Mixed metal oxide titanium anodes

What are mixed metal oxide titanium anodes?
In the modern electrochemical industry, mixed metal oxide titanium anodes (MMO titanium anodes) have become the preferred choice due to their excellent corrosion resistance, long service life, and stable electrochemical performance.

MMO titanium anodes consist of a titanium substrate coated with a thin layer of active metal oxide, typically ruthenium oxide (RuO₂), iridium oxide (IrO₂), or tantalum oxide (Ta₂O₅). Titanium is an excellent conductor and corrosion-resistant substrate, while the oxide coating provides high catalytic activity and electrical conductivity. 

Types of Mixed Metal Oxide Titanium Anodes
1. Ruthenium-Iridium MMO Titanium Anodes

This type is widely used in chlorine evolution reactions, such as seawater electrolysis and chlor-alkali production. It combines excellent catalytic activity with chemical durability.

2. Iridium-Tantalum MMO Titanium Anodes

Used primarily in oxygen evolution environments like wastewater treatment and metal electrowinning, these anodes exhibit high stability in acidic media.

3. Ruthenium-Titanium MMO Anodes

Known for cost-effectiveness and efficiency, these are ideal for cathodic protection of steel structures and pipelines.

4. Custom Composition MMO Anodes

Manufacturers like Baoji City ShenAo Metal Materials Co., Ltd. can tailor the oxide composition to specific electrochemical reactions, achieving optimal performance for niche industrial applications.  

Advantages of Using Mixed Metal Oxide Titanium Anodes
1. Exceptional Durability

Thanks to the strong chemical bond between the oxide coating and titanium substrate, Mixed Metal Oxide Titanium Anodes resist mechanical wear and chemical attack, even under high current densities and extreme pH conditions.

2. Energy Efficiency

The low overpotential of MMO coatings reduces power consumption, translating to significant energy savings in long-term industrial operations.

3. Environmental Safety

MMO titanium anodes do not dissolve or release harmful byproducts into electrolytes, making them an environmentally friendly alternative to lead-based or mercury-based systems.

4. Customization and Versatility

Manufacturers can precisely control coating thickness, composition, and morphology, providing tailored solutions for diverse electrochemical processes.

5. Cost-Effectiveness

Although the initial investment is higher, the extended lifespan and reduced maintenance costs make Mixed Metal Oxide Titanium Anodes an economically attractive choice for industrial clients.

Applications of Mixed Metal Oxide Titanium Anodes
1. Electrochlorination and Water Treatment

In seawater or brine electrolysis systems, Mixed Metal Oxide Titanium Anodes are used to generate sodium hypochlorite for disinfection. Their corrosion resistance and low energy consumption make them ideal for large-scale desalination and municipal water treatment facilities.

2. Wastewater Treatment

MMO titanium anodes are widely applied in the degradation of organic pollutants, heavy metals removal, and electrochemical oxidation systems. Their stable oxygen evolution properties allow for efficient treatment of industrial wastewater in sectors such as petrochemical, pharmaceutical, and textile manufacturing.

3. Cathodic Protection

One of the most important applications of Mixed Metal Oxide Titanium Anodes is in impressed current cathodic protection (ICCP) systems. These anodes protect buried or submerged steel structures — pipelines, storage tanks, offshore platforms, and ship hulls — from corrosion, ensuring long-term asset integrity.

4. Electroplating and Metal Finishing

In electroplating processes, MMO titanium anodes provide uniform current distribution and reduce contamination. They are commonly used for plating metals like copper, nickel, and chromium, ensuring high-quality surface finishes.

5. Chlor-Alkali Industry

In the production of chlorine and caustic soda, Mixed Metal Oxide Titanium Anodes replace traditional graphite or lead dioxide anodes due to their longer lifespan and consistent electrochemical performance, resulting in lower operating costs and enhanced process safety.

6. Electrowinning and Electrorefining

MMO titanium anodes are also used in non-ferrous metal recovery, such as copper, zinc, and cobalt electrowinning. Their stability in acidic electrolytes enables efficient metal deposition and reduced maintenance requirements.

Product production process

Why Choose Baoji City ShenAo Metal Materials Co., Ltd.?

Baoji City ShenAo Metal Materials Co., Ltd. is a leading Chinese manufacturer specializing in Mixed Metal Oxide Titanium Anodes and other titanium-based products. With advanced production technology, strict quality control, and years of industry expertise, ShenAo provides high-performance MMO titanium anodes for global customers across multiple sectors.

Core Strengths

Over 20 years of expertise in non-ferrous metal processing

Complete supply chain for titanium and tantalum materials

Customizable MMO coating formulations (Ru-Ir, Ir-Ta, Ru-Ti, etc.)

ISO-certified production facilities and laboratory testing systems

Proven application success in water treatment, electroplating, and cathodic protection

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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.

The company has established research and development, production, and marketing departments, with strict process technology quality and testing standards to ensure reliable products and fast delivery efficiency to global customers.

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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Frequently Asked Questions (FAQs)

Q: What industries benefit most from MMO titanium anodes?
A: Industries such as chemical processing, water treatment, marine, and energy benefit significantly from their durability and efficiency.

Q: How do MMO titanium anodes compare to traditional anodes?
A: MMO anodes offer higher efficiency, better corrosion resistance, and a longer lifespan compared to traditional graphite or lead anodes.

Q: Can the anodes be customized?
A: Yes, we provide tailored solutions in various sizes, shapes, and coating compositions to suit specific applications.

Q: What is the typical service life of an MMO anode?
A: Depending on usage, the service life ranges from 5 to 20 years.

Contact Us

For expert advice and tailored solutions, contact us today:

• Company Name: Baoji City ShenAo Metal Materials Co., Ltd.
• Address: Wenquan Village Industrial Park, High-Tech Zone, Baoji City
• Contact: Wang Shujuan
• Phone: +86-187-2973-1603
• Email: zh@baojiti.com.cn

We’re committed to providing high-quality Mixed metal oxide titanium anodes and exceptional service to meet your industrial needs.