Introduction Of Tantalum-iridium Coated Titanium Plate Anode
Tantalum-iridium coated titanium plate, the anode is based on titanium mesh, and β-PbO2 is electroplated on it. It is characterized by super high oxygen and can be used in acidic solutions, especially in some organic electrolysis. The anodizing reaction requires high potential. But to minimize the side reaction of oxygen evolution, PbO2 electrode is a better material. Such as perchlorate electrolysis, sewage treatment oxidizes organic matter, such as phenol-containing sewage. It can also be used as a general oxygen emission electrode. Although its oxygen is super high, its price is much cheaper than Ta-Ir electrode, so it is used in organic electrolysis, electroplating, sewage treatment and many other places.
Tantalum-iridium coated titanium plate is a kind of oxygen evolution resistant anode, mainly used for oxygen evolution reaction, especially suitable for acidic electrolyte, such as a certain concentration of sulfuric acid electrolyte, which has ultra-low oxygen, can be used for oxygen evolution electrolysis, and is also resistant to chlorine corrosion It can be used for electrolysis that releases oxygen and chlorine, such as seawater electrolysis. It is a relatively good electrode material for acidic media to release oxygen, and there are limited electrode materials available in such an environment. The coated electrode has been used in organic electrolysis, such as cysteine, glyoxylic acid, succinic acid, etc. It can be used for indirect oxidation of Cr3+﹢→Cr6+ electrolysis in organic electrolysis, and sewage treatment is used to oxidize organic and toxic substances in water. Such as the conversion of CN–. It can also be used as auxiliary electrode in electroplating industry, such as auxiliary anode for Cr plating, auxiliary anode for electrolytic copper, auxiliary anode for electrolytic zinc, auxiliary anode for cathodic protection, etc.
Ruthenium-iridium-titanium ternary coating anode
The coated anode is used in electrolytes with high hydroxide radicals, which is resistant to oxygen corrosion and is suitable for ion-exchange membrane electrolysis. Coating index:
1. The discharge potential is 1.18 volts (S.C.E) at a current density of 4000A/m2.
2. enhanced life (coating weight loss method) 1.02mv/4 hours. cm2, the service life is guaranteed for more than 5 years, and it has been used in industrial large electric tanks.
Ru-Ir-Sn-Ti (Ru-Ir-Sn-Ti) quaternary coating electrode.
1. The chlorine evolution potential is low, and the overpotential is small. The chlorine discharge potential is not more than 1.12V and the overpotential is less than 20mv at a current density of 2000A/m2.
2.The polarizability is less than 30mv/10 unit current density.
3. Longer lifespan of 0.5N H2SO4, 1A/cm2 current density, lifespan greater than 1500 minutes.
The above three indicators are better than the industry regulations (industry indicators are: potential 1.13 volts, polarization rate 40mv/10 unit current density, strengthened life is greater than 1000 minutes). The coating has been widely used in the chlor-alkali industry, and the actual service life can reach 8 years.
