LSM-YSZ Cathode with Infiltrated Cobalt Oxide and Cerium Oxide Nanoparticles

✍ Scribed by N. Imanishi; R. Ohno; K. Murata; A. Hirano; Y. Takeda; O. Yamamoto; K. Yamahara

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 501 KB
• Volume: 9
• Category: Article
• ISSN: 1615-6846
• DOI: 10.1002/fuce.200800090

✦ Synopsis

Abstract

To improve the La~0.8~Sr~0.2~MnO~3~ (LSM) –8 mol‐%Y~2~O~3~‐ZrO~2~ (YSZ) cathode performance of intermediate temperature solid oxide fuel cells (SOFC), Co~3~O~4~ and CeO~2~ nanoparticles were infiltrated into the cathode. Co‐infiltration of these oxide particles drastically enhanced the cell performance between 800 and 600 °C. The infiltrated CeO~2~ suppressed the aggregation of nanoparticle Co~3~O~4~, resulting in the high catalytic activity of the nanoparticle Co~3~O~4~ for oxygen reduction at intermediate temperatures. The anode‐supported SOFC with Co~3~O~4~ and CeO~2~ co‐infiltrated LSM‐YSZ cathode at 700 °C showed the high specific power density of 0.58 W cm^–2^ at 0.7 V.