TY - GEN
T1 - Effect of water vapor and SOx in air on the cathodes of solid oxide fuel cells
AU - Kim, Seon Hye
AU - Ohshima, Toshihiro
AU - Shiratori, Yusuke
AU - Itoh, Kohei
AU - Sasaki, Kazunari
PY - 2008/9/29
Y1 - 2008/9/29
N2 - The influence of chemical species, water vapor and SOx, included in air on the voltage drop of SOFCs was studied. La2O3 was formed on the surface of cathode and caused the significant voltage drop of cells under high water vapor concentrations at 800°. The voltage drop of cells also occurred with SO2 in air but was recovered with supplying SO 2-free air into the cells. It was considered that the cell voltage drop caused by SOx was due to the adsorption of sulfur and/or the formation of sulfur compounds on the surface of cathodes.
AB - The influence of chemical species, water vapor and SOx, included in air on the voltage drop of SOFCs was studied. La2O3 was formed on the surface of cathode and caused the significant voltage drop of cells under high water vapor concentrations at 800°. The voltage drop of cells also occurred with SO2 in air but was recovered with supplying SO 2-free air into the cells. It was considered that the cell voltage drop caused by SOx was due to the adsorption of sulfur and/or the formation of sulfur compounds on the surface of cathodes.
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M3 - Conference contribution
AN - SCOPUS:52349098871
SN - 9781605110158
T3 - Materials Research Society Symposium Proceedings
SP - 131
EP - 137
BT - Proceedings - CIS Workshops 2007, 2007 International Conference on Computational Intelligence and Security Workshops, CISW 2007
T2 - Life-Cycle Analysis for New Energy Conversion and Storage Systems
Y2 - 26 November 2007 through 27 November 2007
ER -