Smoltek Hydrogen, Heraeus advance ultra-low iridium PEM electrolysis electrodes, set 3,000-hour durability test

• Smoltek Nanotech Holding’s subsidiary Smoltek Hydrogen broadened its collaboration with Heraeus Precious Metals on ultra-low iridium PTEs for PEM electrolysis.
• Partners plan to start a 3,000-hour durability test this autumn to validate long-term stability under realistic operating conditions.
• Program targets iridium loading below 0.1 mg/cm² while maintaining electrolyzer efficiency, aiming to cut catalyst costs for green hydrogen.

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