Titanium Electrode
Technology: sandblasting, pickling, brushing
Substrate: Ti is the substrate
Powder or not: not powder
Ti content (%): 99.6%
Shape: mesh, board, basket, stick, tube
Coating: mixed metal oxides of ruthenium, Iridium, tantalum, and titanium
Product Introduction
Titanium electrodes are essential components in modern electrochemical industries. Made from high-purity titanium substrate and coated with mixed metal oxides (MMO), these electrodes deliver excellent corrosion resistance, high conductivity, and long service life.
They are widely used in water treatment, electroplating, metal recovery, and chlor-alkali production, where stable and efficient electrochemical performance is required.
What is an MMO Titanium Electrode?
An MMO titanium electrode is a titanium-based anode coated with a layer of catalytic metal oxides, typically including:
Ruthenium oxide (RuO₂)
Iridium oxide (IrO₂)
Tantalum oxide (Ta₂O₅)
Titanium oxide (TiO₂)
The coating is applied using thermal decomposition technology, significantly improving:
Electrical conductivity
Corrosion resistance
Electrocatalytic activity
Key Features
Excellent corrosion resistance
High electrical conductivity
Long service life
Stable electrode spacing during operation
Low energy consumption
High current efficiency
Reusable titanium substrate
Technical Specifications
Substrate Material: Titanium (≥99.6%)
Manufacturing Process: Sandblasting / pickling / brushing
Coating Type: Mixed metal oxides (MMO)
Common Coating Systems: Ru-Ir, Ir-Ta
Structure: Non-powder, solid coated electrode
Types of MMO Coatings
1. Ru–Ir Coated Titanium Anode (Chlorine Evolution Type)
Advantages:
Stable electrode spacing and voltage
10–20% reduction in energy consumption
High chlorine purity (no CO₂ contamination)
Strong resistance to corrosion
High current density capability
Long service life
Prevents graphite/lead electrode contamination
Lightweight and easy to handle
Reusable titanium base
Mainly used in chlor-alkali and chloride systems
2. Ir–Ta Coated Titanium Anode (Oxygen Evolution Type)
Advantages:
Extremely high corrosion resistance
Oxygen evolution potential ≤ 1.5V
High electrocatalytic activity
Long operating life
Suitable for high current density
Titanium substrate can be reused after coating failure
Applications
Water & Wastewater Treatment
Electrocoagulation
Electrochlorination
Electrooxidation
Industrial wastewater purification
Electroplating Industry
Gold, silver, copper, nickel plating
Surface finishing applications
Metal Recovery
Recovery of Cu, Zn, Pb from industrial effluents
Chlor-Alkali Industry
Production of chlorine gas and caustic soda
Electrochemical Systems
Electrolytic cell manufacturing
Industrial electrochemical reactors
Key Advantages Over Traditional Electrodes
Superior lifespan vs graphite electrodes
No electrode dissolution contamination
Stable performance under high current density
Lower maintenance and replacement cost
Improved product purity
Higher energy efficiency
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