Exceptionally High‐Performance Reversible Solid Oxide Electrochemical Cells with Ultrathin and Defect‐Free Sm_0.075Nd_0.075Ce_0.85O_2‐δ Interlayers (Adv. Funct. Mater. 49/2022)

Solid Oxide Electrochemical Cells In article number 2207725, Kang Taek Lee, Ha-Ni Im, and Hyeongmin Yu, report the fabrication of a highly conductive, ultra-thin (250 nm), and defect-free Sm0.075Nd0.075Ce0.85O2−δ (SNDC) interlayer via readily processable gelatin-assisted deposition. The solid oxide electrochemical cells (SOCs) with this SNDC interlayer exhibited exceptionally high electrochemical performances both in the fuel cell (3.34 W cm−2) and electrolysis mode (2.1 A cm−2 at 1.3V) at 750 °C.