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LSM‐YSZ Cathode with Infiltrated Cobalt Oxide and Cerium Oxide Nanoparticles
Author(s) -
Imanishi N.,
Ohno R.,
Murata K.,
Hirano A.,
Takeda Y.,
Yamamoto O.,
Yamahara K.
Publication year - 2009
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.200800090
Subject(s) - cathode , cerium oxide , yttria stabilized zirconia , materials science , nanoparticle , oxide , chemical engineering , anode , cobalt oxide , solid oxide fuel cell , cobalt , oxygen , inorganic chemistry , nanotechnology , electrode , cubic zirconia , chemistry , composite material , metallurgy , ceramic , organic chemistry , engineering
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.