Cover Feature: Nanoscopic Combination of Edge and Flat Planes in the Active Site for Oxygen Reduction and Evolution (Eur. J. Inorg. Chem. 42/2019)

An iron-containing carbonaceous flat plane was enriched with edges by substrate fine etching and metal oxide loading, resulting in substantial enhancement of the catalytic activity for the oxygen reduction and evolution, which was fundamentally shown using the highly oriented pyrolytic graphite basal plane as the substrate. The evolution close to the standard electrode potential was elucidated by a mechanism involving the nanoscopic edge-flat plane combination.