Electrophoretic fabrication and cell performance of dense Sr- and Mg-doped LaGaO3-based electrolyte films

Motohide Matsuda, Osamu Ohara, Kenji Murata, Satoshi Ohara, Takehisa Fukui, Michihiro Miyake

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Dense films of (La, Sr)(Ga, Mg)O3 compound, known as a superior oxide ion conductor, were fabricated successfully by electrophoretic deposition of the ceramic powders on graphite substrates followed by sintering with controlled heating profile. Thickness of the electrolyte films was varied in a range of ca. 40-80 μm with the deposition time. Ion conductivities of the films thus fabricated were 1.80 × 10-2 S/cm at 600°C and 5.75 × 10-2 S/cm at 730°C, and were comparable to those of bulky specimens prepared in a conventional manner. A single cell was constructed on the lanthanum gallate based film with doped lanthanum cobaltite for a cathode and Ni-yittria-doped ceria for an anode. Maximum output power densities of 0.34 W/cm2 at 600°C and 0.50 W/cm2 at 700°C were attained, respectively.

Original languageEnglish
JournalElectrochemical and Solid-State Letters
Volume6
Issue number7
DOIs
Publication statusPublished - Jul 2003

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Electrolytes
electrolytes
Fabrication
Lanthanum
fabrication
cells
lanthanum
Ions
gallates
Graphite
Cerium compounds
Powders
Oxides
radiant flux density
sintering
Anodes
ions
Cathodes
anodes
Sintering

ASJC Scopus subject areas

  • Electrochemistry
  • Materials Science(all)

Cite this

Electrophoretic fabrication and cell performance of dense Sr- and Mg-doped LaGaO3-based electrolyte films. / Matsuda, Motohide; Ohara, Osamu; Murata, Kenji; Ohara, Satoshi; Fukui, Takehisa; Miyake, Michihiro.

In: Electrochemical and Solid-State Letters, Vol. 6, No. 7, 07.2003.

Research output: Contribution to journalArticle

Matsuda, Motohide ; Ohara, Osamu ; Murata, Kenji ; Ohara, Satoshi ; Fukui, Takehisa ; Miyake, Michihiro. / Electrophoretic fabrication and cell performance of dense Sr- and Mg-doped LaGaO3-based electrolyte films. In: Electrochemical and Solid-State Letters. 2003 ; Vol. 6, No. 7.
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