Titanium Fiber Felt, 0.4mm

Estimated to ship on Jun 7th. 

Titanium Fiber Felt is a sintered fiber felt made of Grade 2 Titanium fibrous (fine wires with small diameter) and has a continuous three-dimensional mesh structure. While titanium based fiber felts are predominantly used in PEM electrolyzers as the metallic diffusion layers, anion exchange membrane water electrolyzers (AEMWE) greatly benefits from the use of titanium based metallic diffusion layers since the concentration of the alkaline electrolytes (such as NaOH or KOH) in AEMWE systems is in the range of 0-1 Molar. With such low concentrations, titanium fiber felt is expected to work great because of its chemical stability. For further stability and corrosion protection, this product can also be platinized using the methods available in the literature to further improve the longevity.

PEM electrolyzer cells with solid acid membranes such as Nafion, Aquivion, and any other perfluorosulfonic acid (PFSA) membranes and alkaline electrolyzers with anion exchange membranes can utilize titanium fiber felt as the anode and cathode diffusion layer. Furthermore, the pristine titanium fiber felt can also be catalyst coated with the appropriate anode and cathode catalyst in order to be used as the anode and/or cathode electrodes.

Key Applications in PEM/AEM Electrolyzers:

• Porous Transport Layer (PTL): Acts as the vital interface between the anode and cathode catalysts and their respective flow fields, transporting electrons, distributing reactants, and removing gases.
• Current Collector: Provides an excellent conductive pathway for electrons from the external power source to the electrodes of the electrochemical cell.
• Catalyst Support: Its high surface area makes the titanium fiber felt to be suitable for coating with the respective hydrogen evolution reaction (HER) and Oxygen evolution reaction (OER) electrocatalyst by using the commercially available deposition methods. 

Product specifications:

·       Thickness: 400 micrometers

·       Porosity: ~ 55 %

·       Tensile Strength: >60 MPa

·       Bending Strength: >40 MPa

·       Compression Ratio @ 3MPa: <10%

·       Surface Roughness: ~15 micrometers

Standard availability is 10×10cm and 20×20cm sheet. Please let us know if you want different sizes or other requests at info@electrohy.com