How to choose electrolytic cell coating

How to choose electrolytic cell coating

 

Baoji Ruicheng Titanium Metal Co., Ltd.Electrolyzer cell with two coatings, platinum and ruthenium-iridium,Choose different coatings according to different use environment.The application of platinum coating and ruthenium-iridium coating in electrolytic cells has the following differences:

 

1. What are the advantages of platinum-coated electrolytic cell and ruthenium-iridium coated electrolytic cell?

 

Platinum-coated electrolytic cell advantages：

• Good catalytic activity: Platinum has high catalytic efficiency for hydrogen analysis reaction, which can reduce the overpotential of hydrogen analysis and promote the production of hydrogen during the electrolysis of water. It can be used to prepare high-purity hydrogen.If drinking water needs to add an appropriate amount of hydrogen by electrolysis to improve taste or possible health effects (there is currently some controversy about the health effects of hydrogen-rich water, but there are related explorations in some research and applications), platinum-coated electrolytic cells have certain advantages.
• High stability and corrosion resistance: Platinum has high chemical stability, is not easy to be corroded in the electrolytic treatment environment of drinking water, can maintain good structural and performance stability, long service life of the electrode, reducing the frequency of equipment maintenance and replacement.

 

Ruthenium-iridium coated electrolytic cell advantages：

• Efficient oxygen analysis performance: Ruthenium-iridium coating has good catalytic activity for oxygen analysis reaction during electrolysis. In some drinking water treatment processes, for example, when oxidizing substances need to be produced by electrolysis for disinfection, sterilization or removal of certain organic pollutants, ruthenium-iridium coating electrolytic cells can play a good role.For example, it can be used for electrolysis to prepare acidic disinfectant water and disinfect drinking water.
• The cost is relatively low: compared with platinum, the prices of ruthenium and iridium are relatively low, making the cost of ruthenium-iridium coated electrolytic cells relatively low and more suitable for large-scale applications in the field of drinking water treatment.

 

2. What are the disadvantages of platinum-coated electrolytic cell and ruthenium-iridium coated electrolytic cell?

 

Platinum-coated electrolytic cell disadvantages：

Platinum is a rare precious metal and is expensive, which makes the manufacturing cost of platinum-coated electrolytic cells higher, and the cost pressure for large-scale application in drinking water treatment is greater.

 

Ruthenium-iridium coated electrolytic cell advantages：

During the long-term use of ruthenium-iridium coating, the wear of the coating and the loss of active ingredients may occur, which will affect the service life and performance stability of the electrode.However, by optimizing the preparation process of the coating and adding stabilizers, its stability can be improved to a certain extent.

 

According to the customer's use environment and requirements, it is essential to choose the right coating.If you have any questions on the choice of coating, please feel free to contact us, we have professional technicians to answer questions for you.