and the cost is lower. The boron-doped diamond composite electrode disclosed by the invention has a relatively high degradation rate when being used for treating wastewater.

Description

technical field [0001] The invention belongs to the technical field of electrode materials, and in particular relates to a boron-doped diamond composite electrode and its preparation method and application. Background technique [0002] The amount of industrial sewage discharged in my country is increasing day by day, and the types of organic matter in sewage are becoming more and more complex. Traditional sewage treatment methods have been unable to treat sewage thoroughly and efficiently. As an advanced sewage and drinking water treatment technology, electrolysis water treatment technology has received widespread attention. In electrolytic water treatment technology, the electrode is the core part of the electrochemical reaction. Diamond has low background current, high signal-to-background ratio and signal-to-noise ratio, strong corrosion resistance, and the surface is not easy to adsorb. It is a clean electrode material. Based on these characteristics, diamond has beco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F101/30
CPCC02F1/46109C02F2001/46133C02F2101/308
Inventor 王海龙张珂皓王溢仁李强邵刚张锐许红亮卢红霞范冰冰刘雯
Owner ZHENGZHOU UNIV
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