What Is Titanium anode for seawater electrolysis and How to Choose the Right One for Your Industry?
Titanium anode for seawater electrolysis is a high-performance insoluble electrode used in electrochemical systems that convert seawater into valuable products such as chlorine, hydrogen, sodium hypochlorite, and other oxidizing agents. These anodes are manufactured from corrosion-resistant titanium substrates coated with advanced catalytic layers including mixed metal oxide (MMO), Ru-Ir, or platinum coatings, ensuring stable operation in highly aggressive chloride-rich seawater environments.
In seawater electrolysis systems, titanium anodes serve as the core current-conducting component, enabling efficient chlorine evolution reaction (CER) and oxygen evolution reaction (OER). Compared with traditional graphite or lead-based electrodes, titanium anodes provide significantly higher current efficiency, longer service life, lower energy consumption, and superior environmental performance.
Selecting the right titanium anode depends on seawater salinity, chloride concentration, operating temperature, current density, and system design (on-site hypochlorite generation, desalination, or industrial chlorine production). Proper selection ensures stable electrochemical performance, reduced scaling, and long-term operational efficiency.
HY Ti-Ni Import & Export delivers advanced titanium anode solutions for global seawater electrolysis applications.
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Superior Corrosion Resistance、Ultra-Long Service Life、High Electrocatalytic Activity & Efficiency、Eco-Friendly、Low Maintenance





Customization Available (Size, Material, Coating, Shape, Lifespan & Installation)

Titanium anode for seawater electrolysis can be fully customized according to industrial requirements:
HY Ti-Ni Import & Export provides full customization for titanium anode for seawater electrolysis:
Each anode is engineered for high efficiency and stable chlorine production.
At Hengyi Ti-Ni Import Export, we specialize in titanium-based electrochemical materials with strong engineering capability in anode system design.
HY Ti-Ni Import & Export is a professional manufacturer of titanium anode for seawater electrolysis with strong expertise in chlorine production and marine electrochemical systems.
Located in Baoji, China, we rely on advanced titanium processing and MMO coating technologies to ensure high corrosion resistance and stable electrochemical performance in chloride-rich environments.
We offer OEM/ODM customization, fast delivery, and global supply capability. Our engineering team supports seawater electrolysis plants, on-site hypochlorite generation systems, and industrial chlor-alkali applications.
When selecting a titanium anode for seawater electrolysis, it is essential to evaluate seawater chloride concentration, system type, and required chlorine production capacity. These factors directly influence coating selection and electrode design.
For most seawater electrolysis applications, MMO or Ru-Ir coated titanium anodes are recommended due to their excellent catalytic activity and resistance to chlorine corrosion. Platinum-coated anodes are used in high-precision or high-purity systems.
Customers should also consider current density, electrode spacing, flow rate, and power supply capacity. Proper system matching ensures efficient chlorine generation and stable long-term operation.
HY Ti-Ni Import & Export provides engineering consultation and customized manufacturing for seawater electrolysis systems worldwide.
Purchase Guide
1. What is a Titanium anode for seawater electrolysis? |

What Is Titanium anode for seawater electrolysis?
Titanium anode for seawater electrolysis is an insoluble electrode used in electrochemical cells that convert seawater into chlorine-based disinfectants, hydrogen, or industrial chemicals. It enables controlled anodic reactions in chloride-rich environments.
These anodes are coated with MMO or noble metal catalysts to ensure long-term stability and high efficiency in seawater electrolysis systems. They are widely used in desalination plants, disinfection systems, and chlor-alkali industries.
| Parameter | Typical Range |
|---|---|
| Base Material | Titanium (Gr1 / Gr2) |
| Coating Type | MMO / Ru-Ir-Ta / Pt |
| Current Density | 100 – 3000 A/m² |
| Operating Voltage | 1.0 – 12 V DC |
| Chloride Concentration | 0.5 – 3.5% NaCl |
| Temperature Range | -2°C – 60°C |
| Design Life | 5 – 20+ Years |
| Reaction Type | Chlorine evolution |
| Application Medium | Seawater |
| Type | Structure | Application |
| Mesh Anode | Expanded mesh design | Chlorine generation cells |
| Plate Anode | Flat plate structure | Industrial electrolysis |
| Rod Anode | Cylindrical design | Compact systems |
| Tubular Anode | Hollow tube design | Flow-through reactors |
| Custom System | OEM design | Large-scale plants |
| Type | Current Output (A/m²) | Application Condition |
| Standard System | 100 – 500 | Low-load seawater systems |
| Industrial System | 500 – 1200 | General electrolysis |
| High Output System | 1200 – 2500 | High chlorine production |
| Precision System | 300 – 800 | Controlled dosing systems |
| Customized System | Up to 3000+ | Heavy-duty plants |

Water Treatment Industry

Electroplating Industry

Chlor-Alkali Industry

Marine Engineering

Hydrogen Energy Industry

Mining and Metal Recovery
To select the correct titanium anode, customers should provide seawater composition, chloride level, system capacity, and required chlorine output. These parameters determine coating type and anode configuration.
For seawater electrolysis, MMO or Ru-Ir coated titanium anodes are recommended due to their excellent chlorine evolution efficiency and corrosion resistance. Proper electrode design ensures stable long-term operation.
Customers should also define current density, flow rate, and reactor size. Correct system matching improves efficiency and reduces energy consumption.
HY Ti-Ni Import & Export provides OEM manufacturing and engineering support for global seawater electrolysis projects.

Q1: What is produced in seawater electrolysis?
Chlorine, sodium hypochlorite, and hydrogen.
Q2: Is it suitable for high salinity water?
Yes, it is designed for seawater environments.
Q3: What is the service life?
Typically 5–20+ years depending on conditions.
Q4: Can it be customized?
Yes, full OEM customization is available.
Q5: What coatings are used?
MMO, Ru-Ir-Ta, and platinum coatings.
Production site
State-of-the-art manufacturing for titanium anodes, precision coating and quality control.
Choseing titanium substrate
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Substrate Cutting
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Sandblasting
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Pickling
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Laser Cutting Configure Precious
Metal
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Coating
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Sintering
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Packaging
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Workshop
Precision machining and coating workshop for titanium anodes.
Titanium anode coating workshop
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Thermal decomposition sintering furnace workshop
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Titanium mesh anode production area
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Pickling/surface treatment process
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Pickling/surface treatment process
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Quality inspection workshop
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Worker operation photos
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Panoramic view of a clean production line
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Quality inspection
Rigorous testing for coating adhesion, electrochemical performance, and durability.
Dimension Inspection
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Coating Thickness Testing
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Coating Adhesion Testing
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Microstructure Analysis
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Conductivity Testing
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Corrosion Resistance Testing
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Bond Strength Testing
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Final Inspection & Packaging
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Packaging
Professional packaging to prevent damage and corrosion during transportation.
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Certifications
International certifications ensuring quality and environmental compliance.




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