Titanium electrode used for electrolyzing water and manufacturing method for titanium electrode

A technology for titanium electrode and water electrolysis, applied in electrodes, electrolysis process, electrolysis components, etc., can solve the problems of low conductivity, reduced electrolysis efficiency, and reduced hydrogen evolution activity of titanium electrode.

Inactive Publication Date: 2017-06-23
SHENZHEN HYDROGEN HEALTHY WORLD HEALTH TECH HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above prior art, the oxide coating usually has low conductivity, which reduces the hydrogen evolution activity of the titanium electrode, thus reducing the electrolysis efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] In the preparation method of the titanium electrode used for electrolyzing water, the titanium base material is placed in the electrolytic solution containing bromine-doped polylactic acid grafted polyphenylene vinylene for electrodeposition.

[0041] As mentioned above, electrodeposition is the occurrence of deposition by electrochemical means.

[0042] The above electrolytic solution may be a solution containing bromine-doped polylactic acid grafted polyphenylene vinylene as a solute, and water, dilute acid and an organic solvent miscible with water as a solvent.

[0043] Here, the content of bromine-doped polylactic acid grafted polyphenylene vinylene can be adjusted according to actual conditions.

[0044] Among the above-mentioned solvents for the electrolytic solution, the dilute acid includes non-oxidizing dilute acids, such as dilute sulfuric acid and dilute nitric acid.

[0045] Water-miscible organic solvents include methanol, ethanol, acetone, tetrahydrofura...

Embodiment 1

[0053] The first step is to dope the polylactic acid grafted polyphenylene vinylene and the bromine element accounting for 10% of the mass of the polylactic acid grafted polyphenylene vinylene in the above-mentioned manner to obtain bromine-doped polylactic acid grafted polyphenylene vinylene.

[0054]The second step is to configure the electrolyte. The electrolyte contains dilute sulfuric acid added to a mixed solvent of THF and water with a volume ratio of 1:1, so that the molar concentration of the dilute sulfuric acid is 0.2 mol / L to obtain a mixed solvent. Then add bromine-doped polylactic acid grafted polyphenylene vinylene to the mixed solvent, add appropriate siloxane coupling agent, and disperse by ultrasonic wave to obtain electrolyte solution.

[0055] The third step, it can be pretreated in a known way: (1) carefully polish the GCE electrode working surface (geometric area is 0.0707cm2) on 800# and 2000# metallographic sandpaper in turn, and then rinse the electrod...

Embodiment 2

[0058] The first step is to dope the polylactic acid grafted polyphenylene vinylene and the bromine element accounting for 20 wt% of the mass of the polylactic acid grafted polyphenylene vinylene in the above-mentioned manner to obtain bromine-doped polylactic acid grafted polyphenylene vinylene.

[0059] The second step is to configure the electrolyte. The electrolyte solution contains dilute sulfuric acid added to a mixed solvent of DMSO and water with a volume ratio of 1:5, so that the molar concentration of the dilute sulfuric acid is 0.6 mol / L to obtain a mixed solvent. Then add bromine-doped polylactic acid grafted polyphenylene vinylene to the mixed solvent, add appropriate siloxane coupling agent, and disperse by ultrasonic wave to obtain electrolyte solution.

[0060] The third step, it can be pretreated in a known way: (1) carefully polish the GCE electrode working surface (geometric area is 0.0707cm2) on 800# and 2000# metallographic sandpaper in turn, and then rins...

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Abstract

The invention discloses a titanium electrode used for electrolyzing water and a manufacturing method for the titanium electrode. The titanium electrode comprises a titanium base material and a bromine-doped polylactic acid grafted polyphenylacetylene coating which is electrodeposited on the surface of the titanium base material. According to the titanium electrode disclosed by the invention, the bromine-doped polylactic acid grafted polyphenylacetylene coating is arranged on the surface of the titanium base material. The bromine-doped polylactic acid grafted polyphenylacetylene is a conductive macromolecule with relatively high electric conductivity, and can remarkably improve current efficiency of the titanium electrode while used as the coating, so that relatively high hydrogen evolution activity is guaranteed, and therefore, relatively high electrolytic efficiency is reached.

Description

technical field [0001] The invention relates to the technical field of electrolyzed water electrodes, in particular to a titanium electrode used for electrolyzed water and a preparation method thereof. Background technique [0002] Electrolysis of water usually uses titanium electrodes. Coated titanium electrode, also known as DSA (Dimensionally Stable Anodes, DSA) electrode, is one of the most successful technological breakthroughs in the field of electrochemical research in recent years. Good removal effect. The anode is the place where the electrocatalytic reaction proceeds and active species are produced. Different anode materials will have a great impact on the type of catalytic reaction, the degradation efficiency of organic matter and the service life of the electrode. [0003] Chinese patent CN102268688A discloses a ruthenium-palladium-cobalt-coated titanium electrode containing a tin-antimony intermediate layer. The main surface of the titanium plate of the tita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B11/04C25D9/02C25D5/28C02F1/461
CPCC02F1/46109C02F2001/46133C25B1/04C25D9/02C25B11/057C25B11/095Y02E60/36
Inventor 李士刚陆旭东邱胜
Owner SHENZHEN HYDROGEN HEALTHY WORLD HEALTH TECH HLDG CO LTD
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