Ruthenium Iridium Titanium Mesh Anode
The core of the electrochemical industry
From traditional graphite electrodes to advanced coated titanium anodes, innovations in materials science are driving the rapid development of the electrochemical industry.
Titanium mesh anode
In the electrochemical industry, titanium anode mesh has rapidly grown into a core product supporting the development of the industry, replacing traditional materials and leading technological innovation.
Limitations of traditional graphite electrodes
The graphite electrodes commonly used in the early electrochemical industry did play a role in conductivity and electrode reactions, but they had significant shortcomings.
- Poor mechanical strength, prone to wear and tear or breakage during use.
- Insufficient corrosion resistance in corrosive environments.
- Difficult to work continuously in harsh electrochemical fields.
Advantages of titanium anode mesh
With the advancement of materials science research, titanium has become the ideal choice due to its outstanding properties.
- It is lightweight yet has high strength.
- It possesses good corrosion resistance, especially in electrochemical environments.
- Excellent catalytic activity is achieved through coating technology.
- It significantly improves the efficiency of electrochemical reactions.
Ruthenium Iridium Coated titanium mesh anode
The coated titanium anode mesh is based on a main frame made of industrially pure titanium, which provides a solid foundation for the entire anode mesh. On the surface of the titanium substrate, a coating composed of precious metal oxides is applied; this coating is the key to the anode mesh’s exceptional performance.
Principle of the chlorination reaction
When chloride ions reach the surface of the coated titanium anode mesh, the precious metal oxides in the coating interact strongly with them, reducing the activation energy of the reaction. This allows the chloride ions to easily lose their electrons and release chlorine gas as a result.
2Cl⁻ – 2e⁻ = Cl₂↑
Principle of the oxygenation reaction
Under the combined effect of the electric field and the coating, the oxygen atoms in water molecules lose their electrons, resulting in the formation of oxygen gas and hydrogen ions. This entire process is inseparable from the efficient catalytic action of the coating.
2H₂O – 4e⁻ = O₂↑ + 4H⁺
Applications in multiple fields
Coated titanium anode meshes, with their excellent performance, have been widely used in multiple industrial fields, driving technological progress and efficiency improvement in related industries.
Chlor alkali industry
Promote the chemical transformation of brine into caustic soda, chlorine gas, and hydrogen gas, reduce the cell voltage by approximately 15%, and significantly decrease electricity consumption.
Electroplating process
In the chrome plating process for high-end hardware, it serves as the core of the electrochemical reaction, ensuring a uniform distribution of electric current and thereby improving the quality of the electroplating.
Wastewater treatment
It catalyzes the generation of hydroxyl radicals, efficiently degrades refractory organic impurities in printing and dyeing wastewater, and realizes the harmless treatment of pollutants.
Operation parameter control
Reasonably controlling the operating parameters is the key to ensuring the stable operation of the titanium anode mesh and extending its service life.
For the coated titanium anode mesh, the operating parameters must be controlled within a reasonable range to ensure its stable operation and prolong its service life.
Current density is a key operating parameter, and excessively high current density can also have an adverse effect on the anode mesh. Under normal circumstances, it is recommended that the long-term operating current density of the coated titanium anode mesh should be ≤ 1000 A/m². When the current density is too high, the electrochemical reactions on the surface of the anode mesh will become abnormally intense, which will accelerate the consumption of the coating and shorten the service life of the anode mesh.
The polarity reversal cycle is also a parameter that cannot be ignored. Reversing the current for 4 minutes every 24 hours can effectively repair local passivation, ensuring that the anode mesh always maintains a good working condition. This is because during the electrolysis process, a passivation film will gradually form on the surface of the anode mesh, affecting its electrocatalytic activity. Regular polarity reversal, however, can break this passivation film, revitalizing the anode mesh and improving its working efficiency and stability.
