Phys.org  December 6, 2024 An international team of researchers (Germany, Spain) investigated the electronic and structural behavior of the newly developed oxygen evolution reaction (OER) Kopernikus P2X amorphous IrOx/TiO2. It was compared to the current commercial benchmark catalyst: crystalline IrO2/TiO2, Umicore Elyst. Analysis of the redox behavior of the catalysts showed distinct electronic differences between the amorphous and crystalline oxides. They derived property–structure relationships under equivalent OER conditions for materials exhibiting distinctly different activities and found that P2X IrOx/TiO2 catalyst underwent substantial electronic structure changes, with larger reduction in the Ir–O bond lengths compared to that of the commercial benchmark […]