Welcome to the CYCLOPEM project website
Recycling & Reuse of Ionomers and Platinum Group Metals from Proton Exchange Membrane Water Electrolysers
Closing the Loop on Critical Raw Materials for Green Hydrogen
Green hydrogen is set to become a cornerstone of Europe's energy transition - and proton exchange membrane water electrolysers (PEMWE) will be at the heart of its large-scale production. Yet today's PEMWE technology depends on critical raw materials (CRMs) (e.g. Iridium (Ir), Fluorine, (F)), exposing the Hydrogen Economy to supply chain risks and environmental burdens that threaten its long-term sustainability and large scale deployment viability.
Our mission: make the materials behind green hydrogen as sustainable as the hydrogen itself.
We are developing a novel, low-impact approach to recovering CRM from PEMWE (e.g. at End-of-Life), and putting them straight back to work. By uniting computational modelling, materials chemistry, and electrochemical engineering, we optimise every step of the recovery–reuse–performance chain, aiming to demonstrate low-CRM, high-performance electrodes through innovative design and fabrication.
From recovery to redeployment
Our approach doesn't stop at recycling. Recovered materials are re-engineered into next-generation electrodes that match or exceed the performance of their virgin-material counterparts - proving that circularity and cutting-edge performance can go hand in hand. And because the challenge of CRM dependence extends well beyond electrolysis, our methods are designed to transfer to other electrochemical technologies, from fuel cells to the wider clean-tech landscape.

Why it matters
By embedding resilience and circularity into the hydrogen value chain, the project directly supports the ambitions of the EU Critical Raw Materials Act, the Net Zero Industry Act, and the European Green Deal - reducing cost, cutting environmental impact, and clearing the path for PEMWE deployment at the scale Europe's climate targets demand.
Sustainable materials. Resilient supply chains. Green hydrogen at scale.
Project Partners




