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

31 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
Pages (from-to)A140-A143
JournalElectrochemical and Solid-State Letters
Volume6
Issue number7
DOIs
Publication statusPublished - Jul 1 2003

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Electrophoretic fabrication and cell performance of dense Sr- and Mg-doped LaGaO<sub>3</sub>-based electrolyte films'. Together they form a unique fingerprint.

  • Cite this