Colossal Dielectric Perovskites of Calcium Copper Titanate (CaCu3Ti4O12) with Low‐Iridium Dopants Enables Ultrahigh Mass Activity for the Acidic Oxygen Evolution Reaction (Adv. Sci. 16/2023)

Oxygen Evolution Reaction In article number 2207695, Byung‐Hyun Kim, HyukSu Han, and co‐workers develop an iridium doped calcium copper titanate exhibiting ultrahigh mass activity for acidic oxygen evolution reaction (OER). This work reposts the design of electrocatalysts for OER using colossal dielectric perovskite oxide. [Image: see text]