dc.citation.conferencePlace |
KO |
- |
dc.citation.conferencePlace |
대전 |
- |
dc.citation.title |
2012 한국 세라믹 학회 추계 연구발표회 |
- |
dc.contributor.author |
Kim, Guntae |
- |
dc.contributor.author |
Jun, Areum |
- |
dc.contributor.author |
Kim, Junyoung |
- |
dc.contributor.author |
Park, Seonhye |
- |
dc.contributor.author |
Shin, Jeeyoung |
- |
dc.date.accessioned |
2023-12-20T01:39:37Z |
- |
dc.date.available |
2023-12-20T01:39:37Z |
- |
dc.date.created |
2013-07-17 |
- |
dc.date.issued |
2012-10-18 |
- |
dc.description.abstract |
Cation ordered perovskites have been recognized as advanced cathode materials for intermediate-temperature solid oxide fuel cells (IT-SOFCs). This study focuses on the effects of Sr substitution on crystal characteristics, electrical properties, and electrochemical performance of SmBa1-xSrxCo2O5+δ (x = 0, 0.25, 0.5, 0.75, and 1.0) as an IT-SOFC cathode material. The electrical conductivity increases with increasing Sr content due to the increased interstitial oxygen and electronic holes. The ASRs of SmBa1-xSrxCo2O5+δ decrease with Sr content up to x = 0.75 and increase suddenly for x = 1, with the lowest ASR of 0.138 Ωcm2 at 600o C for x = 0.75. A Ni-GDC anode-supported cell is fabricated to evaluate the electrochemical performance of SmBa1-xSrxCo2O5+δ cathode material. The maximum power density is 1.039 Wcm−2 for x = 0.75 explaining faster oxygen diffusion compared with the other samples. These results indicate that SmBa1-xSrxCo2O5+δ is optimized at x = 0.75 in terms of the performance for IT-SOFCs. |
- |
dc.identifier.bibliographicCitation |
2012 한국 세라믹 학회 추계 연구발표회 |
- |
dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/43235 |
- |
dc.language |
영어 |
- |
dc.publisher |
한국 세라믹 학회 |
- |
dc.title |
Effect of Sr substitution on the Electrochemical Properties of Layered SmBa1-xSrxCo2O5+δ Perovskite Oxides for Intermediate-Temperature Solid Oxide Fuel Cells |
- |
dc.type |
Conference Paper |
- |
dc.date.conferenceDate |
2012-10-18 |
- |