Pr 2 Ni 0.71 Cu 0.24 Ga 0.05 O 4 -Sm 0.2 Ce 0.8 O 1.9 composite film as active cathodic layer for intermediate temperature solid oxide fuel cells

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Abstract

Interlayer composite thin film of Pr 2 Ni 0.71 Cu 0.24 Ga 0.05 O 4 -Sm 0.2 Ce 0.8 O 1.9 (PNCG-SDC) was deposited between the La 0.9 Sr 0.2 Ga 0.8 Mg 0.2 O 3-δ (LSGM) thin film and Sm 0.5 Sr 0.5 CoO 3-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/cm 2 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.

Original languageEnglish
Pages (from-to)59-63
Number of pages5
JournalSolid State Ionics
Volume327
DOIs
Publication statusPublished - Dec 1 2018

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Composite films
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
composite materials
Anodes
radiant flux density
Thin films
Temperature
temperature
cell anodes
Powders
Electrolytes
thin films
cells
Cathodes
Activation energy
Oxygen
interlayers
anodes
cathodes

All Science Journal Classification (ASJC) codes

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

Cite this

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title = "Pr 2 Ni 0.71 Cu 0.24 Ga 0.05 O 4 -Sm 0.2 Ce 0.8 O 1.9 composite film as active cathodic layer for intermediate temperature solid oxide fuel cells",
abstract = "Interlayer composite thin film of Pr 2 Ni 0.71 Cu 0.24 Ga 0.05 O 4 -Sm 0.2 Ce 0.8 O 1.9 (PNCG-SDC) was deposited between the La 0.9 Sr 0.2 Ga 0.8 Mg 0.2 O 3-δ (LSGM) thin film and Sm 0.5 Sr 0.5 CoO 3-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/cm 2 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.",
author = "Kang, {Byeong Su} and Atsushi Inoishi and Atsushi Takagaki and Tatsumi Ishihara",
year = "2018",
month = "12",
day = "1",
doi = "10.1016/j.ssi.2018.10.027",
language = "English",
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T1 - Pr 2 Ni 0.71 Cu 0.24 Ga 0.05 O 4 -Sm 0.2 Ce 0.8 O 1.9 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

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Interlayer composite thin film of Pr 2 Ni 0.71 Cu 0.24 Ga 0.05 O 4 -Sm 0.2 Ce 0.8 O 1.9 (PNCG-SDC) was deposited between the La 0.9 Sr 0.2 Ga 0.8 Mg 0.2 O 3-δ (LSGM) thin film and Sm 0.5 Sr 0.5 CoO 3-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/cm 2 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 Pr 2 Ni 0.71 Cu 0.24 Ga 0.05 O 4 -Sm 0.2 Ce 0.8 O 1.9 (PNCG-SDC) was deposited between the La 0.9 Sr 0.2 Ga 0.8 Mg 0.2 O 3-δ (LSGM) thin film and Sm 0.5 Sr 0.5 CoO 3-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/cm 2 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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