Intermediate temperature solid oxide fuel cell using (La,Sr)(Co,Fe)O3-based cathodes

Wi Heon Kim, Hwa Seob Song, Jooho Moon, Hae Won Lee

Research output: Contribution to journalArticlepeer-review

96 Citations (Scopus)


Anode-supported SOFCs involving LSCF (La0.6Sr0.4Co0.2Fe0.8O3-δ)-based cathodes are fabricated utilizing GDC interlayer on 8YSZ electrolyte for intermediate temperatures. The GDC interlayer between the LSCF cathode and YSZ electrolyte is used to prevent formation of insulating phases such as SrZrO3 or La2Zr2O7. The cell performance with the GDC interlayer was ten times better than the one without GDC at operating temperature of 750 °C. However, the observed power density (370 mW/cm2) was lower than the value reported in the literature. This can be attributed to an imperfect GDC interlayer in the present study. The GDC interlayer was porous and non-uniform, so that adverse interfacial reactions could not be completely prevented. The chemical incompatibility at the interface was evaluated by SEM and EPMA, which explains the dependence of cell performance on sintering temperatures of the GDC interlayer.

Original languageEnglish
Pages (from-to)3211-3216
Number of pages6
JournalSolid State Ionics
Issue number35-36
Publication statusPublished - 2006 Nov 30

Bibliographical note

Funding Information:
This work was supported by the Core technology Development Program for Fuel Cell of Ministry of Science and Technology and Korea Institute of Science and Technology Evaluation and Planning. It was also partially supported by the National Research Laboratory (NRL) Program of Korea Science and Engineering Foundation.

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


Dive into the research topics of 'Intermediate temperature solid oxide fuel cell using (La,Sr)(Co,Fe)O3-based cathodes'. Together they form a unique fingerprint.

Cite this