Dual-site La/Ni substitution stabilizes cubic perovskite SrCoO3-δ for efficient oxygen evolution.
SrCoO3-δ has been widely regarded as a promising electrocatalyst for the oxygen evolution reaction (OER) owing to its superior structural tunability and compositional flexibility. However, the cubic perovskite (CP) phase of SrCoO3-δ is difficult to stabilize under ambient pressure, and single-site substitution is insuf...