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Ruthenium-Iridium-Titanium Anodes

789
51431
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照片 189
IMG_8681
照片 180
Product Description

Product Classification

1 Insoluble titanium anodes are classified as oxygen precipitating anodes and chlorine precipitating anodes.

2 Ruthenium metal oxide coated titanium anodes are chlorinated anodes.

Mainly used in the production of sodium hypochlorite and seawater electrolysis (antifouling) field.

3 Platinized titanium anodes and iridium metal oxide coated titanium anodes (iridium MMO coated titanium anodes) are oxygen precipitation anodes.

Characteristics of iridium MMO-coated titanium anodes

  • The active portion allows current to pass through the coated surface of the titanium anode into the electrolyte, while the titanium surface remains inert without the transitory layer. In case of mechanical damage of the coating on a small area and direct contact of the titanium substrate with the electrolyte (acidic), the titanium anode can continue to operate normally because the titanium surface is protected by the formation of a dense adhesive oxide film.
  • It can be operated under high density conditions (current density <11500 A/m2) and has a long service life due to the low consumption of the coated electrocatalyst.
  • Oxygen and chloride ions are generated in the anodic reaction on the iridium MMO-coated surface, and the chloride ions serve to maintain a low pH value.
  • The iridium MMO coated titanium anode is an electrode with a low oxygen overpotential, which saves energy when the oxygen overpotential is low and the tank pressure is low....

Differences between metal oxide coated titanium anodes and platinized titanium anodes

  • Platinized anodes are still predominantly used in many precious metal plating operations, and metal oxide coatings are well known for their much longer service life and lower cost. It has been shown to last 50% to 100% longer than platinized anodes.
  • Low bath voltage, another advantage of metal oxide coatings, reduces the influence of organic additives, saving additives and energy.
  • Metal oxide coated titanium anodes can be used in almost any field where platinum plated titanium anodes have been used in the past, and there is no need to make any special adjustments to the method of use. However, different electrolytes and organic compositions may have different effects on the coating of the anode during the plating process, so it is best for the customer to provide us with the most detailed electrolyte composition and plating requirements, so that we can design the most demanding coating composition to achieve the best results.

 

Anodes and coatings

Fields of application

Application Notes

Ruthenium Metal Oxide Coated Titanium Anodes

Sodium hypochlorite production; seawater electrolysis

Plate/Retail:Sodium Hypochlorite Electrolyzer Anodes

Iridium Metal Oxide Coated Titanium Anodes

Use in highly acidic environments, e.g.

 

 

Electroplating

Plate:Decorative trivalent chromium plating anode

 

PCB plating

Mesh:Decorative trivalent chromium plating anode

 

 

Plate:Anode for electrolytic copper foil production

 

 

Mesh/Filament:Wheel Copper/Nickel Plating Low Current Density Zone Auxiliary Anodes

 

Anodization of Aluminum

PS plate manufacturing

 

Metal Reduction

Plate:Tungsten/Nickel/Cobalt Electrolytic Deposition Process Anode

 

Electrosynthesis and Ion Exchange Membrane Methods

 

 

Precious metal plating

Mesh:PCB gold/palladium plating process

 

Copper plating (with reverse pulse)

Specialized Plate:PCB reverse pulse copper plating process

 

Tin plating

Plate:High-speed tin/zinc plating line for thin plates in steel mills

 

Cathodic protection, under high current density conditions

Plate:Ship hull forced current cathodic protection system for shipbuilding industry

Platinized Titanium Anodes

Cathodic protection, at high current densities

Plate:Ship hull forced current cathodic protection system for shipbuilding industry

 

Electrosynthesis

 

 

Precious metal plating

Mesh: PCB Gold Plating

 

 

     Palladium Plating Process

 

 

     Continuous gold plating of connectors/terminals

 

Electroplating

Reticulation: Decorative Hexavalent Chromium Hard Chromium Plating

 

 

Piston Ring Hexavalent Chromium Plating

 

 

Hub Copper/Nickel Plating Low Current Density Zone Auxiliary Anode

 

 

     High Speed Sheet Tin Plating Line for Steel Mills

 

Electrodialysis (with electrodes reversed)

      Applications in TDI systems

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