Titanium Microporous Layer, 0.4mm

Estimated to ship on Jun 7th.

Titanium Microporous Layer is manufactured from sintered Grade 2 titanium powder and has a continuous three-dimensional foam-like structure. Use of micron sized titanium powder establishes a very smooth and fine porosity surface for this product. While titanium based frit style products are predominantly used in PEM electrolyzers as the metallic diffusion layers, anion exchange membrane water electrolyzers (AEMWE) can greatly benefit from the use of titanium based metallic diffusion layers such as Titanium Microporous Layer 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 Microporous Layer 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 Microporous Layer / frit as the anode and cathode diffusion layer. Furthermore, the pristine titanium frit / MPL 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 Microporous Layer / frit 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: ~30 %

      Contact Resistance: ~6 milliOhm.cm2

·       Surface roughness: ~5 micrometers

·       Tensile Strength: >35 MPa

·       Bending Strength: >30 MPa

·       Compression Ratio @ 3MPa: <5%

·       Effective Contact Area: >50%

·      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