Vacuum-sintered pure titanium microfiber felt (0.2–1.0 mm) and platinized Ti porous transport layers (PTLs) engineered for PEM water electrolyzers, regenerative fuel cells, and corrosive filtration.
In Proton Exchange Membrane Water Electrolyzers (PEMWE), the anode Porous Transport Layer (PTL / LGDL) operates at >1.8–2.2 V in acidic wet-oxygen environments that instantly dissolve carbon paper (Toray GDL) and stainless steel. Vacuum-sintered non-woven micron titanium fiber felt combines 55%–75% open porosity for simultaneous liquid-water feed and O2 bubble evacuation with smooth, non-puncturing membrane contact and high electrical/thermal conductivity.
Available bare or electroplated/PVD-coated with ultra-thin platinum (Pt) or IrO2 protective layers to eliminate TiO2 interfacial contact resistance over multi-thousand-hour stack tests, plus sintered Ti powder plates (0.5–5.0 mm).
| Property / Metric | Nominal Reference Value (Grade Dependent) |
|---|---|
| Titanium Purity | ≥99.7% pure Ti microfibers (metallurgically diffusion-bonded) |
| Standard PTL Thicknesses | 0.20, 0.25, 0.30, 0.35, 0.40, 0.50, 1.0 mm (±0.02 mm) |
| Controlled Porosity | 50%–60%, 60%–70%, or 70%–78% |
| Equivalent Fiber / Pore Size | 15–40 µm fiber web; graded fine-contact surface layer optional |
| Protective Coatings | Uncoated or 0.1–1.0 µm uniform Pt / Au / IrO2 coating |
Reference values reflect typical sintered, fused, or wrought grades. Exact batch test figures are confirmed on your written quotation and accompanying lot Certificate of Analysis.
Specify felt vs. sintered powder plate, exact thickness (e.g., 0.25 mm or 0.40 mm), target porosity % (e.g., 65%), uncoated vs. Pt-coated (specify single- or double-side Pt thickness in µm or mg/cm²), active cell area L×W (e.g., 5×5 cm, 10×10 cm, 20×30 cm), and sheet quantity.
Include target quantity, destination country/postal code for express air freight calculation, and any special cleanroom bagging or certification requests.
Prepare Sintered Titanium Fiber Felt & Porous Transport Layers RFQ ↗Complementary furnaceware, substrates, PVD consumables, and refractory hardware frequently ordered together.
TB-BAT-FMHigh-porosity (95%–98%) 3D reticulated open-cell nickel, copper, and Fe-Ni metal foams in lab sheets, rolls, and pre-punched coin-cell discs for battery, supercapacitor, and electrocatalysis R&D.
TB-TI-GRCommercially pure (Grade 1/2), Ti-6Al-4V (Grade 5), and 99.99% high-purity titanium foils, plates, rods, woven/expanded mesh, and MMO-coated electrochemical anodes.
TB-GR-PLPrecision ground fine-grain and isostatic graphite sheets, setter plates, EDM blocks, rods, and impermeable resin-impregnated bipolar plates.
TB-GR-FLTHigh-purity graphitized soft felt rolls, CNC-machined rigid graphite insulation cylinders/boards, and activated battery electrode felts for vacuum furnaces and energy storage.
Submit your purity grade, geometry, quantity, and documentation requirements. Every order includes the producing mill's batch Certificate of Analysis (COA) and pre-shipment dimensional verification.