Nickel Fiber Felt with Microporous Layer, 0.4mm

Estimated to ship on Jun 7th.

Nickel Fiber Felt with Microporous Layer (MPL) is a novel metallic diffusion layer that mimics the carbon-based gas diffusion layer with MPL for its microstructure.  Nickel fiber felt section forms the macroporous side and MPL section of this product forms the front face facing membrane for its microstructure, density, and low surface roughness. Sintered nickel fiber felt section is made of nickel fibrous (fine wires with small diameter) and has a continuous three-dimensional mesh structure. MPL section is made from sintered nickel particles in a more dense form and a much better surface roughness in order to establish good electrical contact and porosity gradient from the MPL side to the back felt side, similar to carbon based gas diffusion layers with MPL used in the PEM fuel cells.

Key Applications in AEM Electrolyzers:

• Porous Transport Layer (PTL): Acts as the vital interface between the catalyst and flow field, transporting electrons, distributing reactants, and removing gases.
• Current Collector: Provides an excellent conductive pathway for electrons from the external power source to the cathode.
• Catalyst Support: Its high surface area makes the nickel fiber felt with MPL 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: 400um (75micron MPL + 325micron fiber felt layer)

·       Porosity: ~ 60 % (~30% for the microporous layer and ~ 65%for the fiber felt layer)

·      Compression Ratio @ 3MPa: <5%

·       Effective Contact Area: >50%

·       Surface Roughness: ~5 micrometers

      Ni Purity: >99%

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