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- W2353804588 abstract "Solid Oxide Fuel Cell considered as a new electrochemistry power source due to its clear and high efficiency with great application potential.Fluorite Ce0.8 Y0.2-x Cax O2-δ(0.02≤x≤0.10)powders were synthesized by a sol-gel method.The samples were characterized by Fourier transform infrared spectroscopy,thermo-gravimetric analysis,X-ray diffraction,scanning electron microscopy,transmission electron microscopy,AC impedance and thermal expansion,respectively.The results show that powders calcined at 600℃ have a cubic fluorite structure.The average grain sizes are between 5and 10nm.The ultrafine powders of Ce0.8 Y0.2-x Cax O2-δ have a higher sintering activity.The Ce0.8Y0.2-xCaxO2-δ series electrolytic with the higher density of 96% can be obtained after sintered at 1 400℃.Among all the samples,Ce0.8 Y0.1 Ca0.1 O1.85 shows an excellent ionic conductivity of 0.041S/cm(measured at 800 ℃),a lower conductive activation energy of 0.81eV and a suitable thermal expansion property of 13.5×10-6 K-1(from room temperature to 800 ℃)." @default.
- W2353804588 created "2016-06-24" @default.
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- W2353804588 date "2014-01-01" @default.
- W2353804588 modified "2023-09-27" @default.
- W2353804588 title "Properties of Ce_(0.8)Y_(0.2-x)Ca_xO_(2-δ) Electrolyte Prepared by Sol-Gel Process" @default.
- W2353804588 hasPublicationYear "2014" @default.
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