TY - JOUR
T1 - Pr2Ni0.71Cu0.24Ga0.05O4-Sm0.2Ce0.8O1.9 composite film as active cathodic layer for intermediate temperature solid oxide fuel cells
AU - Kang, Byeong Su
AU - Inoishi, Atsushi
AU - Takagaki, Atsushi
AU - Ishihara, Tatsumi
N1 - Funding Information:
This study was financially supported by Grant-in-Aid for Specially Promoted Research (No. 16H06293 ) from MEXT, Japan through Japan Science Promotion Society.
Publisher Copyright:
© 2018
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Interlayer composite thin film of Pr2Ni0.71Cu0.24Ga0.05O4-Sm0.2Ce0.8O1.9 (PNCG-SDC) was deposited between the La0.9Sr0.2Ga0.8Mg0.2O3-δ (LSGM) thin film and Sm0.5Sr0.5CoO3-δ (SSC) powder cathode for increasing the cathodic activity for intermediate temperature solid oxide fuel cells (IT-SOFCs). It was found that cathodic overpotential was decreased by introduction of PNCG-SDC composite film resulting in the increased power density on both anode and electrolyte supported LSGM cell. The maximum power density of the anode supported cell using PNCG-SDC film was increased to 2.35 and 0.3 W/cm2 at 700 and 500 °C, respectively, which is higher than that of the cell without PNCG-SDC film. The activation energy estimated by cathodic overpotential indicated that PNCG-SDC film was effective for increasing the activity of active sites. Based on these results, PNCG-SDC composited film, which may be double columnar structure, was highly effective for increasing cathodic performance to oxygen reduction at intermediate temperature.
AB - Interlayer composite thin film of Pr2Ni0.71Cu0.24Ga0.05O4-Sm0.2Ce0.8O1.9 (PNCG-SDC) was deposited between the La0.9Sr0.2Ga0.8Mg0.2O3-δ (LSGM) thin film and Sm0.5Sr0.5CoO3-δ (SSC) powder cathode for increasing the cathodic activity for intermediate temperature solid oxide fuel cells (IT-SOFCs). It was found that cathodic overpotential was decreased by introduction of PNCG-SDC composite film resulting in the increased power density on both anode and electrolyte supported LSGM cell. The maximum power density of the anode supported cell using PNCG-SDC film was increased to 2.35 and 0.3 W/cm2 at 700 and 500 °C, respectively, which is higher than that of the cell without PNCG-SDC film. The activation energy estimated by cathodic overpotential indicated that PNCG-SDC film was effective for increasing the activity of active sites. Based on these results, PNCG-SDC composited film, which may be double columnar structure, was highly effective for increasing cathodic performance to oxygen reduction at intermediate temperature.
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U2 - 10.1016/j.ssi.2018.10.027
DO - 10.1016/j.ssi.2018.10.027
M3 - Article
AN - SCOPUS:85055643477
VL - 327
SP - 59
EP - 63
JO - Solid State Ionics
JF - Solid State Ionics
SN - 0167-2738
ER -