Enhanced Electrochemical Performance of La0.7Pr0.3Ba0.5Sr0.5Co1.5Fe0.5O5+δ Cathodes for Solid Oxide Fuel Cells by La2NiO4 impregnation
Chengcheng Wang,
Zhanggui Li,
Zhiheng Zheng
et al.
Abstract:Three types of double perovskite La1-xPrxBa0.5Sr0.5Co1.5Fe0.5O5+δ(x=1,0.3,0) are prepared using the EDTA-citrate method and identified as solid oxide fuel cell (SOFC) cathodes. The microstructures, as well as electrochemical performances of La1-xPrxBa0.5Sr0.5Co1.5Fe0.5O5+δ (LPBSCF) and La2NiO4-impregnated LPBSCF (LN-LPBSCF) cathodes, are investigated in detail. An optimum impregnation amount of LN-LPBSCF (LN loading of 0.64 mg/cm2) electrode exhibits relatively lower electrode polarization resistance (Rp) and … Show more
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