Résumé
This experiment aims at elucidating the complex structure-activity-stability relationship driving the high performance of hollow iridium-copper (IrCu) aerogel catalyst for the oxygen evolution reaction (OER) at proton exchange water electrolyzer (PEMWE) anode. The proposal relies on the use of high energy X-ray total scattering measurements in operando conditions, using a recently built X-ray transparent PEMWE cell and its test station apparatus available at the ID31 beamline of the ESRF