Performance of anode-supported proton-conducting solid oxide fuel cells with lanthanum-based thin bilayer electrolyte

H. Matsuo, G. Kojo, K. Sakata, Y. Matsuzaki, J. Otomo

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

4 被引用数 (Scopus)

抄録

La-doped ceria (LaxCe4−xO8−x/2: LDC) is one of the promising proton-conducting oxides applicable for electrolytes of proton-conducting solid oxide fuel cells because of its high chemical stability against CO2 and H2O. In this report, we investigate composition dependence of conductivity of LDC ceramics with 1.0 ≤ x ≤ 3.0. Single-phase LDC was obtained for x ≤ 2.6 and the LDC ceramics with x = 2.6 exhibited the highest conductivity. Cell performance of an anode-supported cell with an LDC (x = 2.6) single-layer thin-film electrolyte was also evaluated. Moreover, the effect of stacking La28-yW4+yO54+3y/2v2-3y/2 (LWO) electrolyte with the LDC electrolyte on cell performance was examined. The bilayer cells, in which the LDC and the LWO electrolytes were stacked, exhibited higher open-circuit voltage values than the LDC single-layer cell because of suppressed leakage currents in the electrolyte. The bilayer structure will be an effective cell design to obtain high-performance p-SOFCs.

本文言語英語
ホスト出版物のタイトルSolid Oxide Fuel Cells 16, SOFC 2019
編集者K. Eguchi, S. C. Singhal
出版社Electrochemical Society Inc.
ページ1019-1028
ページ数10
1
ISBN(電子版)9781607688747, 9781607688747
DOI
出版ステータス出版済み - 2019
外部発表はい
イベント16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, 日本
継続期間: 9月 8 20199月 13 2019

出版物シリーズ

名前ECS Transactions
番号1
91
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

会議

会議16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
国/地域日本
CityKyoto
Period9/8/199/13/19

!!!All Science Journal Classification (ASJC) codes

  • 工学一般

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