Titanium Fiber Felt for PEM is made of micron-sized pure titanium fibre by special lay-up process and high-temperature vacuum sintering technology, which has excellent three-dimensional mesh porous structure, and is widely used as anode gas diffusion layer (GDL) in PEM (Proton Exchange Membrane) water electrolysis hydrogen production process. The following are the specific roles and characteristics of Titanium Fiber Felt for PEM in water electrolysis hydrogen production process:
- Role:
Gas Diffusion Layer: In PEM water electrolysis hydrogen production, Titanium Fiber Felt for PEM acts as a Gas Diffusion Layer (GDL) in the anode part of the electrolyzer. It contributes to the efficient diffusion and transport of hydrogen and ensures the gas-liquid equilibrium at the reaction interface.
Corrosion Resistance: The excellent corrosion resistance of Titanium Fiber Felt for PEM enables it to work stably in acidic electrolyte for a long period of time, preventing the electrolyzer from corroding during water electrolysis and prolonging the service life of the equipment.
Current Conductivity: The structural design of Titanium Fiber Felt for PEM provides good current conductivity to support higher current densities, thereby increasing hydrogen production.
Thermal Management: Due to its better heat dissipation, Titanium Fiber Felt for PEM helps to maintain the stability of the electrolysis reaction and reduces equipment failure or efficiency loss due to high temperature.
- Product Characteristics:
Porosity and Surface Area: Titanium Fiber Felt for PEM has a uniformly high porosity (60%-70%), which gives it a large specific surface area, helping to improve reaction efficiency and optimise gas-liquid mass transfer.
High Temperature Resistance: Titanium Fiber Felt for PEM has a temperature resistance of up to 900°C, which is suitable for extreme working conditions and high temperature operation.
Low Resistance: Good conductivity ensures low cell voltage at high current densities for improved efficiency.
Stability and longevity: Titanium Fiber Felt for PEM is resistant to corrosion and oxidation, and is able to maintain stable performance in harsh environments for extended service life. Its high temperature resistance and good thermal stability enable it to maintain excellent performance in long-term operation.
Structural Stability: Through the vacuum sintering process, Titanium Fiber Felt for PEM has excellent shape stability and mechanical strength to withstand impact and alternating loads.
Easy to clean: It can be regenerated by backwashing and other methods to reduce maintenance costs.
- Specification and customisation:
Thickness: The common thickness of Titanium Fiber Felt for PEM is 0.25mm, 0.40mm, 0.60mm, 0.80mm and so on. The specific choice depends on the application requirements.
Size: Different sizes can be customised according to requirements, common sizes are 5×5 cm, 10×10 cm, 20×20 cm, etc.
Porosity: Different porosities (50%-70%) can be selected to meet different gas diffusion requirements.
- Application field:
Titanium Fiber Felt for PEM is widely used in many fields:
Hydrogen and Fuel Cell: It is used as a gas diffusion layer in PEM water electrolysis hydrogen electrolyzer to generate hydrogen.
Military & Aerospace: Due to its high strength and corrosion resistance, Titanium Fiber Felt for PEM is also widely used in the aerospace industry as a key component in fuel cell systems and other demanding environments.
Medical: Titanium Fiber Felt for PEM is also used in certain medical devices, especially where high corrosion resistance and strength are required.
Summary:
Titanium Fiber Felt for PEM is a key component in the PEM water electrolysis hydrogen production technology due to its excellent structure, corrosion resistance, electrical conductivity and high temperature resistance. It not only improves hydrogen production and purity, but also extends the service life of the equipment and ensures the efficient and stable operation of the system.