Pt-Ir Coated Titanium Anode For Water Electrolysis
Base material:Gr1/TA1
Platinum series coating: Pure Pt AND Pt-Ir
Coating technique: Electroplate OR brush
Coating thickness: 0.5μ—20μ
Anode size: Mesh, plate, or custom as your need
Current density:100—4000A/m2
Product Introduction
Pt–Ir coated titanium anodes are widely used in the water electrolysis and water treatment industry due to their excellent balance of performance and cost-effectiveness.
In water electrolysis systems-especially in the production of acidic and alkaline ionized water-a variety of strong oxidizing species are generated, such as:
O₃ (ozone)
H₂O₂ (hydrogen peroxide)
HClO (hypochlorous acid)
Additionally, frequent polarity reversal (commutation) in operation places higher demands on electrode stability. Therefore, functional Pt–Ir coated titanium anodes are required to ensure long-term reliable performance.
Importance of Titanium Anodes
Titanium anodes are core components in electrolysis equipment. Their quality directly affects:
System efficiency
Water quality
Equipment lifespan
Proper selection of titanium anodes must be based on specific operating conditions.
Key Performance Requirements
For water treatment applications, Pt–Ir coated titanium anodes should meet the following criteria:
Excellent electrical conductivity
Superior corrosion resistance (especially in oxidizing environments)
High mechanical strength and good machinability
Long service life under continuous electrolysis
Outstanding electrocatalytic activity
Product Specifications
Parameter | Description |
Base Material | Titanium Gr1 / Gr2 |
Coating Type | Pure Pt / Pt–Ir |
Coating Method | Electroplating / Brush plating |
Coating Thickness | 0.5 μm – 20 μm |
Anode Form | Mesh, plate, or customized |
Current Density | 300 – 500 A/m² |
Technical Characteristics
Platinum-based coating provides excellent conductivity and chemical stability
Iridium addition significantly enhances:
Electrocatalytic activity
Resistance to oxidation
Service life
Suitable for highly oxidizing environments and frequent polarity switching systems
Titanium substrate is dimensionally stable and can be reused after recoating, reducing lifecycle cost
Performance Optimization
To further improve anode performance:
Binary or multi-metal oxide systems (Ir-based) can be introduced
Multi-layer coating structures enhance durability and adhesion
Optimized coating composition improves:
Current efficiency
Stability under harsh electrochemical conditions
Advantages of Pt–Ir Titanium Anodes
High electrocatalytic efficiency
Excellent resistance to strong oxidants
Long operational lifespan
Stable performance under polarity reversal
Lower overall cost due to substrate reusability
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