Rational Design of Lower‐Temperature Solid Oxide Fuel Cell Cathodes via Nanotailoring of Co‐Assembled Composite Structures

• DOI: 10.1002/anie.201408210
• Publication Date: 2014-10-06T21:44:57Z
• Authors: Kang Taek Lee; Ashley A. Lidie; Hee Sung Yoon; Eric D. Wachsman
• Keywords: oxygen reduction reaction; solid oxide fuel cells; SOFC CATHODES; PERFORMANCE; 540; electrocatalysts; 01 natural sciences; 7. Clean energy; 0104 chemical sciences; REDUCTION; YSZ; OXYGEN-SURFACE EXCHANGE; PEROVSKITES; nanocomposites; FUNCTIONAL LAYER; co-assembly; ANODE; ELECTROLYTE

Abstract A novel in situ co‐assembled nanocomposite LSM‐Bi 1.6 Er 0.4 O 3 (ESB) (icn‐LSMESB) was obtained by conjugated wet‐chemical synthesis. It showed an enhancement of the cathode polarization at 600 °C >140 times relative to conventional LSM‐Y 0.08 Zr 0.84 1.92 (YSZ) cathodes and exceptional solid oxide fuel cell (SOFC) performance >2 W cm −2 below 750 °C. This demonstrates that this cost‐effective broadly applicable process provides new opportunities for energy storage conversion devices nanotailoring composite electrodes.