H2U Technologies announces test results

H2U's new durability test results represent a significant milestone and address supply chain bottlenecks for sustainable hydrogen production with proton exchange membrane (PEM) electrolysers.

Discovering non-iridium catalysts for commercial applications has been challenging, as novel materials often degrade rapidly under the harsh acidic conditions of the oxygen evolution reaction (OER). For perspective, the best iridium-free catalysts known to date offer lifetimes of approximately 1000 to 1400 hours. With a baseline of over 4000 hours of continuous operation thus far, H2U's iridium-free catalysts, tested at 10x higher current density, are demonstrating projected lifetimes of over 25 000 hours. H2U catalysts are projected to last at least six years for targeted applications, such as in PEM electrolysers paired with curtailed renewables.

H2U's innovative catalysts are cost-effective and more readily available than iridium. Utilising these affordable alternatives expands the possibilities for electrolyser stack design, enabling H2U to explore avenues unrestricted by ultra-thin catalyst layers and low usage of catalysts. H2U believes this flexibility should significantly reduce capital expenses, producing more affordable delivered hydrogen.

Read the article online at: https://www.globalhydrogenreview.com/hydrogen/28092023/h2u-technologies-announces-test-results/