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Working electrode with multiple electrodes, combined parallel test system and use method of combined parallel test system

A working electrode and parallel testing technology, applied in the field of electrolysis of water, can solve the problems of difficult testing conditions, large differences in the characteristics of the electrode body, and long time-consuming repeated testing, and achieve the effect of high comparative value and simple equipment.

Pending Publication Date: 2021-07-09
HUANENG CLEAN ENERGY RES INST +9
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a working electrode with multiple electrodes, a combined parallel testing system and its use method, which solves the problems of difficult repetition of test conditions, large differences in electrode body characteristics, and long time-consuming repeated tests during the performance test of a single electrode. question

Method used

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  • Working electrode with multiple electrodes, combined parallel test system and use method of combined parallel test system
  • Working electrode with multiple electrodes, combined parallel test system and use method of combined parallel test system
  • Working electrode with multiple electrodes, combined parallel test system and use method of combined parallel test system

Examples

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Effect test

Embodiment 1

[0048] There are 5 rows and 5 rows of penetrating holes on the perforated plate with a length and width of 20 cm. The thickness of the perforated plate is 1 cm. The material of the perforated plate is nickel metal. The inner diameter of the perforated holes on the plate is 3 cm, and the inner wall is threaded , with terminal 3 on one side of the orifice plate. The penetration holes on the column orifice plate are marked as the first row 1-1~1-5, the second row 2-1~2-5, the third row 3-1~3-5, the fourth row 4-1~ 4-5, the fifth row 5-1 to 5-5.

[0049] Sheet electrode 2 is 25 nickel disc electrodes, and the discs are all taken from the same nickel plate. The material and thickness of the nickel plate are consistent with those of the perforated plate. There are threads that match the threads on the orifice plate, one side of the disc is covered with an electrocatalyst layer, and the other side has a groove that can be inserted with a screwdriver, and the disc is screwed into the...

Embodiment 2

[0059] There are 5 rows and 5 rows of penetrating hole arrays on the column orifice plate with a length and width of 15 cm. The column orifice plate is 0.8 cm thick. The material of the column orifice plate is stainless steel. The inner diameter of the penetrating holes on the plate is 2 cm. There is a connection terminal 3 on one side of the column hole plate. The penetration holes on the column orifice plate are marked as the first row 1-1~1-5, the second row 2-1~2-5, the third row 3-1~3-5, the fourth row 4-1~ 4-5, the fifth row 5-1 to 5-5.

[0060] The sheet electrode 2 is 25 stainless steel disc electrodes, the discs are all taken from the same stainless steel plate, the material and thickness of the stainless steel plate are consistent with the column orifice plate, the outer diameter of the discs is 2cm, and the surface characteristics are consistent. There are threads to match the orifice plate. One side of the disc is covered with an electrocatalyst layer, and the oth...

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Abstract

The invention belongs to the technical field of water electrolysis, and discloses a working electrode with multiple electrodes, the working electrode comprises a conductor and a plurality of same sheet electrodes, the conductor is provided with a plurality of through holes, and the sheet electrodes are installed in the through holes; and one surface of the sheet electrode is coated with an electrocatalyst layer. The invention also discloses a combined parallel test system comprising the working electrode, the working electrode, the reference electrode and the counter electrode are arranged in a constant-temperature electrolytic bath, and one surface, coated with the electrocatalyst layer, of the sheet electrode is arranged opposite to the counter electrode; the electrochemical workstation is respectively connected with wiring terminals of the working electrode, the counter electrode and the reference electrode; the surface change condition of each sheet electrode on the working electrode is shot by using a camera, the reaction characteristics of a plurality of electrodes can be simultaneously measured on the same conductive body in the same test environment, one-time measurement of a large number of different electrode properties is realized, and by designing the parameter difference of the catalyst layer on each electrode, batch screening of various electrochemical catalysts is realized.

Description

technical field [0001] The invention belongs to the technical field of electrolyzed water, and in particular relates to a working electrode with multiple electrodes, a combined parallel testing system and a use method thereof. Background technique [0002] Water electrolysis technology is currently divided into three categories: alkaline water electrolysis, proton exchange membrane electrolysis and solid oxide electrolyte electrolysis of water to produce hydrogen. The cost of the latter two technical devices is relatively high, and they are not widely used at present. Considering the economy, the alkaline water electrolysis device is more suitable for large-scale application. Commonly used alkaline water electrolysis usually uses high-concentration potassium hydroxide aqueous solution (20wt%-30wt%) with high conductivity as the electrolyte, and the electrolysis is carried out at 70-85°C. [0003] At present, one of the main challenges for alkaline electrolysis hydrogen pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26G01N27/30G01N21/84
CPCG01N21/84G01N27/26G01N27/30
Inventor 王金意张畅张欢任志博王鹏杰徐显明
Owner HUANENG CLEAN ENERGY RES INST
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