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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AI-Extracted 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 problem...
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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.

Application Domain

Technology Topic

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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

Examples

  • Experimental program(8)
  • Effect test(2)

Example Embodiment

[0034] Example 1
[0035] The boron-doped diamond composite electrode material of this embodiment includes a BDD layer as a substrate, an Au layer disposed on the BDD layer, and TiO disposed on the Au layer 2 Floor.
[0036] 2. An embodiment of the preparation method of boron-doped diamond composite electrode material, where BDD is carried on a silicon substrate (silicon-based BDD), and silicon-based BDD is purchased from Zhengzhou Abrasives and Grinding Research Institute Co., Ltd., and can also be used There are techniques for preparation, such as preparation by microwave plasma chemical vapor deposition.

Example Embodiment

[0037] Example 2
[0038] The preparation method of the boron-doped diamond composite electrode material of the present invention describes the preparation of the boron-doped diamond composite electrode material of Example 1, and specifically includes the following steps:
[0039] 1) Use acetone, absolute ethanol, and deionized water to clean the BDD ultrasonically. Sputter Au on the surface of the BDD using an ion sputtering instrument 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 carried out on the Au layer of the Au/BDD composite material, and the electrophoretic solution for electrophoretic deposition is TiO 2 Sol, electrophoretic deposition and heat treatment to TiO 2 Conversion of sol to TiO 2 , Namely get TiO on the surface of 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 salt tetrabutyl titanate; the molar ratio of organic titanium salt tetrabutyl titanate and water is 1:5; the electrophoretic deposition voltage is 40V, and the electrophoretic deposition time is 60s; the heat preservation The temperature is 450°C, the holding time is 1h, and the heating rate is 5°C/min.

Example Embodiment

[0041] Example 3
[0042] The preparation method of the boron-doped diamond composite electrode material of this embodiment includes the following steps:
[0043] 1) Use acetone, absolute ethanol, and deionized water to clean the BDD ultrasonically. Sputter Au on the surface of the BDD using an ion sputtering instrument 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 carried out on the Au layer of the Au/BDD composite material, and the electrophoretic solution for electrophoretic deposition is TiO 2 Sol, electrophoretic deposition and heat treatment to TiO 2 Conversion of sol to TiO 2 , Namely get TiO on the surface of 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 salt tetrabutyl titanate; the molar ratio of organic titanium salt tetrabutyl titanate and water is 1:5; the electrophoretic deposition voltage is 40V, and the electrophoretic deposition time is 60s; the heat preservation The temperature is 450°C, the holding time is 1h, and the heating rate is 5°C/min.
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PUM

PropertyMeasurementUnit
Hall mobility486.0cm²·s/V
tensileMPa
Particle sizePa
strength10

Description & Claims & Application Information

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