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Mmo Anode For Cathodic Protection

Name: Mmo Anode For Cathodic Protection
Brand: Titanium
SKU: 120763858

Origin: shaanxi, China (mainland).
Brand name: changsheng.
Purpose: anode for cathodic protection.
Process: sandblasting, pickling, brush painting.
Size: custom made.
Coating: grade Gr1 Ti is the substrate, ir-ta mixture is the coating.
Powder or no powder: no powder.
Ti content (%):99.6%.
Anode: wire, rod, tube,ribbon

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Product Introduction

MMO titanium anodes are high-performance impressed current anodes designed for cathodic protection systems.

MMO stands for Mixed Metal Oxide, referring to a catalytic metal oxide coating applied to a titanium substrate. The titanium substrate provides excellent mechanical strength and corrosion resistance, while the mixed metal oxide coating provides stable electrochemical activity and low consumption during long-term operation.

Compared with conventional sacrificial anodes, MMO titanium anodes offer significantly longer service life, higher current output capability, low consumption rates, and excellent dimensional stability.

MMO anodes are widely used in Impressed Current Cathodic Protection (ICCP) systems for protecting metallic structures from corrosion, including pipelines, storage tanks, marine structures, offshore platforms, reinforced concrete structures, and other buried or submerged facilities.

Changsheng Titanium manufactures customized MMO titanium anodes in different shapes, dimensions, coating systems, and configurations according to project requirements.

What Is an MMO Titanium Anode?

An MMO titanium anode consists of two main components:

Titanium Substrate

Titanium provides:

Excellent corrosion resistance

High mechanical strength

Lightweight construction

Good dimensional stability

Excellent fabrication properties

Commercially pure titanium, typically Grade 1 or Grade 2, is commonly used as the substrate material.

Mixed Metal Oxide Coating

The titanium substrate is coated with a catalytic mixed metal oxide layer.

Depending on the operating environment and electrochemical reaction, the coating may contain combinations of noble metal oxides such as:

Iridium oxide

Tantalum oxide

Ruthenium oxide

Other mixed metal oxide systems

The coating system is selected according to factors including:

Electrolyte composition

Soil resistivity

Seawater environment

Freshwater environment

Chloride concentration

Current density

Required service life

MMO Anodes for Impressed Current Cathodic Protection

MMO titanium anodes are commonly used in Impressed Current Cathodic Protection (ICCP) systems.

In an ICCP system, an external DC power source supplies current to the anode system.

The basic principle is:

DC Power Supply → MMO Anode → Electrolyte → Protected Structure

The protected metal structure is connected as the cathode.

By supplying sufficient protective current, the electrochemical potential of the protected structure is shifted into a range where corrosion is significantly reduced.

Unlike sacrificial anodes, MMO titanium anodes are designed to remain dimensionally stable and consume very slowly during operation.

This makes MMO anodes particularly suitable for long-term cathodic protection systems.

Available MMO Titanium Anode Shapes

Different structures require different anode configurations.

Changsheng Titanium can manufacture MMO anodes in the following forms:

MMO Titanium Ribbon Anode

MMO Titanium Wire Anode

MMO Titanium Rod Anode

MMO Titanium Tube Anode

MMO Titanium Mesh Anode

MMO Flexible Anode

MMO Linear Anode

Custom Fabricated Anodes

The anode configuration can be selected according to:

Installation location

Protected structure geometry

Current distribution requirements

Available installation space

Required design life

MMO Titanium Ribbon Anode

MMO titanium ribbon anodes are widely used in cathodic protection systems requiring large-area current distribution.

The thin titanium ribbon can be easily installed in different configurations and can also be fabricated into an anode grid.

Typical applications include:

Storage tank bottom protection

Reinforced concrete structures

Buried structures

Large-area cathodic protection systems

Advantages

Large effective current distribution area

Easy installation

Lightweight

Flexible design

Can be cut to required length

Suitable for grid configurations

Uniform current distribution

Titanium ribbon anodes are particularly suitable for large flat structures where uniform protective current distribution is required.

MMO Titanium Wire and Rod Anode

MMO titanium wire or rod anodes are suitable for linear cathodic protection applications.

They can be installed directly or incorporated into flexible anode systems.

Typical applications include:

Pipelines

Internal pipe protection

Water tanks

Water heater liners

Buried structures

Small-area cathodic protection systems

The diameter and length can be customized according to project requirements.

MMO Tubular Anode

MMO tubular titanium anodes are designed for applications requiring higher current output and durable mechanical performance.

Typical applications include:

Marine structures

Offshore platforms

Dock steel piles

Seawater systems

Deep-water structures

Storage tanks

The tubular structure provides excellent mechanical strength and allows efficient current distribution in submerged environments.

MMO Mesh Anode

MMO titanium mesh anodes provide a large active surface area and excellent current distribution.

They are commonly used for:

Reinforced concrete cathodic protection

Concrete bridge structures

Building foundations

Marine concrete structures

Large structural surfaces

The mesh structure allows the anode to maintain close contact with concrete or other installation media while providing relatively uniform current distribution.

MMO Flexible Anode

MMO flexible anodes typically use a titanium conductor with an MMO coating system designed for long-distance installation.

They are particularly suitable for:

Long pipelines

Buried pipelines

Pipeline internal cathodic protection

Distributed protection systems

Flexible anode systems can provide more uniform current distribution over long distances compared with conventional point anodes.

Product Specifications

Parameter	Specification
Product Name	MMO Titanium Anode
Application	Impressed Current Cathodic Protection
Substrate Material	Titanium Gr1 / Gr2
Coating Type	Mixed Metal Oxide
Coating System	Customized according to environment
Available Shapes	Ribbon / Wire / Rod / Tube / Mesh
Manufacturing Process	Surface Treatment + MMO Thermal Coating
Surface Preparation	Sandblasting / Pickling / Chemical Etching
Size	Customized
Current Output	Designed according to application
Service Life	Designed according to operating conditions

Custom specifications are available according to customer drawings and cathodic protection system requirements.

MMO Coating Systems

The MMO coating system is selected according to the specific operating environment.

Common coating systems may include:

Iridium-Based MMO Coating

Iridium-based coatings are commonly selected for applications involving oxygen evolution and demanding electrochemical environments.

Typical environments include:

Soil

Freshwater

Seawater

Reinforced concrete

Other cathodic protection applications

Ruthenium-Based MMO Coating

Ruthenium-containing coating systems may be used in environments where chlorine evolution is involved.

Typical applications include chloride-containing electrolytes and electrochemical systems with high chlorine evolution activity.

The final coating composition should be selected according to the electrolyte composition and actual operating conditions.

Application Fields

Soil Cathodic Protection

MMO titanium anodes are widely used for underground structures exposed to soil environments.

Typical applications include:

Buried pipelines

Underground storage tanks

Underground steel structures

Tank farms

Buried utility systems

The anode configuration can be designed according to soil resistivity, moisture conditions, installation depth, and required protective current.

Storage Tank Bottom Protection

MMO titanium ribbon anodes are commonly used for cathodic protection of large storage tank bottoms.

The ribbon can be arranged in a grid configuration to provide relatively uniform current distribution across the tank bottom.

Typical applications include:

Oil storage tanks

Chemical storage tanks

Water storage tanks

Fuel storage facilities

The spacing and arrangement of the titanium ribbon can be customized according to the tank diameter and required protection current.

Marine and Seawater Structures

Titanium MMO anodes provide excellent corrosion resistance in marine environments.

Typical applications include:

Dock steel piles

Offshore platforms

Ship hulls

Seawater intake systems

Marine pipelines

Harbor structures

The coating system should be selected according to seawater composition, operating temperature, current density, and expected service life.

Reinforced Concrete Cathodic Protection

MMO titanium mesh and ribbon anodes are widely used for cathodic protection of reinforced concrete structures.

Typical applications include:

Bridges

Marine concrete structures

Parking structures

Building foundations

Concrete pipelines

Industrial structures

The mesh structure provides a large active surface area and helps distribute protective current across the reinforced concrete structure.

Pipeline Cathodic Protection

MMO anodes can be used in external and internal pipeline cathodic protection systems.

Applications include:

Oil pipelines

Gas pipelines

Water pipelines

Chemical pipelines

Underground transmission pipelines

Flexible MMO anode systems are particularly suitable for long-distance pipeline protection.

Water Storage and Heating Systems

MMO titanium anodes can also be used in water-related systems requiring corrosion protection.

Typical applications include:

Water tanks

Water heaters

Internal tank protection

Industrial water systems

The electrode configuration can be customized according to the internal structure and operating conditions.

Key Advantages

Long Service Life

MMO titanium anodes have very low consumption rates when operated within properly designed electrochemical conditions.

The coating system and titanium substrate can be optimized to meet the required design life of the cathodic protection system.

Excellent Corrosion Resistance

Titanium has excellent corrosion resistance in many aggressive environments.

Combined with a stable mixed metal oxide coating, MMO titanium anodes can operate reliably in:

Soil

Seawater

Freshwater

Reinforced concrete

Industrial electrolytes

High Current Output Capability

MMO coatings provide excellent electrochemical activity.

This allows titanium anodes to provide stable protective current in impressed current cathodic protection systems.

Excellent Dimensional Stability

Unlike conventional consumable anodes, MMO titanium anodes maintain their structural dimensions during long-term operation.

This makes them suitable for applications requiring predictable long-term performance.

Lightweight

Titanium has a relatively low density compared with many conventional metallic materials.

This makes installation and handling easier, particularly for large cathodic protection systems.

Flexible Design

Titanium can be fabricated into various structures.

Available configurations include:

Ribbon

Mesh

Wire

Rod

Tube

Custom fabricated structures

This allows the anode system to be designed according to the geometry of the protected structure.

Uniform Current Distribution

By selecting appropriate anode geometry and installation spacing, MMO titanium anode systems can provide effective and relatively uniform protective current distribution.

This is particularly important for:

Tank bottoms

Pipelines

Reinforced concrete

Large marine structures

Comparison: MMO Anodes vs Sacrificial Anodes

Feature	MMO Titanium Anode	Sacrificial Anode
Operating Principle	External power supply	Natural galvanic potential
Consumption Rate	Very low	Continuously consumed
Service Life	Long design life	Limited by anode mass
Current Output	Adjustable	Limited by material potential
Dimensional Stability	Excellent	Gradually decreases
Power Supply Required	Yes	No
Suitable for Large Structures	Excellent	Depends on system design
Custom Geometry	Highly flexible	Limited

The final selection between an impressed current system and a sacrificial anode system depends on factors such as structure size, environment, required service life, installation conditions, and maintenance requirements.