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- W2093156689 abstract "Abstract The composite cathodes LaBaCo 2 O 5+ δ - x wt.% Ag (LBCO- x Ag, x = 20, 30, 40, 50) were prepared by mechanical mixing method for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The experiment results indicated that the addition of a small amount of B 2 O 3 -Bi 2 O 3 -PbO (BBP) frit to LBCO- x Ag can effectively improve the adhesion and strength of cathode membrane without damaging its porous structure. The BBP frit was proved effective for lowering the sintering temperature of LBCO- x Ag to 900 °C. According to the electrochemical impedance spectroscopy and cathodic polarization analysis, the LBCO-30Ag exhibited the best performance and the optimal BBP frit content was 2.5 wt.%. For LBCO-30Ag with 2.5 wt.% BBP frit, the area-specific resistance based on Sm 0.2 Ce 0.8 O 1.9 (SDC) electrolyte decreased by about 57.6% at 700 °C, 60.5% at 750 °C and 75.9% at 800 °C compared to LBCO, and its cathodic overpotential was 10.7 mV at a current density of 0.2 A cm −2 at 700 °C, while the corresponding value for LBCO was 51.0 mV. The addition of Ag and BBP frit to LBCO had no significant effect on the thermal expansion." @default.
- W2093156689 created "2016-06-24" @default.
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- W2093156689 date "2011-12-01" @default.
- W2093156689 modified "2023-10-12" @default.
- W2093156689 title "Performance of LaBaCo2O5+δ-Ag with B2O3-Bi2O3-PbO frit composite cathodes for intermediate-temperature solid oxide fuel cells" @default.
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- W2093156689 doi "https://doi.org/10.1016/j.jpowsour.2011.06.104" @default.
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