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PGM-free Electrodes for AEM and Alkaline Electrolysis - Catrode®

With Latent Drives' innovative electrochemical treatment process, they activate stainless steel electrodes to make Catrodes® which combine both catalyst and electrode as one homogeneous part, without additional ingredients.
Catrodes are PGM-free (Platinum Group Metal) robust high-performance products.
The production process is developed for high volume mass production at realistic costs – reducing the capital costs of Green Hydrogen.
The Catrode is a Ni-Fe catalyst. First, the electrochemical surface area is increased then chromium is removed, and nickel is migrated and exposed on the surface of the stainless steel felt to produce a nickel iron catalytic surface layer.
The catalyst layer is formed on stainless steel felt which acts as both the Catalyst, Electrode and Gas diffusion layer combined.
Catrodes are 0.6mm thick with an active area of 200 cm² as standard but different thickness and areas could be treated as a custom request.
PGM free Catrodes performance in OER is comparable with state-of-the-art precious metal catalysts such as platinum and iridium and significantly surpasses the performance of nickel electrodes at a much-reduced cost.
Catrodes exhibit a stable performance below 1.58V RHE at 0.2A/cm2 at 50°C for 22 hours run in an ElyFlow test cell with an active area of 10 cm² compared to the overpotential of a commercially available Catalysed Nickel foam which reached 1.69V RHE.
The PGM-free Electrodes are designed to be run wet i.e. with liquid electrolyte in contact with the Catrode and membrane. Not intended for use with Nafion membranes.
Key features

Suitable for AEM and Alkaline Electrolysis
PGM-free (Platinum Group Metal) robust high-performance products
Developed for high volume mass production at realistic costs
Catrode is a Ni-Fe catalyst
Available in different thickness and areas as a custom request
Comparable with metal catalysts such as platinum and iridium and significantly surpasses the performance of nickel electrodes at a much-reduced cost
PGM-free Electrodes for AEM and Alkaline Electrolysis - Catrode®_2

Application areas

For alkaline water electrolysis, with either AEM or Zero Gap designs.
For use with Potassium Hydroxide (KOH) electrolyte in concentrations from 01.M to 5M.
Catrodes were developed to be used as anodes but can also be used as cathodes in an alkaline electrolyser.
Catrodes may also have potential to be used in batteries and fuel cell technology but after mutual collabaration with Latent Drive.
Use cases

Catrodes are being used as the combined gas diffusion layer and catalyst in a European electrolyser startup.
Catrodes in the form of treated stainless steel sheet is also being developed for a customer.
Contact us

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