Composite cathodes composed of NdBa0.5Sr0.5Co 2O5+?? and Ce0.9Gd0.1O 1.95 for intermediate-temperature solid oxide fuel cells
- Kim, Jiyoun
- Seo, Won-Yong
- Shin, Jeeyoung
- Liu , Meilin
- Kim, Guntae
Publication date
July 2014
DOI Publisher
Royal Society of Chemistry (RSC) ISSN
2050-7488 Journal
Journal of Materials Chemistry A Citation count (estimate)
1Abstract
The electrochemical properties of a composite cathode composed of NdBa0.5Sr0.5Co2O5+delta (NBSCO) and Ce0.9Gd0.1O1.95 (GDC) are investigated for intermediate-temperature solid oxide fuel cells (IT-SOFCs). In particular, cells based on NBSCO-GDC composite cathodes demonstrated higher performance than those based on a NBSCO cathode, probably due to the extended triple phase boundary (TPB) length. The oxygen reduction mechanism on the NBSCO-GDC composite cathodes is proposed to explain the superior electrochemical behaviour.close14
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