DSA Anode
DSA anode, also known as dimensionally stable anodes, are titanium or niobium substrate anodes coated with mixed oxide catalysts of noble metals; composed of different elements such as iridium, ruthenium, tantalum, platinum and rhodium. Depending on the gas produced in the anode during the electrochemical oxidation reaction, DSA anode can be divided into chlorine precipitation anodes and oxygen precipitation anodes, respectively.
With high conductivity, long-term stability and strong corrosion resistance, DSA electrodes can be used as electrolytic anodes, which are widely used in the chlor-alkali industry, water treatment, seawater desalination, sodium hypochlorite production, electrolytic deposition and metal plating processes.
Utilizing our state-of-the-art process technology, Giant is able to provide anodes in a variety of shapes and sizes: sheets, plates, strips, webs, wires, filaments, rods, tubes, or combinations/assemblies thereof.
Product Advantages
With excellent corrosion resistance, low oxygen precipitation overvoltage, no pollution of cathode products, it is expected to replace the traditional Pb anode and realize energy saving and emission reduction.
Principle of operation
DSA anodes consist primarily of a substrate material (usually titanium) coated with a thin layer of precious metal oxides (e.g. ruthenium, iridium and titanium oxide). These oxides provide the anode with the necessary electrical conductivity and catalytic properties for efficient electrochemical reactions.The chemical composition of the DSA anode facilitates the formation of a stable passivation film, which prevents corrosion and ensures a longer service life compared to conventional anodes.
System Composition and Structure
The DSA coated titanium anode consists of a titanium substrate with a uniform and continuous noble metal oxide coating. This structure provides excellent conductivity and stability during operation. The use of different precious metals in the coating can be customized for specific application requirements.
MMO Electrode
Hydrogen electrolysis is the process of using electricity to break down water into hydrogen (H 2 ) and oxygen (O 2 ).MMO coated titanium anodes are the anode portion of hydrogen electrolysis. MMO-coated titanium anodes are also known as dimensionally stable anodes, where MMO is an acronym for mixed metal oxide.
MMO coated titanium anodes have a longer service life than conventional anodes. Its mixed metal oxide coating protects the titanium anode from corrosion and extends its service life. In addition, the coating increases the surface area of the anode, which improves reaction efficiency and ensures efficient operation over time. This allows the use of higher current densities and lower operating voltages, thereby reducing energy consumption and operating costs.
Overall, MMO-coated titanium anodes are an efficient option, especially for hydrogen production processes. It is suitable for a wide range of environments, including seawater, brackish water, fresh water, carbon backfill, concrete, sand and soil.
Custom MMO Anode
At Giant, we put your unique needs first. For over a decade, we've been dedicated to turning your vision into a practical solution through our carefully crafted MMO anodes. From design to coating thickness, every decision in our manufacturing process is influenced by your specific requirements.
Customized MMO anodes for your specific needs
Material Selection: We can customize the MMO coating composition to meet your application requirements.
Shape and design customization: Whether you need tubular, wire, disc or mesh anodes, we can manufacture to your specifications.
Coating Thickness: We can optimize the MMO coating thickness for your application requirements and life expectancy.
Current rating customization: The current output of the anode can be adjusted to meet the specific requirements of your project.
Connection type: The type of connector, such as cable or lug, is customized to your installation needs.
Application-specific design: Whether used for cathodic protection, chlorination or electroplating, we can design anodes for the intended use.
Advantages of MMO anode
Durability and longevity: MMO anodes are known for their extraordinarily long service life, providing extreme corrosion resistance and reducing the need for frequent replacements.
Cost Effective: Despite the high initial investment, the long life and minimal maintenance requirements of MMO anodes make them cost effective in the long run.
Adaptability: These anodes are versatile and suitable for water treatment, cathodic protection, electrolytic chlorination and more.
High electrochemical performance: Efficient current distribution is the hallmark of MMO anodes, ensuring their effectiveness in electrochemical processes.
Environmentally friendly: Compared with other anode materials, Mixed Metal Oxide Anodes produce the least amount of waste and have less impact on the environment, making them more favorable to the environment.
Low overpotential: MMO anodes require a lower voltage to initiate the reaction, helping to conserve energy.
Robustness: The ability to operate efficiently at different temperatures and pH values allows for adaptation to a variety of environments.
Uniform Current Distribution: Consistent and effective electrochemical activity is maintained throughout the life of these anodes, ensuring uniform current distribution.
MMO Coated Titanium Anodes
Mixed metal oxide coatings on titanium substrates are widely used as anodes in various electrochemical processes, such as chlorination, oxygen production, electrolytic deposition of metals and cathodic protection in the chlor-alkali industry.
The application of materials with high conductivity and long-term stability in electrochemical environments is considered to be one of the main goals of electrochemical cell engineering. Metal oxides such as RuO2 and IrO2, which have high electrical conductivity and electrochemical activity, have received much attention as electrocatalysts in the electrochemical industry. In order to further improve the stability of these oxides, other oxides such as TiO2, Ta2O5 and ZrO2 have been added to these active oxides.
Anodic chloride and oxygen precipitation are the most important reactions in the application of these materials. Oxygen precipitation is the most important reaction in electrochemical processes such as water electrolysis, electrolytic deposition of metals and cathodic protection.
In addition, this reaction is unavoidable in many anodic processes. RuO2-based coatings (e.g. pure RuO2 and RuO2-TiO2) are very stable to the chloride precipitation reaction. However, they are unstable to anodic oxygen precipitation and are subject to severe corrosion in acidic media. IrO2 is more stable for the oxygen precipitation reaction, but its oxygen precipitation electrocatalytic activity is lower. Therefore, due to the favourable properties of the two oxides, a mixture of IrO2 and RuO2 could be a suitable electrocatalyst for the oxygen revolution.
Mixing two or more different oxides can affect the electrocatalytic performance of the oxides by changing the microstructure, surface composition and morphology of the electrocatalyst components. In addition, the surface composition, morphology and microstructure of mixed oxide coatings are not homogeneous and may be affected by preparation factors and active oxide content.
Ruthenium mixed oxide coated titanium anodes are generally used in environments such as hydrochloric acid, electrolytic seawater and electrolytic brine environments.
Fields of application
Electrolytic production of non-ferrous metals, electrolysis of chlorinated salts, electrolysis of salt/seawater, metal foil manufacturing, electrochemical treatment of metal foil surfaces, disinfection, electrolytic extraction and recovery of non-ferrous metals, organic electrolysis, cathodic protection, electrodialysis, production of acidic and alkaline ionised water, treatment of industrial wastewater.
Platinized Titanium Anode
Platinized titanium anode consist of titanium anodes coated with platinum or platinum metal oxide. These anodes act as inert and non-consumable electrodes, making them very durable. In addition, they remain insoluble in the electrolyte even under the conditions present in the electrolysis process.
Platinum Plated Titanium Anode
Platinum plated titanium anode consist of titanium anodes coated with platinum or platinum metal oxide. These Platinum plated titanium anode act as inert and non-consumable electrodes, making them very durable. In addition, they remain insoluble in the electrolyte even under the conditions present in the electrolysis process.
Platinum is an ideal anode material due to its excellent electrical conductivity and low consumption rate. However, in view of its status as a precious metal, a cost-effective method of electroplating a thin layer of platinum on a highly corrosion-resistant substrate is usually employed. Titanium, known for its ability to form insulating oxide films under anodic conditions, is a commonly used anode substrate.
Electroplating titanium anode OEM
MMO Titanium Anodes are built to withstand any environment, whenever your equipment, parts or hardware need to be protected from corrosion, titanium comes into play. When it comes to salt water or acidic environments, Titanium Anodes are unmatched. They can act as sacrificial components, leaving materials susceptible to corrosion damage unaffected.
If you are looking for titanium anodes for this cathodic protection or other applications, GIANT ANODE can meet your supply needs. We offer a wide range of coating types, from Pt, niobium and tantalum to the most active RuO2 and IrO2 catalysts. This rich variety, coupled with our MMO or DSA options, means you can find an anode that fits your requirements. In general, the intended uses of our products include:
electrolytic decomposition
water treatment
Chlor-alkali process
Hydrometallurgical applications
plating
water ionization
Manufacture of MMO Titanium Anode plates, rods, etc. without production restrictions
Not all anodes are created equal, and neither are their actual applications. Thatâ??s why we make them in plates, tubes, sheets, mesh, and many other shapes. If none of these are suitable for your project, donâ??t worry. You can always request a custom anode and our technicians will tailor it to your needs.
