mmo coated titanium electrode

What Is an MMO Coated Titanium Electrode?
Mixed Metal Oxide (MMO) coated titanium electrodes are advanced anode materials widely used in electrochemical applications. These electrodes consist of a titanium substrate coated with a layer of mixed metal oxides—typically ruthenium, iridium, tantalum, or platinum group metals—which significantly enhance conductivity, corrosion resistance, and catalytic activity.

The core benefit of the MMO coated titanium electrode lies in its ability to operate efficiently under extreme industrial conditions while maintaining structural integrity and long-term performance. This unique combination of properties has made MMO electrodes a standard component in water treatment, electroplating, cathodic protection, and chlorine generation.

Comparison With Other Electrode Types

Clearly, MMO coated titanium electrodes outperform alternatives across most critical performance indicators.

Why Are MMO Coated Titanium Electrodes in High Demand?

​​​​​​​​​1: Superior Durability and Corrosion Resistance
Thanks to the corrosion-resistant nature of titanium and the protective MMO layer, these electrodes are well-suited for harsh environments such as seawater, acidic media, and alkali solutions. Unlike traditional graphite or lead-based anodes, MMO coated titanium electrodes maintain dimensional stability and resist wear, even under continuous operation.

2: High Electrochemical Efficiency
MMO coatings offer excellent electrocatalytic activity, reducing overpotentials and increasing current efficiency. The high oxygen evolution potential makes these electrodes ideal for applications such as:

Chlor-alkali processes

Electrolytic water treatment

Metal electrowinning

Electrolytic synthesis

This efficiency translates into energy savings and reduced operational costs over time.

Key Technical Advantages of MMO Coated Titanium Electrodes
1: Long-Term Stability
MMO coated titanium electrodes are dimensionally stable anodes (DSAs), meaning their shape and size remain unchanged over time. This quality ensures predictable electrochemical behavior and reduces the need for recalibration or system adjustments.

2: Tailorable Coating Formulas
Depending on the intended application, the MMO coating composition can be adjusted. For example:

Iridium-tantalum MMO: Best for oxygen evolution in acidic media

Ruthenium-iridium MMO: Ideal for chlorine evolution from seawater

Platinum-coated MMO: Used in high-current-density or high-purity processes

This customizability makes MMO coated titanium electrodes versatile across industries.

3: Environmentally Friendly
Unlike lead-based anodes, MMO coated titanium electrodes do not introduce toxic contaminants into the environment. Their use supports green chemistry principles and aligns with growing global demand for sustainable industrial practices.

Applications of MMO Coated Titanium Electrodes Across Industries

Applications of MMO Coated Titanium Electrodes Across Industries
1: Water and Wastewater Treatment
MMO coated titanium electrodes play a crucial role in electrochemical water treatment methods such as:

Electrocoagulation

Electrooxidation

Electroflotation

These processes remove contaminants like heavy metals, organic compounds, and pathogens. The MMO coating ensures long service life and stable operation, even with fluctuating water chemistry. In particular, electrochemical advanced oxidation processes (EAOPs) rely on MMO anodes for generating hydroxyl radicals efficiently.

2: Cathodic Protection Systems
In the oil & gas and marine industries, MMO coated titanium electrodes serve as anodes in impressed current cathodic protection (ICCP) systems. These systems prevent corrosion in structures such as:

Offshore platforms

Pipelines

Storage tanks

Ship hulls

Compared to sacrificial anodes, MMO anodes offer lower maintenance and longer service life, which is especially valuable in remote or underwater installations.

3: Electroplating and Metal Finishing
In electroplating, the choice of anode directly affects the deposition quality, bath stability, and production cost. MMO coated titanium electrodes provide consistent performance in:

Chrome plating

Nickel plating

Copper plating

Precious metal finishing

Their inert and stable surface reduces impurities in the plating bath and minimizes downtime due to anode replacement.

4: Chlorine Generation and Hypochlorite Production
MMO coated titanium electrodes are widely used in chlorine generation from brine solutions. This application is common in:

Swimming pool disinfection

Industrial sanitization

Bleach production

With a high chlorine evolution efficiency and extended operational lifespan, these electrodes outperform conventional graphite or DSA® types.

Product production process

Frequently Asked Questions (FAQs)
1: How long does an MMO coated titanium electrode last?
Depending on usage and coating type, MMO coated titanium electrodes can last between 2 and 10 years, making them an excellent long-term investment.

2: Can MMO electrodes be reused?
The titanium substrate can often be recoated once the MMO layer wears out, extending the total lifecycle of the electrode and reducing replacement costs.

3: Are MMO coated titanium electrodes suitable for seawater applications?
Yes, particularly ruthenium-based coatings are highly effective in seawater electrolysis, commonly used in chlorine generation and marine cathodic protection systems.

4: What is the typical lead time for custom MMO electrodes?
Lead times vary by complexity and order quantity but generally range from 2–4 weeks for custom designs.

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Baoji City shenAo Metal Materials Co., Ltd. was founded in 2008 and is located in the "China Titanium Valley" Shaanxi Baoji High tech Industrial Development Zone. It focuses on the research and production of non-ferrous metal composite materials, precious metal coated titanium anodes (DSA), and titanium cathode products. Based on mature bimetallic explosive welding technology and advanced active coating manufacturing process, relying on strong resources in the Chinese titanium valley industry and the processing and manufacturing capabilities for bidding for the Olympics, we accurately and timely meet customer needs and create value for customers; Leading the development of energy-saving and environmentally friendly metal composite materials products through technological innovation, and continuously improving to meet customers' demand for long-life titanium electrodes.

The company has established close partnerships with hundreds of non-ferrous metal equipment manufacturers and electrochemical application enterprises, and has been designated as a long-term high-quality supplier.

We provide a variety of customized services, mainly for the followingWe provide a variety of customized services, mainly for the following：

Waterjet Cutting 
Laser Cutting 
Welding 
Plasma Welding 
Polishing 
Press 
Hydraulic straightening machine
Bending 
Drill Press 

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FAQs

Q1: What is an product?
A: An product is a titanium electrode that is coated with a mixed metal oxide layer, providing excellent corrosion resistance and conductivity, suitable for electrochemical applications.

Q2: What industries use the products?
A: These electrodes are used in industries such as water treatment, chemical processing, electroplating, energy generation, and seawater desalination.

Q3: What is the service life of an product?
A: The service life typically ranges from 5 to 10 years, depending on the application and operating conditions.

Q4: Can products be customized?
A: Indeed, we offer customizable sizes, coatings, and designs to meet specific customer needs.

Q5: Are MMO Coated Titanium Electrodes environmentally friendly?
A: Yes, these electrodes are designed to contribute to sustainable and energy-efficient processes, especially in water treatment and energy generation.

Contact Details

Baoji City ShenAo Metal Materials Co., Ltd.
Address: Wenquan Village Industrial Park, High-tech Zone, Baoji City
Contact: Wang Shujuan
Phone: 18729731603
Fax: +86-917-3380538
E-mail: zh@baojiti.com.cn

For more details or to place an order, feel free to contact us! We're here to assist you with all your metal material needs.