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BDD composite electrode material and preparation method for same, BDD composite electrode

A boron-doped diamond and composite electrode technology, which is applied in the field of electrocatalytic oxidation electrode material preparation, can solve the problems of poor photocatalytic performance of BDD electrodes, poor photocatalytic performance, and poor performance of electrode materials, so that carrier transport is more likely to occur, The effect of simplifying the preparation method and improving the Hall mobility

Active Publication Date: 2020-01-03
河南省功能金刚石研究院有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first object of the present invention is to provide a boron-doped diamond composite electrode material to solve the problem of poor photocatalytic performance of BDD-containing electrode materials in the prior art
[0005] The second object of the present invention is to provide a method for preparing a boron-doped diamond composite electrode material, so as to solve the problems in the prior art that the preparation method of the BDD-containing electrode material is complex in process, high in cost, and poor in performance of the prepared electrode material
[0006] The third object of the present invention is to provide a boron-doped diamond composite electrode to solve the problem of poor photocatalytic performance of BDD-containing electrodes in the prior art

Method used

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  • BDD composite electrode material and preparation method for same, BDD composite electrode
  • BDD composite electrode material and preparation method for same, BDD composite electrode
  • BDD composite electrode material and preparation method for same, BDD composite electrode

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Embodiment 1

[0035] The boron-doped diamond composite electrode material of this embodiment includes a BDD layer as a substrate, an Au layer arranged on the BDD layer, and a TiO layer arranged on the Au layer 2 Floor.

[0036] Two, the embodiment of the preparation method of boron-doped diamond composite electrode material, wherein, BDD is loaded on the silicon substrate (silicon-based BDD), and silicon-based BDD is purchased from Zhengzhou Abrasive Grinding Research Institute Co., Ltd., and existing There are techniques for preparation, such as preparation by microwave plasma chemical vapor deposition method.

Embodiment 2

[0038] The preparation method of the boron-doped diamond composite electrode material of the present invention is to illustrate the preparation of the boron-doped diamond composite electrode material of embodiment 1, specifically comprising the following steps:

[0039]1) Use acetone, absolute ethanol, and deionized water to ultrasonically clean the BDD, and use an ion sputtering instrument to sputter Au on the surface of the BDD to obtain an Au / BDD composite material containing an Au layer; the sputtering target for sputtering Au is an Au target , the sputtering current is 4mA, and the sputtering time is 90s;

[0040] 2) Electrophoretic deposition is performed on the Au layer of the Au / BDD composite material, and the electrophoretic solution for electrophoretic deposition is TiO 2 Sol, electrophoretic deposition after heat treatment to TiO 2 Sol conversion to TiO 2 , that is, TiO is obtained on the surface of the Au layer 2 layer; repeated electrophoretic deposition and he...

Embodiment 3

[0042] The preparation method of the boron-doped diamond composite electrode material of the present embodiment comprises the following steps:

[0043] 1) Use acetone, absolute ethanol, and deionized water to ultrasonically clean the BDD, and use an ion sputtering instrument to sputter Au on the surface of the BDD to obtain an Au / BDD composite material containing an Au layer; the sputtering target for sputtering Au is an Au target , the sputtering current is 4mA, and the sputtering time is 60s;

[0044] 2) Electrophoretic deposition is performed on the Au layer of the Au / BDD composite material, and the electrophoretic solution for electrophoretic deposition is TiO 2 Sol, electrophoretic deposition after heat treatment to TiO 2 Sol conversion to TiO 2 , that is, TiO is obtained on the surface of the Au layer 2 layer; repeated electrophoretic deposition and heat treatment, the total number of treatments is 3 times; TiO 2 The sol is prepared by hydrolysis of organic titanium ...

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Abstract

The invention discloses a BDD composite electrode material and a preparation method for the same, and a BDD composite electrode. The BDD composite electrode material comprises a BDD layer which is taken as a substrate, an Au layer disposed on the BDD layer and a TiO2 layer disposed on the Au layer. The BDD composite electrode material disclosed by the invention is an electrode material with a Z-type carrier transport mechanism and has good electric and electrochemical performance; photoelectron catalysis performance of the electrode material is enhanced; and cost of the electrode material is reduced. The preparation method disclosed by the invention has the beneficial effects that the technology of the preparation method for the BDD contained electrode material is simplified; cost is reduced; and energy consumed by the prepared electrode material is reduced.

Description

technical field [0001] The invention relates to the technical field of preparation of electrocatalytic oxidation electrode materials, in particular to a boron-doped diamond composite electrode material and a preparation method thereof, and a boron-doped diamond composite electrode. Background technique [0002] Electrocatalytic oxidation is a form of advanced oxidation. Compared with other oxidation methods, it is an environmentally friendly technology and has great application prospects in sewage treatment. The key to electrocatalytic oxidation technology is the electrode material. As an electrode material, boron-doped diamond (BDD) has the characteristics of low background current, wide potential window, and strong corrosion resistance. It has great application potential in the field of electrocatalytic oxidation. However, the cost of BDD is relatively high, and the electrocatalytic efficiency still needs to be improved. [0003] “A simple process for the deposition of Ti...

Claims

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Application Information

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IPC IPC(8): C23C14/34C23C14/18C25D13/02C02F1/461
CPCC23C14/34C23C14/185C25D13/02C02F1/46109C02F2001/46142
Inventor 王海龙李强李智强闫宁王志强张珂皓王溢仁邵刚李明亮范冰冰许红亮卢红霞张锐
Owner 河南省功能金刚石研究院有限公司
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