Titanium electrodes are advanced electrochemical components designed for demanding industrial applications requiring high corrosion resistance, excellent electrical conductivity, and long operational life.

Manufactured from high-purity titanium substrates and coated with advanced Mixed Metal Oxide (MMO) coatings, these electrodes provide superior electrocatalytic performance and stable operation under harsh chemical and high-current-density environments.

MMO titanium electrodes are widely used in water treatment, electroplating, metal recovery, chlor-alkali production, and industrial electrolysis systems, providing an efficient and reliable alternative to traditional graphite, lead, and other electrode materials.

What Is an MMO Titanium Electrode?

An MMO titanium electrode is a titanium-based electrode coated with a catalytic oxide layer. The coating is usually composed of precious metal oxides, including:

Ruthenium Oxide (RuO₂)

Iridium Oxide (IrO₂)

Tantalum Oxide (Ta₂O₅)

Titanium Oxide (TiO₂)

The MMO coating is applied through a thermal decomposition process, creating a stable catalytic surface that significantly improves:

Electrochemical activity

Corrosion resistance

Current efficiency

Electrode service life

Product Structure

Substrate Material:
High-purity Titanium (≥99.6%)

Coating Material:
Mixed Metal Oxide (MMO)

Common Coating Systems:

Ru-Ir coating (chlorine evolution type)

Ir-Ta coating (oxygen evolution type)

Manufacturing Process:

Titanium surface preparation

Sandblasting treatment

Acid pickling

MMO coating application

Thermal decomposition and curing

Performance inspection

Key Features

Excellent Corrosion Resistance

Titanium substrate combined with MMO coating provides outstanding resistance against:

Chloride solutions

Acidic electrolytes

Seawater environments

Strong oxidizing conditions

High Electrical Conductivity

The catalytic oxide coating reduces electrode polarization and improves electrochemical efficiency.

Long Service Life

MMO titanium electrodes offer significantly longer operating life compared with traditional graphite or lead electrodes.

Low Energy Consumption

Stable electrode performance helps reduce operating voltage and overall energy consumption.

High Current Density Capability

Suitable for continuous operation in industrial electrolysis systems.

Reusable Titanium Substrate

After coating service life is completed, the titanium substrate can be recoated and reused.

Types of MMO Titanium Electrodes

1. Ru-Ir Coated Titanium Anode

Chlorine Evolution Type

Ru-Ir titanium anodes are designed for chloride-containing electrolyte systems where chlorine generation is required.

Advantages

Stable operating voltage

High chlorine generation efficiency

Excellent chloride corrosion resistance

Reduced energy consumption

High current density operation

No electrode dissolution contamination

Lightweight and easy installation

Typical Applications

Chlor-alkali industry

Electrochlorination systems

Seawater disinfection

Chlorine production equipment

2. Ir-Ta Coated Titanium Anode

Oxygen Evolution Type

Ir-Ta titanium anodes are designed for oxygen evolution reactions and highly corrosive environments.

Advantages

Extremely high corrosion resistance

Oxygen evolution potential ≤1.5V

Excellent catalytic performance

Long operational lifetime

Suitable for high current density applications

Stable performance in acidic environments

Typical Applications

Wastewater treatment

Electro-oxidation systems

Copper recovery systems

Acid electrolyte electrolysis

Technical Specifications

Item	Specification
Substrate Material	Titanium ≥99.6%
Coating Type	Mixed Metal Oxide (MMO)
Coating Systems	Ru-Ir / Ir-Ta
Substrate Standard	ASTM B265 Titanium
Surface Treatment	Sandblasting + Pickling
Coating Method	Thermal Decomposition
Current Density	Customized according to application
Shape	Plate, Mesh, Rod, Tube, Custom Design
Service Life	Depends on operating conditions

Applications

Water and Wastewater Treatment

MMO titanium electrodes are widely used in:

Electrocoagulation systems

Electrooxidation treatment

Industrial wastewater purification

Electrochlorination systems

Electroplating Industry

Applications include:

Copper plating

Nickel plating

Gold and silver plating

Surface finishing processes

Advantages:

Stable current distribution

High coating durability

Improved plating quality

Metal Recovery

Used for recovery of valuable metals:

Copper recovery

Zinc recovery

Lead recovery

Typical applications:

Hydrometallurgy

Electrowinning systems

Industrial wastewater recycling

Chlor-Alkali Industry

Used for production of:

Chlorine gas

Sodium hydroxide

Hydrogen

Benefits:

High current efficiency

Low operating voltage

Long electrode lifetime

Advantages Compared with Traditional Electrodes

MMO Titanium Electrode	Traditional Electrode
Long service life	Shorter lifetime
No electrode dissolution	Possible contamination
High current efficiency	Lower efficiency
Lower energy consumption	Higher power consumption
Excellent corrosion resistance	Limited chemical resistance
Lightweight structure	Heavy and difficult maintenance

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