Sulfur tolerance of solid oxide fuel cells

K. Sasaki, K. Susuki, A. Iyoshi, M. Uchimura, N. Imamura, H. Kusaba, Y. Teraoka, H. Fuchino, K. Tsujimoto, Y. Uchida, N. Jingo

研究成果: 会議への寄与タイプ学会誌査読

21 被引用数 (Scopus)

抄録

Influence of H2S fuel impurity on power generation characteristics of SOFCs has been analyzed by measuring cell voltage at a given current density, as a function of operational temperature, H2S concentration, and fuel gas composition. Reversible cell voltage drop was observed around 1000°C, but fatal irreversible degradation occurred at lower operational temperatures, at higher H2S concentrations, and at lower fuel H2/CO ratios. Sulfur tolerance of SOFCs improved by using Sc2O3-doped ZrO2 instead of Y2O 3-doped ZrO2 as electrolyte and/or as electrolyte component in the anode cermet. It has been found that H2S poisoning consists of at least two stages, i.e. an initial cell voltage drop within a few minutes to a metastable cell voltage, followed by a gradual larger cell voltage drop associated with the agglomeration of Ni particles.

本文言語英語
ページ1267-1274
ページ数8
出版ステータス出版済み - 2005
イベント9th International Symposium on Solid Oxide Fuel Cells, SOFC IX - Quebec, カナダ
継続期間: 5月 15 20055月 20 2005

その他

その他9th International Symposium on Solid Oxide Fuel Cells, SOFC IX
国/地域カナダ
CityQuebec
Period5/15/055/20/05

!!!All Science Journal Classification (ASJC) codes

  • 工学一般

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