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- W2912562957 abstract "Abstract La-doped strontium titanates have attracted much interest as promising reliable ceramic anodes for solid oxide fuel cells (SOFCs) owing to their superior redox-stability. Moreover, recent studies demonstrated that A-site deficiency of the La-doped SrTiO3 perovskite could effectively promote conductivity and catalytic activity, simultaneously. In this study, we developed the LST44-Ce0.9Gd0.1O1.95 (GDC) composite anodes, and investigated their electrochemical performance and redox stability on La0.8Sr0.2Ga0.8Mg0.2O3−δ (LSGM) electrolyte-based SOFCs. During galvanostatic long-term stability tests combined with in situ redox cycles, power out-put performance of the LST44-GDC employed SOFC was initially increased by ∼53% to 0.26 W cm−2 and maintained the high performance over 350 h at 800 °C. Analysis of the accumulated electrochemical impedance spectra during the long-term stability test showed that the electrochemical activity of the LST44-GDC anode was promoted at the initial redox cycling. Consequently, this study demonstrates that A-site deficient LST44-GDC is a promising material as an efficient and redox stable SOFC anode." @default.
- W2912562957 created "2019-02-21" @default.
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- W2912562957 date "2019-05-01" @default.
- W2912562957 modified "2023-10-12" @default.
- W2912562957 title "A-site deficient La0.4Sr0.4TiO3-Ce0.9Gd0.1O1.95 composites as efficient and redox stable anodes for solid oxide fuel cells" @default.
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- W2912562957 doi "https://doi.org/10.1016/j.jallcom.2019.02.180" @default.
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