Titanium mesh electrodes are functional electrodes featuring a titanium metal mesh substrate coated with an activated layer of precious metals or their oxides. This design combines the corrosion resistance of the titanium substrate with the electrocatalytic properties of the coating, making it an indispensable core component for energy conversion in the electrochemical industry. In the global market, titanium mesh electrodes are demonstrating robust growth momentum. Industry reports project that by 2031, the worldwide market for hybrid precious metal oxide-coated titanium electrodes will reach 2.57 billion yuan, with a compound annual growth rate (CAGR) of 5.2% from 2025 to 2031. . The advantages of titanium mesh electrodes lie in their dimensional stability, high electrocatalytic activity, extended service life, and ability to reduce energy consumption. Unlike traditional electrodes, the mesh structure of titanium mesh electrodes provides a larger specific surface area, facilitating bubble release and solution flow, thereby enhancing reaction efficiency.
The performance of titanium mesh electrodes hinges on their surface activated coatings, which determine the electrodes' electrocatalytic properties and operational environments. Common coating types include ruthenium-based, iridium-based, and platinum-based coatings. Ruthenium-coated titanium mesh electrodes, renowned for their outstanding chlorine evolution catalytic activity, are the mainstream choice in the chlor-alkali industry, enabling stable chlorine gas production at high current densities. Iridium-based coated titanium mesh electrodes are renowned for their exceptional oxygen corrosion resistance, making them particularly suitable for oxygen evolution-dominated environments such as acidic wastewater treatment and water electrolysis for oxygen production. Platinum-based coated titanium mesh electrodes (including platinum-plated titanium mesh) leverage their extremely high catalytic efficiency and chemical stability, primarily serving high-value-added applications like precious metal refining, fine chemicals, and PEM hydrogen generators. The choice of coating directly impacts titanium mesh electrode pricing, with platinum-coated variants typically commanding the highest cost, while ruthenium-coated alternatives offer relatively more economical pricing.
The chlor-alkali industry represents the largest application for titanium mesh electrodes, where ruthenium-based coated electrodes are extensively used in saltwater electrolysis to produce chlorine and caustic soda. Water treatment extensively employs iridium-based or ruthenium-based coated titanium mesh electrodes for electrochemical oxidation of high-concentration organic wastewater, heavy metal wastewater, and seawater electrolysis for chlorine disinfection. In hydrogen production via water electrolysis, particularly within PEM (Proton Exchange Membrane) hydrogen generators, platinum-coated or iridium-coated titanium mesh electrodes serve as critical components. The PCB manufacturing industry utilizes titanium mesh electrodes to replace traditional soluble anodes, enhancing plating uniformity and reducing anode sludge generation, thereby improving plated part quality. Electrolytic metallurgy leverages the high catalytic activity of titanium mesh electrodes to achieve efficient electrolytic refining of metals like copper and nickel, significantly reducing energy consumption. Cathodic protection systems employ MMO (mixed metal oxide) coated titanium mesh electrodes as anodes to prevent corrosion of metal structures in aqueous environments. Saltwater electrolysis utilizes specially coated titanium mesh electrode assemblies to efficiently produce chlorine-based chemicals for disinfection.
Choosing the appropriate titanium mesh electrode based on specific application requirements is critical. First, consider the electrolyte properties: environments containing chloride ions favor ruthenium-based coated titanium mesh electrodes, acidic or high oxygen evolution environments require iridium-based coated titanium mesh electrodes, while highly corrosive environments may necessitate platinum-based coated titanium mesh electrodes. Current density requirements are another key factor. Titanium mesh electrodes can operate stably at high working current densities. For example, in chlor-alkali production, current densities can reach 17 A/dm², more than double that of traditional graphite electrodes. Coating lifespan directly impacts operating costs. Titanium mesh electrodes with different coatings exhibit significant longevity variations; selection should reference supplier-provided reinforced electrolytic life data. Titanium mesh electrode pricing is significantly influenced by precious metal market fluctuations, with platinum-based coatings commanding the highest prices, followed by iridium-based, and ruthenium-based being relatively economical. For practical applications, consult internationally recognized suppliers such as Permascand, Umicore, or Magneto regarding current titanium mesh electrode pricing and specifications. Proper selection not only enhances process efficiency but also balances the initial investment in titanium mesh electrodes by reducing power consumption and replacement frequency, ultimately delivering superior overall economic benefits.
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