Arno Bergmann

TL;DR: The structurally reversible evolution of crystalline Co3O4 electrocatalysts during oxygen evolution reaction identified using advanced in situ X-ray techniques is reported, which combines the stability advantages of a controlled, stable crystalline material with high catalytic activity thanks to the structural flexibility of its active amorphous oxides.

TL;DR: This work presents a facile solvothermal route to control the synthesis of amorphous and crystalline cobalt iron oxides by controlling the crystallinity of the materials with changing solvent and reaction time and utilizes these materials as multifunctional catalysts for the unification of photochemical and electrochemical water oxidation as well as for the oxygen reduction reaction.

TL;DR: In this article, a thermally prepared Ir-Ni mixed oxide thin film catalysts for the electrochemical oxygen evolution reaction (OER) under highly corrosive conditions such as in acidic proton exchange membrane (PEM) electrolyzers and photoelectrochemical cells (PEC).

TL;DR: The flexible electronic structure of the surface Fe sites, and their synergy with nearest-neighbor M sites through formation of O-bridged Fe-M reaction centers, stabilize OER intermediates that are unfavorable on pure M-M centers and single Fe Sites, fundamentally accounting for the high catalytic activity of MFe LDHs.

TL;DR: This study highlights a novel, highly active oxygen evolution catalyst and provides novel important insights into the structure and performance of bimetallic oxide OER electrocatalysts in corrosive acidic environments.