Product Overview
Platinized Titanium Plate Anodes combine the structural stability and corrosion resistance of Titanium Grade 1 or Grade 2 substrates with the exceptional electrocatalytic activity of a pure Platinum (Pt) coating. This dimensionally stable anode (DSA) configuration is engineered to sustain high current densities in aggressive acidic and alkaline electrolytes without geometric distortion.
Serving as a high-performance alternative to solid platinum or lead-based electrodes, these anodes lower operational cell voltage and minimize energy consumption. Direct manufacturing control enables full customization of plate dimensions, expanded meshes, perforated sheets, and terminal busbar configurations to meet precise electrolytic cell requirements.
Key Features
Dimensionally Stable Structure: Maintains strict geometric tolerances during continuous operation, preventing internal short circuits caused by electrode warping.
Low Oxygen Evolution Overpotential: Significantly reduces operating cell voltage, directly lowering electrical power consumption in industrial processes.
High Current Density Tolerance: Operates reliably under high Amperage conditions (>5000 A/m²) without premature coating delamination.
Metallurgical Coating Bond: Utilizes advanced thermal decomposition or high-precision electroplating to ensure robust atomic bonding between platinum and the titanium base.
Inherent Substrate Protection: Titanium Grade 1/2 substrate acts as a secondary barrier, preventing catastrophic failure even if micro-defects occur in the platinum layer over prolonged service.
Technical Specifications
|
Parameter |
Specification Details |
|
Substrate Material |
Titanium Grade 1 (ASTM B265), Titanium Grade 2 |
|
Coating Material |
Pure Platinum (Pt, purity ≥ 99.99%) |
|
Coating Thickness |
Standard: 1.5 μm to 10 μm (Customizable up to 20 μm) |
|
Max. Current Density |
Up to 10000 A/m² (Application-dependent) |
|
Operating Temperature |
< 60°C (Standard), up to 80°C (Optional formulation) |
|
pH Range |
1 to 14 |
|
Expected Service Life |
2 to 5+ years (Dependent on current density and electrolyte composition) |
Materials & Available Options
Substrate Grades
- Titanium Grade 1: Superior formability and higher chemical purity; recommended for standard electrochemical plating.
- Titanium Grade 2: Standard industrial strength; optimal for large-scale structural plate and mesh anodes.
Coating Methodologies
- Electroplated Platinum: Delivers uniform micro-coverage on complex geometries and deep-drawn structures.
- Thermally Decomposed Platinum: Creates a dense, crystalline oxide-ceramic composite structure with enhanced wear resistance.
- Geometric Configurations: Solid plates, expanded metal mesh, perforated plates, and custom rods/tubes with integrated titanium current distribution bars.
Applications
Industrial Wastewater Treatment: COD reduction, destruction of refractory organic pollutants, and electro-oxidation in advanced oxidation processes (AOP).
Water Disinfection: On-site generation of sodium hypochlorite for municipal drinking water, industrial cooling towers, and swimming pool sanitation.
Cathodic Protection (ICCP): Impressed current corrosion prevention for marine structures, offshore platforms, ship hulls, and buried pipelines.
Electroplating & Surface Finishing: Precious metal deposition (Gold, Silver, Rhodium) and hard chrome plating lines.
Hydrometallurgy & Recovery: Selective metal electrowinning and high-purity metal recovery from industrial leach solutions.
Customization Capabilities
In-house manufacturing supports complete build-to-print fabrication and engineering modifications:
Dimensions & Formats: Plate sizes up to 1500 mm × 1000 mm; custom expanded mesh open-area percentages for optimized electrolyte flow and gas release.
Busbar Integration: Laser-welded or TIG-welded titanium bolts, threaded studs, and extension tabs designed to withstand high current loads without contact resistance.
Selective Plating: Targeted platinum deposition on active working faces to optimize manufacturing costs without sacrificing operational performance.
Quality Control & Manufacturing Standards
Substrate Pretreatment: Controlled grit blasting followed by proprietary chemical etching and dual-acid pickling to eliminate surface oxides and maximize mechanical anchoring sites.
Coating Verification: X-ray Fluorescence (XRF) coating thickness testing performed per ASTM guidelines on every production lot.
Adhesion & Thermal Shock Testing: Rigorous thermal stress testing (quenching from 300°C to room temperature) to verify coating-to-substrate bond integrity.
Dimensional Inspection: 100% verification of length, thickness, flatness, and hole position using calibrated digital instruments and CMM equipment.
Packaging & Logistics
Surface Protection: Individual wrapping in anti-static, non-abrasive polyethylene film to prevent scratching of the micro-smooth platinum surface.
Shock Absorption: Secured in high-density EPE foam blocks or custom-molded corrugated inserts within heavy-duty containers to eliminate transit vibration damage.
Export Compliance: Fumigation-free export-grade plywood crates or reinforced double-wall cartons.
Shipping Options: Air express delivery for urgent prototype batches; sea freight palletization for volume production runs.
Frequently Asked Questions
Q: How do I select the appropriate platinum coating thickness for my process?
A: Coating longevity is directly proportional to layer thickness and operating current density. For medium-duty water treatment, 2.5 μm to 5.0 μm is standard. High-amperage industrial electrowinning or aggressive organic oxidation requires 7.5 μm to 10 μm or greater. Provide your operating amperage and target lifespan for a precise engineering calculation.
Q: What are the advantages of using a titanium expanded mesh anode instead of a solid plate?
A: Expanded mesh designs drastically increase the active surface area per unit of geometric footprint and allow high-speed electrolyte flow-through. This prevents gas bubble accumulation and lowers localized electrical resistance, making mesh structures ideal for high-flow wastewater treatment cells.
Q: Can spent platinized titanium anodes be recoated at the end of their lifecycle?
A: Yes. Provided the titanium base substrate remains structurally uncorroded and mechanically sound, the spent anode can be chemically stripped, re-conditioned, and re-coated with a fresh layer of platinum, significantly lowering long-term operating costs.
Q: What are the primary causes of premature anode failure?
A: Premature failure is typically driven by operation exceeding the rated maximum current density, contamination of the electrolyte with high concentrations of fluoride ions or organic acids that breach titanium passivation layers, or mechanical impacts during installation.
Q: What quality documentation is included with each shipment?
A: Every delivery is accompanied by a comprehensive Certificate of Analysis (CoA) containing raw material Mill Test Reports (MTR), XRF platinum thickness test results, and final dimensional inspection logs.
Q: What is the standard production lead time for custom plate specifications?
A: Prototype orders typically require 7 to 10 working days. Volume production runs are fulfilled within 15 to 25 working days, depending on order size, plate geometry, and customized busbar welding requirements.
Request a Quote (RFQ)
To initiate a formal technical evaluation and quotation, please submit the following parameters to our engineering team:
Application & Industry: (E.g., Wastewater COD destruction, sodium hypochlorite generation, cathodic protection)
Plate Dimensions & Form: (Solid plate or mesh, Length × Width × Thickness in mm)
Substrate Grade: (Titanium Grade 1 or Grade 2)
Required Platinum Thickness: (μm)
Operating Conditions: (Current density A/m², electrolyte composition, temperature, and desired service life)
Order Quantity: (Prototype testing batch or regular volume production)
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