Recycalyse - New Sustainable and Recyclable Catalytic Materials for Proton Exchange Membrane Electrolysers

Within the Recycalyse project different research organization and industrial partners worked together to develop catalysts for the oxygen evolution reaction for proton exchange membrane electrolysis that reduce the use of critical raw materials. The catalysts are applied to polymer electrolyte membranes via a direct coating process and tested both in single cells and at stack level. In order to reduce the dependence on material imports in Europe in the long term, recycling is considered for the catalysts, electrodes and the entire system. The article describes the development of catalysts with reduced iridium loading for proton exchange membrane electrolysis. Development steps over the entire life cycle are considered and the effects on the sustainability of the hydrogen economy are discussed. image