Composite cathodes composed of NdBa0.5Sr0.5Co 2O5+δ and Ce0.9Gd0.1O 1.95 for intermediate-temperature solid oxide fuel cells
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- Composite cathodes composed of NdBa0.5Sr0.5Co 2O5+δ and Ce0.9Gd0.1O 1.95 for intermediate-temperature solid oxide fuel cells
- Kim, Jiyoun; Seo, Won-Yong; Shin, Jeeyoung; Liu , Meilin; Kim, Guntae
- Composite cathode; Electrochemical behaviour; Intermediate temperature solid oxide fuel cell; IT-SOFCs; Oxygen Reduction; Triple phase boundary
- Issue Date
- ROYAL SOC CHEMISTRY
- JOURNAL OF MATERIALS CHEMISTRY A, v.1, no.3, pp.515 - 519
- 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.
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