What is the purpose of palladium plating?
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This post was last edited by sunjl1981 on 2013-1-6 20:20. I would like to ask the experts: What is the purpose of coating the frames of the electrode plates in ion-exchange membrane electrolyzers in chlor-alkali production? Principle? Thank you! ， ， -
Protecting the frame – it’s hard to explain exactly.
To prevent crevice corrosion on titanium sealing surfaces, the principle seems to involve high-temperature sintering.
It prevents anode corrosion, but the underlying principle is still under investigation
Those who wish to work in the chlor-alkali industry need to look up relevant information; there are many such questions on this forum. As mentioned above, the main purpose is to protect titanium plates from intergranular corrosion. Since palladium has a lower electrical potential than titanium, and it also possesses excellent corrosion resistance, it provides effective protection