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The EU project SUPREME seeks to develop PFAS-free membranes for PEM electrolyzers, crucial for green hydrogen production. Currently, BASF's 54-MW PEM electrolyzer in Ludwigshafen uses PFAS, which are environmentally persistent.

The project, led by the University of Southern Denmark, will explore alternative materials. Researchers aim to reduce iridium usage by 75% and achieve green hydrogen production costs of around €2 per kg. Other projects, including PROMISERS and developments in AEM technology, are also underway to address the PFAS issue in hydrogen production.