Fabrication of an anode-supported Sofc with a sol-gel coating method for a mixed-gas fuel cell

N. X P Vo, Sung Pil Yoon, SukWoo Nam, Jonghee Han, Tae Hoon Lim, Seong A. Hong

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Abstract

An anode-supported type solid oxide fuel cell (SOFC) is a promising structure resulting in a very high performance because it consists of a very thin electrolyte. In the preliminary stage, we have succeeded in the fabrication of Samaria-Doped Ceria (SDC) thin film on a porous Ni-Al substrate using a sol-gel coating technique. The thin electrolyte film binds the substrate well and a single cell made with the SDC thin-film electrolyte and porous LSM cathode exhibited a good performance in a mixed-gas condition, even at intermediate temperatures. The single cell, consisting of 20 μm thin SDC electrolytes, the porous Ni-Al anode substrate, and a LSM cathode, exhibited an open circuit voltage of 0.82V and a maximum power density of 0.31 W cm-2 at 700°C with humidified methane and air mixtures. This cell also generated an open circuit voltage of about 1.1V and a maximum power density of 0.34 Wcm -2 at 600°C with humidified hydrogen as the fuel and air as the oxidant.

Original languageEnglish
Pages (from-to)455-461
Number of pages7
JournalKey Engineering Materials
Volume277-279
Issue numberI
Publication statusPublished - 2005 Dec 1

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Keywords

  • Anode-supported SOFC
  • SDC thin film
  • Sol-gel coating method
  • Thin electrolyte

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Ceramics and Composites

Cite this

Vo, N. X. P., Yoon, S. P., Nam, S., Han, J., Lim, T. H., & Hong, S. A. (2005). Fabrication of an anode-supported Sofc with a sol-gel coating method for a mixed-gas fuel cell. Key Engineering Materials, 277-279(I), 455-461.