Scandium-Doped La0.8Sr0.2MnO3-δCathode Materials for Intermediate-Temperature Solid Oxide Fuel Cells

Abstract

Abstract: The Sc-doped LSM (La0.8Sr0.2Mn1-xScxO3-δ , x=0, 0.02, 0.05, and 0.1) as cathode materials for intermediate-tempera ture solid oxide fuel cells was synthesized using a modified Pechini method. The Sc -doped LSM-YSZ composite cathodes showed higher performance than the LSM-YSZ composite cathode at low operating temperatu re, which is primarily ascribed to the increase in the oxygen anionic vacancies resulted from the Sc partial substitution for Mn sites.

Key words: intermediate-temperature solid oxide fuel cell, scandium, La0.8Sr0.2MnO3-δ, composite cathode material, scandiumoxide, oxygen vacancy

YUE Xiangling;LIU Lin;ZHANG Min;YANG Min;DONG Yonglai;CHENG Mojie*. Scandium-Doped La0.8Sr0.2MnO3-δCathode Materials for Intermediate-Temperature Solid Oxide Fuel Cells[J]. Chinese Journal of Catalysis, 2009, 30(2): 95-103.

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Scandium-Doped La0.8Sr0.2MnO3-δCathode Materials for Intermediate-Temperature Solid Oxide Fuel Cells

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