Ruthenium Series Titanium Anode details
We specialize in the production of ruthenium-based titanium anodes (DSA-coated anodes). As highly efficient and energy-efficient insoluble anodes, these products are widely used in the chlor-alkali industry, electroplating, seawater electrolysis, wastewater treatment, and cathodic protection. Our products offer advantages such as low chlorine evolution potential, high electrocatalytic activity, and long service life.
Ruthenium-based Titanium Anodes, also known as metallic anodes or dimensionally stable anodes, are insoluble anodes with a Titanium base and a catalytic layer coated with ruthenium or its oxide. They are widely used in industry due to their excellent electrochemical performance.
Ruthenium Series Titanium Anode details
Core Features and Advantages
Ruthenium-based titanium anodes exhibit the following outstanding advantages in electrochemical reactions:
Excellent electrochemical catalytic activity: The coating effectively reduces the overpotential of the chlorine or oxygen evolution reactions, resulting in a lower operating voltage and a 10%-20% energy saving compared to traditional anodes (such as graphite or lead anodes).
Excellent corrosion resistance and ultra-long life: The combination of a titanium substrate and a precious metal oxide coating ensures exceptional stability in harsh environments with strong acids, bases, and high chloride ion concentrations. In the chlor-alkali industry, their service life can exceed six years, far exceeding the approximately eight months of graphite anodes.
High dimensional stability: The anode itself does not dissolve during the electrolysis process, maintaining a constant interelectrode distance, thereby ensuring stable cell voltage and facilitating precise control of the production process.
Environmentally friendly: This eliminates the electrolyte contamination and anode mud problems associated with the dissolution of traditional lead or graphite anodes, helping to improve cathode product purity and reduce environmental pollution.
Main Types and Applications
Depending on subtle differences in coating composition, ruthenium-based titanium anodes can be categorized into different types to suit varying industrial needs.
| TYPE | Main ingredient Characteristics | Core Application Areas |
| Pure Ruthenium-coated Anode | The coating is mainly composed of ruthenium oxide (RuO₂) | Chlor-alkali industry, seawater electrolysis, swimming pool disinfection |
| Ruthenium-iridium coated Anode | Composite coating with added iridium oxide (IrO₂) for more balanced performance | Electroplating (especially nickel plating), precious metal recycling, PCB manufacturing |
| Multi-Component Composite Coating Anode | Adding elements such as tin (Sn) and tantalum (Ta) to ruthenium and iridium | Complex organic wastewater treatment, special electrolysis synthesis |
Applications include:
Chlor-alkali Industry: Used in the core reaction of brine electrolysis, it efficiently produces high-purity chlorine and caustic soda, making it the mainstream technology for global chlor-alkali production.
Electroplating and Surface Treatment: In the electronics and hardware industries, it can provide extremely high current density, ensuring uniform and dense coatings, significantly improving product quality.
Environmental Protection and Water Treatment: Used in electrochemical wastewater treatment, seawater desalination pretreatment, and on-site disinfection of domestic water and swimming pools (electrolysis produces sodium hypochlorite), achieving COD removal rates of up to 95%.
Cathode Protection: Serves as an anode in impressed current systems to protect metal structures such as buried pipelines, ships, and docks from corrosion.
Selection and Usage Recommendations
Selecting the appropriate ruthenium-based titanium anode requires comprehensive consideration of the following:
Reaction Type: If the process primarily relies on chlorine evolution (such as chlor-alkali or chlorine-containing wastewater treatment), pure ruthenium or ruthenium-iridium coatings are ideal. If strong oxidizing acids (such as sulfuric acid) are present in the environment, the more oxidation-resistant iridium-tantalum anode should be considered.
Operational Economy: While the initial investment is higher than traditional anodes, the long lifespan and energy-saving features offer significant overall cost advantages. For large-scale, continuously operating projects, the economics are extremely high.
Customization: Anodes can be manufactured in various shapes, such as plates, mesh, and tubes, to meet the design requirements of specific electrolytic cells.
Summary
In summary, ruthenium-based titanium anodes, with their combined advantages of high efficiency, energy efficiency, long lifespan, and environmental friendliness, have become an indispensable key material in the modern electrochemical industry. From large-scale chlor-alkali production to precision electronic plating, and to the increasingly important field of environmental protection, they silently play a vital role. With the development of emerging industries such as new energy and hydrogen energy, their application prospects will be even broader.
We hope the above information provides you with a comprehensive understanding of ruthenium-based titanium anodes. If you have a specific application scenario in mind, we can further discuss more specific selection options.
We specialize in the production of ruthenium-based titanium anodes (DSA-coated anodes). As highly efficient and energy-efficient insoluble anodes, these products are widely used in the chlor-alkali industry, electroplating, seawater electrolysis, wastewater treatment, and cathodic protection. Our products offer advantages such as low chlorine evolution potential, high electrocatalytic activity, and long service life.
