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An electrolytic anode plate and its preparation method and application

A technology for anode plates and substrates, which is applied in the fields of material chemistry and environmental electrochemistry, can solve the problems of many electrolytic anode plate coatings, low electrochemical activity of coatings, and poor coating coverage, etc., and achieves low preparation costs, Excellent catalytic activity, beneficial to decomposition effect

Active Publication Date: 2019-08-09
SHANGHAI TECHASE ENVIRONMENT PROTECTION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the technical problems of many times of coating on the electrolytic anode plate, poor coating coverage, uneven coating, high cost due to large amount of precious metal, and low electrochemical activity of the coating

Method used

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  • An electrolytic anode plate and its preparation method and application
  • An electrolytic anode plate and its preparation method and application
  • An electrolytic anode plate and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of IrO suitable for electrolytic dehydration, electrolyzed water and power-to-gas devices 2 -The preparation method of the Sn / Ti anode plate, the middle layer of the anode plate is doped with cheap metal tin, the electrode has excellent catalytic activity and long service life, and the cost is reduced.

[0043] By adopting the method of direct electrochemical deposition, after coating the intermediate layer on the pretreated titanium plate, the electrode is obtained by direct electroplating. Described method specifically comprises the steps:

[0044] (1) The metal titanium plate with a purity greater than 99.0% is saturated with K 2 CO 3 The solution was soaked for 10 minutes, polished with metallographic sandpaper, soaked and etched in 10wt% boiled oxalic acid solution for 2 hours.

[0045] (2) Prepare H 2 IrCl 6 and SnCl 4 The mixed intermediate layer coating solution with a ratio of 1:1 is dissolved and mixed by ultrasonic vibration, and left to stand fo...

Embodiment 2

[0060] A kind of IrO suitable for electrolytic dehydration, electrolyzed water and power-to-gas devices 2 - The Sn / Ti electrode is prepared by electrodeposition, the intermediate layer is doped with cheap metals, and while the cost is reduced, the electrode has both excellent catalytic activity and long service life.

[0061] By adopting the method of direct electrochemical deposition, after coating the intermediate layer on the pretreated titanium plate, the electrode is obtained by direct electroplating. Described method specifically comprises the steps:

[0062] (1) The metal titanium plate with a purity greater than 99.0% is saturated with K 2 CO 3 The solution was soaked for 10 minutes, polished with metallographic sandpaper, soaked and etched in 10wt% boiled oxalic acid solution for 2 hours.

[0063] (2) Prepare H 2 IrCl 6 and SnCl 4 The mixed intermediate layer coating solution with a ratio of 1:1 is dissolved and mixed by ultrasonic vibration, and left to stand f...

Embodiment 3

[0078] A kind of IrO suitable for electrolytic dehydration, electrolyzed water and power-to-gas devices 2 - The Sn / Ti electrode is prepared by electrodeposition, the intermediate layer is doped with cheap metals, and while the cost is reduced, the electrode has both excellent catalytic activity and long service life.

[0079] By adopting the method of direct electrochemical deposition, after coating the intermediate layer on the pretreated titanium plate, the electrode is obtained by direct electroplating. Described method specifically comprises the steps:

[0080] (1) The metal titanium plate with a purity greater than 99.0% is saturated with K 2 CO 3 The solution was soaked for 10 minutes, polished with metallographic sandpaper, soaked and etched in 10wt% boiled oxalic acid solution for 2 hours.

[0081] (2) Prepare H 2 IrCl 6 and SnCl 4 The mixed intermediate layer coating solution with a ratio of 1:2 is dissolved and mixed by ultrasonic vibration, and left to stand f...

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Abstract

The invention discloses an electrolysis anode plate and a preparation method and application thereof. The preparation method comprises the steps of uniformly coating a substrate with an intermediate layer coating solution; and then, uniformly electroplating an intermediate layer of the substrate with an electroplating solution, and carrying out drying to obtain the electrolysis anode plate. The surface electrochemical activity surface area of a plating of the prepared electrolysis anode plate is larger, so that the electrolysis anode plate has more chemical reactivity sites during the utilization process, has extremely high electrochemical reactivity, facilitates decomposition of catalytic water, and is applied to the aspects of electrolysis dehydration, ectrolysed water and electrotransformation gas.

Description

technical field [0001] The invention relates to the fields of material chemistry and environmental electrochemistry, in particular to an electrolytic anode plate and its preparation method and application. Background technique [0002] Titanium-based metal oxide coated electrode (DSA) has shown excellent anode performance since its inception, and has been widely used in the electrolysis industry soon. Titanium has a high melting point, light weight and high strength, and plays an important role in aerospace and chemical industries. Traditional lead-based alloy electrodes and graphite electrodes have high oxygen evolution potential and high energy consumption. Studies have shown that some metal oxides, especially transition metal oxides, have high electrocatalytic activity and low oxygen evolution potential. Compared with the traditional lead-based alloy electrode and graphite electrode, the titanium-based electrode coated with metal oxide has the advantages of stable anode...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/10C25B11/06C25B1/04C25D9/04
CPCC25B1/04C25D9/04C25B11/091Y02E60/36
Inventor 吴旭张艳琳刘道广曹曼曼孙钢范韦聚才古月圆吕航王梨
Owner SHANGHAI TECHASE ENVIRONMENT PROTECTION
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