Characterization of solid oxide fuel cell using doped lanthanum gallate

Kiyoshi Kuroda, Ikiko Hashimoto, Kazunori Adachi, Jun Akikusa, Yoshitaka Tamou, Norikazu Komada, Tatsumi Ishihara, Yusaku Takita

Research output: Contribution to journalArticle

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Abstract

The power-generation characteristics and the electrode overpotential of the solid oxide fuel cell (SOFC) using doped lanthanum gallate perovskite-type oxide as and electrolyte were measured at temperatures below that of the typical SOFC using yttria-stabilized zirconia (YSZ) as an electrolyte. The oxide ion conductivity of the electrolyte, La0.8Sr0.2Ga0.8Mg0.15Co0.05O3-δ (LSGMC), was much higher than that of YSZ. A single cell using LSGMC of 205 μm in thickness showed a power density of 380 mW/cm2 at a current density of 0.5 A/cm2 and a temperature of 650 °C by using air and dry hydrogen as oxidant and fuel, respectively. The overpotential of anode was larger than that of the cathode and dominated the overall overpotential. The IR-drop measured by current-interrupting method was in good agreement with the value estimated from the electrical conductivity of the electrolyte. The experimental results indicate that LSGMC is a promising material as an electrolyte for a low-temperature SOFC. The characteristics of electrodes are further discussed in terms of the composition and particle size of the starting powders.

Original languageEnglish
Pages (from-to)199-208
Number of pages10
JournalSolid State Ionics
Volume132
Issue number3
Publication statusPublished - Jul 2 2000
Externally publishedYes

Fingerprint

gallates
Lanthanum
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
lanthanum
Electrolytes
electrolytes
Yttria stabilized zirconia
yttria-stabilized zirconia
Oxides
Electrodes
electrodes
oxides
Oxidants
Powders
Perovskite
Temperature
Power generation
radiant flux density
Hydrogen

All Science Journal Classification (ASJC) codes

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

Cite this

Kuroda, K., Hashimoto, I., Adachi, K., Akikusa, J., Tamou, Y., Komada, N., ... Takita, Y. (2000). Characterization of solid oxide fuel cell using doped lanthanum gallate. Solid State Ionics, 132(3), 199-208.

Characterization of solid oxide fuel cell using doped lanthanum gallate. / Kuroda, Kiyoshi; Hashimoto, Ikiko; Adachi, Kazunori; Akikusa, Jun; Tamou, Yoshitaka; Komada, Norikazu; Ishihara, Tatsumi; Takita, Yusaku.

In: Solid State Ionics, Vol. 132, No. 3, 02.07.2000, p. 199-208.

Research output: Contribution to journalArticle

Kuroda, K, Hashimoto, I, Adachi, K, Akikusa, J, Tamou, Y, Komada, N, Ishihara, T & Takita, Y 2000, 'Characterization of solid oxide fuel cell using doped lanthanum gallate', Solid State Ionics, vol. 132, no. 3, pp. 199-208.
Kuroda K, Hashimoto I, Adachi K, Akikusa J, Tamou Y, Komada N et al. Characterization of solid oxide fuel cell using doped lanthanum gallate. Solid State Ionics. 2000 Jul 2;132(3):199-208.
Kuroda, Kiyoshi ; Hashimoto, Ikiko ; Adachi, Kazunori ; Akikusa, Jun ; Tamou, Yoshitaka ; Komada, Norikazu ; Ishihara, Tatsumi ; Takita, Yusaku. / Characterization of solid oxide fuel cell using doped lanthanum gallate. In: Solid State Ionics. 2000 ; Vol. 132, No. 3. pp. 199-208.
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