AN1220 Anode manufactured from platinum-plated titanium

Platinated Titanium Anode Description

The platinated titanium anode consists of a titanium anode that is coated with platinum or platinum metal oxides. These anodes serve as inert, non‐consumable electrodes and are not soluble in the electrolyte under electrolysis conditions.

Platinum is chosen as an anode material because of its high electrical conductivity and low consumption. However, given that it is a noble metal, a cost‐efficient approach is frequently adopted. A thin platinum layer is galvanised onto a highly corrosion‐resistant substrate. Titanium is commonly used as the anode substrate given that it forms an insulating oxide layer under anodic conditions.

Specifications for Platinated Titanium Anodes

Substrate: Titanium wire/rod, titanium mesh
Coating: Pure platinum
Platinum thickness: <10 µm
Permissible operating voltage: ≤12V
Mesh type: Expand Mesh

Applications of Platinated Titanium Anodes

Platinated titanium anodes have a broad scope of applications, which makes them applicable in various sectors and processes. Some primary applications of platinated titanium anodes include:

• Electroplating: Platinated titanium anodes are frequently used in plating processes for depositing metals onto a substrate. They deliver reliable conductivity and stability, thereby ensuring deposition results that meet defined tolerances.
• Cathodic protection: Platinated titanium anodes are employed in cathodic protection systems to prevent the corrosion of metal constructions such as pipelines, storage tanks and reinforced concrete structures. They function as inert anodes by releasing electrons, which reduces the likelihood of oxidation.
• Electrolysis: Platinated titanium anodes are used in several electrolytic processes. For instance, they are used in the production of chlorine and sodium hydroxide in the chloralkali industry and in electrolytic metal extraction.
• Water treatment: These anodes are applied in water treatment to oxidise contaminants and disinfect water. They help remove impurities and pathogens, thereby contributing to water that meets regulatory standards.
• Electrodialysis: Platinated titanium anodes are utilised in electrodialysis processes, whereby ions are selectively removed from a solution in the presence of an electrical field.
• Electrochemical synthesis: In both organic and inorganic chemical synthesis, platinated titanium anodes facilitate electrochemical reactions that produce specified compounds.
• Electrolytic extraction: Platinated titanium anodes are applied in the extraction of metals from ores by electrolysis.
• Research and laboratory: Platinated titanium anodes are used in various research and laboratory applications, including the development of new electrochemical processes and experimental investigations.

Advantages of the Platinated Titanium Anode

- Maintains current efficiency under defined conditions
- Exhibits high corrosion resistance with an extended service life
- Retains operating voltage within specified limits
- Possesses compact dimensions and a low weight
- Features a recoat-able titanium substrate for repeated usage