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Titanium hydride nanotube-ruthenium titanium oxide coating titanium electrode preparation method

A technology of ruthenium-titanium oxide and nanotubes, which is applied in the field of preparation of titanium hydride nanotubes-ruthenium-titanium oxide-coated titanium electrodes, to achieve good electrical conductivity, mild preparation conditions, and good electrocatalytic activity

Inactive Publication Date: 2018-03-20
西安博岳环保科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

As far as we know, the introduction of TiH on the surface of titanium substrates 2 Nanotubes as the intermediate layer of coated titanium electrodes have not been reported yet

Method used

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  • Titanium hydride nanotube-ruthenium titanium oxide coating titanium electrode preparation method

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preparation example Construction

[0028]A kind of titanium hydride nanotube-ruthenium titanium oxide coating titanium electrode preparation method of the present invention, concrete steps are as follows,

[0029] Step 1, the titanium sheet is subjected to sandblasting treatment, ultrasonic treatment and chemical polishing treatment in sequence;

[0030] The ultrasonic process in step 1 is: each ultrasonic 15min in acetone and ethanol successively;

[0031] The process of chemical polishing in step 1 is: in HF / HNO 3 / H 2 Chemical polishing was carried out in a mixed solution of O for 1 min, where HF / HNO 3 / H 2 The volume ratio of O is 1:3:6;

[0032] Step 2: Use the titanium sheet treated in step 1 as the anode and the graphite as the cathode to perform constant voltage anodization; the composition of the electrolyte is as follows: 0.57g to 1.72gNH per 100mL of ethylene glycol solvent 4 F, 0.5g~4gH 2 O; the anodic oxidation voltage is a DC voltage of 10V-30V, the temperature is room temperature, the stirr...

Embodiment 1

[0054] The titanium sheet is subjected to sandblasting, ultrasonic treatment and chemical polishing in sequence; the ultrasonic process is: ultrasonic treatment in acetone and ethanol for 15 minutes; the chemical polishing process is: in HF / HNO 3 / H 2 Chemical polishing was carried out in a mixed solution of O for 1 min, where HF / HNO 3 / H 2 The volume ratio of O is 1:3:6;

[0055] With the treated titanium sheet as the anode and graphite as the cathode, constant voltage anodization is carried out, and the electrolyte composition is 0.57gNH per 100mL of ethylene glycol solvent 4 F, 0.5gH 2 O, the anodic oxidation voltage is 10V DC voltage, the temperature is room temperature, the stirring speed is 1000rpm, the anodic oxidation time is 1h, the electrode is ultrasonically cleaned with ethanol and water, annealed at 450°C for 2h, and cooled to room temperature to prepare TiO 2 Nanotube / Ti electrode; with large-area graphite as the anode, the obtained TiO 2 The nanotube / Ti ele...

Embodiment 2

[0058] The titanium sheet is subjected to sandblasting, ultrasonic treatment and chemical polishing in sequence; the ultrasonic process is: ultrasonic treatment in acetone and ethanol for 15 minutes; the chemical polishing process is: in HF / HNO 3 / H 2 Chemical polishing was carried out in a mixed solution of O for 1 min, where HF / HNO 3 / H 2 The volume ratio of O is 1:3:6;

[0059] The treated titanium sheet is used as the anode, and the large-area graphite is used as the cathode for constant voltage anodization. The electrolyte composition is 0.86g NH per 100mL of ethylene glycol solvent. 4 F, 1gH 2 O, the anodic oxidation voltage is 15V DC voltage, the temperature is room temperature, the stirring speed is 1000rpm, the anodic oxidation time is 1.5h, the electrode is ultrasonically cleaned with ethanol and water, annealed at 450°C for 2h, and cooled to room temperature to prepare TiO 2 Nanotube / Ti electrode; with large-area graphite as the anode, the obtained TiO 2 The na...

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Abstract

The invention discloses a titanium hydride nanotube-ruthenium titanium oxide coating titanium electrode preparation method. The preparation method comprises the following specific steps: (1) the sandblasting, the ultrasonic processing and the chemical polishing are performed on titanium sheets in sequence; (2) TiO2 nanotubes / Ti electrodes are prepared; (3) TiH2 nanotube / Ti electrodes are prepared; and (4) coating liquid is prepared, and is coated on the surfaces of the TiH2 nanotube / Ti electrodes prepared in the step (3) by adopting a brush coating method to finally obtain titanium hydride nanotube-ruthenium titanium oxide coating titanium electrodes. The prepared TiH2 nanotubes have the characteristics of ordered heights and large specific surface areas, so that the obtained TiO2.RuO2 / TiH2 nanotubes / Ti electrodes have large electrochemical activity areas; and better electrocatalyst activity is achieved compared with coating electrodes (TiO2.RuO2 / Ti electrodes) without the TiH2 nanotubes.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of coated titanium electrode materials, and in particular relates to a preparation method of titanium hydride nanotube-ruthenium titanium oxide coated titanium electrodes. Background technique [0002] Coated titanium electrode, also known as dimensionally stable anode (DSA), is a new type of high-efficiency and energy-saving electrode material developed in the late 1960s. Today, coated titanium electrodes have been widely used in chemical industry, environmental protection, water treatment, electroplating and other industries. Coated titanium electrodes can be classified according to the gas released from the anode in the electrochemical reaction. The one used for the precipitation of chlorine gas at the anode is called the chlorine evolution anode, such as the ruthenium-based coated titanium electrode; the one used for the precipitation of oxygen on the anode is called the oxygen evo...

Claims

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Application Information

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IPC IPC(8): C25B11/08C25B11/10C25D11/26C23C28/04
CPCC23C28/042C25D11/26C25B11/051C25B11/057C25B11/093
Inventor 周偎偎
Owner 西安博岳环保科技有限公司
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