Fuel impurity tolerance of solid oxide fuel cells

K. Sasaki, S. Adachi, K. Haga, M. Uchikawa, J. Yamamoto, A. Iyoshi, J. T. Chou, Y. Shiratori, K. Itoh

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

37 被引用数 (Scopus)

抄録

While SOFCs are the most flexible fuel cells with respect to fuel selection, fuel impurities in practical SOFC fuels can cause degradation of electrodes and thus electrochemical performance. The understanding of fuel impurity poisoning and the increase in tolerance are therefore of technological relevance for SOFC commercialization. Along with thermochemical calculations on the stability of typical fuel impurities under SOFC operational conditions, fuel impurity poisoning of SOFCs is analyzed by using various impurity-containing fuel gases with respect to operational temperature, type and concentration of impurities, fuel composition, and steam-to-carbon ratio. We have revealed that poisoning depends on operational conditions and types of fuels and impurities. The poisoning effect becomes significant for internal-reforming SOFCs operated with humidified methane-based fuels. Poisoning mechanisms are discussed, based on cell voltage and durability data.

本文言語英語
ホスト出版物のタイトルECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
ページ1675-1683
ページ数9
1 PART 2
DOI
出版ステータス出版済み - 12 1 2007
イベント10th International Symposium on Solid Oxide Fuel Cells, SOFC-X - , 日本
継続期間: 6 3 20076 8 2007

出版物シリーズ

名前ECS Transactions
番号1 PART 2
7
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

その他

その他10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
国/地域日本
Period6/3/076/8/07

All Science Journal Classification (ASJC) codes

  • 工学(全般)

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