Iridium-Tin-Titanium (Ir-Sn-Ti) Anode
- IrO₂ and SnO₂ Mixed Metal Oxide (MMO) Anode
- Enhanced Corrosion Resistance
- High Catalytic Activity
- Stability and Durability
- High Current Density Capacity
- Environmental Compatibility
Iridium-Tin-Titanium (Ir-Sn-Ti) Anode
Iridium-Tin-Titanium (Ir-Sn-Ti) Anode, composed of iridium oxide (IrO₂), tin oxide (SnO₂), and a titanium (Ti) substrate, also known as a Mixed Metal Oxide (MMO) anode, is an advanced electrode widely used in electrochemical applications such as water treatment, electroplating, and cathodic protection. These anodes are constructed by coating a titanium substrate with a mixture of iridium oxide (IrO₂) and tin oxide (SnO₂), enhancing their electrochemical performance and durability.
Features
- Iridium-Tin-Titanium (Ir-Sn-Ti) Mixed Metal Oxide (MMO) Anodes with IrO₂ + SnO₂ coating on Grade 1 or Grade 2 Titanium substrate, manufactured for high-performance electrochemical processes with emphasis on oxygen evolution reaction (OER) and enhanced stability.
- Exceptional corrosion resistance provided by the synergistic IrO₂-SnO₂ coating and titanium oxide layer, enabling stable operation in aggressive acidic, alkaline, and chloride-rich environments.
- High electrocatalytic activity driven by iridium oxide for efficient oxygen evolution, with tin oxide improving coating adhesion, grain refinement, and long-term durability.
- Comprehensive range of anode configurations: Plate, Mesh, Rod, Tube, Wire, and custom shapes to optimize surface area and current distribution.
- High current density capability of 500–800 A/m², coating thickness 6–12 µm, operating voltage typically ≤24 V, and low polarization resistance (<30 mV/10 mA/cm² at 1 A/cm²).
- Wide operating range: pH 1–14, temperature up to 85°C, fluoride content <50 mg/L, with mechanical robustness and dimensional stability for reliable performance.
- Extended service life demonstrated by accelerated testing (>1500 minutes at 1 A/cm² in 0.5 N H₂SO₄), with reusable titanium substrate after coating refresh.
- Cost-effective, low-maintenance, and environmentally compatible design with minimal byproduct release and full compatibility with titanium equipment for complete electrochemical systems.
Technical Specifications
| Property | Specification |
| Base Material | Titanium (Grade 1 or Grade 2) |
| Coating Composition | Iridium Oxide (IrO₂) and Tin Oxide (SnO₂) |
| Coating Thickness | Typically 6–12 µm |
| Coating Method | Thermal decomposition, sol-gel, or arc plasma deposition |
| Operating Voltage | Up to 24 V |
| Current Density | 500–800 A/m² |
| pH Range | 1–14 |
| Fluoride Content in Electrolyte | Less than 50 mg/L |
| Working Temperature | Below 85°C |
| Polarization Resistance | Less than 30 mV/10 mA/cm² at 1 A/cm² current density |
| Service Life | Over 1500 minutes under 1 A/cm² current density in 0.5 N H₂SO₄ |
Packing & Shipment
To ensure product safety during storage, handling, and international transportation, iridium-tin-titanium (Ir-Sn-Ti) anodes are packed with corrosion protection and coating protection measures according to anode type, size, quantity, and shipping mode.
| Item | Packing / Shipment Method |
| Internal Protection | Anodes are cleaned, dried, and MMO coating (IrO₂ + SnO₂) is fully inspected before packing |
| Coating Protection | Coating surfaces are covered with soft protective film or interleaving sheets to prevent scratches and abrasion |
| Surface Protection | Critical edges and titanium base are protected with foam or plastic covers |
| Individual Packing | Small anodes or sets are individually wrapped and packed in foam-lined cartons or sturdy plywood boxes |
| Bulk / Large Anode Packing | Larger plates, meshes or custom shapes are stacked with separators, secured on wooden pallets or reinforced export crates |
| Shock Protection | High-density foam padding, internal bracing, and strapping used to prevent movement during transit |
| Moisture Control | Desiccant bags placed inside the package |
| Marking | Package labels include product name, model, coating type, size, quantity, weight, and shipping marks |
| Shipping Mode | By sea (FCL / LCL), air freight, or multimodal transport depending on order quantity and delivery requirements |
| Documents | Packing list, commercial invoice, certificate of origin, material test reports, and inspection documents provided |
Applications
- Water electrolysis for oxygen evolution in acidic or neutral electrolytes, supporting green hydrogen production and related processes.
- Electrochlorination for efficient hypochlorite generation in water disinfection, bleaching, and swimming pool sanitation systems.
- Wastewater treatment and electrochemical advanced oxidation for organic pollutant degradation, COD removal, and disinfection.
- Metal electrowinning and electrorefining for extraction and purification of metals from solutions in mining and metallurgical operations.
- Organic electrosynthesis for selective oxidation of compounds in chemical production requiring high catalytic efficiency.
- Electrochemical sensors for detection and quantification of analytes where high selectivity and stability are essential.
- Cathodic protection systems in marine, offshore, and industrial environments needing durable, high-performance anodes.
- Custom anode assemblies and specialized configurations for high-performance electrochemical systems after full qualification and testing.
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