Product Details
The platinum-coated sintered titanium felt is a specialized material designed specifically for the gas diffusion layer of Proton Exchange Membrane Fuel Cells (PEMFCs). This material not only inherits the excellent characteristics of sintered titanium felt, such as high porosity, good corrosion resistance, and superior mechanical properties, but also enhances its performance in PEMFCs through platinum coating.
Parameters
Material : Ti
Thickness : 0.25mm - 3.0mm
Porosity : 70% - 85%
Technique : Vacuum sintering
Brand Name : LVDA
Place of Origin : Henan, China
Properties
1. High Porosity and Good Breathability
The platinum-coated sintered titanium felt boasts a porosity of 70%-85%, providing excellent breathability and water drainage capabilities. In PEMFCs, the high-porosity gas diffusion layer ensures smooth access of reactant gases (such as hydrogen and oxygen) to the catalyst layer, maintaining efficient electrochemical reactions.
2. Excellent Corrosion Resistance
Titanium, being a chemically stable metal, resists various forms of chemical corrosion. Therefore, the platinum-coated sintered titanium felt exhibits exceptional stability in the working environment of PEMFCs, such as acidic electrolytes, effectively prolonging the service life of the fuel cell.
3. Superb Mechanical Properties
The high strength and toughness of titanium fibers endow the platinum-coated sintered titanium felt with excellent mechanical properties. It can withstand the stresses and strains encountered during PEMFC operation, maintaining structural integrity.
4. Good Conductivity
The platinum coating not only enhances the corrosion resistance of the titanium fiber felt but also confers good conductivity. Platinum, a highly conductive noble metal, efficiently transmits the current generated in PEMFCs.
5. Balanced Hydrophilicity and Hydrophobicity
By controlling the surface properties of the platinum-coated sintered titanium fiber felt, a balance can be achieved between hydrophilicity and hydrophobicity. This facilitates effective transport of water and reactant gases in PEMFCs, preventing issues such as "water flooding" or "dry-out" phenomena.
Applications
The platinum-coated sintered titanium felt is primarily used as a raw material for the gas diffusion layer in PEMFCs. In PEMFCs, the gas diffusion layer is positioned between the catalyst layer and the bipolar plate, serving functions such as supporting the catalyst, transporting reactant gases, and removing generated water. The high porosity, good corrosion resistance, excellent mechanical properties, and conductivity of the platinum-coated sintered titanium felt provide a stable and efficient working environment for PEMFCs.
Advantages
1. High Performance
The platinum-coated sintered titanium felt combines the advantages of sintered titanium fiber felt and platinum, offering a high-performance solution for the gas diffusion layer in PEMFCs.
2. Longevity
Due to its excellent corrosion resistance, the platinum-coated sintered titanium felt maintains the stable operation of PEMFCs over extended periods, reducing maintenance costs and the frequency of replacements.
3. Wide Application Prospects
As PEMFCs gain increasing applications in various sectors such as transportation, energy, and military, the demand for platinum-coated sintered titanium felt is also growing steadily.
In summary, the platinum-coated sintered titanium felt, as an advanced raw material for the gas diffusion layer, offers high performance, longevity, and vast application potential, strongly supporting the commercialization of PEMFCs. With the continuous development and popularization of PEMFC technology, the application of platinum-coated sintered titanium felt is expected to expand even further.
