Oxygen Evolution Electrocatalysts: Self‐Assembled Ruddlesden–Popper/Perovskite Hybrid with Lattice‐Oxygen Activation as a Superior Oxygen Evolution Electrocatalyst (Small 20/2020)

In article number 2001204, Yinlong Zhu, Huanting Wang, and co-workers report a novel hybrid RP/P-LSCF consisting of a dominated Ruddlesden–Popper phase LaSr3Co1.5Fe1.5O10–δ (RP-LSCF) and second perovskite phase La0.25Sr0.75Co0.5Fe0.5O3–δ (P-LSCF), which is prepared by a facile one-pot self-assembly method, exhibiting exceptional oxygen evolution reaction activity due to surface lattice-oxygen activation triggered by strong metal oxygen-covalency and high oxygen-ion diffusion rate.