Hausmann, J. NiklasKhalaniya, Roman A.Das, ChittaranjanRemy-Speckmann, InaBerendts, StefanShevelkov, Andrei V.Driess, MatthiasMenezes, Prashanth W.2021-03-112021-03-112021-01-220022-4936https://depositonce.tu-berlin.de/handle/11303/12791http://dx.doi.org/10.14279/depositonce-11591Herein, we report on intermetallic iron germanide (Fe6Ge5) as a novel oxygen evolution reaction (OER) precatalyst with a Tafel slope of 32 mV dec−1 and an overpotential of 272 mV at 100 mA cm−2 in alkaline media. Furthermore, we uncover the in situ formation of a core–shell like structure that slowly collapses under OER conditions.en540 Chemie und zugeordnete Wissenschaftenoxygen evolution reactionintermetallic iron germanidecore–shellArticle1364-548X