TY - GEN
T1 - PrBaCo2O5+δ-Sm0.5Sr0.5CoO3composite oxide as active cathode for intermediate-temperature solid oxide fuel cells
AU - Ishihara, Tatsumi
AU - Islamiyah, Syuaibatul
AU - Kluczny, Maksymilian
AU - Song, Jun Tae
AU - Takagaki, Atsushi
N1 - Funding Information:
Part of this study was financially supported by a Grant-in-Aid for specially promoted Research (no. 16H06293) from MEXT, Japan, and also from New Energy Industrial Development Organization (NEDO), Japan.
Publisher Copyright:
© 2021 Electrochemical Society Inc.. All rights reserved.
PY - 2021
Y1 - 2021
N2 - Cathodic performance of double perovskite oxide of PrBaCo2O5as an active catalyst for SOFC was investigated. Because delamination of PrBaCo2O5cathode is easily occurred by larger thermal expansion coefficient, mixing effects of PrBaCo2O5with another perovskite oxide were investigated using a LaGaO3-based electrolyte. Among the oxides mixed with PrBaCo2O5(PBCO), it was found that mixing Sm0.5Sr0.5CoO3(SSC) with PBCO shows the smallest cathodic overpotential and the most suitable for increase in cathodic activity. Increase in cathodic performance can be assigned to the high activity of oxygen dissociation on SSC and the fast oxide ion diffusivity in PBCO. Therefore, composite oxide of PBCO with SSC is highly active as cathode for SOFC at intermediate temperature.
AB - Cathodic performance of double perovskite oxide of PrBaCo2O5as an active catalyst for SOFC was investigated. Because delamination of PrBaCo2O5cathode is easily occurred by larger thermal expansion coefficient, mixing effects of PrBaCo2O5with another perovskite oxide were investigated using a LaGaO3-based electrolyte. Among the oxides mixed with PrBaCo2O5(PBCO), it was found that mixing Sm0.5Sr0.5CoO3(SSC) with PBCO shows the smallest cathodic overpotential and the most suitable for increase in cathodic activity. Increase in cathodic performance can be assigned to the high activity of oxygen dissociation on SSC and the fast oxide ion diffusivity in PBCO. Therefore, composite oxide of PBCO with SSC is highly active as cathode for SOFC at intermediate temperature.
UR - http://www.scopus.com/inward/record.url?scp=85111680211&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85111680211&partnerID=8YFLogxK
U2 - 10.1149/10301.1425ecst
DO - 10.1149/10301.1425ecst
M3 - Conference contribution
AN - SCOPUS:85111680211
T3 - ECS Transactions
SP - 1425
EP - 1432
BT - 17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
PB - IOP Publishing Ltd.
T2 - 17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
Y2 - 18 July 2021 through 23 July 2021
ER -