Degradation of solid oxide fuel cell cathodes accelerated at a high water vapor concentration

S. H. Kim, K. B. Shim, C. S. Kim, J. T. Chou, T. Oshima, Yusuke Shiratori, Kohei Ito, Kazunari Sasaki

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The influence of water vapor in air on power generation characteristic of solid oxide fuel cells was analyzed by measuring cell voltage at a constant current density, as a function of water vapor concentration at 800° and 1000°. Cell voltage change was negligible at 1000°, while considerable voltage drop was observed at 800° accelerated at high water vapor concentrations of 20 wt % and 40 wt %. It is considered that La 2O3 formed on the (La0.8Sr02) 0.98MnO3 surface, which is assumed to be the reason for a large voltage drop.

Original languageEnglish
Pages (from-to)210111-210116
Number of pages6
JournalJournal of Fuel Cell Science and Technology
Volume7
Issue number2
DOIs
Publication statusPublished - Apr 1 2010

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Steam
Solid oxide fuel cells (SOFC)
Water vapor
Cathodes
Degradation
Electric potential
Power generation
Current density
Air
Voltage drop

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Mechanics of Materials
  • Renewable Energy, Sustainability and the Environment
  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology

Cite this

Degradation of solid oxide fuel cell cathodes accelerated at a high water vapor concentration. / Kim, S. H.; Shim, K. B.; Kim, C. S.; Chou, J. T.; Oshima, T.; Shiratori, Yusuke; Ito, Kohei; Sasaki, Kazunari.

In: Journal of Fuel Cell Science and Technology, Vol. 7, No. 2, 01.04.2010, p. 210111-210116.

Research output: Contribution to journalArticle

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AU - Shiratori, Yusuke

AU - Ito, Kohei

AU - Sasaki, Kazunari

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