Hydrogen, a key player in the energy transition, is produced using electrolyzers containing materials essential for its production. Researchers have now achieved success in recovering these critical raw materials, such as platinum, rare earths, and nickel, which serve as catalysts for green hydrogen production. The process involves fine particle separation techniques like liquid-liquid particle extraction and agglomeration flotation, enabling the recovery of up to 90% of the functional materials. This sustainable approach ensures the efficient separation of hydrophobic and hydrophilic catalysts, facilitating their reuse in the recycling loop. The initiative by the Helmholtz Institute Freiberg (HIF) underscores the importance of sustainable resource use in hydrogen technology. By focusing on recovering valuable materials from electrolyzers, the researchers are contributing significantly to the advancement of green hydrogen production and addressing the critical raw material dependency associated with catalysts.