Microtubular SOFC using doped LaGaO3 electrolyte film prepared with dip coating method

Kohei Hosoi, Jong Eun Hong, Takaaki Sakai, Shintaro Ida, Tatsumi Ishihara

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Preparation of Microtubular cell using doped lanthanum gallate (LSGM) electrolyte with a dip coating and co-sintering process was studied. In order to suppress Ni diffusion from Ni-based anode substrate to LSGM electrolyte layer, Ti added La-doped ceria (Ti-LDC) was inserted as buffer layer. The amount of Ni diffused in LSGM electrolyte was investigated by EDX analysis as a function of sintering temperatures. It was found that sintering at 1350°C is suitable from the sintering density and the Ni diffusion. The cell sintered at 1350°C exhibited the higher power density than that of the conventional LSGM micro-tubular cell, even though a small amount of Ni diffusion was still observed at the Ti-LDC buffer layer/LSGM electrolyte interface. The microtubular cell with around 50μm thickness showed the open circuit potential higher than 1.0V and the maximum power density of 0.69, 0.31 and 0.12W/cm2 at 700, 600 and 500°C, respectively, were achieved.

Original languageEnglish
Pages (from-to)182-186
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume123
Issue number1436
DOIs
Publication statusPublished - Apr 1 2015

Fingerprint

Solid oxide fuel cells (SOFC)
Electrolytes
coating
sintering
Sintering
electrolytes
Coatings
Cerium compounds
Buffer layers
cells
radiant flux density
buffers
gallates
Lanthanum
lanthanum
Energy dispersive spectroscopy
Anodes
anodes
preparation
Networks (circuits)

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

Microtubular SOFC using doped LaGaO3 electrolyte film prepared with dip coating method. / Hosoi, Kohei; Hong, Jong Eun; Sakai, Takaaki; Ida, Shintaro; Ishihara, Tatsumi.

In: Journal of the Ceramic Society of Japan, Vol. 123, No. 1436, 01.04.2015, p. 182-186.

Research output: Contribution to journalArticle

Hosoi, Kohei ; Hong, Jong Eun ; Sakai, Takaaki ; Ida, Shintaro ; Ishihara, Tatsumi. / Microtubular SOFC using doped LaGaO3 electrolyte film prepared with dip coating method. In: Journal of the Ceramic Society of Japan. 2015 ; Vol. 123, No. 1436. pp. 182-186.
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